NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CRAIG S. AARON S 279292 1992 Surface Mine Foreman BRIAN K. ABBOTT SC 2903 13 2013 Surface Construction Supervisor DAVID L. ABBOTT S 4129 06 2006 Surface Mine Foreman TERRY L. ABBOTT S 5093 12 2012 Surface Mine Foreman JAMIE LEE ABDELLA S 639 79 1979 Surface Mine Foreman STEPHEN P. ABEL S 550 79 1979 Surface Mine Foreman WASHINGTON E. ABNER S 3338 99 1999 Surface Mine Foreman GREG ABRAMS S 4710 09 2009 Surface Mine Foreman BRADLEY A. ACORD S 2603 91 1991 Surface Mine Foreman CHARLES E. ACORD SC 1963 98 1998 Surface Construction Supervisor MICHAEL ACORD SC 2465 06 2006 Surface Construction Supervisor JOHN GASTON ACREE S 607 79 1979 Surface Mine Foreman ARNOLD ADAMS SC 603 83 1983 Surface Construction Supervisor BARRY S. ADAMS S 3996 05 2005 Surface Mine Foreman CHRISTOPHER R. ADAMS S 5257 14 2014 Surface Mine Foreman CHRISTOPHER R. ADAMS S 1175 A 2014 Asst. Surface Mine Foreman CLYDE HOWARD ADAMS S 2699 91 1991 Surface Mine Foreman DANNY ADAMS S 3269 98 1998 Surface Mine Foreman DARRELL G. ADAMS SC 128795 1995 Surface Construction Supervisor DAVID C. ADAMS S 4360 07 2007 Surface Mine Foreman DAVID L. ADAMS S 5410 17 2017 Surface Mine Foreman DONNIE E. ADAMS S02419 89 1989 Surface Mine Foreman EARL ADAMS SC 159396 1996 Surface Construction Supervisor EDWARD B. ADAMS S 3506 01 2001 Surface Mine Foreman FRANCIS C. ADAMS SC 270 82 1982 Surface Construction Supervisor GARRETT L. ADAMS S 3309 98 1998 Surface Mine Foreman JAMES A. ADAMS SC 75 82 1982 Surface Construction Supervisor JASON E. ADAMS S 4009 05 2005 Surface Mine Foreman JASON E. ADAMS S 1035 A 2003 Asst. Surface Mine Foreman JOSEPH E. ADAMS S 5213 14 2014 Surface Mine Foreman JOSEPH R. ADAMS S 1068 A 2006 Asst. Surface Mine Foreman LARRY D. ADAMS SC1250 95 1995 Surface Construction Supervisor LLOYD G ADAMS S 3270 98 1998 Surface Mine Foreman MICHAEL E. ADAMS S 5612 19 2019 Surface Mine Foreman MICHAEL E. ADAMS SS 34 05 2005 Shaft and Slope Superintendent PHILLIP L. ADAMS S 3693 03 2003 Surface Mine Foreman RAYMOND L. ADAMS SC1039 92 1992 Surface Construction Supervisor RICHARD L. ADAMS SC1590 96 1996 Surface Construction Supervisor STANLEY M. ADAMS SC958 91 1991 Surface Construction Supervisor TERRY D. ADAMS SC1583 96 1996 Surface Construction Supervisor TERRY G. ADAMS SS 328 99 1999 Shaft & Slope Examiner Foreman THOMAS R. ADAMS S 347 79 1979 Surface Mine Foreman TIMOTHY W. ADAMS S 1418 81 1981 Surface Mine Foreman TIVUS W. ADAMS S 3570 02 2002 Surface Mine Foreman RUSSELL R. ADAMS JR. S 208 78 1978 Surface Mine Foreman BOYD L. ADAMS, JR. S 4901 11 2011 Surface Mine Foreman BOYD L. ADAMS, JR. S 1121 A 2008 Asst. Surface Mine Foreman DONALD R. ADDAIR SC 2511 06 2006 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JAMES W. ADDAIR SC 2802 11 2011 Surface Construction Supervisor KEITH A. ADDAIR S 4156 06 2006 Surface Mine Foreman STEVIE G. ADDAIR S 5185 13 2013 Surface Mine Foreman ALLEN R. ADDISON S 5485 18 2018 Surface Mine Foreman ADAM C. ADKINS S 3659 03 2003 Surface Mine Foreman ALLEN H. ADKINS S 4479 08 2008 Surface Mine Foreman ARNOLD J. ADKINS S 1131 79 1979 Surface Mine Foreman ARTIMUS ADKINS S 229488 1988 Surface Mine Foreman BOBBY JOE ADKINS S 3206 97 1997 Surface Mine Foreman BRIAN L. ADKINS S 5419 17 2017 Surface Mine Foreman CARLOS E. ADKINS S 172383 1983 Surface Mine Foreman CAZZIE E. ADKINS SC 2266 04 2004 Surface Construction Supervisor CECIL B. ADKINS S 486 79 1979 Surface Mine Foreman CHAD J. ADKINS S 4288 07 2007 Surface Mine Foreman CHARLES R. ADKINS SC1370 95 1995 Surface Construction Supervisor CURTIS L. ADKINS S 4762 10 2010 Surface Mine Foreman DAMON G. ADKINS SC 2056 00 2000 Surface Construction Supervisor DAVID H. ADKINS S 4015 05 2005 Surface Mine Foreman DENNIS M. ADKINS SC1261 95 1995 Surface Construction Supervisor DONALD L. ADKINS S 2418 90 1990 Surface Mine Foreman DWAYNE L. ADKINS S 2979 94 1994 Surface Mine Foreman EDDIE A. ADKINS S 1317 80 1980 Surface Mine Foreman FLOYD B. ADKINS SC604 83 1983 Surface Construction Supervisor GARY A. ADKINS SC 3132 19 2019 Surface Construction Supervisor GARY D. ADKINS S 3760 04 2004 Surface Mine Foreman GARY J. ADKINS SC 209 82 1982 Surface Construction Supervisor GARY L. ADKINS SC1456 95 1995 Surface Construction Supervisor HAROLD EUGENE ADKINS S 2381 89 1989 Surface Mine Foreman JACKSON D. ADKINS S 1352 80 1934 Surface Mine Foreman JAMES E. ADKINS SC1020 92 1992 Surface Construction Supervisor JAMES L. ADKINS S 4936 11 2011 Surface Mine Foreman JAMES L. ADKINS SC1457 95 1995 Surface Construction Supervisor JARRED M. ADKINS S 5279 15 2015 Surface Mine Foreman JEREMY D. ADKINS S 3656 03 2003 Surface Mine Foreman JONATHAN D. ADKINS S 1624 82 1982 Surface Mine Foreman JOSEPH D. ADKINS S 4420 08 2008 Surface Mine Foreman JOSEPH D. ADKINS S 1098 A 2007 Asst. Surface Mine Foreman KENNETH I. ADKINS S 4261 07 2007 Surface Mine Foreman KEVIN S. ADKINS S 4531 08 2008 Surface Mine Foreman LARRY ADKINS SC 2505 06 2006 Surface Construction Supervisor LARRY E. ADKINS S 5082 12 2012 Surface Mine Foreman LARRY ZANE ADKINS S00593 79 1979 Surface Mine Foreman MATTHEW L. ADKINS S 3413 00 2000 Surface Mine Foreman MELVIN DAVID ADKINS S 2891 93 1993 Surface Mine Foreman MICHAEL JAMES ADKINS S 1772 83 1983 Surface Mine Foreman NATHAN D. ADKINS SC 2041 00 2000 Surface Construction Supervisor PAUL ADKINS S 3012 94 1994 Surface Mine Foreman PAUL ADKINS SS 28293 1993 Shaft & Slope Examiner Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE PAUL ADKINS SC1115 94 1994 Surface Construction Supervisor RANDALL A. ADKINS SC 2807 11 2011 Surface Construction Supervisor REGINALD ADKINS S 2374 89 1989 Surface Mine Foreman RICHARD B. ADKINS S 3313 98 1998 Surface Mine Foreman RICKY ADKINS S 3426 00 2000 Surface Mine Foreman RICKY L. ADKINS S 1778 83 1983 Surface Mine Foreman ROBERT D. ADKINS SC 2207 03 2003 Surface Construction Supervisor ROBERT L. ADKINS SC 2685 09 2009 Surface Construction Supervisor ROGER E. ADKINS S 2813 92 1992 Surface Mine Foreman ROGER G. ADKINS SC1142 94 1994 Surface Construction Supervisor ROSS ADKINS SC 2989 14 2014 Surface Construction Supervisor SCOTT A. ADKINS S 3210 97 1997 Surface Mine Foreman STEVEN B. ADKINS SC 2674 09 2009 Surface Construction Supervisor STEVEN R. ADKINS S 4884 11 2011 Surface Mine Foreman TERRY L. ADKINS SC1410 95 1995 Surface Construction Supervisor TERRY ELMER ADKINS S 3025 94 1994 Surface Mine Foreman THOMAS F. ADKINS SC1447 95 1995 Surface Construction Supervisor THOMAS ALLEN ADKINS S2574 90 1990 Surface Mine Foreman TIMOTHY C. ADKINS S 523 79 1979 Surface Mine Foreman VONDLE ADKINS S 2909 93 1993 Surface Mine Foreman WALLACE F. ADKINS S 3505 01 2001 Surface Mine Foreman WANDELL B. ADKINS SC 2986 14 2014 Surface Construction Supervisor WETZEL ADKINS S 885 79 1979 Surface Mine Foreman WILBURN ADKINS S 2499 90 1990 Surface Mine Foreman WILLIAM G. ADKINS S 257 79 1979 Surface Mine Foreman WILLIAM R. ADKINS S 2228 87 1987 Surface Mine Foreman WILLIE B. ADKINS S 5301 15 2015 Surface Mine Foreman LARRY K. ADKINS II S 4463 08 2008 Surface Mine Foreman ALBERT L. ADKINS JR. S 1196 79 1979 Surface Mine Foreman LEMMIE ADKINS JR. S 3607 02 2002 Surface Mine Foreman DOUGLAS G. ADKINS, II S 5638 20 2020 Surface Mine Foreman JACKSON D. ADKINS, JR. S 2041 85 1985 Surface Mine Foreman ROBERT H. AHNER S 3090 95 1995 Surface Mine Foreman JOHN C. AKER SC 947 91 1991 Surface Construction Supervisor STEPHEN S. AKER SC 948 91 1991 Surface Construction Supervisor JODY D. AKERS S 3538 01 2001 Surface Mine Foreman MARK E. AKERS SC 1982 99 1999 Surface Construction Supervisor MICHAEL MANN AKERS S 1279 80 1980 Surface Mine Foreman RANDALL E. AKERS S 4716 09 2009 Surface Mine Foreman ROGER LEE AKERS S 2174 87 1987 Surface Mine Foreman THOMAS E. AKERS S 1527 81 1981 Surface Mine Foreman WALTER R. AKERS S 1393 80 1980 Surface Mine Foreman CHARLES F. AKERS III S 3662 03 2003 Surface Mine Foreman THOMAS E. ALBAUGH S 3366 00 2000 Surface Mine Foreman ALFRED GENE ALDERMAN SC 654 83 1983 Surface Construction Supervisor DELL R. ALDERMAN SC 2563 07 2007 Surface Construction Supervisor ERNEST PATRICK ALDERMAN S 2733 91 1991 Surface Mine Foreman TEDDY P. ALDERMAN SC 855 86 1986 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILLIAM J. ALDERMAN S 1478 82 1982 Surface Mine Foreman JEREMY M. ALDERT S 1104 A 2008 Asst. Surface Mine Foreman ALAN C. ALESHIRE S 5288 15 2015 Surface Mine Foreman DAVID A. ALESHIRE S 3392 00 2000 Surface Mine Foreman JIMMY COFER ALESHIRE S 4733 10 2010 Surface Mine Foreman DAVE ALEXANDER S 838 79 1979 Surface Mine Foreman FRED A. ALEXANDER S 102 78 1978 Surface Mine Foreman GERALD W. ALEXANDER S 3809 04 2004 Surface Mine Foreman PAUL E. ALEXANDER S 2340 88 1988 Surface Mine Foreman ROBERT ALEXANDER S 1720 82 1982 Surface Mine Foreman THOMAS ALEXANDER S 1097 79 1979 Surface Mine Foreman TOM L. ALEXANDER S 3785 04 2004 Surface Mine Foreman KEITH A. ALFREY S 3902 05 2005 Surface Mine Foreman EDWARD G. ALIFF S 1442 81 1981 Surface Mine Foreman MILTON GILBERT ALIFF S 1194 79 1979 Surface Mine Foreman ANDREW C. ALLEN SC 3056 17 2017 Surface Construction Supervisor BOYD R. ALLEN S 3863 05 2005 Surface Mine Foreman BRAD E. ALLEN SC 2537 07 2007 Surface Construction Supervisor CLAUDE W. ALLEN S 3491 01 2001 Surface Mine Foreman DAVID W ALLEN SC 1895 98 1998 Surface Construction Supervisor HOWARD R. ALLEN S 4995 11 2011 Surface Mine Foreman JEFFERY W. ALLEN S 2893 93 1993 Surface Mine Foreman JEFFREY C. ALLEN SC1232 95 1995 Surface Construction Supervisor JEFFREY H. ALLEN SC1557 96 1996 Surface Construction Supervisor JEFFREY W. ALLEN SC1483 95 1995 Surface Construction Supervisor JOE J. ALLEN S 585 79 1979 Surface Mine Foreman JOHN L. ALLEN SC156 82 1982 Surface Construction Supervisor RICK ALLEN S 4661 09 2009 Surface Mine Foreman ROBERT E. ALLEN S 863 79 1979 Surface Mine Foreman SHAUN W. ALLEN S 3490 01 2001 Surface Mine Foreman EDWARD B. ALLEN JR. S 216 78 1978 Surface Mine Foreman GROVER ALLEN JR. S 3942 05 2005 Surface Mine Foreman BASIL Y. ALLEN, II S 1020 A 2002 Asst. Surface Mine Foreman JAMES V. ALLGOOD SC 1947 98 1998 Surface Construction Supervisor GERALD R. ALLISON S 2920 93 1993 Surface Mine Foreman RONALD G. ALLISON SC 2449 06 2006 Surface Construction Supervisor ERIC D. ALLMAN SC 3161 20 2020 Surface Construction Supervisor HARRY B. ALLRED SC335 83 1983 Surface Construction Supervisor GUST ALMQUIST SC 3009 14 2014 Surface Construction Supervisor GUST J. ALMQUIST SS 391 18 2018 Shaft & Slope Examiner Foreman ANTONIO P. ALTIERI S 4357 07 2007 Surface Mine Foreman TONY P. ALTIERI SC 2156 02 2002 Surface Construction Supervisor HARRY R. ALTIMUS SS 191 80 1980 Shaft & Slope Examiner Foreman JAMES ALTIZER S 953 79 1979 Surface Mine Foreman JOHN H. ALVAREZ S 804 79 1979 Surface Mine Foreman JOSEPH ALVAREZ S 802 79 1979 Surface Mine Foreman ANDREW K. ALVIS S 4928 11 2011 Surface Mine Foreman ANDREW K. ALVIS SC 2794 11 2011 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ALVIN L. AMICK S 1562 82 1982 Surface Mine Foreman MICHAEL R. AMICK S 5072 12 2012 Surface Mine Foreman RICHARD A. AMICK S 4481 08 2008 Surface Mine Foreman CARL E. AMORESE SC877 87 1987 Surface Construction Supervisor ARVIL AMOS SC1821 97 1997 Surface Construction Supervisor BRYAN K. ANDERSON S 3758 04 2004 Surface Mine Foreman CHARLES D. ANDERSON S 3867 05 2005 Surface Mine Foreman DWAYNE K. ANDERSON S 5017 12 2012 Surface Mine Foreman EDWARD E. ANDERSON S 176583 1983 Surface Mine Foreman ERIC S. ANDERSON S 3574 02 2002 Surface Mine Foreman ERIC S. ANDERSON S 1006 A 2001 Asst. Surface Mine Foreman ESTEL EUGENE ANDERSON S 1735 83 1983 Surface Mine Foreman ETHAN M. ANDERSON S 5518 18 2018 Surface Mine Foreman HERBERT C. ANDERSON S 984 79 1979 Surface Mine Foreman HUGH G. ANDERSON SC892 89 0 Surface Construction Supervisor JAMES W. ANDERSON S 592 79 1979 Surface Mine Foreman JAMES W. ANDERSON S 118279 1979 Surface Mine Foreman JEFFERY C. ANDERSON S 5354 16 2016 Surface Mine Foreman JEFFERY L. ANDERSON S 4027 06 2006 Surface Mine Foreman JESSE LEE ANDERSON S 129180 1980 Surface Mine Foreman KEVIN L. ANDERSON S 4007 05 2005 Surface Mine Foreman LELAND EUGENE ANDERSON SC377 83 1983 Surface Construction Supervisor MICHAEL H. ANDERSON S 2343 88 1988 Surface Mine Foreman MILLARD O. ANDERSON S 233 78 1978 Surface Mine Foreman ROBERT P. ANDERSON SC 1873 98 1998 Surface Construction Supervisor RODNEY B. ANDERSON SC 2408 06 2006 Surface Construction Supervisor ROGER L. ANDERSON SC1189 94 1994 Surface Construction Supervisor RONALD L. ANDERSON SC 2615 08 2008 Surface Construction Supervisor STEVEN A. ANDERSON SC1818 97 1997 Surface Construction Supervisor THOMAS W. ANDERSON SC 1977 99 1999 Surface Construction Supervisor ALBERT P. ANDERSON, III SC 2418 06 2006 Surface Construction Supervisor ARTHUR L. ANDERSON, JR. S 862 79 1979 Surface Mine Foreman CURRY P. ANDERSON, JR. S 3844 04 2004 Surface Mine Foreman ARTHUR LEWIS ANDERSON, SR. S 879 79 1979 Surface Mine Foreman DOUGLAS M. ANDREWS SC1621 96 1996 Surface Construction Supervisor JEFFREY P. ANDREWS S 201485 1985 Surface Mine Foreman ANDREW J. ANDRIGO S 4338 07 2007 Surface Mine Foreman JEFFREY S. ANGEL S 3322 99 1999 Surface Mine Foreman ROBERT C. ANGLES S 3383 00 2000 Surface Mine Foreman DAVID W. ANGUS, JR. SC 2432 06 2006 Surface Construction Supervisor FLOYD D. ANKROM SS 254 89 1953 Shaft & Slope Examiner Foreman WILLIAM J. ANKROM S 121379 1979 Surface Mine Foreman GREGORY S. ANNON S 2307 88 1988 Surface Mine Foreman WILLIAM BURL ANNON S 302 79 1979 Surface Mine Foreman CARL E. ANSELL SC 2922 13 2013 Surface Construction Supervisor RICHARD R. ANTHONY S 552 79 1979 Surface Mine Foreman RUDY A. ANTHONY SS 327 99 1999 Shaft & Slope Examiner Foreman STEVE ALLEN ANTOLINE S 180028 1983 Asst. Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MARTIN ANTULOV S 939 79 1979 Surface Mine Foreman GARY R. APPEL S 965 79 1979 Surface Mine Foreman HAROLD R. ARBAUGH S 903 79 1979 Surface Mine Foreman JOHN W. ARBAUGH S 615 79 1979 Surface Mine Foreman KEVIN E. ARBAUGH SC1577 96 1996 Surface Construction Supervisor LARRY A. ARBOGAST S 116679 1979 Surface Mine Foreman RONNIE W. ARBOGAST SC412 83 1983 Surface Construction Supervisor ROWDY J. ARBOGAST SC 2991 14 2014 Surface Construction Supervisor SHELDON D. ARBOGAST SC1309 95 1995 Surface Construction Supervisor STEVE S. ARBOGAST SC1307 95 1995 Surface Construction Supervisor STEVEN S. ARBOGAST S 3480 01 2001 Surface Mine Foreman JACK ARMAN SC 2190 02 2002 Surface Construction Supervisor HENRY M. ARMENTROUT S 241189 1989 Surface Mine Foreman LARRY A. ARMENTROUT S 264291 1991 Surface Mine Foreman WILLIAM ARMENTROUT SC379 83 1983 Surface Construction Supervisor WILLIAM M. ARMENTROUT S 5280 15 2015 Surface Mine Foreman PHILIP E. ARMITAGE SC 2839 11 2011 Surface Construction Supervisor BOBBY ARMSTRONG S 4816 10 2010 Surface Mine Foreman GEORGE ARMSTRONG SC1695 97 0 Surface Construction Supervisor JAMES R. ARMSTRONG SC 3033 16 2016 Surface Construction Supervisor ROBERT A. ARMSTRONG S 4248 06 2006 Surface Mine Foreman BRANDON E. ARNETT SC 2740 10 2010 Surface Construction Supervisor CLYDE K. ARNETT S 4468 08 2008 Surface Mine Foreman DAVID V. ARNETT SC 1995 99 1999 Surface Construction Supervisor DENCIL ARNETT S 2724 91 1991 Surface Mine Foreman DONALD L. ARNETT SC 1996 99 1999 Surface Construction Supervisor JAMES A. ARNETT S 4125 06 2006 Surface Mine Foreman KEITH R. ARNETT S 5101 12 2012 Surface Mine Foreman DAVID C. ARNOLD SC1539 96 1996 Surface Construction Supervisor FLOYD D. ARNOLD SC1798 97 1997 Surface Construction Supervisor FRED G. ARNOLD SC1538 96 1996 Surface Construction Supervisor KELLY ARNOLD SC1515 96 1996 Surface Construction Supervisor ROGER D. ARNOLD S 3877 05 2005 Surface Mine Foreman CHARLES L. ARTHUR SC956 91 1991 Surface Construction Supervisor EDGAR P. ARTHUR S 150281 1981 Surface Mine Foreman ROOSEVELT ARTHUR S 799 79 1979 Surface Mine Foreman ROOSEVELT ARTHUR SC181 82 1982 Surface Construction Supervisor STEVEN RAY ARTHUR S 2474 90 1990 Surface Mine Foreman BILLY W. ARTRIP SC599 83 1983 Surface Construction Supervisor DARRELL L. ARTRIP SC 2112 01 2001 Surface Construction Supervisor ANDREW S. ASBURY S 5397 17 2017 Surface Mine Foreman CHARLES E. ASBURY SC1398 95 1995 Surface Construction Supervisor MONTY ASBURY S 3598 02 2002 Surface Mine Foreman TED J. ASBURY S 1493 81 1981 Surface Mine Foreman HENRY J. ASBURY, JR. S 223587 1987 Surface Mine Foreman JAMES R. ASH S 709 79 1979 Surface Mine Foreman WILLIAM D. ASH S 3188 96 1996 Surface Mine Foreman HARRY E. ASHBY SC 526 83 1983 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JAMES M. ASHBY S 5639 20 2020 Surface Mine Foreman DOUGLAS W. ASHCRAFT SC195 82 1982 Surface Construction Supervisor FRANK L. ASHCRAFT S 4214 06 2006 Surface Mine Foreman ALAN K. ASHLEY S 3006 94 1994 Surface Mine Foreman ALVA L. ASHLEY SS 378 08 2008 Shaft & Slope Examiner Foreman RICHARD E. ASHLEY S 2894 93 1993 Surface Mine Foreman JARED D. ATHA S 4818 10 2010 Surface Mine Foreman CURTIS ATKINS S 4833 10 2010 Surface Mine Foreman JOHN EDWARD ATKINS S 900 79 1979 Surface Mine Foreman WILLIAM L. ATKINS, JR S 3500 01 1996 Surface Mine Foreman DENNIS R. ATKINS, JR. SC 2502 06 2006 Surface Construction Supervisor JAMES E. ATKINSON S 227088 1988 Surface Mine Foreman WILLIAM G. ATKINSON S 5293 15 2015 Surface Mine Foreman CLYDE VERLIN ATTIC S 497 79 1979 Surface Mine Foreman ROBERT L. ATWATER SC356 83 1983 Surface Construction Supervisor HERBERT L. ATWELL S 4306 07 2007 Surface Mine Foreman ROBERT W. ATWELL, JR. SS 69 75 1975 Shaft & Slope Examiner Foreman ROBERT W. ATWELL, SR. SS 72 75 1975 Shaft & Slope Examiner Foreman ROBERT W. ATWELL, SR. SC641 83 1983 Surface Construction Supervisor BILL K. AUBIEL S 3885 05 2005 Surface Mine Foreman ROBERT A. AUBIEL S 3884 05 2005 Surface Mine Foreman ERICE V. AUGUSTINE SC332 83 1983 Surface Construction Supervisor LANDON C. AUSBAND SS 162 79 1979 Shaft & Slope Examiner Foreman DONALD H. AYALA S 4419 08 2008 Surface Mine Foreman JAMES H. AYERS S 1051 79 1979 Surface Mine Foreman KENNETH E. AYERS SS 72 07 2007 Shaft and Slope Superintendent LESLIE H. AYERS S 3466 01 2001 Surface Mine Foreman MARK S. AYERS SC 2582 08 2008 Surface Construction Supervisor JOSEPH G. AYERS II S 5164 13 2013 Surface Mine Foreman JAMES A. BABB SS 108 77 0 Shaft & Slope Examiner Foreman MATTHEW D. BABER S 4594 09 2009 Surface Mine Foreman DAVID A. BABYAK SS 335 02 2002 Shaft & Slope Examiner Foreman MATTHEW E. BACH SC 3136 19 2019 Surface Construction Supervisor DAVID S. BACHMAN S 5562 19 2019 Surface Mine Foreman HARVEY BACHMAN SC1725 97 1997 Surface Construction Supervisor MICHAEL R. BACHMAN S 1118 79 1979 Surface Mine Foreman RANDOLPH L. BACHMAN S 1117 79 1979 Surface Mine Foreman GEORGE F. BACK S 5146 13 2013 Surface Mine Foreman STEVEN A. BACK S 5453 17 2017 Surface Mine Foreman COBERT B. BACKUS S 2099 86 1986 Surface Mine Foreman COBERT E. BACKUS SC485 83 1983 Surface Construction Supervisor ERNEST F. BACKUS S 606 79 1979 Surface Mine Foreman MIKE F. BADZEK SC 567 83 1983 Surface Construction Supervisor RICHARD D. BAER SC 2057 00 2000 Surface Construction Supervisor DAVE BAHURIAH SC 106893 1993 Surface Construction Supervisor ALLEN W. BAILES SC 2036 00 2000 Surface Construction Supervisor ERIC J. BAILES S 5415 17 2017 Surface Mine Foreman KEITH BAILES S 4783 10 2010 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE NELSON P. BAILES SC666 83 1983 Surface Construction Supervisor THOMAS M. BAILES S 1816 83 1983 Surface Mine Foreman WILLIAM C. BAILES SC1631 96 1996 Surface Construction Supervisor AUSTIN M. BAILEY S 5626 20 2020 Surface Mine Foreman BASIL BAILEY SC1348 95 1995 Surface Construction Supervisor BENJAMIN N. BAILEY S 3951 05 2005 Surface Mine Foreman CHARLES W. BAILEY S 3378 00 2000 Surface Mine Foreman DENNIS K. BAILEY S 1330 80 1980 Surface Mine Foreman DONALD L. BAILEY SS 20 04 2004 Shaft and Slope Superintendent DONALD L. BAILEY SC 2781 11 2011 Surface Construction Supervisor DONNIE S. BAILEY S 3547 01 2001 Surface Mine Foreman GERALD Z. BAILEY S 3810 04 2004 Surface Mine Foreman GREGORY A. BAILEY SC1024 92 0 Surface Construction Supervisor GREGORY L. BAILEY SC 2758 10 2010 Surface Construction Supervisor HASSELL BAILEY S 2520 90 1990 Surface Mine Foreman JACK M. BAILEY S 737 79 1979 Surface Mine Foreman JAMES W. BAILEY SC1493 96 1996 Surface Construction Supervisor JASON N. BAILEY S 4942 11 2011 Surface Mine Foreman KENNETH D. BAILEY S 3013 94 1994 Surface Mine Foreman KENNETH D. BAILEY S 5240 14 2014 Surface Mine Foreman KEVIN R. BAILEY S 5278 15 2015 Surface Mine Foreman LEWIS W. BAILEY SC491 83 1983 Surface Construction Supervisor LONNY R. BAILEY S 3437 01 2001 Surface Mine Foreman LONNY R. BAILEY SC 2111 01 2001 Surface Construction Supervisor MATTHEW BAILEY S 4964 11 2011 Surface Mine Foreman MICHAEL A. BAILEY SC 2754 10 2010 Surface Construction Supervisor NICH0LAS R. BAILEY SC 2852 12 2012 Surface Construction Supervisor RANDALL D. BAILEY S 2978 94 1994 Surface Mine Foreman RICHARD F. BAILEY SC285 83 1983 Surface Construction Supervisor ROBERT D. BAILEY SC1378 95 1995 Surface Construction Supervisor ROCKY C. BAILEY S 4885 11 2011 Surface Mine Foreman ROY K. BAILEY S 4166 06 2006 Surface Mine Foreman SCOTT D. BAILEY S3236 97 1997 Surface Mine Foreman STEPHEN P. BAILEY S 4127 06 2006 Surface Mine Foreman STEVEN C. BAILEY S 4996 11 2011 Surface Mine Foreman TERENCE D. BAILEY S 3988 05 2005 Surface Mine Foreman TIMOTHY W. BAILEY S 3682 03 2003 Surface Mine Foreman WALTER T. BAILEY S 5019 12 2012 Surface Mine Foreman CARL L. BAILEY III S 5499 18 2018 Surface Mine Foreman ELMER R. BAILEY, JR. S 5381 16 2016 Surface Mine Foreman JACK BAILIE JR. SC 2019 99 1999 Surface Construction Supervisor DAVID E. BAIR JR S 3595 02 2002 Surface Mine Foreman DAVID E. BAIR JR S 1007 A 2001 Asst. Surface Mine Foreman BRIAN S. BAISDEN S 3442 01 2001 Surface Mine Foreman CLIFFORD B. BAISDEN S 3664 03 2003 Surface Mine Foreman EDWARD BAISDEN S 1847 84 1984 Surface Mine Foreman JERRY DALE BAISDEN S 1413 81 1981 Surface Mine Foreman JIMMY J. BAISDEN S 4862 10 2010 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOE E. BAISDEN S 1785 31 1983 Asst. Surface Mine Foreman JOHN K. BAISDEN S 4574 08 2008 Surface Mine Foreman PHILLIP E. BAISDEN S 3781 04 2004 Surface Mine Foreman PHILLIP E. BAISDEN S 1045 A 2004 Asst. Surface Mine Foreman RICHARD L. BAISDEN S 4371 07 2007 Surface Mine Foreman ROBERT S. BAISDEN S 3571 02 2002 Surface Mine Foreman STEPHEN M. BAISDEN S 3708 03 2003 Surface Mine Foreman JOHN E. BAISDEN JR. S 728 79 1979 Surface Mine Foreman LANDEN BAISDEN, III S 3495 01 2001 Surface Mine Foreman CARL E. BAISDEN, JR. S 3010 94 1994 Surface Mine Foreman MIKE W. BAISI S 1977 84 1984 Surface Mine Foreman CLIFFORD B. BAKER S 194 78 1978 Surface Mine Foreman CLIFFORD B. BAKER SC1350 95 1995 Surface Construction Supervisor DANNIE BAKER SC1036 92 1992 Surface Construction Supervisor JAMES A. BAKER S 4690 09 2009 Surface Mine Foreman JAMES R. BAKER S 4490 08 2008 Surface Mine Foreman JOHN D. BAKER S 3793 04 2004 Surface Mine Foreman KEVIN E. BAKER S 4304 07 2007 Surface Mine Foreman LARRY D. BAKER S 3063 95 1995 Surface Mine Foreman LEROY BAKER S 5144 13 2013 Surface Mine Foreman LESLIE R. BAKER S 4138 06 2006 Surface Mine Foreman MICHAEL W. BAKER S 1176 A 2015 Asst. Surface Mine Foreman RAYMOND L. BAKER S 3062 95 1995 Surface Mine Foreman RICHARD A. BAKER S 4130 06 2006 Surface Mine Foreman RODNEY L. BAKER S 2023 85 1985 Surface Mine Foreman RODNEY L. BAKER SC346 83 1983 Surface Construction Supervisor GEORGE BALDWIN SC1735 97 1997 Surface Construction Supervisor JESS H. BALDWIN S 2756 92 1992 Surface Mine Foreman JUNIOR BALDWIN S 4725 10 2010 Surface Mine Foreman JUNIOR BALDWIN S 1130 A 2009 Asst. Surface Mine Foreman TONY BALDWIN SC1310 95 1995 Surface Construction Supervisor ARLIN D. BALL S 318 79 1979 Surface Mine Foreman BILLY J. BALL SC1351 95 1995 Surface Construction Supervisor DANA L. BALL SC1458 95 1995 Surface Construction Supervisor DAVID A. BALL S 3995 05 2005 Surface Mine Foreman DAVID E. BALL S 3572 02 2002 Surface Mine Foreman GARY R. BALL S 2963 94 1994 Surface Mine Foreman HERMAN BALL S 1598 82 1982 Surface Mine Foreman JAMES B. BALL S 2613 91 1991 Surface Mine Foreman JOHNNY F. BALL SM 1564 82 1982 Surface Mine Foreman JON E. BALL S 5159 13 2013 Surface Mine Foreman LEWIS COLEN BALL S 388 79 1979 Surface Mine Foreman MICHAEL A. BALL S 5557 18 2018 Surface Mine Foreman RANSOM L. BALL S 2443 89 1989 Surface Mine Foreman ROGER D. BALL S 3395 00 2000 Surface Mine Foreman ROY D. BALL SC712 84 1984 Surface Construction Supervisor TERRY G. BALL S 4020 05 2005 Surface Mine Foreman WILLIAM N. BALL S 5328 15 2015 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILLIAM R. BALL, JR. S 4004 05 2005 Surface Mine Foreman CHARLES W. BALLARD SC 2376 05 2005 Surface Construction Supervisor DENNIE C. BALLARD S 3043 95 1995 Surface Mine Foreman DONALD L. BALLARD SC783 85 1985 Surface Construction Supervisor RALPH L. BALLARD S 2240 87 1987 Surface Mine Foreman JEFFREY S. BALLARD JR SC 2997 14 2014 Surface Construction Supervisor CALVIN C. BALLARD JR. SC1846 97 1997 Surface Construction Supervisor FRANK E. BALLATO S 533 79 1979 Surface Mine Foreman MICHAEL J. BALLATO S 3484 01 2001 Surface Mine Foreman CHARLIE BALLEW S 890 79 1979 Surface Mine Foreman CHARLIE BALLEW SC174 82 1982 Surface Construction Supervisor GARY BALLINGER SC1259 95 1995 Surface Construction Supervisor SHAWN A. BANDY SC 3121 19 2019 Surface Construction Supervisor DARREL W. BANE SC1658 96 1996 Surface Construction Supervisor ERIC L. BANE S 5215 14 2014 Surface Mine Foreman JOSHUA A. BANE SC 3072 17 2017 Surface Construction Supervisor RAYMOND C. BANE SC 2247 04 2004 Surface Construction Supervisor BRIAN S. BANKS SC 2310 05 2005 Surface Construction Supervisor DAVID L. BANKS S 2246 87 1987 Surface Mine Foreman DAVID L. BANKS SC1487 96 1996 Surface Construction Supervisor RUSSELL D. BANKS SS 221 82 1982 Shaft & Slope Examiner Foreman JAMES E. BARBE S 4624 09 2009 Surface Mine Foreman ROCKNE K. BARBER SC 2126 01 2001 Surface Construction Supervisor EDWARD BARGER S 4475 08 2008 Surface Mine Foreman JAMES E. BARGER S 2863 92 1957 Surface Mine Foreman ROGER D. BARGER S 456 79 1979 Surface Mine Foreman EVERETT C. BARHOW S 698 79 1979 Surface Mine Foreman BENJAMIN J. BARKER S 5283 15 2015 Surface Mine Foreman CHARLES B. BARKER SC824 86 1986 Surface Construction Supervisor JAMES D. BARKER S 1487 81 1981 Surface Mine Foreman JAMES W. BARKER S 3883 05 2005 Surface Mine Foreman JAMES W. BARKER S 4621 09 2009 Surface Mine Foreman JOHN R. BARKER S 3587 02 2002 Surface Mine Foreman RAYMOND R. BARKER S 2287 88 1988 Surface Mine Foreman RAYMOND S. BARKER S 5225 14 2014 Surface Mine Foreman HARY L. BARKLEY SS 219 82 1982 Shaft & Slope Examiner Foreman JOHN F. BARLETT SC1452 95 1995 Surface Construction Supervisor DONALD A. BARNES SC107 82 1982 Surface Construction Supervisor JOHN A. BARNES SC 516 83 1983 Surface Construction Supervisor ROBERT L. BARNES, JR. SC835 86 1986 Surface Construction Supervisor ALEX L. BARNETT S 5063 12 2012 Surface Mine Foreman BARRY J. BARNETT S 3835 04 2004 Surface Mine Foreman GARY W. BARNETT S 2367 88 1988 Surface Mine Foreman GLENN R. BARNETT S 1320 80 1980 Surface Mine Foreman JEFF W. BARNETT S 494 79 1979 Surface Mine Foreman JEFFREY L. BARNETT S 2629 91 1991 Surface Mine Foreman JERRY BARNETT SS 165 79 1979 Shaft & Slope Examiner Foreman MICHAEL D. BARNETT SC 2849 12 2012 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ROBERT C. BARNETT SC848 86 1986 Surface Construction Supervisor TIMOTHY R. BARNETT SC301 83 1983 Surface Construction Supervisor ROBERT C. BARNETT, JR. SC846 86 1986 Surface Construction Supervisor CRAIG E. BARNETTE S 3257 98 1998 Surface Mine Foreman DANNY E. BARNETTE SC1615 96 1996 Surface Construction Supervisor EDDIE R. BARNETTE S 5330 15 2015 Surface Mine Foreman RALPH E. BARNETTE SC 2290 05 2005 Surface Construction Supervisor BOBBY BARNETTE II S 4455 08 2008 Surface Mine Foreman DUNCAN BARNHART SS 265 89 1989 Shaft & Slope Examiner Foreman HARRY P. BARNHART SC 535 83 1983 Surface Construction Supervisor ROY R. BARNHART SS 271 91 1991 Shaft & Slope Examiner Foreman TROY E. BARNHART SS 334 02 2002 Shaft & Slope Examiner Foreman JEFFREY W. BARNHOUSE S 4461 08 2008 Surface Mine Foreman DENNIS E. BARNICK SC1601 96 1996 Surface Construction Supervisor ALBERT BARNOSKY S 945 79 1979 Surface Mine Foreman JEFF L. BARNOSKY S 2662 91 1991 Surface Mine Foreman LOUIE BARNOSKY S 834 79 1979 Surface Mine Foreman PAUL BARNOSKY S 1704 82 1982 Surface Mine Foreman RICHARD L. BARNOSKY S 837 79 1979 Surface Mine Foreman ROBERT A. BARNOSKY S 4348 07 2007 Surface Mine Foreman WILLIAM M. BARNOSKY S 3174 96 1996 Surface Mine Foreman ROBERT L. BARNOT SC 2531 07 2007 Surface Construction Supervisor ROBERT L. BARNS, SR. SC836 86 1986 Surface Construction Supervisor JAMES N. BARR SC 2304 05 2005 Surface Construction Supervisor LACY G. BARR S 3108 95 1995 Surface Mine Foreman ANGEL B. BARRAGAN SC 2546 07 2007 Surface Construction Supervisor JAMES M. BARRETT S 3003 94 1994 Surface Mine Foreman PHILLIP R. BARRICK SC 2136 01 2001 Surface Construction Supervisor JAMES E. BARRICKMAN SC002 82 1982 Surface Construction Supervisor ANTHONY R. BARRY SC1845 97 1997 Surface Construction Supervisor WILLIAM EMMIT BARTEE S 111 79 1979 Surface Mine Foreman JOSEPH C. BARTHOLOW SC 3049 17 2017 Surface Construction Supervisor ROBERT C. BARTHOLOW SC 2755 10 2010 Surface Construction Supervisor DANIEL W. BARTLEY S 5611 19 2019 Surface Mine Foreman JAMES A. BARTLEY S 4022 05 2005 Surface Mine Foreman JAMES BARTON S 182484 1984 Surface Mine Foreman JERRY C. BARTON S 161782 1982 Surface Mine Foreman RONALD L. BARTON S 3932 05 2005 Surface Mine Foreman TERRY L. BARTON S 2862 92 1992 Surface Mine Foreman TERRY L. BARTON SC 1971 98 1998 Surface Construction Supervisor CLIFFORD BARTRAM S 4094 06 2006 Surface Mine Foreman JAMES P. BARTRAM SC 2538 07 2007 Surface Construction Supervisor JAMES PAUL BARTRAM S 3767 04 2004 Surface Mine Foreman ROBERT BARZANTI SC 3075 17 2017 Surface Construction Supervisor JAMES C. BASH SC1688 97 1997 Surface Construction Supervisor DARRELL D. BASHAM S 3610 02 2002 Surface Mine Foreman DUSTIN R. BASHAM S 5165 13 2013 Surface Mine Foreman MARK D. BASILE S 2667 91 1991 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JAMES E. BASS RBS 4 19 2019 Raised Bore/Blind Drilling Super. JAMES L. BASS S 2091 86 1986 Surface Mine Foreman ROBERT P. BASS S 2133 86 1986 Surface Mine Foreman THOMAS E. BASS S 3597 02 2002 Surface Mine Foreman WILLIAM S. BASS S 2101 86 1986 Surface Mine Foreman JAMES L. BASS, JR. S 2090 86 1986 Surface Mine Foreman ROBIE D. BASSETT SC1105 94 1994 Surface Construction Supervisor CONRAD D. BASTON S 2876 93 1993 Surface Mine Foreman DAVID C. BATANIAN SC 2453 06 2006 Surface Construction Supervisor CHARLES D. BATEMAN SS 132 78 0 Shaft & Slope Examiner Foreman MICHAEL R. BATEMAN S 4030 06 2006 Surface Mine Foreman JIMMY L. BATEMAN, JR. S 3943 05 2005 Surface Mine Foreman GREGORY D. BATES S 1822 84 1984 Surface Mine Foreman LEWIS F. BATES S 773 79 1979 Surface Mine Foreman MORGAN W. BATTON SC 2592 08 2008 Surface Construction Supervisor MATTHEW E. BAUER SS 123 19 2019 Shaft and Slope Superintendent BRUCE A BAUERLE SC 1889 98 1998 Surface Construction Supervisor GEORGE W. BAUGH SC795 85 1985 Surface Construction Supervisor DAVID C. BAUGHMAN SC358 83 1983 Surface Construction Supervisor JAMES D. BAUGHMAN S 2281 88 1988 Surface Mine Foreman JAMES D. BAUGHMAN SC919 90 0 Surface Construction Supervisor CHARLIE M. BAUGUESS SC1399 95 1995 Surface Construction Supervisor BRADLEY C. BAVUSO SC 2599 08 2008 Surface Construction Supervisor BRADY K. BAXTER SC 2517 06 2006 Surface Construction Supervisor WILLIAM D. BAYES SC380 83 1983 Surface Construction Supervisor DAVID C. BAYLES S 4146 06 2006 Surface Mine Foreman BLAINE E. BAYS S 3550 01 2001 Surface Mine Foreman CHADRICK R. BAYS SC 3078 17 2017 Surface Construction Supervisor CHESTER R. BAYS SC310 83 1983 Surface Construction Supervisor DANIEL E. BAYS S 2951 93 1993 Surface Mine Foreman JIM D. BAYS SC 1914 98 1998 Surface Construction Supervisor LINCOLN D. BAYS SC 3067 17 2017 Surface Construction Supervisor MICHEAL D. BAYS SC1836 97 1997 Surface Construction Supervisor WILLIAM D. BAYS S 3712 03 2003 Surface Mine Foreman STEVEN A. BAZZILLA S 2916 93 1993 Surface Mine Foreman KEITH A. BEACHY SC1479 95 1995 Surface Construction Supervisor DAVID F. BEAL S 1859 84 1984 Surface Mine Foreman DAVID F. BEAL SC734 84 1984 Surface Construction Supervisor BERNARD JEROME BEALKO S 1679 82 1982 Surface Mine Foreman RICHARD B. BEALL SC1163 94 1994 Surface Construction Supervisor JOE BRADFORD BEAM S 1463 81 1981 Surface Mine Foreman MARVIN C. BEAM SM 705 79 0 Surface Mine Foreman MARVIN C. BEAM S 705 79 1979 Surface Mine Foreman WARREN F. BEAM S 7124 83 1983 Surface Mine Foreman WARREN F BEAM SC 1882 98 1998 Surface Construction Supervisor JERRY A. BEANE S 67 78 1978 Surface Mine Foreman BRUCE A. BEARD S 4658 09 2009 Surface Mine Foreman BOBBY J. BEASLEY S 4682 09 2009 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CHARLES DAVID BEASLEY S 166182 1982 Surface Mine Foreman THOMAS J. BEASLEY S 3826 04 2004 Surface Mine Foreman GLORIA D. BEATTIE S 2362 88 1988 Surface Mine Foreman LEVI R. BEATTY SS 120 19 2019 Shaft and Slope Superintendent JON S. BEAUREGARD, JR. SS 25 05 2005 Shaft and Slope Superintendent KENNETH D. BEAVER SC280 83 1983 Surface Construction Supervisor KEVIN J. BEAVER S 5565 19 2019 Surface Mine Foreman ARCHIBALD F. BECHEL SC315 83 1983 Surface Construction Supervisor STEVEN W. BECHTOLD SC042 82 1982 Surface Construction Supervisor RANDY L. BECK S 2790 92 1992 Surface Mine Foreman KEVIN S. BECKELHEIMER SC 2639 08 2008 Surface Construction Supervisor BRUCE G. BECKER SC297 83 1983 Surface Construction Supervisor LAWRENCE T. BECKERLE S 1507 81 1981 Surface Mine Foreman ANTHONY C. BECKETT S 4452 08 2008 Surface Mine Foreman MICHAEL E. BECKETT S 3127 95 1995 Surface Mine Foreman MICHAEL E. BECKETT SC1492 96 1996 Surface Construction Supervisor ORVILLE D. BECULHIMER S 4099 06 2006 Surface Mine Foreman PATRICK B. BEDDOW S 3115 95 1995 Surface Mine Foreman PHILLIP P. BEDDOW S 2102 86 1986 Surface Mine Foreman ROBERT W. BEDDOW S 2515 90 1990 Surface Mine Foreman BEN T. BEE S 1042 79 1979 Surface Mine Foreman ROGER LEE BEEGLE S 1768 83 1983 Surface Mine Foreman CHARLES D. BEENER SC197 82 1982 Surface Construction Supervisor WILLIAM L. BEERS SC151 82 1982 Surface Construction Supervisor WILLIE BEGLEY S 308795 1995 Surface Mine Foreman LARRY D. BEGLEY, JR. S 4201 06 2006 Surface Mine Foreman JAMES G. BEIGHLE S 3581 02 2002 Surface Mine Foreman WILLIAM R. BEIRNE S 3873 05 2005 Surface Mine Foreman GARY L. BEITZEL SC1160 94 1994 Surface Construction Supervisor TITUS G. BEITZEL SC 1611 96 1996 Surface Construction Supervisor JOHN J. BELCASTRO S 993 79 1979 Surface Mine Foreman BRANDON BELCHER S 4646 09 2009 Surface Mine Foreman ESTIL J. BELCHER SC1352 95 1995 Surface Construction Supervisor GARY R. BELCHER SC483 83 1983 Surface Construction Supervisor GEORGE L. BELCHER S 3045 95 1995 Surface Mine Foreman GEORGE L. BELCHER SC1173 94 1994 Surface Construction Supervisor JAMES LYNN BELCHER S 1655 82 1982 Surface Mine Foreman JAMES THOMAS BELCHER S 262 79 1979 Surface Mine Foreman LARRY BELCHER S 2365 88 1988 Surface Mine Foreman PHENIS L. BELCHER SC144 82 1982 Surface Construction Supervisor RICHARD K. BELCHER SC 2107 01 2001 Surface Construction Supervisor RONNIE S. BELCHER S 1034 A 2003 Asst. Surface Mine Foreman TEAFORD N. BELCHER S 4656 09 2009 Surface Mine Foreman TEAFORD N. BELCHER SC1353 95 1995 Surface Construction Supervisor BERT BELCHER, JR. S 3382 00 2000 Surface Mine Foreman TEDDY D. BELCHER, JR. S 5026 12 2012 Surface Mine Foreman ANCIL R. BELL S 118979 1945 Surface Mine Foreman BOBBY G. BELL S 4316 07 2007 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CLARENCE E. BELL S 3469 01 2001 Surface Mine Foreman HARRISON L. BELL S 5182 13 2013 Surface Mine Foreman HARRISON L. BELL S 1029 A 2003 Asst. Surface Mine Foreman ROBERT A. BELL, JR. S 1246 80 1980 Surface Mine Foreman TIMOTHY D. BELLAMY S 2165 87 1987 Surface Mine Foreman VINCENT E. BELLETTO S 2673 91 1991 Surface Mine Foreman ELIBERTO BELLO VALADEZ SC 3000 14 2014 Surface Construction Supervisor CHRISTOPHER W. BELLOMY S 3577 02 2002 Surface Mine Foreman ROGER D. BENCH SC 2588 08 2008 Surface Construction Supervisor BRUCE E. BENDER S 3913 05 2005 Surface Mine Foreman JOSEPH G. BENEDICT SC1638 96 1996 Surface Construction Supervisor BENNY BENNETT SC 2503 06 2006 Surface Construction Supervisor BRIAN K. BENNETT SS 126 19 2019 Shaft and Slope Superintendent CHARLES CLINTON BENNETT S 50 78 1978 Surface Mine Foreman ERNIE R. BENNETT S 4243 06 2006 Surface Mine Foreman FREDERICK M. BENNETT SC845 86 1986 Surface Construction Supervisor GRANT H. BENNETT SC004 82 1982 Surface Construction Supervisor IRA R. BENNETT SC003 82 1982 Surface Construction Supervisor JAMES WILLIAM BENNETT SC381 83 1983 Surface Construction Supervisor JERRY L. BENNETT SC 2894 12 2012 Surface Construction Supervisor LARRY D. BENNETT SC1156 94 1994 Surface Construction Supervisor MICHAEL A. BENNETT S 5468 18 2018 Surface Mine Foreman RANDALL K. BENNETT S 184484 1984 Surface Mine Foreman STANLEY L. BENNETT S 115479 1979 Surface Mine Foreman STANLEY R. BENNETT S 805 79 1979 Surface Mine Foreman TONY N. BENNETT S 3963 05 2005 Surface Mine Foreman JAMES R. BENNETT JR. S 7 78 1978 Surface Mine Foreman ARDEN W. BENNETT, JR. SC 2180 02 2002 Surface Construction Supervisor GERALD E. BENNINGTON S 112079 1979 Surface Mine Foreman CLAYTON E. BENSON SC1833 97 1997 Surface Construction Supervisor DALEY R. BENSON S 205685 1985 Surface Mine Foreman RODNEY B. BENSON SS 89 76 0 Shaft & Slope Examiner Foreman CLARENCE BENTLEY SC 875 86 1986 Surface Construction Supervisor THOMAS E. BENTLEY S3243 97 1997 Surface Mine Foreman JASON R. BEOUGHER SC 2263 04 2004 Surface Construction Supervisor RANDOLPH J. BERG S 1888 84 1984 Surface Mine Foreman JOSEPH W. BERNARD SS 146 78 1978 Shaft & Slope Examiner Foreman LOUIS VINCENT BERNATOWCZ S 4469 08 2008 Surface Mine Foreman LOUIS VINCENT BERNATOWICZ S 1077 A 2006 Asst. Surface Mine Foreman LUDWIK B. BERNATOWICZ S 277 79 1979 Surface Mine Foreman DUANE R. BERNDT S 2973 94 1994 Surface Mine Foreman JEFFREY P. BERNEBURG SC1604 96 1996 Surface Construction Supervisor HANK W. BERRY S 2628 91 1991 Surface Mine Foreman LARRY H. BERRY S 4154 06 2006 Surface Mine Foreman GERALD L. BESS S 253 79 1979 Surface Mine Foreman KEVIN A. BESS S 5298 15 2015 Surface Mine Foreman WENDYL RAY BEST S 135380 1980 Surface Mine Foreman DAVID A. BETSCHER S 2758 92 1992 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOHN A. BEVER SC627 83 1983 Surface Construction Supervisor MATTHEW L. BEVER S 4973 11 2011 Surface Mine Foreman LEONARD G. BEVERAGE S 178483 1983 Surface Mine Foreman WILLIAM M. BEVINS S 5383 16 2016 Surface Mine Foreman JOHN BIAGINI SC462 83 1983 Surface Construction Supervisor DONALD J. BIAS SC750 84 1984 Surface Construction Supervisor JEROME C. BIAS SC768 84 1984 Surface Construction Supervisor LOWELL BIAS SC1762 97 1997 Surface Construction Supervisor MARK J. BIAS S 3696 03 2003 Surface Mine Foreman RICKY BIAS S 1569 82 1982 Surface Mine Foreman JAMES R. BIBB SC 2413 06 2006 Surface Construction Supervisor MELVIN M. BIBLE SC 566 83 1983 Surface Construction Supervisor CHESTER BICKEL S 2409 89 1989 Surface Mine Foreman OPHA C. BICKFORD S 2761 94 1994 Surface Mine Foreman OPHA C. BICKFORD S 2761 24 1992 Asst. Surface Mine Foreman MICHAEL D. BICKNELL SS 158 79 1979 Shaft & Slope Examiner Foreman ANDREW W. BIERKAMP S 1870 84 1984 Surface Mine Foreman ALBERT JOSEPH BIGI S 180383 1983 Surface Mine Foreman CHARLES R. BIGLEY S 323 79 1979 Surface Mine Foreman PAUL A. BIGLEY S 3672 03 2003 Surface Mine Foreman CHARLES R. BIGLEY, JR. S 3385 00 2000 Surface Mine Foreman CHARLES E. BIKA, JR. SC704 83 1983 Surface Construction Supervisor JAMES BILBREY SC143 82 1982 Surface Construction Supervisor RICHARD BILEY S 1135 A 2009 Asst. Surface Mine Foreman JACKIE L. BILLINGS S 2821 92 1992 Surface Mine Foreman JAMES M. BILLITER SS 62 06 2006 Shaft and Slope Superintendent JAMES M. BILLITER SS 324 98 1998 Shaft & Slope Examiner Foreman BRUCE W. BILLUPS S 151181 1981 Surface Mine Foreman CHAD W. BILOTTA SC 2513 06 2006 Surface Construction Supervisor ALVIN D. BINDER S 1638 82 1982 Surface Mine Foreman FRANK BIRCHFIELD S 202 78 1978 Surface Mine Foreman HENRY L. BIRCHFIELD S 3701 03 2003 Surface Mine Foreman GORDON W. BIRD SC 2626 08 2008 Surface Construction Supervisor TERRY C. BIRD SC771 84 1984 Surface Construction Supervisor TERRY L. BIRD S 4931 11 2011 Surface Mine Foreman CARL L. BIRLEY SC790 85 1985 Surface Construction Supervisor JERRY W. BISE SC1443 95 1995 Surface Construction Supervisor TIMOTHY A. BISE SC 1913 98 1998 Surface Construction Supervisor VANCE W. BISE SC 1909 98 1998 Surface Construction Supervisor BOBBY G. BISH S 867 79 1979 Surface Mine Foreman MATTHEW T. BISHOP SC 2291 05 2005 Surface Construction Supervisor PERRY R. BISHOP S 5560 19 2019 Surface Mine Foreman VESTAL BISHOP S 749 79 1979 Surface Mine Foreman WILLIS E. BISHOP JR SC 2949 13 2013 Surface Construction Supervisor ELMER BISHOP, JR. SC1065 93 1993 Surface Construction Supervisor JEFFREY D. BITZER S 2180 87 1987 Surface Mine Foreman JOSEPH O. BJORKMAN S 1826 84 1984 Surface Mine Foreman DAVID D. BLACK SC1202 95 1995 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ELWOOD R. BLACK S 714 79 1979 Surface Mine Foreman MICHAEL A. BLACK S 3562 01 2001 Surface Mine Foreman ROBERT C. BLACK SS 372 05 2005 Shaft & Slope Examiner Foreman ROBERT M. BLACK SC1481 95 1995 Surface Construction Supervisor ARCHIE BLACKBURN S 204 78 1978 Surface Mine Foreman BRIAN S. BLACKBURN S 3496 01 2001 Surface Mine Foreman FLOYD BLACKBURN S 2653 91 1991 Surface Mine Foreman GREGORY C. BLACKBURN S 3477 01 2001 Surface Mine Foreman JOHN BLACKBURN S 139 78 1978 Surface Mine Foreman MATTHEW BLACKBURN S 4600 09 2009 Surface Mine Foreman REBECCA K. BLACKBURN S 4285 07 2007 Surface Mine Foreman WALTER BLACKBURN, JR. S 2383 89 1989 Surface Mine Foreman CLARENCE E. BLAIR SC 2378 05 2005 Surface Construction Supervisor GREGORY BLAIR S 3624 02 2002 Surface Mine Foreman GREGORY D. BLAIR SC 1979 99 1999 Surface Construction Supervisor JOE C. BLAIR SC 2869 12 2012 Surface Construction Supervisor KYLE S. BLAIR SC 2664 09 2009 Surface Construction Supervisor PALMER D. BLAIR S 4014 05 2005 Surface Mine Foreman TIMOTHY R. BLAIR SC949 91 1991 Surface Construction Supervisor BERNARD C. BLAKE S 5613 19 2019 Surface Mine Foreman EMMEL LEE BLAKE S 904 79 1979 Surface Mine Foreman OSCAR L. BLAKE SC225 82 1982 Surface Construction Supervisor PAUL D. BLAKE S 3755 04 2004 Surface Mine Foreman PHILIP BLAKE SC 1958 98 1998 Surface Construction Supervisor ROBERT J. BLAKE SC1556 96 1996 Surface Construction Supervisor ROBERT M. BLAKE SC 2835 11 2011 Surface Construction Supervisor SUMMERS J. BLAKE S 1139 79 1979 Surface Mine Foreman ALWYN A. BLANKENSHIP S 3363 00 2000 Surface Mine Foreman AUDIE E. BLANKENSHIP S 4894 11 2011 Surface Mine Foreman CEBERN M. BLANKENSHIP S 3510 01 2001 Surface Mine Foreman CLYDE L. BLANKENSHIP S 528 79 1979 Surface Mine Foreman DARRELL B. BLANKENSHIP S 2453 89 1989 Surface Mine Foreman DARRELL E. BLANKENSHIP S 4685 09 2009 Surface Mine Foreman DAVID E. BLANKENSHIP S 3876 05 2005 Surface Mine Foreman GARY E. BLANKENSHIP S 3402 00 2000 Surface Mine Foreman GEORGE M. BLANKENSHIP SC438 83 1983 Surface Construction Supervisor GREGORY S. BLANKENSHIP S 3285 98 1998 Surface Mine Foreman HAROLD J. BLANKENSHIP SC1379 95 1995 Surface Construction Supervisor KIM R. BLANKENSHIP S 2184 87 1987 Surface Mine Foreman KIRBY D. BLANKENSHIP S 1333 80 1990 Surface Mine Foreman LARRY R. BLANKENSHIP SC 2203 03 2003 Surface Construction Supervisor LUCAS BLANKENSHIP S 4330 07 2007 Surface Mine Foreman MATTHEW BLANKENSHIP S 4882 11 2011 Surface Mine Foreman MATTHEW BLANKENSHIP S 1160 A 2011 Asst. Surface Mine Foreman MICHAEL R. BLANKENSHIP S 4838 10 2010 Surface Mine Foreman MITCHELL BLANKENSHIP S 4969 11 2011 Surface Mine Foreman PAUL D. BLANKENSHIP S 3111 95 1995 Surface Mine Foreman ROGER BLANKENSHIP S 2873 93 1993 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE STEPHEN E. BLANKENSHIP S 5036 12 2012 Surface Mine Foreman THOMAS M. BLANKENSHIP SC 1928 98 1998 Surface Construction Supervisor HOMER BLANKENSHIP JR S 5118 12 2012 Surface Mine Foreman ROBERT N. BLANKENSHIP, JR. S 82 78 1978 Surface Mine Foreman DANNIE B. BLANTON S 3193 97 1997 Surface Mine Foreman BRIAN K. BLEDSOE S 4270 07 2007 Surface Mine Foreman DANIEL J. BLEDSOE S 2831 92 1992 Surface Mine Foreman DANIEL J. BLEDSOE SC1225 95 1995 Surface Construction Supervisor DAVID G. BLEIGH S 3339 99 1999 Surface Mine Foreman ROGER D. BLEIGH S 3630 02 2002 Surface Mine Foreman ALLIE W. BLEVINS SC 2396 05 2005 Surface Construction Supervisor BLAKE S. BLEVINS SC 543 83 1983 Surface Construction Supervisor BOBBY BLEVINS S 1044 A 2004 Asst. Surface Mine Foreman BOBBY E. BLEVINS S 3898 05 2005 Surface Mine Foreman CARL L. BLEVINS S 3181 96 1996 Surface Mine Foreman CARL DEMAS BLEVINS S 1848 84 1984 Surface Mine Foreman DAVID W. BLEVINS SC 2115 01 2001 Surface Construction Supervisor JAMES R. BLEVINS SC213 82 1982 Surface Construction Supervisor PATRICK D. BLEVINS S 5361 16 2016 Surface Mine Foreman RALPH E. BLEVINS S 3038 94 1994 Surface Mine Foreman RALPH E. BLEVINS SC898 89 0 Surface Construction Supervisor SAMUEL C. BLEVINS SC 2116 01 2001 Surface Construction Supervisor TIMOTHY R. BLICK S 4024 05 2005 Surface Mine Foreman CECIL LUTHER BLOFELD, JR. S 800 79 1979 Surface Mine Foreman BILLIE EUGENE BLOSSER S 1106 79 1979 Surface Mine Foreman MICHAEL E. BLOUT S 1821 84 1984 Surface Mine Foreman LARRY A. BOARD S 2640 91 1991 Surface Mine Foreman MARK A. BOARD S 2903 93 1993 Surface Mine Foreman THOMAS L. BOARDWIND SC1040 92 1992 Surface Construction Supervisor JAMES W. BOBLETT S 1496 81 1981 Surface Mine Foreman JOHN N. BOBO 1910 84 1984 Surface Mine Foreman JAMES BODKIN S 1133 A 2009 Asst. Surface Mine Foreman JAMES S. BODKIN S 4672 09 2009 Surface Mine Foreman TIMOTHY G. BOGARD SC1714 97 1997 Surface Construction Supervisor RICHARD E. BOGGESS S 3302 98 1998 Surface Mine Foreman RICHARD E. BOGGESS S 3081 24 1995 Asst. Surface Mine Foreman RONALD A. BOGGESS SC486 83 1983 Surface Construction Supervisor BOBBY D. BOGGS S 2438 89 1989 Surface Mine Foreman CHARLES W. BOGGS S 1372 80 1980 Surface Mine Foreman DAVID E. BOGGS S 988 79 1979 Surface Mine Foreman DAVID E. BOGGS SC 2586 08 2008 Surface Construction Supervisor EDWARD C. BOGGS S 5156 13 2013 Surface Mine Foreman GARY L. BOGGS S 3465 01 2001 Surface Mine Foreman JACK D. BOGGS S 4351 07 2007 Surface Mine Foreman MARTIN B. BOGGS SC729 84 1984 Surface Construction Supervisor MICHAEL D. BOGGS S 3409 00 2000 Surface Mine Foreman PAUL E. BOGGS S 2736 91 1991 Surface Mine Foreman RICHARD H. BOGGS SC1630 96 1996 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CHARLES A. BOGGS, III S 732 79 1979 Surface Mine Foreman RANDY L. BOGGS, SR. S 3798 04 2004 Surface Mine Foreman ROBERT R. BOHN SC 2013 99 1999 Surface Construction Supervisor DAVE BOHURIAH SC1068 93 0 Surface Construction Supervisor DANNY L. BOLEN SC1528 96 1996 Surface Construction Supervisor JOHN S. BOLEN S 5332 15 2015 Surface Mine Foreman KENNETH W. BOLEN SC 2510 06 2006 Surface Construction Supervisor LACY EARL BOLEN SC214 82 1982 Surface Construction Supervisor LACY EARL BOLEN S 509 79 1979 Surface Mine Foreman ROBERT T. BOLEN S 567 79 1979 Surface Mine Foreman LACY E. BOLEN, JR. S 5024 12 2012 Surface Mine Foreman AUBREY F. BOLES SC384 83 1983 Surface Construction Supervisor MARVIN B. BOLES S 2118 86 1986 Surface Mine Foreman BRENT BOLEY SC 2842 11 2011 Surface Construction Supervisor BRANDON S. BOLINGER SC 3063 17 2017 Surface Construction Supervisor RONALD D. BOLINGER S 1694 82 1982 Surface Mine Foreman MATTHEW S. BOLLING S 5571 19 2019 Surface Mine Foreman TROYU L. BOLLING S 1437 81 1981 Surface Mine Foreman CHARLES R. BOLLINGER S 789 79 1979 Surface Mine Foreman JOEY D. BOLLINGER S 5527 18 2018 Surface Mine Foreman RONALD T. BOLLINGER SS 26891 1991 Shaft & Slope Examiner Foreman ANTHONY BOLOGNA S 932 79 1979 Surface Mine Foreman VINCENT J. BOLOGNA S 919 79 1979 Surface Mine Foreman JODY B. BOLON S 4913 11 2011 Surface Mine Foreman EDWARD W. BOLT SC1428 95 1995 Surface Construction Supervisor CECIL J. BOLYARD SC 3081 18 2018 Surface Construction Supervisor DENNIS BOLYARD SC 2524 07 2007 Surface Construction Supervisor WILLIAM JAY BOLYARD S 188 78 1978 Surface Mine Foreman LARRY BERNARD BOND S 1234 80 1980 Surface Mine Foreman TERRY R. BOND RBS 3 19 2019 Raised Bore/Blind Drilling Super. BRYAN K. BONDS SC 2569 07 2007 Surface Construction Supervisor JEFF BONNER S 4927 11 2011 Surface Mine Foreman JEFFREY A. BONNER SC 2887 12 2012 Surface Construction Supervisor KENNETH E. BONNER S 1911 84 1984 Surface Mine Foreman GARY GRANT BONNETT S 1186 79 1979 Surface Mine Foreman JOHN S. BOOK S 1103 79 1979 Surface Mine Foreman TRAVIS L. BOORD SC 3104 18 2018 Surface Construction Supervisor MICHAEL D. BOOTH S 4648 09 2009 Surface Mine Foreman MICHAEL L. BOOTH S 3565 01 2001 Surface Mine Foreman ROGER LEE BOOTH S 1779 83 1983 Surface Mine Foreman NORMAN E. BOOTHE, JR. S 3765 04 2004 Surface Mine Foreman DAVID E. BORDEN SC034 82 1982 Surface Construction Supervisor MICHAEL H. BORDENICK SC1705 97 1997 Surface Construction Supervisor JOHN L. BORDERS S 2467 90 1990 Surface Mine Foreman WALLACE BORDERS S 2528 90 1990 Surface Mine Foreman WESLEY A. BORDERS S 5253 14 2014 Surface Mine Foreman BILLY J. BORDWINE SC 1828 97 1997 Surface Construction Supervisor PATRICK D. BORREGGINE SC 2462 06 2006 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MARK W. BORTELL SC 2487 06 2006 Surface Construction Supervisor ROBERT WILLIAM BOSERMAN S 1635 82 1982 Surface Mine Foreman CARMEL E. BOSLEY S 1889 84 1984 Surface Mine Foreman DAVID L. BOSLEY S 1855 84 1984 Surface Mine Foreman WILLIAM T. UNDERWOOD SC 697 83 1983 Surface Construction Supervisor DENNIS B. BOSLEY SC 2123 01 2001 Surface Construction Supervisor HERBERT W. BOSLEY S 654 79 1979 Surface Mine Foreman TIMOTHY W. BOSSART SC 2381 05 2005 Surface Construction Supervisor JERRY L. BOSSESMAN S 5311 15 2015 Surface Mine Foreman CHARLES L. BOST S 358 79 1979 Surface Mine Foreman CHAD A. BOSTIC S 3721 03 2003 Surface Mine Foreman DENNEY H. BOSTIC S 1334 80 1980 Surface Mine Foreman HERMAN BOSTIC S 4152 06 2006 Surface Mine Foreman JODY L. BOSTIC S 4135 06 2006 Surface Mine Foreman JOHN D. BOSTIC S 1856 84 1984 Surface Mine Foreman JOSHUA W. BOSTIC SC 2778 11 2011 Surface Construction Supervisor MARTY K. BOSTIC S 5148 13 2013 Surface Mine Foreman WILLIAM J. BOSTIC S 1985 85 1985 Surface Mine Foreman HARRY FRANK BOSTIC, JR. S 1996 85 1985 Surface Mine Foreman JOSEPH M. BOSWELL S 20 78 1978 Asst. Surface Mine Foreman GREGORY A. BOTKINS SC 2210 03 2003 Surface Construction Supervisor CYRIAS BOUCHARD SS 14278 0 Shaft & Slope Examiner Foreman KELLY J. BOUDREAUX SS 10076 0 Shaft & Slope Examiner Foreman MARCEL BOULET SC1060 93 1993 Surface Construction Supervisor REJEAN R. BOULET SC1061 93 1993 Surface Construction Supervisor DAVID L. BOVE SC 1988 99 1999 Surface Construction Supervisor CLYDE JR. BOWE S 186584 1984 Surface Mine Foreman WETZEL A. BOWE S 1367 80 1980 Surface Mine Foreman CLYDE JR. BOWE SC 554 83 1983 Surface Construction Supervisor CHAD M. BOWEN SC 2677 09 2009 Surface Construction Supervisor GARY M. BOWEN S 134 78 1978 Surface Mine Foreman TIMOTHY O. BOWEN S 5172 13 2013 Surface Mine Foreman RUBEN BOWEN, JR. S 3915 05 2005 Surface Mine Foreman THOMAS R. BOWER II S 3788 04 2004 Surface Mine Foreman FOREST DAVID BOWERS S 2604 91 1991 Surface Mine Foreman JOHN H. BOWERS S 193 78 1978 Surface Mine Foreman SAMUEL R. BOWERS S 1663 82 1982 Surface Mine Foreman WILLIAM R. BOWES S 899 79 1979 Surface Mine Foreman JAMES B. BOWLING S 4493 08 2008 Surface Mine Foreman MICHAEL G. BOWLING S 2573 90 1990 Surface Mine Foreman MURELL E. BOWELLING SC348 83 1983 Surface Construction Supervisor TIMOTHY W. BOWLING SC 2428 06 2006 Surface Construction Supervisor JACKIE W. BOWMAN SC 1953 98 1998 Surface Construction Supervisor RICHIE A. BOWMAN S 4016 05 2005 Surface Mine Foreman WILLIAM H. BOWMAN SC655 83 1983 Surface Construction Supervisor WILLIAM B. BOWMAN JR. SC1300 95 1995 Surface Construction Supervisor KEITH E. BOWYER S 4202 06 2006 Surface Mine Foreman ALLEN R. BOYCE SC 2421 06 2006 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE BRIAN K. BOYCE S 4432 08 2008 Surface Mine Foreman RUSSELL C. BOYCE SC1811 97 1997 Surface Construction Supervisor KENNA E. BOYCE JR. S 2089 86 1986 Surface Mine Foreman DOUGLAS L. BOYD S 3481 01 2001 Surface Mine Foreman GARY D. BOYD SC760 84 1984 Surface Construction Supervisor HOWARD BOYD SC1726 97 1997 Surface Construction Supervisor JENNINGS RAY BOYD S 1710 82 1982 Surface Mine Foreman JOHN L. BOYD S 3929 05 2005 Surface Mine Foreman ROBERT A. BOYD SS 1671 1971 Shaft & Slope Examiner Foreman JOHN L. BOYERS SC 519 83 1983 Surface Construction Supervisor ROBERT J. BOYES S 123 78 1978 Surface Mine Foreman RICHARD W. BOYLEN SS 12377 0 Shaft & Slope Examiner Foreman HASKEL L. BOYTEK S 2203 87 1987 Surface Mine Foreman MONTY E. BOYTEK SC1592 96 1996 Surface Construction Supervisor ANTHONY M. BRADFORD SC 2540 07 2007 Surface Construction Supervisor KEVIN D. BRADFORD SC 2541 07 2007 Surface Construction Supervisor ROBERT J. BRADFORD S 3130 95 1995 Surface Mine Foreman ROBERT J. BRADFORD SC1318 95 1995 Surface Construction Supervisor ROBERT O. BRADFORD S 2830 92 1992 Surface Mine Foreman ROBERT O. BRADFORD SC1227 95 1995 Surface Construction Supervisor ROY E. BRADFORD S 2829 92 1992 Surface Mine Foreman ROY E. BRADFORD SC1228 95 1995 Surface Construction Supervisor TODD M. BRADFORD S 2834 92 1992 Surface Mine Foreman TODD M. BRADFORD SC1226 95 0 Surface Construction Supervisor TODD M. BRADFORD SC 122695 1995 Surface Construction Supervisor TROY M. BRADFORD S 2633 91 1991 Surface Mine Foreman AUBREY K. BRADLEY SC226 82 1982 Surface Construction Supervisor WILLIAM M. BRADLEY SC969 92 1992 Surface Construction Supervisor NORMAN H. BRADLEY JR. SC 1962 98 1998 Surface Construction Supervisor LESLIE G. BRADSHAW SC 2209 03 2003 Surface Construction Supervisor CURTIS R. BRAGG S 5014 11 2011 Surface Mine Foreman CURTIS R. BRAGG S 1144 A 2010 Asst. Surface Mine Foreman DANFORD E. BRAGG S 4504 08 2008 Surface Mine Foreman DAVID L. BRAGG S 5058 12 2012 Surface Mine Foreman DUKE A. BRAGG S 5271 14 2014 Surface Mine Foreman ERIC BRAGG S 5438 17 2017 Surface Mine Foreman HARRY W. BRAGG S 2227 87 1987 Surface Mine Foreman KIRBY B. BRAGG S 2239 87 1987 Surface Mine Foreman KIRBY B. BRAGG SC1489 96 1996 Surface Construction Supervisor RALPH J. BRAGG S 1476 81 1981 Surface Mine Foreman RUSSELL G. BRAGG SC 2137 01 2001 Surface Construction Supervisor WILLIAM G. BRAGG S 1159 A 2011 Asst. Surface Mine Foreman WILLIAM R. BRAGG S 4212 06 2006 Surface Mine Foreman AUTIS BRAGG, JR. S 159 78 1978 Surface Mine Foreman WILLIAM P. BRAILER S 3075 95 1995 Surface Mine Foreman MICHAEL E. BRAMER S 849 79 1979 Surface Mine Foreman RICHARD M. BRAMER S 392 79 1979 Surface Mine Foreman WAYLON G. BRAMMER S 5462 18 2018 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ROGER L. BRANCH S 2968 94 1994 Surface Mine Foreman JOSEPH A. BRAND SC 2570 07 2007 Surface Construction Supervisor CRAIG M. BRANDON S 5015 11 2011 Surface Mine Foreman LARRY J. BRANDON S 3284 98 1998 Surface Mine Foreman DELBERT L. BRANHAM SC 2652 08 2008 Surface Construction Supervisor DEXTER A. BRANHAM S 1750 83 1983 Surface Mine Foreman DEXTER A. BRANHAM SC1438 95 1995 Surface Construction Supervisor DON P. BRANHAM S 5342 16 2016 Surface Mine Foreman ERNEST BRANHAM S 5345 16 2016 Surface Mine Foreman JEFFREY T. BRANHAM S 2879 93 1993 Surface Mine Foreman JIMMY D. BRANHAM S 5090 12 2012 Surface Mine Foreman JOEY K. BRANHAM S 5349 16 2016 Surface Mine Foreman LANCE A. BRANHAM S 4871 10 2010 Surface Mine Foreman LLOYD K. BRANHAM S 5405 17 2017 Surface Mine Foreman PAUL D. BRANHAM S 3888 05 2005 Surface Mine Foreman ELWIN BRANNAKA S 1267 80 1980 Surface Mine Foreman ROBERT F. BRANSON SC894 89 0 Surface Construction Supervisor ROBERT F. BRANSON, II SC893 89 0 Surface Construction Supervisor JAMES F. BRANTLEY SC076 82 1982 Surface Construction Supervisor WILLIAM A. BRANTLEY SC032 82 1982 Surface Construction Supervisor JAMES F. BRANTLEY,JR. SC033 82 1982 Surface Construction Supervisor NICK A. BRASH SC419 83 1983 Surface Construction Supervisor EDDY R. BRASHEARS S 4482 08 2008 Surface Mine Foreman DAVID A. BRASSFIELD S 5448 17 2017 Surface Mine Foreman DAVID BRAY S 3432 00 2000 Surface Mine Foreman GARY F. BRAY SC 2419 06 2006 Surface Construction Supervisor ARLEN D. BREEDEN SC1851 97 1997 Surface Construction Supervisor DAVID R. BREEDING S 5285 15 2015 Surface Mine Foreman MELISA BREEDLOVE S 4034 06 2006 Surface Mine Foreman MELISA BREEDLOVE S 1053 A 2004 Asst. Surface Mine Foreman STEPHEN BREESE SS 103 12 2012 Shaft and Slope Superintendent EDWARD W. BREIT S 759 79 1979 Surface Mine Foreman TIMOTHY M. BRENDEL SS 28393 1993 Shaft & Slope Examiner Foreman EARL BRENDLE SS 50 06 2006 Shaft and Slope Superintendent EARL BRENDLE SS 87 76 1976 Shaft & Slope Examiner Foreman EARL BRENDLE SC635 83 1983 Surface Construction Supervisor ROBERT L. BRENDLINGER SC1183 94 1994 Surface Construction Supervisor PERRY R. BRENNEMAN SC 3166 20 2020 Surface Construction Supervisor WILLIAM L. BRENNEMAN SC1594 96 1996 Surface Construction Supervisor JAMES W. BRENSTER S 409 79 1979 Surface Mine Foreman DEWEY D. BRENWALD SC813 86 1986 Surface Construction Supervisor MATTHEW D. BRETON SC 2951 13 2013 Surface Construction Supervisor RICHARD G. BRETON SC 2146 01 2001 Surface Construction Supervisor ARLIE R. BREWER S 4587 09 2009 Surface Mine Foreman ARLIE R. BREWER S 1127 A 2008 Asst. Surface Mine Foreman CHARLES E. BREWER S 3631 02 2002 Surface Mine Foreman CHARLES W. BREWER S 1794 83 1983 Surface Mine Foreman DAVID C. BREWER SC1384 95 1995 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DAVID E. BREWER SC698 83 1983 Surface Construction Supervisor JEREMY R. BREWER S 4562 08 2008 Surface Mine Foreman KEVIN L. BREWER SC1125 94 1994 Surface Construction Supervisor LESLIE W. BREWER S 4812 10 2010 Surface Mine Foreman RICHARD L. BREWER S 5447 17 2017 Surface Mine Foreman VAN L. BREWER SC1322 95 1995 Surface Construction Supervisor WALTER BREWER S 4505 08 2008 Surface Mine Foreman `BILLY S. BREWER S 5043 12 2012 Surface Mine Foreman DAVID J. BREWSTER S 5028 12 2012 Surface Mine Foreman DAVID W. BREWSTER S 2763 92 1992 Surface Mine Foreman JACK M. BREWSTER S 4811 10 2010 Surface Mine Foreman KERRI LEE BREWSTER S 2136 86 1986 Surface Mine Foreman WILLIAM L. BREWSTER SC859 86 1986 Surface Construction Supervisor JAMES W. BREWSTER, JR. S 2785 92 1992 Surface Mine Foreman MICHAEL K. BREYER S 2219 87 1987 Surface Mine Foreman DONALD S. BRICKELL S 5291 15 2015 Surface Mine Foreman BOBBY R. BRIDGES II S 3851 04 2004 Surface Mine Foreman JAMES W. BRIGGS S 5035 12 2012 Surface Mine Foreman RODNEY BRIGGS SS 357 04 2004 Shaft & Slope Examiner Foreman TERRY E. BRIGGS S 4289 07 2007 Surface Mine Foreman CHARLES R. BRILEY SS 63 74 1974 Shaft & Slope Examiner Foreman RICHARD K. BRINDLE SC 2454 06 2006 Surface Construction Supervisor THEODORE J. BRISKY S 1886 84 1984 Surface Mine Foreman GUS BRITT S 311 79 1979 Surface Mine Foreman RONNIE E. BRITTON SC 2208 03 2003 Surface Construction Supervisor STEVEN B. BRITVEC SC1576 96 1996 Surface Construction Supervisor THOMAS N. BROACH III SC 2132 01 2001 Surface Construction Supervisor THOMAS BROACH JR. SC 2168 02 2002 Surface Construction Supervisor HARRY R. BROADWATER SC1602 96 1996 Surface Construction Supervisor LARRY G. BROADWATER JR. SC 2193 02 2002 Surface Construction Supervisor BYRON D. BROCK S 3047 95 1995 Surface Mine Foreman DANIEL E. BROCK SC142 82 1982 Surface Construction Supervisor JACK BROCK S 4456 08 2008 Surface Mine Foreman JACK L. BROCK S 3820 04 2004 Surface Mine Foreman MARK E. BROCK S 4559 08 2008 Surface Mine Foreman MATTHEW T. BROCK S 3886 05 2005 Surface Mine Foreman TIM E. BROCK SC1178 94 1994 Surface Construction Supervisor CECIL H. BROCK, JR. S 4865 10 2010 Surface Mine Foreman TODD A. BROCKLEMAN SC 2372 05 2005 Surface Construction Supervisor HOWARD A. BRODE S 1871 84 1984 Surface Mine Foreman RICHARD L. BROGAN S 4474 08 2008 Surface Mine Foreman ROCKARD H. BROGAN SC1632 96 1996 Surface Construction Supervisor WILLIAM B. BROGAN SS 94 76 0 Shaft & Slope Examiner Foreman CLARENCE L. BROOKS S 1510 81 1981 Surface Mine Foreman DANIEL H. BROOKS SC1095 94 1994 Surface Construction Supervisor JUSTIN P. BROOKS S 5501 18 2018 Surface Mine Foreman KENTON R. BROOKS SC 2420 06 2006 Surface Construction Supervisor MARVIN E. BROOKS S 77 78 1978 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MATTHEW J. BROOKS S 4449 08 2008 Surface Mine Foreman ROBERT BROOKS S 2578 90 1990 Surface Mine Foreman RONALD R. BROOKS S 1957 84 1984 Surface Mine Foreman RYAN R. BROOKS S 5229 14 2014 Surface Mine Foreman WILLIAM D. BROOKS S 4843 10 2010 Surface Mine Foreman JAMES L. BROSIUS S 110179 1979 Surface Mine Foreman JAMES H. BROWING S 1674 82 1982 Surface Mine Foreman AARON D. BROWN S 4384 07 2007 Surface Mine Foreman ADAM L. BROWN S 4281 07 2007 Surface Mine Foreman BRIAN L. BROWN SC 2796 11 2011 Surface Construction Supervisor BRUCE WAYNE BROWN S 1834 84 1984 Surface Mine Foreman BRYAN T. BROWN SC1540 96 1996 Surface Construction Supervisor CARLOS K. BROWN SC 2687 09 2009 Surface Construction Supervisor CHARLES A. BROWN S 4521 08 2008 Surface Mine Foreman CHRISTOPHER S. BROWN S 3429 00 2000 Surface Mine Foreman DAVID A. BROWN S 1786 83 1983 Surface Mine Foreman DAVID R. BROWN S 3965 05 2005 Surface Mine Foreman DELMAS C. BROWN S 1743 83 1983 Surface Mine Foreman DENNIS D. BROWN S 3779 04 2004 Surface Mine Foreman EARL P. BROWN SS 11277 0 Shaft & Slope Examiner Foreman EDWARD E. BROWN S 274 79 1979 Surface Mine Foreman FRANK E. BROWN S 4369 07 2007 Surface Mine Foreman FRANK J. BROWN S 185 78 1978 Surface Mine Foreman GARY M. BROWN S 1123 A 2008 Asst. Surface Mine Foreman GURNIE K. BROWN SC737 84 1984 Surface Construction Supervisor HARRY CECIL BROWN SC714 84 1984 Surface Construction Supervisor HARRY CECIL BROWN S 108079 1979 Surface Mine Foreman JACK EDWARD BROWN S 2297 88 1988 Surface Mine Foreman JAMES E. BROWN S 308095 1995 Surface Mine Foreman JAMES M. BROWN SC1838 97 1997 Surface Construction Supervisor JAMES R. BROWN S 4987 11 2011 Surface Mine Foreman KENNETH BROWN SC077 82 1982 Surface Construction Supervisor LARRY D. BROWN SS 61 06 2006 Shaft and Slope Superintendent LARRY D. BROWN SS 205 81 1981 Shaft & Slope Examiner Foreman LARRY E. BROWN S 3143 96 1996 Surface Mine Foreman LOWELL MAX BROWN S 581 79 1979 Surface Mine Foreman MICHAEL R. BROWN S 4066 06 2006 Surface Mine Foreman MINNIS E. BROWN SC1451 95 1995 Surface Construction Supervisor PAUL A. BROWN S 4599 09 2009 Surface Mine Foreman RANDY BROWN S 4000 05 2005 Surface Mine Foreman RICHARD D. BROWN S 5046 12 2012 Surface Mine Foreman RICHARD G. BROWN S 1207 79 1979 Surface Mine Foreman ROBERT S. BROWN S 4614 09 2009 Surface Mine Foreman ROBERT S. BROWN SC 3159 20 2020 Surface Construction Supervisor SAMMY K. BROWN SC406 83 1983 Surface Construction Supervisor THOMAS S. BROWN SS 71 07 2007 Shaft and Slope Superintendent TIMOTHY S. BROWN SC1049 92 0 Surface Construction Supervisor WARREN L. BROWN S 2844 92 1992 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILLARD D. BROWN S 2985 94 1994 Surface Mine Foreman WILLIAM D. BROWN SS 39 05 2005 Shaft and Slope Superintendent WILLIAM E. BROWN S 4069 06 2006 Surface Mine Foreman RAY C. BROWN, JR, SS 157 79 1979 Shaft & Slope Examiner Foreman JOHN S. BROWN, JR. S 3821 04 2004 Surface Mine Foreman ALBERT BROWNING S 1887 90 1990 Surface Mine Foreman ALBERT BROWNING S 1887 30 1984 Asst. Surface Mine Foreman BENJAMIN C. BROWNING S 4164 06 2006 Surface Mine Foreman CEBERT G. BROWNING S 1993 85 1985 Surface Mine Foreman CHARLES A. BROWNING SC720 84 1984 Surface Construction Supervisor DEWEY C. BROWNING S 3454 01 2001 Surface Mine Foreman DONALD R. BROWNING S 1619 82 1982 Surface Mine Foreman FREDERICK F. BROWNING S 2513 90 1990 Surface Mine Foreman FREELIN BROWNING S 3396 00 2000 Surface Mine Foreman GREGORY S. BROWNING S 1347 80 1980 Surface Mine Foreman HESTEL BROWNING S 213 78 1978 Surface Mine Foreman JAMES R. BROWNING S 5068 12 2012 Surface Mine Foreman JORDAN M. BROWNING S 4691 09 2009 Surface Mine Foreman LARRY G. BROWNING SC1241 95 1995 Surface Construction Supervisor LEON F. BROWNING S 747 79 1979 Surface Mine Foreman NAOMI R. BROWNING S 2441 89 1989 Surface Mine Foreman OAUL D. BROWNING S 1150 79 1979 Surface Mine Foreman OKEY E. BROWNING SC719 84 1984 Surface Construction Supervisor PATRICK L. BROWNING S 3189 96 1996 Surface Mine Foreman RICKY BROWNING S 4141 06 2006 Surface Mine Foreman RICKY L. BROWNING S 5523 18 2018 Surface Mine Foreman RILEY AARON BROWNING S 368 79 1979 Surface Mine Foreman TONY D. BROWNING S 3922 05 2005 Surface Mine Foreman TONY D. BROWNING SC 2256 04 2004 Surface Construction Supervisor WILLIAM N. BROWNING SC 545 83 1983 Surface Construction Supervisor WOODROW L. BROWNING SC 2979 14 2014 Surface Construction Supervisor TRACEY BROWNING JR. S 138 78 1978 Surface Mine Foreman JOHN K. BROWNING SR. S 5407 17 2017 Surface Mine Foreman ALBERT D. BROWNING, II S 3034 94 1994 Surface Mine Foreman RUSSELL D. BROYLES, JR. S 3742 03 2003 Surface Mine Foreman RUSSELL D. BROYLES, JR. S 1014 A 2001 Asst. Surface Mine Foreman PATRICK A. BRUFFY S 1399 81 1981 Surface Mine Foreman RYAN H. BRUFFY S 4395 08 2008 Surface Mine Foreman STEPHEN M. BRUFFY S 2373 89 1989 Surface Mine Foreman FRANK D. BRUMFIELD SS 46 73 1973 Shaft & Slope Examiner Foreman JEFFREY A. BRUMFIELD SC1633 96 1996 Surface Construction Supervisor TERRY L. BRUMFIELD SC 2669 09 2009 Surface Construction Supervisor TERRY R. BRUMFIELD SC 2668 09 2009 Surface Construction Supervisor RICHARD F. BRUMLEY SS 18980 1980 Shaft & Slope Examiner Foreman RICHARD F. BRUMLEY SC324 83 1983 Surface Construction Supervisor ENOS J. BRUMMAGE SS 71 75 1975 Shaft & Slope Examiner Foreman ENOS J. BRUMMAGE SC312 83 1983 Surface Construction Supervisor HARLEY R. BRUMMETT S 2220 87 1987 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE TIMOTHY M. BRUNER SC 1900 98 1998 Surface Construction Supervisor SHAYNE A. BRUNSON SC 2213 03 2003 Surface Construction Supervisor JACKIE L. BRUNTY S3224 97 1997 Surface Mine Foreman JACKIE RAY BRYAN S 111279 1979 Surface Mine Foreman RICHARD L. BRYAN S 832 79 1979 Surface Mine Foreman CURTIS J. BRYANT S 3018 94 1994 Surface Mine Foreman DARVINE BRYANT S 5204 13 2013 Surface Mine Foreman HERMAN L. BRYANT S 4523 08 2008 Surface Mine Foreman JACK L. BRYANT SC1258 95 1995 Surface Construction Supervisor JAMES EDWARD BRYANT S 419 79 1979 Surface Mine Foreman JAMES GREGORY BRYANT S 1628 82 1982 Surface Mine Foreman JIMMY BRYANT SC 2399 05 2005 Surface Construction Supervisor JOSHUA A. BRYANT SC 2702 09 2009 Surface Construction Supervisor KENNETH BRYANT SC879 87 1987 Surface Construction Supervisor LAWRENCE H. BRYANT SC 2799 11 2011 Surface Construction Supervisor REEDIE ARCHILEC BRYANT S 321 79 1979 Surface Mine Foreman RODNEY BRYANT S 4418 08 2008 Surface Mine Foreman SHANE L. BRYANT S 5490 18 2018 Surface Mine Foreman SHANE L. BRYANT S 3106 30 1995 Asst. Surface Mine Foreman TAYLOR L. BRYANT SC 2398 05 2005 Surface Construction Supervisor WILLIAM BRYANT S 478 79 1979 Surface Mine Foreman GARY W. BRYANT,JR. S 5315 15 2015 Surface Mine Foreman THOMAS B. BRYNER SC 3080 18 2018 Surface Construction Supervisor FRED B. BUCHANAN S 2320 88 1988 Surface Mine Foreman JAMES R. BUCHANAN S 2104 86 1986 Surface Mine Foreman JAMES R. BUCHANAN SC437 83 1983 Surface Construction Supervisor DENNIS E. BUCK S 3613 02 2002 Surface Mine Foreman FRANKLIN D. BUCK S 352 79 1979 Surface Mine Foreman LOUIS J. BUCK SC267 82 1982 Surface Construction Supervisor JOE W. BUCKBERRY, JR. S 1134 79 1979 Surface Mine Foreman DENNIS E. BUCKEL S 1894 84 1984 Surface Mine Foreman DOUGLAS L. BUCKLES S 2170 87 1987 Surface Mine Foreman DAVID RAY BUCKLEW S 1696 82 1982 Surface Mine Foreman JAMES W. BUCKLEW S 1944 84 1984 Surface Mine Foreman JAMES E. BUCKNER S 3860 04 2004 Surface Mine Foreman JIMMIE G. BUCY S 1420 81 1981 Surface Mine Foreman WILLIAM J. BUDNER SC 2797 11 2011 Surface Construction Supervisor CYRIL R. BUEHLER S 3136 96 1996 Surface Mine Foreman ARMANDO M. BUENROSTRO SC 2551 07 2007 Surface Construction Supervisor JAMES E. BUFFINGTON SC 2672 09 2009 Surface Construction Supervisor BRIAN T. BULATKO SC 2948 13 2013 Surface Construction Supervisor GEORGE E. BULLIOR SC929 91 0 Surface Construction Supervisor GEORGE B. BUNCH SC1229 95 1995 Surface Construction Supervisor JOHNNY M. BUNCH SC 2771 11 2011 Surface Construction Supervisor DAVID D. BUNDY S 2787 92 1992 Surface Mine Foreman STEPHEN F. BUNDY S 4106 06 2006 Surface Mine Foreman JOHN H. BURCH SC465 83 1983 Surface Construction Supervisor JIMMY K. BURCHETT S 3751 04 2004 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE PAUL M. BURCHETT S 2946 93 1993 Surface Mine Foreman WILLIAM A. BURCHETT S 4236 06 2006 Surface Mine Foreman WILLIAM H. BURCHETT S 3795 04 2004 Surface Mine Foreman DAVID BURDEN SC 2745 10 2010 Surface Construction Supervisor WILLIAM A. BURDETTE S 4900 11 2011 Surface Mine Foreman WILLIAM A. BURDETTE S 1110 A 2008 Asst. Surface Mine Foreman CLIFFORD P. BURGAN SC619 83 1983 Surface Construction Supervisor DWAIN L. BURGER SC1283 95 1995 Surface Construction Supervisor BERNARD M. BURGESS S 617 79 1979 Surface Mine Foreman BRUCE C. BURGESS S 527 79 1979 Surface Mine Foreman DAN G. BURGESS S 1383 80 1980 Surface Mine Foreman DONALD R. BURGESS S 2627 91 1991 Surface Mine Foreman James C. Burgess S 2887 93 1993 Surface Mine Foreman JAMES M. BURGESS S 3620 02 2002 Surface Mine Foreman JEREMY BURGESS S 4327 07 2007 Surface Mine Foreman JEREMY S. BURGESS S 1019 A 2002 Asst. Surface Mine Foreman JOSEPH C. BURGESS S 3632 02 2002 Surface Mine Foreman STEPHEN D. BURGESS S 4965 11 2011 Surface Mine Foreman THOMAS F. BURGESS S 873 79 1979 Surface Mine Foreman JOSEPH C. BURGESS II S 1046 A 2004 Asst. Surface Mine Foreman RAYMOND J. BURGESS, JR. S 2292 88 1988 Surface Mine Foreman EUGENE M. BURKE S 570 79 1979 Surface Mine Foreman GREGORY S. BURKE S 4088 06 2006 Surface Mine Foreman JAMES H. BURKE SC1459 95 1995 Surface Construction Supervisor JAMES L. BURKE S 2647 91 1991 Surface Mine Foreman PAUL L. BURKE SC811 86 1986 Surface Construction Supervisor RANDY W. BURKE S 568 79 1979 Surface Mine Foreman RICHARD A. BURKE S 5091 12 2012 Surface Mine Foreman RICHARD A. BURKE S 1168 A 2012 Asst. Surface Mine Foreman THOMAS A. BURKE S 3160 96 1996 Surface Mine Foreman DARELL M. BURKHAMER S 402 79 1979 Surface Mine Foreman JOE W. BURKHAMER SC 2836 11 2011 Surface Construction Supervisor DARELL M. BURKHAMER, JR. S 397 79 1979 Surface Mine Foreman KEVIN B. BURKHAMMER S 3586 02 2001 Surface Mine Foreman MICHAEL R. BURKS SS 229 84 1984 Shaft & Slope Examiner Foreman WILLIAM H. BURKS S 3041 94 1994 Surface Mine Foreman WILLIAM R. BURKS S 4294 07 2007 Surface Mine Foreman DAVID L. BURNER SC 2317 05 2005 Surface Construction Supervisor DORIS O. BURNETTE S 893 79 1979 Surface Mine Foreman ROCKY N. BURNETTE S 5563 19 2019 Surface Mine Foreman STANLEY A. BURNISKY, JR. SC420 83 1983 Surface Construction Supervisor ADAM R. BURNS SC 3086 18 2018 Surface Construction Supervisor MICHAEL R. BURNS SC1706 97 1997 Surface Construction Supervisor WILLIAM I. BURNS S 1180 79 1980 Surface Mine Foreman WILLIAM L. BURNS SC 3146 20 2020 Surface Construction Supervisor DOUGLAS W. BURNSIDE S 1436 81 1981 Surface Mine Foreman JUSTIN DALE BURNSIDE S 1373 80 1980 Surface Mine Foreman PHILLIP E. BURNSIDE SC 2611 08 2008 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MICHAEL J. BURRELL S 4665 09 2009 Surface Mine Foreman MICHAEL D. BURRIDGE SS 243 86 1986 Shaft & Slope Examiner Foreman MICHAEL D. BURRIDGE SC818 86 1986 Surface Construction Supervisor JASON A. BURROUGHS SS 47 06 2006 Shaft and Slope Superintendent ROBERT R. BURROWS S 719 79 1979 Surface Mine Foreman BILLY F. BURTON SC809 85 1985 Surface Construction Supervisor JAMES P. BURTON SC444 83 1983 Surface Construction Supervisor GUSSIE BURTON, JR. S 2279 88 1988 Surface Mine Foreman GERALD R. BURWELL S 753 79 1979 Surface Mine Foreman GARY G. BUSH S 224887 1987 Surface Mine Foreman LARRY J. BUSH S 3079 95 1995 Surface Mine Foreman NATHAN D. BUSH S 1356 80 1980 Surface Mine Foreman NATHAN T. BUSH S 3892 05 2005 Surface Mine Foreman NATHAN TODD BUSH S 1050 A 2004 Asst. Surface Mine Foreman WALTON D. BUSH SC1792 97 1997 Surface Construction Supervisor RICHARD L. BUSICK SC687 83 1983 Surface Construction Supervisor DAVID K. BUTCHER S 5322 15 2015 Surface Mine Foreman EVERETT C. BUTCHER S 551 79 1979 Surface Mine Foreman GARY L. BUTCHER SC1587 96 1996 Surface Construction Supervisor GREGORY S. BUTCHER S 5092 12 2012 Surface Mine Foreman KENNETH B. BUTCHER S 5110 12 2012 Surface Mine Foreman LARRY M. BUTCHER S 3294 98 1998 Surface Mine Foreman RONALD J. BUTCHER S 1979 84 1984 Surface Mine Foreman THOMAS A. BUTCHER S 2146 87 1987 Surface Mine Foreman ADAM BUTLER S 4378 07 2007 Surface Mine Foreman ALBERT KEITH BUTLER S 2010 85 1985 Surface Mine Foreman CHARLES JR. BUTLER S 1673 82 1982 Surface Mine Foreman CLAUDE HENRY BUTLER S 1140 79 1979 Surface Mine Foreman DAVID BUTLER S 4337 07 2007 Surface Mine Foreman DEREK W. BUTLER S 4708 09 2009 Surface Mine Foreman GREGORY S. BUTLER S 5145 13 2013 Surface Mine Foreman HERBERT W. BUTLER SC 511 83 1983 Surface Construction Supervisor MICHAEL BUTLER SC766 84 1984 Surface Construction Supervisor ROY E. BUTLER SS 29094 1994 Shaft & Slope Examiner Foreman JOHN ESON BUTNER S 38 78 1978 Surface Mine Foreman ANTHONY R. BUZZARD S 3494 01 2001 Surface Mine Foreman KEVIN R. BUZZARD S 3736 03 2003 Surface Mine Foreman KEVIN R. BUZZARD S 1017 A 2002 Asst. Surface Mine Foreman MAC D. BUZZARD SC834 86 1986 Surface Construction Supervisor CHARLES E. BUZZARD, JR. S 3415 00 2000 Surface Mine Foreman RICKY G. BUZZO SC 3101 18 2018 Surface Construction Supervisor DONALD L. BYERS SC436 83 1983 Surface Construction Supervisor LEVI J. BYLER SC1066 93 1993 Surface Construction Supervisor BRUCE A. BYRD SC1360 95 1995 Surface Construction Supervisor CALVIN W. BYRD S 1577 82 1982 Surface Mine Foreman DEWEY S. BYRD SC141 82 1982 Surface Construction Supervisor RONALD L. BYRD SC608 83 1983 Surface Construction Supervisor CHARLES M. BYRNSIDE S 1200 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOHN L. CADMUS S 2469 90 1990 Surface Mine Foreman TIMOTHY L. CADMUS S 4462 08 2008 Surface Mine Foreman BRADLEY CAIN S 4171 06 2006 Surface Mine Foreman DANIEL R. CAIN SC 3023 15 2015 Surface Construction Supervisor EDWARD E. CAIN S 1669 82 1982 Surface Mine Foreman SAM W. CAIN S 3058 95 1995 Surface Mine Foreman RODNEY D. CAIRNS S 3303 98 1998 Surface Mine Foreman JOHN E. CALCAMP SC 540 83 1983 Surface Construction Supervisor GEORGE R. CALDABAUGH SC923 90 0 Surface Construction Supervisor BAXTER L. CALDWELL S 2454 89 1989 Surface Mine Foreman CLEDITH H. CALDWELL S 1572 82 1982 Surface Mine Foreman GARY W. CALDWELL S 5201 13 2013 Surface Mine Foreman GERALD A. CALDWELL SC 2241 04 2004 Surface Construction Supervisor JAMES R. CALDWELL S 685 79 1979 Surface Mine Foreman JAMES R. CALDWELL S3242 97 1997 Surface Mine Foreman JAMES LEE CALDWELL S 167 78 1978 Surface Mine Foreman JEFFREY B. CALDWELL S 3984 05 2005 Surface Mine Foreman MARK A. CALDWELL S 4466 08 2008 Surface Mine Foreman RICK A. CALDWELL S 4610 09 2009 Surface Mine Foreman STEPHEN CALDWELL S 3651 03 2003 Surface Mine Foreman BOBBY G. CALDWELL, JR. S 3771 04 2004 Surface Mine Foreman JOE CALECINO, JR. SC814 86 1986 Surface Construction Supervisor JAMES R. CALES SC 2239 03 2003 Surface Construction Supervisor ROBERT L. CALES S 2172 87 1987 Surface Mine Foreman TIMMY J. CALES SC 2623 08 2008 Surface Construction Supervisor DENVER D. CALHOUN S 5443 17 2017 Surface Mine Foreman CORBIN CALLAHAN SC1029 92 1992 Surface Construction Supervisor EARLEY V. CALLAHAN S 313 79 1979 Surface Mine Foreman JAMES L. CALLAHAN SC373 83 1983 Surface Construction Supervisor LONNIE E. CALLAHAN S 3137 96 1996 Surface Mine Foreman STEPHEN J. CALLAS S 1035 79 1979 Surface Mine Foreman ROY E. CALLAWAY S 2534 90 1990 Surface Mine Foreman KENNETH E. CALLIGON SC 2773 11 2011 Surface Construction Supervisor CHRISTOPHER L. CALLIS S 5452 17 2017 Surface Mine Foreman DAVID R. CALLISON S 5256 14 2014 Surface Mine Foreman KENNETH E. CALLISON S 4192 06 2006 Surface Mine Foreman WILLIAM H. CALLISON S356 79 1979 Surface Mine Foreman JASON R. CALVERT SS 371 05 2005 Shaft & Slope Examiner Foreman JOHN D. CAMERON SC1775 97 1997 Surface Construction Supervisor JOSHUA A. CAMERON S 5307 15 2015 Surface Mine Foreman BOBBY L. CAMERON JR. SC 2098 01 2001 Surface Construction Supervisor DANIEL L. CAMPBELL SC1817 97 1997 Surface Construction Supervisor DAVID CAMPBELL SC475 83 1983 Surface Construction Supervisor DAVID J. CAMPBELL S 3622 02 2002 Surface Mine Foreman ERIC V. CAMPBELL S 3644 02 2002 Surface Mine Foreman ERIC V. CAMPBELL SC 2186 02 2002 Surface Construction Supervisor GEORGE M. CAMPBELL S 5352 16 2016 Surface Mine Foreman JACK M. CAMPBELL SC354 83 1983 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JAMES R. CAMPBELL S 2686 91 1991 Surface Mine Foreman JEFFREY W. CAMPBELL S 1929 84 1984 Surface Mine Foreman JOHN CAMPBELL S 5048 12 2012 Surface Mine Foreman JOHN M. CAMPBELL S 2890 93 1993 Surface Mine Foreman JOHNNY W. CAMPBELL S 1457 81 1981 Surface Mine Foreman KENNETH R. CAMPBELL S 3424 00 2000 Surface Mine Foreman RANDY G. CAMPBELL SC 2445 06 2006 Surface Construction Supervisor ROBERT L. CAMPBELL S 2717 91 1991 Surface Mine Foreman ROBERT HAROLD CAMPBELL S 249 79 1979 Surface Mine Foreman ROGER L. CAMPBELL SC096 82 1982 Surface Construction Supervisor RONNIE L. CAMPBELL S 3861 04 2004 Surface Mine Foreman STEVEN G. CAMPBELL SC616 83 1983 Surface Construction Supervisor THOMAS R. CAMPBELL SC435 83 1983 Surface Construction Supervisor ZENAS CAMPBELL S 2687 91 1991 Surface Mine Foreman ZENAS CAMPBELL, JR. S 774 79 1979 Surface Mine Foreman MICHAEL P. CANADA SC1431 95 1995 Surface Construction Supervisor CHARLES W. CANADAY SC 2907 13 2013 Surface Construction Supervisor JOEY W. CANADAY S 5077 12 2012 Surface Mine Foreman MILTON D. CANAN SC1622 96 1996 Surface Construction Supervisor ROY E. CANFIELD S 2268 88 1988 Surface Mine Foreman WARD E. CANFIELD SC1263 95 1995 Surface Construction Supervisor CARL CANISTRARO S 846 79 1979 Surface Mine Foreman BRUCE M. CANNODE SC1000 92 1992 Surface Construction Supervisor NICHOLAS J. CANNON SS 129 19 2019 Shaft and Slope Superintendent PAUL D. CANNON SS 390 18 2018 Shaft & Slope Examiner Foreman DAVID E. CANTERBURY S 5135 13 2013 Surface Mine Foreman DAVID E. CANTERBURY S 5267 14 2014 Surface Mine Foreman MACK S. CANTERBURY S3220 97 1997 Surface Mine Foreman BOBBY G. CANTERBURY,JR. S 4581 08 2008 Surface Mine Foreman BILLY J. CANTRELL S 4776 10 2010 Surface Mine Foreman BILLY R. CANTRELL S 5467 18 2018 Surface Mine Foreman CLEN D. CANTRELL S 3347 99 1999 Surface Mine Foreman EULAS P. CANTRELL S 2621 91 1991 Surface Mine Foreman JASON A. CANTRELL S 5457 18 2018 Surface Mine Foreman LARRY M. CANTRELL S 1620 82 1982 Surface Mine Foreman MARK CANTRELL S 4830 10 2010 Surface Mine Foreman JAMES M. CANTWELL SC 2018 99 1999 Surface Construction Supervisor ANTHONY L. CANZONIERI SC467 83 1983 Surface Construction Supervisor JAMES CAPISTRANT S 4705 09 2009 Surface Mine Foreman GAETANO M. CAPPARELLI SC 2658 09 2009 Surface Construction Supervisor RICHARD AMERIGO CAPPELLARI S 263 79 1979 Surface Mine Foreman SAMUEL J. CARANDA S 712 79 1979 Surface Mine Foreman CHARLES W. CARDINALE SC067 82 1982 Surface Construction Supervisor JOSEPH P. CARDULLO S 4622 09 2009 Surface Mine Foreman STEPHEN F. CAREY S 2283 88 1988 Surface Mine Foreman OAKLEY CARMACK S 3663 03 2003 Surface Mine Foreman RANDALL E. CARMICHAEL SC1208 95 1995 Surface Construction Supervisor ROBERT L. CARNAHAN SC970 92 1992 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILLIAM J. CARNEY S 4556 08 2008 Surface Mine Foreman BRUNO M. CARON SC 2145 01 2001 Surface Construction Supervisor GILLES M. CARON SC 2144 01 2001 Surface Construction Supervisor JOSH R. CARON SC 2952 13 2013 Surface Construction Supervisor MICHEL P. CARON SC 2143 01 2001 Surface Construction Supervisor RAYMOND A. CARON SC 2141 01 2001 Surface Construction Supervisor SHANE C. CARON SC 2259 04 2004 Surface Construction Supervisor STEVEN M. CARON SC 2953 13 2013 Surface Construction Supervisor BASIL A. CARPENTER SC837 86 1986 Surface Construction Supervisor BILLY J. CARPENTER SC 2494 06 2006 Surface Construction Supervisor BRIAN L. CARPENTER SS 336 02 2002 Shaft & Slope Examiner Foreman CHANDLER S. CARPENTER SC 2619 08 2008 Surface Construction Supervisor CHRISTOPHER C. CARPENTER S 5056 12 2012 Surface Mine Foreman DANIEL R. CARPENTER SC838 86 1986 Surface Construction Supervisor FONCE CARPENTER S 169 78 1978 Surface Mine Foreman HAROLD V. CARPENTER S 1841 84 1984 Surface Mine Foreman ISAAC A. CARPENTER SC1553 96 1996 Surface Construction Supervisor JACKIE RONALD CARPENTER S 2206 87 1987 Surface Mine Foreman JAMES L. CARPENTER SS309 97 1997 Shaft & Slope Examiner Foreman LUTHER L. CARPENTER SC839 86 1986 Surface Construction Supervisor MICHAEL R. CARPENTER S 1412 81 1981 Surface Mine Foreman MICHAEL R. CARPENTER SC653 83 1983 Surface Construction Supervisor RANDY L. CARPENTER SC832 86 1986 Surface Construction Supervisor RICHARD L. CARPENTER S 4109 06 2006 Surface Mine Foreman GEORGE D. CARPER SC 2756 10 2010 Surface Construction Supervisor HARRY G. CARPER S 2541 90 1990 Surface Mine Foreman JAMES A. CARPER S 4114 06 2006 Surface Mine Foreman RITCHIE V. CARPER S 60 78 1978 Surface Mine Foreman CURT D. CARR S 4749 10 2010 Surface Mine Foreman ERIC B. CARR S 5103 12 2012 Surface Mine Foreman IVAN J. CARR SC 2493 06 2006 Surface Construction Supervisor JAMES K. CARR SC852 86 1986 Surface Construction Supervisor JAMES P. CARR S 2502 90 1990 Surface Mine Foreman KENNETH CARR S 1890 84 1984 Surface Mine Foreman PATRICK H. CARR S 4533 08 2008 Surface Mine Foreman PATRICK H. CARR S 1073 A 2006 Asst. Surface Mine Foreman PAUL V. CARR S 1945 84 1984 Surface Mine Foreman ROGER L. CARR SC659 83 1983 Surface Construction Supervisor STEVEN C. CARR S 1895 84 1984 Surface Mine Foreman WILLIAM L. CARR S 1872 84 1984 Surface Mine Foreman CARNIE CARR JR. S 1953 84 1984 Surface Mine Foreman CARROLL C. CARR JR. S 3601 02 2002 Surface Mine Foreman CARNIE CARR SR. S 662 79 1979 Surface Mine Foreman GUSTAVO H. CARRANZA SC 3142 19 2019 Surface Construction Supervisor JAMES R. CARROLL S 1798 83 1983 Surface Mine Foreman LLOYD F. CARROLL S 5040 12 2012 Surface Mine Foreman ROGER L. CARROLL S 1603 82 1982 Surface Mine Foreman JAMES R. CARROLL, II SC 2377 05 2005 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE FRANK P. CARSON S 47 78 1978 Surface Mine Foreman GEORGE CARSON SC 2022 99 1999 Surface Construction Supervisor JAMES F. CARSON S 454 79 1979 Surface Mine Foreman JAMES F. CARSON SC371 83 1983 Surface Construction Supervisor LARRY CARTE SC 2504 06 2006 Surface Construction Supervisor LOYD A. CARTE S 727 79 1979 Surface Mine Foreman DONALD V. CARTER SC 2820 11 2011 Surface Construction Supervisor DORSEY G. CARTER S 1290 80 1980 Surface Mine Foreman HERSHEL L. CARTER S 133 78 1978 Surface Mine Foreman LARRY W. CARTER SS 21 05 2005 Shaft and Slope Superintendent MICHAEL K. CARTER S 4345 07 2007 Surface Mine Foreman HERSHEL L. CARTER, JR. S 3012 95 1995 Surface Mine Foreman TEDDY F. CARTWRIGHT S 1314 80 1980 Surface Mine Foreman KENNETH R. CARUTHERS S 3070 95 1995 Surface Mine Foreman JOE B. CARUTHERS, JR. S 1172 79 1979 Surface Mine Foreman ELWOOD LAWRENCE CARVER S 624 79 1979 Surface Mine Foreman PAUL D. CASDORPH S 2737 91 1991 Surface Mine Foreman CHARLES F. CASE S 152 78 1978 Surface Mine Foreman CHRISTOPHER M. CASE S 4852 10 2010 Surface Mine Foreman HALE D. CASE S 603 79 1979 Surface Mine Foreman RICHARD D. CASERTA S 2416 89 1989 Surface Mine Foreman TIMOTHY J. CASERTA S 3819 04 2004 Surface Mine Foreman TIMOTHY M. CASERTA S3223 97 1997 Surface Mine Foreman DONALD K. CASEY S 3140 96 1996 Surface Mine Foreman MERVIN B. CASEY S 3068 95 1995 Surface Mine Foreman SAMUEL M. CASEY S 3173 96 1996 Surface Mine Foreman PAUL D. CASKEY S 3386 00 2000 Surface Mine Foreman LARRY W. CASSELL S 3739 03 2003 Surface Mine Foreman ALBERT L. CASTLE S 2616 91 1991 Surface Mine Foreman EARL L. CASTLE S 3094 95 1995 Surface Mine Foreman JAMES K. CASTLE S 4413 08 2008 Surface Mine Foreman JAMES K. CASTLE S 1090 A 2007 Asst. Surface Mine Foreman JAMES R. CASTLE S 2039 85 1985 Surface Mine Foreman MICHAEL C. CASTLE S 2465 90 1990 Surface Mine Foreman AVERAL B. CASTO S 1748 83 1983 Surface Mine Foreman DOYLE E. CASTO SC180 82 1982 Surface Construction Supervisor GLENN L. CASTO SC1207 95 1995 Surface Construction Supervisor WILLIAM G. CASTO SC901 90 1990 Surface Construction Supervisor WILLIAM R. CASTO SC590 83 1983 Surface Construction Supervisor WILLIAM G. CASTO JR S 32 78 1978 Surface Mine Foreman PHILIP K. CASTO, JR. SC585 83 1983 Surface Construction Supervisor MELVIN F. CATLIN S 3380 00 2000 Surface Mine Foreman GARRY R. CATTAFESTA SC 3004 14 2014 Surface Construction Supervisor LARRY B. CATTAFESTA SC 2068 00 2000 Surface Construction Supervisor ALONZO CAUDILL SC1033 92 1992 Surface Construction Supervisor RONNIE CAUDILL SC1028 92 1992 Surface Construction Supervisor STEPHEN R. CAUDILL S 2722 91 1991 Surface Mine Foreman WILLIAM C. CAUDILL SC078 82 1982 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILLIAM G. CAUDILL S 2759 92 1992 Surface Mine Foreman JAMES CAUSEY SC 2916 13 2013 Surface Construction Supervisor DAVID M. CAVINS SC 2566 07 2007 Surface Construction Supervisor JOSEPH CAVINS SC 2567 07 2007 Surface Construction Supervisor KENNETH L. CAYLOR S 5149 13 2013 Surface Mine Foreman ERNEST RICHARD CAYNOR S 175 78 1978 Surface Mine Foreman CHARLES K. CECIL S 2431 89 1989 Surface Mine Foreman KENTON CECIL S 4911 11 2011 Surface Mine Foreman KENTON CECIL S 1163 A 2011 Asst. Surface Mine Foreman ROBERT J. CENTINARO S 713 79 1979 Surface Mine Foreman CARL T. CHAFFINS S 3118 95 1995 Surface Mine Foreman DAMON R. CHAFFINS S 3343 99 1999 Surface Mine Foreman JOSEPH S. CHAFIN SC 2950 13 2013 Surface Construction Supervisor RANSOM L. CHAFIN JR. SC 2074 00 2000 Surface Construction Supervisor RANSOM CHAFIN, JR. S 4857 10 2010 Surface Mine Foreman GARY L. CHAMBERS S 3769 04 2004 Surface Mine Foreman GLENN D. CHAMBERS S 1016 79 1979 Surface Mine Foreman JIMMY L. CHAMBERS SC744 84 1984 Surface Construction Supervisor PAUL D. CHAMBERS S 1452 81 1981 Surface Mine Foreman DANNY O. CHANDLER S 625 79 1979 Surface Mine Foreman RONALD N. CHANDLER S 1102 79 1979 Surface Mine Foreman WALTER H. CHANDLER SC359 83 1983 Surface Construction Supervisor ROBERT M. CHANDLER II SC 2715 10 2010 Surface Construction Supervisor RONALD T. CHAPIN S 2244 87 1987 Surface Mine Foreman RONALD T. CHAPIN SC1488 96 1996 Surface Construction Supervisor CHARLES F. CHAPMAN S 1486 81 1981 Surface Mine Foreman DALE E. CHAPMAN SC 2515 06 2006 Surface Construction Supervisor DALE O. CHAPMAN SC1064 93 1993 Surface Construction Supervisor DEREK M. CHAPMAN SC 2829 11 2011 Surface Construction Supervisor IRA GUY CHAPMAN S 88 78 1978 Surface Mine Foreman JACK CHAPMAN SC 565 83 1983 Surface Construction Supervisor JAMES L. CHAPMAN SC 2254 04 2004 Surface Construction Supervisor JAMES S. CHAPMAN S 143 78 1978 Surface Mine Foreman JOHN D. CHAPMAN S 3329 99 1999 Surface Mine Foreman KENNETH W. CHAPMAN S 3 78 1978 Surface Mine Foreman MATTHEW D. CHAPMAN S 5380 16 2016 Surface Mine Foreman PHILLIP ROGER CHAPMAN S 1391 80 1980 Surface Mine Foreman RALPH L. CHAPMAN S 751 79 1979 Surface Mine Foreman ROGER L. CHAPMAN S 1272 80 1980 Surface Mine Foreman STEPHEN D. CHAPMAN S 2241 87 1987 Surface Mine Foreman TERRY L. CHAPMAN S 5461 18 2018 Surface Mine Foreman THOMAS R. CHAPMAN S 2656 91 1991 Surface Mine Foreman WILLIAM A. CHAPMAN S 1516 81 1981 Surface Mine Foreman WILLIAM D. CHAPMAN III S 638 79 1979 Surface Mine Foreman RONALD L. CHAPMAN, JR. SC1429 95 1995 Surface Construction Supervisor TOMMY D. CHAPPELL S 5331 15 2015 Surface Mine Foreman ROBERT F. CHARCANDY S 2954 93 1993 Surface Mine Foreman BILLY J. CHARLES S 4161 06 2006 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE GARY L. CHARLES S 2003 85 1985 Surface Mine Foreman HARRY CHARLES S 1265 80 1980 Surface Mine Foreman LARRY D. CHARLES S 2580 90 1990 Surface Mine Foreman RON E. CHARLES S 2424 89 1989 Surface Mine Foreman MARK A. CHARLTON SS 54 06 2006 Shaft and Slope Superintendent MARK A. CHARLTON SS 25186 1986 Shaft & Slope Examiner Foreman ROBERT CHARLTON, JR. SC 2052 00 2000 Surface Construction Supervisor JOSEPH GEORGE CHARNOPLOSKY, JR. S 2408 89 1989 Surface Mine Foreman PAUL M. CHARTER S 2435 89 1989 Surface Mine Foreman ANTONIO CHAVEZ SC 2553 07 2007 Surface Construction Supervisor WILLIAM LOUIS CHEDESTER S 1680 82 1982 Surface Mine Foreman WILLIAM K. CHEEK S 4122 06 2006 Surface Mine Foreman WILLIAM CARL CHENOWETH S 338 79 1979 Surface Mine Foreman RICK D. CHEWNING S 4563 08 2008 Surface Mine Foreman RANDY A. CHICO SC 2346 05 2005 Surface Construction Supervisor JOSEPH D. CHIDESTER SC317 83 1983 Surface Construction Supervisor ROBERT A. CHIESI SS 18480 1980 Shaft & Slope Examiner Foreman ROBERT A. CHIESI SC119 82 1982 Surface Construction Supervisor ALVIN E. CHILCO SC1365 95 1995 Surface Construction Supervisor CHARLES D. CHILDERS S 3686 03 2003 Surface Mine Foreman RICHARD L. CHILDERS S 5140 13 2013 Surface Mine Foreman ROBERT S. CHILDERS SC1476 95 1995 Surface Construction Supervisor CHARLES A. CHILDRESS S 3151 96 1996 Surface Mine Foreman DANIEL C. CHILDS JR. SC 1959 98 1998 Surface Construction Supervisor DAVE CHRISTIAN SC615 83 1983 Surface Construction Supervisor DONALD E. CHRISTIAN S 18 78 1978 Surface Mine Foreman JAMES T. CHRISTIAN SC1081 93 1993 Surface Construction Supervisor WILLIAM O. CHRISTIAN S 1837 84 1984 Surface Mine Foreman CLINTON CHRISTMAN S 4794 10 2010 Surface Mine Foreman RALPH W. CHRISTY, JR. S 3894 05 2005 Surface Mine Foreman GUS CHRYSSOFOS S 3923 05 2005 Surface Mine Foreman GUS CHRYSSOFOS SC1641 96 1996 Surface Construction Supervisor MICHAEL CHRYSSOFOS S 3924 05 2005 Surface Mine Foreman MICHAEL CHRYSSOFOS SC 2083 01 2001 Surface Construction Supervisor Charles D. Church S 2753 92 1992 Surface Mine Foreman DARRELL W. CHURCH S 1129 79 1979 Surface Mine Foreman DARRELL W. CHURCH SS 51 73 1973 Shaft & Slope Examiner Foreman HERMIE L. CHURCH SS 60 74 1974 Shaft & Slope Examiner Foreman ROY J. CHURCH S 4206 06 2006 Surface Mine Foreman TERRY G. CHURCH S 2872 93 1993 Surface Mine Foreman KEITH A. CIPRIANI S 2944 93 1993 Surface Mine Foreman DENNIS T. CISCO S 127 78 1978 Surface Mine Foreman SIDNEY C. CISCO S 4065 06 2006 Surface Mine Foreman BRUCE W. CLARK SC570 83 1983 Surface Construction Supervisor CECIL O. CLARK SS 11977 0 Shaft & Slope Examiner Foreman DAN M. CLARK S 2460 89 1989 Surface Mine Foreman DENNIS D. CLARK S 2566 90 1990 Surface Mine Foreman DENNIS R. CLARK SC1168 94 1994 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE IRVIN M. CLARK SC710 84 1984 Surface Construction Supervisor RANDY L. CLARK SC1617 96 1996 Surface Construction Supervisor ROBERT E. CLARK SC031 82 1982 Surface Construction Supervisor TERRY L. CLARK SC 2509 06 2006 Surface Construction Supervisor THOMAS C. CLARK S 2842 92 1992 Surface Mine Foreman TIMOTHY A. CLARK SC 3074 17 2017 Surface Construction Supervisor VIRGIL L. CLARK SC434 83 1983 Surface Construction Supervisor HOLLY E. CLARK, JR. S 3046 95 1995 Surface Mine Foreman BRIAN L. CLAY S 3754 04 2004 Surface Mine Foreman BRIAN L. CLAY S 1032 A 2003 Asst. Surface Mine Foreman DONALD W. CLAY S 2311 88 1988 Surface Mine Foreman FRANK D. CLAY S 652 79 1979 Surface Mine Foreman FRANK D. CLAY SC 38783 1983 Surface Construction Supervisor FRANK D. CLAY SC387 83 1983 Surface Construction Supervisor HOMER E. CLAY SC140 82 1982 Surface Construction Supervisor MICHAEL W. CLAY S 4582 08 2008 Surface Mine Foreman SCOTT W. CLAY S 2981 94 1994 Surface Mine Foreman STEVE D. CLAY SC1296 95 1995 Surface Construction Supervisor TEDDY RAY CLAY S 1508 81 1981 Surface Mine Foreman ZACHARY R. CLAY S 5545 18 2018 Surface Mine Foreman FREDDY E. CLAY, JR. S 3829 04 2004 Surface Mine Foreman CHARLES CLAYPOOL SC030 82 1982 Surface Construction Supervisor DONALD L. CLAYTON SC125 82 1982 Surface Construction Supervisor STANLEY F. CLAYTON S 2749 92 1992 Surface Mine Foreman WAYNE P. CLAYTON S 722 79 1979 Surface Mine Foreman ROCKY L. CLEARY SC 2753 10 2010 Surface Construction Supervisor ROBERT B. CLEGHORN, JR. S 176 78 1978 Surface Mine Foreman DAVID A. CLEMENS SC 520 83 1983 Surface Construction Supervisor DELORMAY D. CLEMENT S 614 79 1979 Surface Mine Foreman JAMES R. CLENDENEN SC681 83 1983 Surface Construction Supervisor LARRY J. CLENDENIN SC 2297 05 2005 Surface Construction Supervisor MICHAEL L. CLENDENIN SC 2425 06 2006 Surface Construction Supervisor ANTHONY C. CLEVENGER S 4748 10 2010 Surface Mine Foreman CECIL E. CLEVENGER SC709 84 1984 Surface Construction Supervisor CLINTON C. CLEVENGER S 3085 95 1995 Surface Mine Foreman JAMES M. CLEVENGER S 248590 1990 Surface Mine Foreman JERRY D. CLEVENGER S 5131 12 2012 Surface Mine Foreman JOHN M. CLEVENGER SC1385 95 1995 Surface Construction Supervisor VERNON D. CLEVENGER SC803 85 1985 Surface Construction Supervisor WOODROW L. CLEVINGER S 5079 12 2012 Surface Mine Foreman JOHN A. CLICK S 1231 79 1979 Surface Mine Foreman ROBERT L. CLIFT S 489 79 1979 Surface Mine Foreman JOHN W. CLIFTON II S 2791 92 1992 Surface Mine Foreman BASIEL C. CLINE S 4302 07 2007 Surface Mine Foreman BERNARD F. CLINE S 4727 10 2010 Surface Mine Foreman DANIEL L. CLINE S 4937 11 2011 Surface Mine Foreman DENVER CLINE S 950 79 1979 Surface Mine Foreman ERIC K. CLINE S 2886 93 1993 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE GORDON T. CLINE S 5302 15 2015 Surface Mine Foreman JACK E. CLINE SC1289 95 1995 Surface Construction Supervisor JAMES I. CLINE S 3404 00 2000 Surface Mine Foreman JIMMY E. CLINE SC1290 95 1995 Surface Construction Supervisor JOHNNIE CLINE S 1451 81 1981 Surface Mine Foreman JOHNNIE S. CLINE S 5262 14 2014 Surface Mine Foreman KERRY W. CLINE S 2065 85 1985 Surface Mine Foreman LARRY D. CLINE SC1291 95 1995 Surface Construction Supervisor LYNNE C. CLINE S 1566 82 1982 Surface Mine Foreman LYNNE C. CLINE SC 2082 01 2001 Surface Construction Supervisor MARK T. CLINE S 4807 10 2010 Surface Mine Foreman MARK W. CLINE S 745 79 1979 Surface Mine Foreman NOXAL W. CLINE S 744 79 1979 Surface Mine Foreman PARKER D. CLINE SC1361 95 1995 Surface Construction Supervisor ROBBIE M. CLINE S 5105 12 2012 Surface Mine Foreman ROBERT H. CLINE S 872 79 1979 Surface Mine Foreman RODNEY L. CLINE S 3124 95 1995 Surface Mine Foreman RODNEY L. CLINE S 5635 20 2020 Surface Mine Foreman RODNEY L. CLINE SC882 87 1987 Surface Construction Supervisor ROY A. CLINE S 4209 06 2006 Surface Mine Foreman SCOTTY R. CLINE SC 2244 04 2004 Surface Construction Supervisor VICTOR R. CLINE S 4938 11 2011 Surface Mine Foreman ALBERT CLINE, JR. S 2889 93 1993 Surface Mine Foreman BERLIN E. CLINE, JR. SC1288 95 1995 Surface Construction Supervisor JOHN L. CLINE, JR. SC1328 95 1995 Surface Construction Supervisor CHARLES T. CLISE S 3592 02 2002 Surface Mine Foreman MICHAEL CLODFELDER SC262 82 1982 Surface Construction Supervisor JACK A. CLOTHIER SC 2645 08 2008 Surface Construction Supervisor CHARLES F. CLOUD S 1258 80 1980 Surface Mine Foreman CHARLES G. CLOUD S 3714 03 2003 Surface Mine Foreman DAVID P. CLOWDUS S 1149 79 1979 Surface Mine Foreman JAMES D COALSON SC 1896 98 1998 Surface Construction Supervisor KENNETH COALSON S 4697 09 2009 Surface Mine Foreman KENNETH COALSON S 1134 A 2009 Asst. Surface Mine Foreman CARL D. COBB S 2439 89 1989 Surface Mine Foreman MICHAEL J. COBB SC 2174 02 2002 Surface Construction Supervisor WILLIAM H. COBB SC1847 97 1997 Surface Construction Supervisor GARY D. COBURN SC 2714 10 2010 Surface Construction Supervisor JOHN M. COBURN S 1164 79 1979 Surface Mine Foreman CHESTER COCHRAN SC1096 94 1994 Surface Construction Supervisor DAVID L. COCHRAN S 1203 79 1979 Surface Mine Foreman DONALD L. COCHRAN SS 15279 1979 Shaft & Slope Examiner Foreman GILBERT HOWARD COCHRAN S 15 78 1978 Surface Mine Foreman JEFFREY D. COCHRAN S 3823 04 2004 Surface Mine Foreman JOHN COCHRAN SC1505 96 1996 Surface Construction Supervisor JUSTIN W. COCHRAN SC 2438 06 2006 Surface Construction Supervisor LARRY D. COCHRAN SC 2439 06 2006 Surface Construction Supervisor MATT D. COCHRAN S 4887 11 2011 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MATTHEW D. COCHRAN SC 2441 06 2006 Surface Construction Supervisor ROBERT L. COCHRAN S 4744 10 2010 Surface Mine Foreman THOMAS R. COCHRAN SC139 82 1982 Surface Construction Supervisor TIMOTHY S. COCHRAN S 2481 90 1990 Surface Mine Foreman TOMMY D. COCHRAN S 1174 79 1979 Surface Mine Foreman MAX W. COCHRAN JR. S 5137 13 2013 Surface Mine Foreman ALEX COCHRAN, JR. S 4477 08 2008 Surface Mine Foreman GILBERT HOWARD COCHRAN, JR. S 4742 10 2010 Surface Mine Foreman DONIVEN COCHRAN, SR. SC933 91 0 Surface Construction Supervisor BEN COCHRANE SS 80 07 2007 Shaft and Slope Superintendent STEPHEN N. COCHRANE S 3387 00 2000 Surface Mine Foreman KEVIN A. COCUS SC 2791 11 2011 Surface Construction Supervisor ROBERT A. CODDINGTON SC1595 96 1996 Surface Construction Supervisor DAVIS W. CODELL SC029 82 1982 Surface Construction Supervisor J.HAGAN CODELL SC027 82 1982 Surface Construction Supervisor JAMES C. CODELL, III SC028 82 1982 Surface Construction Supervisor COY A. COEN S 1268 80 1980 Surface Mine Foreman BRYAN D. COFFMAN S 1769 83 1983 Surface Mine Foreman JOHNNIE L. COFFMAN S 2356 88 1988 Surface Mine Foreman LEE R. COFFMAN SC944 91 1991 Surface Construction Supervisor ROBERT L. COFFMAN SC 1967 98 1998 Surface Construction Supervisor CARL JOSEPH COGAR S 583 79 1979 Surface Mine Foreman EVERETT R. COGAR S 5356 16 2016 Surface Mine Foreman LANTIE D. COGAR S 331 79 1979 Surface Mine Foreman LAWRENCE A. COGAR SC 2048 00 2000 Surface Construction Supervisor CHARLES E. COKLEY S 5104 12 2012 Surface Mine Foreman TONY COLANGELO S 3692 03 2003 Surface Mine Foreman KEVIN L. COLBIRD S 5540 18 2018 Surface Mine Foreman ROBERT E. COLDREN S 3122 95 1995 Surface Mine Foreman FRANK COLE S 1407 81 1981 Surface Mine Foreman KENNETH C. COLE S 3589 02 2002 Surface Mine Foreman LANITIE M. COLE S 768 79 1979 Surface Mine Foreman MATTHEW E. COLE S 5186 13 2013 Surface Mine Foreman ROY D. COLE SC723 84 1984 Surface Construction Supervisor TIMOTHY F. COLE S 4554 08 2008 Surface Mine Foreman TIMOTHY R. COLE S 5264 14 2014 Surface Mine Foreman CLAUDE COLE, JR. S 1310 80 1980 Surface Mine Foreman NORMAN L. COLEBANK S 348 79 1979 Surface Mine Foreman MICHAEL COLEGROVE S 3845 04 2004 Surface Mine Foreman ANTHONY C. COLEMAN S 2930 93 1993 Surface Mine Foreman BUD COLEMAN S 4669 09 2009 Surface Mine Foreman CHARLES COLEMAN S 168 78 1978 Surface Mine Foreman CLINTON B. COLEMAN S 1262 80 1980 Surface Mine Foreman DAVID R. COLEMAN S 5442 17 2017 Surface Mine Foreman HAROLD D. COLEMAN SC 1864 98 1998 Surface Construction Supervisor HARRISON T. COLEMAN S 2425 89 1989 Surface Mine Foreman HARRISON T. COLEMAN SC 2344 05 2005 Surface Construction Supervisor NICHOLAS B. COLEMAN S 5593 19 2019 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE SHAWN D. COLEMAN S 3706 03 2003 Surface Mine Foreman SHAWN D. COLEMAN S 1022 A 2002 Asst. Surface Mine Foreman SHAWN D. COLEMAN SC 3141 19 2019 Surface Construction Supervisor TIM COLEMAN S 1793 83 1983 Surface Mine Foreman WILLARD L. COLEMAN S 4105 06 2006 Surface Mine Foreman RAYMOND K. COLEMAN, JR. S 2880 93 1993 Surface Mine Foreman MICHAEL D. COLLETT S 5569 19 2019 Surface Mine Foreman WILLIAM R. COLLETT S 3027 94 1994 Surface Mine Foreman JAMES A. COLLETTE S 2612 91 1991 Surface Mine Foreman TOM N. COLLEY S 209 78 1978 Surface Mine Foreman CHARLES R. COLLIER s 3198 97 1997 Surface Mine Foreman JAMES R. COLLIER S 3680 03 2003 Surface Mine Foreman BENJAMIN M. COLLINS S 5460 18 2018 Surface Mine Foreman BILLY R. COLLINS S 1597 82 1982 Surface Mine Foreman BOBBY COLLINS S 4089 06 2006 Surface Mine Foreman BRANDON K. COLLINS S 4380 07 2007 Surface Mine Foreman CLINTON COLLINS S 517 79 1979 Surface Mine Foreman DANIEL R. COLLINS SC079 82 1982 Surface Construction Supervisor DOUGLAS E. COLLINS S 3763 04 2004 Surface Mine Foreman EARL J. COLLINS SC1050 92 1992 Surface Construction Supervisor ELDON J. COLLINS S 1776 83 1983 Surface Mine Foreman ELI COLLINS SC1030 92 1992 Surface Construction Supervisor ERNEST B. COLLINS S 4813 10 2010 Surface Mine Foreman FRANKLIN D. COLLINS S 2832 92 1992 Surface Mine Foreman FRANKLIN D. COLLINS SC1022 92 1992 Surface Construction Supervisor HAROLD W. COLLINS S2589 90 1990 Surface Mine Foreman HOWARD K. COLLINS S 2912 93 1993 Surface Mine Foreman JACKIE D. COLLINS S 1519 81 1981 Surface Mine Foreman JEFFERY A. COLLINS S 3569 02 2002 Surface Mine Foreman JIMMY E. COLLINS S 214 78 1978 Surface Mine Foreman JOHN A. COLLINS SS 66 06 2006 Shaft and Slope Superintendent JOHN A. COLLINS SC 2501 06 2006 Surface Construction Supervisor KENNITH G. COLLINS SC 1961 98 1998 Surface Construction Supervisor LARRY T. COLLINS S 3920 05 2005 Surface Mine Foreman LARRY T. COLLINS SC 2065 00 2000 Surface Construction Supervisor RANDELL COLLINS S 3326 99 1999 Surface Mine Foreman REX B. COLLINS S 2529 90 1990 Surface Mine Foreman RICKY D. COLLINS S 3629 02 2002 Surface Mine Foreman ROBERT K. COLLINS SC 2341 05 2005 Surface Construction Supervisor RONALD E. COLLINS S 4994 11 2011 Surface Mine Foreman ROY E. COLLINS S 880 79 1979 Surface Mine Foreman ROY G. COLLINS S 5567 19 2019 Surface Mine Foreman TERRY D. COLLINS S 5153 13 2013 Surface Mine Foreman THOMAS M. COLLINS S 4666 09 2009 Surface Mine Foreman THOMAS M. COLLINS SC 2673 09 2009 Surface Construction Supervisor GARLAND L. COLLINS, JR. S 5440 17 2017 Surface Mine Foreman KENNETH R. COLVIN S 5509 18 2018 Surface Mine Foreman LEROY D. COLWELL S 5583 19 2019 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DOYLE R. COMBO S 2413 89 1989 Surface Mine Foreman CHARLES M. COMBS S 3448 01 2001 Surface Mine Foreman DOUGLAS COMBS S 2514 90 1990 Surface Mine Foreman FRANKLIN D. COMBS S 4359 07 2007 Surface Mine Foreman JAMES R. COMBS S 1208 79 1979 Surface Mine Foreman KENNETH COMBS S 2704 91 1991 Surface Mine Foreman MICHAEL W COMBS SC 1893 98 1998 Surface Construction Supervisor SAMUEL J. COMBS S 5584 19 2019 Surface Mine Foreman WILLIAM D. COMBS SC1501 96 1996 Surface Construction Supervisor RAYMOND K. COMER SS 92 10 2010 Shaft and Slope Superintendent SIMON P. COMER SS 55 06 2006 Shaft and Slope Superintendent SIMON P. COMER SS 250 86 1986 Shaft & Slope Examiner Foreman TIMOTHY C. COMER S 4431 08 2008 Surface Mine Foreman TIMOTHY E. COMER SC759 84 1984 Surface Construction Supervisor BRYAN K. COMPTON SC1755 97 1997 Surface Construction Supervisor EDWARD D. COMPTON S 4019 05 2005 Surface Mine Foreman JAMES I. COMPTON S 2158 87 1987 Surface Mine Foreman LARRY K. COMPTON S 105 78 1978 Surface Mine Foreman MICHAEL L. COMPTON SS 389 17 2017 Shaft & Slope Examiner Foreman GUY COMPTON JR S 5066 12 2012 Surface Mine Foreman CHARLES E. COMPTON, III S 2303 88 1988 Surface Mine Foreman TIMOTHY W. CONDEE S 2161 87 1987 Surface Mine Foreman ROBERT L. CONDEE, JR. S 2163 87 1987 Surface Mine Foreman ROBERT L. CONDEE, SR. SC187 82 1982 Surface Construction Supervisor MARTY D. CONELY SC 1907 98 1998 Surface Construction Supervisor MILAN F. CONKLIN SS 203 81 1981 Shaft & Slope Examiner Foreman JOHN M. CONKWRIGHT SC026 82 1982 Surface Construction Supervisor HOWARD D. CONLEE SC 2017 99 1999 Surface Construction Supervisor BRET R. CONLEY S 4693 09 2009 Surface Mine Foreman CHRISTOPHER CONLEY S 5553 18 2018 Surface Mine Foreman FRANKLIN G. CONLEY SC 1937 98 1998 Surface Construction Supervisor JAMES M. CONLEY S 5167 13 2013 Surface Mine Foreman JERRY K. CONLEY S 3732 03 2003 Surface Mine Foreman MAXIE EUGENE CONLEY S 1357 80 1980 Surface Mine Foreman MICHAEL D. CONLEY S1660 82 1982 Surface Mine Foreman RONALD CONLEY S 165 78 1978 Surface Mine Foreman WILLIS CONLEY S 164 78 1978 Surface Mine Foreman JAMES H. CONN S 5209 14 2014 Surface Mine Foreman LARRY F. CONN S 1491 81 1981 Surface Mine Foreman LENNIX G. CONN S 3311 98 1998 Surface Mine Foreman PAUL B. CONN S 1406 81 1981 Surface Mine Foreman BENTON E. CONNER S 1615 82 1982 Surface Mine Foreman ERNEST E. CONNER S 4352 07 2007 Surface Mine Foreman FRANKLIN P. CONNER SC 2000 99 1999 Surface Construction Supervisor JOHNNY R. CONNER S 2875 93 1993 Surface Mine Foreman PAUL J. CONNER S 4446 08 2008 Surface Mine Foreman TROY CONNER SS 354 04 2004 Shaft & Slope Examiner Foreman JIMMY F. CONNOR S 2372 89 1989 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ROBERT CONRAD S 1152 79 1979 Surface Mine Foreman ZACHARY R. CONRAD S 4650 09 2009 Surface Mine Foreman ZACHARY R. CONRAD S 1107 A 2008 Asst. Surface Mine Foreman RONALD CONSTABLE S 5292 15 2015 Surface Mine Foreman ALLEN J. CONSTANT S 4998 11 2011 Surface Mine Foreman ALEX B. COOK SC 2224 03 2003 Surface Construction Supervisor CHARLES D. COOK SC769 84 1984 Surface Construction Supervisor CHRISTOPHER J. COOK S 5087 12 2012 Surface Mine Foreman CRAIG A. COOK S 4042 06 2006 Surface Mine Foreman DANIEL COOK S 994 79 1979 Surface Mine Foreman DONALD G. COOK S 2390 89 1989 Surface Mine Foreman DONALD R. COOK SC 2364 05 2005 Surface Construction Supervisor FRED L. COOK S 2148 87 1987 Surface Mine Foreman GREGORY S. COOK SC1841 97 1997 Surface Construction Supervisor HAROLD A. COOK SC740 84 1984 Surface Construction Supervisor JAMES E. COOK S 1808 83 1983 Surface Mine Foreman KENNETH D. COOK S 5195 13 2013 Surface Mine Foreman LANNIE D. COOK SS 60 06 2006 Shaft and Slope Superintendent LANNIE D. COOK SS 261 90 1990 Shaft & Slope Examiner Foreman LARRY V. COOK SC 2726 10 2010 Surface Construction Supervisor LARRY W. COOK S 2576 90 1990 Surface Mine Foreman LESLEY D. COOK S 5097 12 2012 Surface Mine Foreman LLOYD D. COOK S 2223 87 1987 Surface Mine Foreman MARK A. COOK S 3349 99 1999 Surface Mine Foreman MARK A. COOK SC 2315 05 2005 Surface Construction Supervisor MATTHEW G. COOK S 3368 00 2000 Surface Mine Foreman MIKE W. COOK S 4400 08 2008 Surface Mine Foreman ROBERT COOK S 4718 09 2009 Surface Mine Foreman ROBERT COOK S 1124 A 2008 Asst. Surface Mine Foreman ROGER E. COOK S 1641 82 1982 Surface Mine Foreman ROGER M. COOK S 1595 82 1982 Surface Mine Foreman RONALD D. COOK SC1362 95 1995 Surface Construction Supervisor RONALD W. COOK SS 23284 1984 Shaft & Slope Examiner Foreman STEPHEN RAY COOK S 1557 82 1982 Surface Mine Foreman STEVE P. COOK SS 25989 1989 Shaft & Slope Examiner Foreman TIMMY E. COOK S 2861 92 1992 Surface Mine Foreman TIMOTHY A. COOK SC1416 95 1995 Surface Construction Supervisor THOMAS R. COOK II S 3283 98 1998 Surface Mine Foreman DOUG A. COOK JR. S 5074 12 2012 Surface Mine Foreman WILLIAM COOK, III S 3035 94 1994 Surface Mine Foreman DAVID D. COOK, JR. S 1061 A 2005 Asst. Surface Mine Foreman HOWARD COOK, JR. SC1171 94 1994 Surface Construction Supervisor CHARLES D. COOLEY 2342298 0 Surface Mine Foreman LARRY A. COOLEY S 3147 96 1996 Surface Mine Foreman BOBBY L. COON SC347 83 1983 Surface Construction Supervisor RONALD L. COON SS 17777 1977 Shaft & Slope Examiner Foreman STEPHEN R. COON SS 16079 0 Shaft & Slope Examiner Foreman BERNARD E. COOPER SC158 82 1982 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CODY D. COOPER S 5514 18 2018 Surface Mine Foreman CODY D. COOPER S 1177 A 2016 Asst. Surface Mine Foreman DANNY L. COOPER S 4503 08 2008 Surface Mine Foreman ELVIN L. COOPER SC1482 95 1995 Surface Construction Supervisor GARY L. COOPER S 2949 93 1993 Surface Mine Foreman GARY R. COOPER S 4032 06 2006 Surface Mine Foreman GERALD M. COOPER S 359 79 1979 Surface Mine Foreman GERALD M. COOPER SC1827 97 1997 Surface Construction Supervisor JAMES E. COOPER SC1634 96 1996 Surface Construction Supervisor JEFFREY L. COOPER S 4037 06 2006 Surface Mine Foreman JOFFREE L. COOPER SC1194 95 1995 Surface Construction Supervisor LARRY W. COOPER S 3848 04 2004 Surface Mine Foreman RAMIE E. COOPER SC1460 95 1995 Surface Construction Supervisor ROBERT M. COOPER SC1404 95 1995 Surface Construction Supervisor ROGER D. COOPER S 2609 91 1991 Surface Mine Foreman RONNIE E. COOPER S 1005 A 2001 Asst. Surface Mine Foreman TED A. COOPER S 4975 11 2011 Surface Mine Foreman TERRY D. COOPER S 5176 13 2013 Surface Mine Foreman TERRY D. COOPER S 1170 A 2012 Asst. Surface Mine Foreman TOMMY R. COOPER SC1264 95 1995 Surface Construction Supervisor WALTER S. COOPER S 856 79 1979 Surface Mine Foreman WILLIAM A. COOPER S 3702 03 2003 Surface Mine Foreman DALE C. COOPER JR. S 860 79 1979 Surface Mine Foreman KENNETH E. COOPER, II S 5628 20 2020 Surface Mine Foreman VIRGIL G. COOPER, JR. S 1447 81 1981 Surface Mine Foreman RICHARD M. COPE S3234 97 1997 Surface Mine Foreman EDWARD A. COPELAND SC 533 83 1983 Surface Construction Supervisor THOMAS R. COPELAND SS 41 05 2005 Shaft and Slope Superintendent BRUCE T. COPLEY S 5516 18 2018 Surface Mine Foreman CHRISTOPHER L. COPLEY S 3901 05 2005 Surface Mine Foreman CHRISTOPHER S. COPLEY S 3697 03 2003 Surface Mine Foreman ERVIN COPLEY S 3362 00 2000 Surface Mine Foreman GARY D. COPLEY S 3745 03 2003 Surface Mine Foreman GARY D. COPLEY S 1010 A 2001 Asst. Surface Mine Foreman GEORGE D. COPLEY S 5413 17 2017 Surface Mine Foreman THOMAS COPLEY S 1677 82 1982 Surface Mine Foreman JIMMY D. COPLEY II S 5121 12 2012 Surface Mine Foreman DAVID R. COPLEY II S 3794 04 2004 Surface Mine Foreman JOHN R. COPRIO SC878 87 1987 Surface Construction Supervisor PAUL K. CORBETT SC1453 95 1995 Surface Construction Supervisor FLAVIA E. CORBITT SC764 84 1984 Surface Construction Supervisor GERALD W. CORDER SC 1936 98 1998 Surface Construction Supervisor RANDALL S. CORDER SC 1986 99 1999 Surface Construction Supervisor ROGER M. CORDER SC 1933 98 1998 Surface Construction Supervisor JERRY D. CORDLE SC 1922 98 1998 Surface Construction Supervisor DUWAYNE C. COREY SS 131 19 2019 Shaft and Slope Superintendent JOHN R. CORLE SC 2221 03 2003 Surface Construction Supervisor ANTHONY T. CORNETT S 4962 11 2011 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE NORMAN J. CORNETT S 1211 79 1979 Surface Mine Foreman TIMOTHY S. CORNWELL S 4506 08 2008 Surface Mine Foreman RICHARD L. CORTEZ S 1064 79 1979 Surface Mine Foreman WINFORD CORVETT S 3141 96 1996 Surface Mine Foreman RONALD W. COSALTER JR SC 3125 19 2019 Surface Construction Supervisor CHARLES C. COSNER S 246 78 1978 Surface Mine Foreman CHARLES D. COSNER S 1873 84 1984 Surface Mine Foreman KEITH A. COSNER SC 3017 15 2015 Surface Construction Supervisor RANDY W. COSNER S 1950 84 1984 Surface Mine Foreman RICHARD L. COSNER S 2050 85 1985 Surface Mine Foreman RONALD R. COSNER S 1874 84 1984 Surface Mine Foreman TIMOTHY C. COST SS 292 94 1994 Shaft & Slope Examiner Foreman ROBERT J. COSTA S 983 79 1979 Surface Mine Foreman JAMES A. COSTANZA SC455 83 1983 Surface Construction Supervisor LAWRENCE A. COSTELAC S 340 79 1979 Surface Mine Foreman LAWRENCE G. COSTELAC S 342 79 1979 Surface Mine Foreman ROBERT L. COSTELAC S 341 79 1979 Surface Mine Foreman JOE J. COTTLE S 979 79 1979 Surface Mine Foreman KEITH E. COTTLE SC 2117 01 2001 Surface Construction Supervisor MILLARD T. COTTLE S 3529 01 2001 Surface Mine Foreman WILLIAM A. COTTLE SC110 82 1982 Surface Construction Supervisor DAVID M. COTTLE, SR. S 1797 83 1983 Surface Mine Foreman ALLAN M. COTTRELL SC 2296 05 2005 Surface Construction Supervisor DOUGLAS K. COTTRELL, JR. SC618 83 1983 Surface Construction Supervisor DOUGLAS K. COTTRELL, SR. SC610 83 1983 Surface Construction Supervisor DENNIS L. COTTRILL S 3149 96 1996 Surface Mine Foreman LARRY COTTRILL SC1308 95 1995 Surface Construction Supervisor JAMES B. COUCH S 2712 91 1991 Surface Mine Foreman KEVIN W. COUCH S 5187 13 2013 Surface Mine Foreman PAUL W. COUCH S 4043 06 2006 Surface Mine Foreman MARCUS COUCH, JR. SC1475 95 1995 Surface Construction Supervisor DEAN R. COULSON SC 507 83 1983 Surface Construction Supervisor JOHN L. COUNTS SC 2808 11 2011 Surface Construction Supervisor TOBY COUNTS SS 15979 1979 Shaft & Slope Examiner Foreman TOBY COUNTS SC1329 95 1995 Surface Construction Supervisor JOHN H. COWAN SC 1930 98 1998 Surface Construction Supervisor CARY COWDEN SC 2020 99 1999 Surface Construction Supervisor JOHN J. COWEN, JR. SS 63 06 2006 Shaft and Slope Superintendent ROGER L. COWGER S 4460 08 2008 Surface Mine Foreman JOHN J. COWIN SS 329 99 1999 Shaft & Slope Examiner Foreman JACKIE L. COWLEY S 2064 85 1985 Surface Mine Foreman ADAM A. COX S 5327 15 2015 Surface Mine Foreman ALVIN W. COX S 2157 87 1987 Surface Mine Foreman DANNY C. COX S 1201 79 1979 Surface Mine Foreman DAVID G. COX SC 3008 14 2014 Surface Construction Supervisor DAVID R. COX SC 2579 08 2008 Surface Construction Supervisor MELVIN G. COX SC401 83 1983 Surface Construction Supervisor RODNEY D. COX S 3457 01 2001 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ROY D. COX S 121 78 1978 Surface Mine Foreman STEPHEN D. COX SC 2663 09 2009 Surface Construction Supervisor STEVEN COX S 3162 96 1996 Surface Mine Foreman STEVEN LOREN COX S 1195 79 1979 Surface Mine Foreman DONALD L. COZAD SS 135 78 0 Shaft & Slope Examiner Foreman GARY CRABTREE SC1727 97 1997 Surface Construction Supervisor JASON M. CRADDOCK S 4511 08 2008 Surface Mine Foreman LARRY D. CRADDOCK S 3145 96 1996 Surface Mine Foreman ROBERT P. CRADDOCK S 2124 86 1986 Surface Mine Foreman RYAN M. CRADDOCK S 4944 11 2011 Surface Mine Foreman WILLIAM D. CRADDOCK S 5067 12 2012 Surface Mine Foreman WILLIAM L. CRADDOCK SC166 82 1982 Surface Construction Supervisor CAMERON L. CRAFT S 5309 15 2015 Surface Mine Foreman DONNIE R. CRAFT S 5392 17 2017 Surface Mine Foreman MARK K. CRAFT S 4767 10 2010 Surface Mine Foreman REX R. CRAFT S 3293 98 1998 Surface Mine Foreman RONDAL L. CRAFT S 974 79 1979 Surface Mine Foreman BARRY R. CRAIG SC1102 94 1994 Surface Construction Supervisor WILLIAM R. CRAIG SC1767 97 1997 Surface Construction Supervisor WILLIAM E. CRAIGO S 776 79 1979 Surface Mine Foreman CHARLES S. CRANE S 4530 08 2008 Surface Mine Foreman EDWARD E. CRANE S 1613 82 1982 Surface Mine Foreman HAROLD E. CRANE S 1440 81 1981 Surface Mine Foreman KEVIN L. CRANE SC 2691 09 2009 Surface Construction Supervisor TRINITY L. CRANK S 4846 10 2010 Surface Mine Foreman EVERETTE S. CRAWFORD S 5624 20 2020 Surface Mine Foreman KYLE L. CRAWFORD SC 2637 08 2008 Surface Construction Supervisor LEWIS C. CRAWFORD S 1253 80 1980 Surface Mine Foreman ROBERT T. CRAWFORD SC 3052 17 2017 Surface Construction Supervisor SANUEL Z. CRAWFORD SS 24686 1986 Shaft & Slope Examiner Foreman STEVE C. CRAWFORD S 228 84 1984 Shaft & Slope Examiner Foreman TERRY J. CRAWFORD S 3615 02 2002 Surface Mine Foreman LEWIS C. CRAWFORD, JR. S 87 78 1978 Surface Mine Foreman FREDERICK S. CREANY SC325 83 1983 Surface Construction Supervisor CHRISTOPHER A. CREECH S 5498 18 2018 Surface Mine Foreman TIMOTHY A. CREMEANS S 3804 04 2004 Surface Mine Foreman WILLIS H. CREW S 1248 80 1980 Surface Mine Foreman ROBERT E. CRIDER, JR S 5521 18 2018 Surface Mine Foreman JOHN C. CRIMM, JR. SC138 82 1982 Surface Construction Supervisor TIMOTHY L. CRINER SC 3157 20 2020 Surface Construction Supervisor DANIEL M. CRISLIP S 5303 15 2015 Surface Mine Foreman WESLEY CRISLIP S 4769 10 2010 Surface Mine Foreman WILLIE E. CRISP S 1467 81 1981 Surface Mine Foreman BRUCE L. CRISS S 840 79 1979 Surface Mine Foreman CHARLES SAMUEL CRISS S 462 79 1979 Surface Mine Foreman ELDEN J. CRISS S 3740 03 2003 Surface Mine Foreman JAMES G. CRISS SC 2114 01 2001 Surface Construction Supervisor HOWARD DERYL CRIST S 275 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOSEPH CRIST SC 2556 07 2007 Surface Construction Supervisor STEPHEN R. CRIST SC 2759 10 2010 Surface Construction Supervisor JACKIE D. CRIST, JR. S 3202 97 1997 Surface Mine Foreman DAVID L. CRITCHFIELD S 186084 1984 Surface Mine Foreman HAROLD C. CRITES, JR. SC105 82 1982 Surface Construction Supervisor FREDERICK B. CROCKETT SC 2212 03 2003 Surface Construction Supervisor ALEX J. CROFT JR. SS 115 18 2018 Shaft and Slope Superintendent DANIEL S. CROOKS SS 42 05 2005 Shaft and Slope Superintendent MILTON G. CROOKSHANKS SC780 85 1985 Surface Construction Supervisor MICHAEL L. CROSS S 1126 79 1979 Surface Mine Foreman VACHEL V. CROSS S 1091 79 1979 Surface Mine Foreman DONALD G. CROSS, JR. SC1169 94 1994 Surface Construction Supervisor BRADFORD CROUCH S 5005 11 2011 Surface Mine Foreman JAMES E. CROUCH SC1257 95 1995 Surface Construction Supervisor MARVIN M. CROUCH S 1323 80 1980 Surface Mine Foreman MARVIN M. CROUCH SS 95 76 0 Shaft & Slope Examiner Foreman GILFORD K. CROWE S 2407 89 1989 Surface Mine Foreman GILFORD K. CROWE SC 2009 99 1999 Surface Construction Supervisor BENNY WAYNE CROY S 590 79 1979 Surface Mine Foreman JOSHUA G. CROY S 4908 11 2011 Surface Mine Foreman CHESTER R. CRUM S 2707 91 1991 Surface Mine Foreman DAVID A. CRUM S 5399 17 2017 Surface Mine Foreman DONALD H. CRUM SC1461 95 1995 Surface Construction Supervisor GREGORY C. CRUM S 5398 17 2017 Surface Mine Foreman MICHAEL F. CRUNY SC870 86 1986 Surface Construction Supervisor HERBERT K. CRUSE, JR. S 2641 91 1991 Surface Mine Foreman THOMAS R. CULBERTSON S 2808 92 1992 Surface Mine Foreman LARRY S. CULLOP S 369 79 1979 Surface Mine Foreman RICHARD L. CUMBRIDGE S 5358 16 2016 Surface Mine Foreman ROBERT CUMER SC 2028 99 1999 Surface Construction Supervisor CARL W. CUMMINGS S 986 79 1979 Surface Mine Foreman JASON K. CUMMINGS SC 2305 05 2005 Surface Construction Supervisor KEITH W. CUMMINGS, SR. S 1456 81 1981 Surface Mine Foreman WADE L. CUMPSTON SC1756 97 1997 Surface Construction Supervisor CARL J. CUNNINGHAM S 721 79 1979 Surface Mine Foreman CHARLES E. CUNNINGHAM SS 18880 1980 Shaft & Slope Examiner Foreman CHARLES V. CUNNINGHAM S 1247 80 1980 Surface Mine Foreman CHARLES W. CUNNINGHAM SC247 82 1982 Surface Construction Supervisor FRANK O. CUNNINGHAM S 703 79 1979 Surface Mine Foreman JAMES M. CUNNINGHAM SS 286 93 1993 Shaft & Slope Examiner Foreman PATRICK H. CUNNINGHAM S 702 79 1979 Surface Mine Foreman RANDALL P. CUNNINGHAM SC1446 95 1995 Surface Construction Supervisor RIC L. CUNNINGHAM SC 1915 98 1998 Surface Construction Supervisor ROBERT T. CUNNINGHAM SS 10577 0 Shaft & Slope Examiner Foreman CALVIN C. CURRENCE S 3916 05 2005 Surface Mine Foreman GARY A. CURRENCE S 1504 81 1981 Surface Mine Foreman DONALD H. CURRIER SS 17279 1979 Shaft & Slope Examiner Foreman BILLY R. CURRY S 1081 A 2007 Asst. Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CHARLES V. CURRY S 957 79 1979 Surface Mine Foreman JUSTIN L. CURRY S 5020 12 2012 Surface Mine Foreman PAUL C. CURRY SC1383 95 1995 Surface Construction Supervisor RICHARD K. CURRY S 2563 90 1990 Surface Mine Foreman THOMAS L. CURRY S 1969 84 1984 Surface Mine Foreman HERBERT M. CURRY JR. SC375 83 1983 Surface Construction Supervisor WILLIAM J. CURRY, JR. S 1379 80 1980 Surface Mine Foreman Rodney L. Curtis S 1086 79 1979 Surface Mine Foreman HARLEY PAUL CURTO S 406 79 1979 Surface Mine Foreman DONALD A. CUSSINS S 2046 85 1985 Surface Mine Foreman GREGORY D. CUSSINS S 2052 85 1985 Surface Mine Foreman EDWARD J. CUSTER SC 2289 05 2005 Surface Construction Supervisor Scott W. Custer S 2176 87 1987 Surface Mine Foreman CHARLES LEE CUTLIP S 754 79 1979 Surface Mine Foreman JAMES B. CUTLIP S 5208 14 2014 Surface Mine Foreman MICHAEL K. CUTLIP S 2859 92 1992 Surface Mine Foreman MICHAEL K. CUTLIP SC365 83 1983 Surface Construction Supervisor ROGER L. CUTLIP S 2643 91 1991 Surface Mine Foreman WILLIAM K. CUTLIP S 495 79 1979 Surface Mine Foreman ALLAN L. CUTRIGHT S 1184 79 1979 Surface Mine Foreman FLOYD M. CUTRIGHT SC1494 96 1996 Surface Construction Supervisor STEVEN B. CVECHKO SC 2788 11 2011 Surface Construction Supervisor JOHN S. CVECHKO, III SC 2635 08 2008 Surface Construction Supervisor BRIAN A. CYRUS SC 2961 13 2013 Surface Construction Supervisor JAMES L. CYRUS S 2710 91 1991 Surface Mine Foreman JAMES L. CYRUS SC983 92 1992 Surface Construction Supervisor RICHARD A. CYRUS S 5206 13 2013 Surface Mine Foreman FRANK F. CZULEWICZ SC1195 95 1995 Surface Construction Supervisor FRANK D'AMICO SC196 82 1982 Surface Construction Supervisor CARMEN D'ANGELO S 2331 88 1988 Surface Mine Foreman VINCENT F S 5312 15 2015 Surface Mine Foreman DWAYNE D. DAGNER SC 2750 10 2010 Surface Construction Supervisor JONATHAN DAHLKE S 4074 06 2006 Surface Mine Foreman HARLAN D. DAHMER S 576 79 0 Surface Mine Foreman HAROLD D. DAILEY S 954 79 1979 Surface Mine Foreman BERYL W. DALLAS SC602 83 1983 Surface Construction Supervisor CHARLES E. DALTON S 1805 83 1983 Surface Mine Foreman DARRELL A. DALTON S 1417 81 1981 Surface Mine Foreman RICHARD A. DALTON S 1689 82 1982 Surface Mine Foreman RICHARD W. DALTON SC 2282 04 2004 Surface Construction Supervisor RONALD D. DALTON S 2590 90 1990 Surface Mine Foreman THOMAS R. DALTON S 938 79 1979 Surface Mine Foreman CARY S. DAMERON S 5429 17 2017 Surface Mine Foreman CARY S. DAMERON S 1178 A 2016 Asst. Surface Mine Foreman DON R. DAMRON S 4186 06 2006 Surface Mine Foreman HENRY L. DAMRON S 1991 85 1985 Surface Mine Foreman JOHNNY R. DAMRON S 4572 08 2008 Surface Mine Foreman MARK A. DAMRON S 4702 09 2009 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ROGER D. DAMRON S 1378 80 1980 Surface Mine Foreman RONALD L. DAMRON S 518 79 1979 Surface Mine Foreman TRACY A. DAMRON S 3583 02 2002 Surface Mine Foreman CECIL D. DANIEL S 2938 93 1993 Surface Mine Foreman DAN D. DANIEL S 1096 79 1979 Surface Mine Foreman DEWEY N. DANIEL SC 2404 05 2005 Surface Construction Supervisor JAMES R. DANIEL S 769 79 1979 Surface Mine Foreman JERRY L. DANIEL S 3776 04 2004 Surface Mine Foreman KENNETH R. DANIEL S 3355 99 1999 Surface Mine Foreman SANDRUS E. DANIEL S 2505 90 1990 Surface Mine Foreman JOSEPH R. DANIEL JR. S 3983 05 2005 Surface Mine Foreman EDWARD L. DANIEL, JR. S 221 78 1978 Surface Mine Foreman TERRY R. DANIEL, JR. S 5061 12 2012 Surface Mine Foreman TERRY R. DANIEL, JR. S 1084 A 2007 Asst. Surface Mine Foreman CHARLES J. DANIELS SC887 87 0 Surface Construction Supervisor CLYDE DANIELS SC613 83 1983 Surface Construction Supervisor DOCK L. DANIELS S 2523 90 1990 Surface Mine Foreman GARY W. DANIELS S 1163 79 1979 Surface Mine Foreman HAROLD D. DANIELS S 2446 89 1989 Surface Mine Foreman JAMES M DANIELS SC 1884 98 1998 Surface Construction Supervisor JERRY L. DANIELS S 951 79 1979 Surface Mine Foreman JOHNNY DANIELS SS 49 06 2006 Shaft and Slope Superintendent JOHNNY L. DANIELS SS301 97 1997 Shaft & Slope Examiner Foreman ROY L. DANIELS S 1777 83 1983 Surface Mine Foreman SONNY L. DANIELS S 4869 10 2010 Surface Mine Foreman STEPHEN DANIELS SC 2653 08 2008 Surface Construction Supervisor WILLIAM B. DANIELS S 4078 06 2006 Surface Mine Foreman ALLAN J. DANTES S 3357 99 1999 Surface Mine Foreman NEIL DANZIGER SC 2027 99 1999 Surface Construction Supervisor MELVIN L. DARBY S 3670 96 1996 Surface Mine Foreman JAMES E. DARLING SC242 82 1982 Surface Construction Supervisor GARY A. DARNELL SC1574 96 1996 Surface Construction Supervisor LEONARD E. DARRAH SC 574 83 1983 Surface Construction Supervisor CLINTON DAUGHERTY S 1838 84 1984 Surface Mine Foreman EVERETT D. DAUGHERTY S 927 79 1979 Surface Mine Foreman JAMES F. DAUGHERTY SC 2452 06 2006 Surface Construction Supervisor RAY DAUGHERTY S 3259 98 1998 Surface Mine Foreman ANDRE R. DAVET SC080 82 1982 Surface Construction Supervisor HERBERT A. DAVIDSON SC1323 95 1995 Surface Construction Supervisor JAMES DAVIDSON SC 2172 02 2002 Surface Construction Supervisor WILLMONT M. DAVIER SC1206 95 1995 Surface Construction Supervisor ARNETT W. DAVIS S 1338 80 1980 Surface Mine Foreman BRIAN K. DAVIS SC 2634 08 2008 Surface Construction Supervisor BRUCE E. DAVIS SS 16679 1979 Shaft & Slope Examiner Foreman CAMRON S. DAVIS SC 2330 05 2005 Surface Construction Supervisor CURTIS E. DAVIS S 1965 84 1984 Surface Mine Foreman DAMON O. DAVIS S 5210 14 2014 Surface Mine Foreman DAMON O. DAVIS S 1165 A 2011 Asst. Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DARRELL DAVIS S 3576 02 2002 Surface Mine Foreman DELBERT L. DAVIS SC 1876 98 1998 Surface Construction Supervisor DICKIE J. DAVIS S 1105 79 1979 Surface Mine Foreman EARL C. DAVIS S 4854 10 2010 Surface Mine Foreman EARL E. DAVIS S 3716 03 2003 Surface Mine Foreman EARL E. DAVIS S 1023 A 2002 Asst. Surface Mine Foreman EARL W. DAVIS S 731 79 1979 Surface Mine Foreman EARL JACKSON DAVIS S 1109 79 1979 Surface Mine Foreman ERIC E. DAVIS S 4555 08 2008 Surface Mine Foreman FRANKIE D. DAVIS SC 2064 00 2000 Surface Construction Supervisor GARY E. DAVIS S 2671 91 1991 Surface Mine Foreman GARY R. DAVIS S 3074 95 1995 Surface Mine Foreman GLENNIE E. DAVIS S 4735 10 2010 Surface Mine Foreman HERBERT A. DAVIS SC055 82 1982 Surface Construction Supervisor HERMAN W. DAVIS S 4721 09 2009 Surface Mine Foreman JACK L. DAVIS SC1534 96 1996 Surface Construction Supervisor JACK L. DAVIS SC1787 97 1997 Surface Construction Supervisor JAMES D. DAVIS S 2689 91 1991 Surface Mine Foreman JAMES O. DAVIS S 3391 00 2000 Surface Mine Foreman JAMES O. DAVIS SC967 91 1991 Surface Construction Supervisor JAMES S. DAVIS SC1417 95 1995 Surface Construction Supervisor JERRY DAVIS S 2119 86 1986 Surface Mine Foreman JERRY W. DAVIS S 5473 18 2018 Surface Mine Foreman JOEL K. DAVIS S 2936 93 1993 Surface Mine Foreman KURT L. DAVIS S 2363 88 1988 Surface Mine Foreman LENNIS R. DAVIS SC 1943 98 1998 Surface Construction Supervisor LINUS DAVIS s 3215 97 1997 Surface Mine Foreman MARTIN S. DAVIS S 4635 09 2009 Surface Mine Foreman MATTHEW D. DAVIS SC 2483 06 2006 Surface Construction Supervisor MICHAEL C. DAVIS S 3365 00 2000 Surface Mine Foreman NATHAN L. DAVIS SC 3065 17 2017 Surface Construction Supervisor NORMAN E. DAVIS S 2423 89 1989 Surface Mine Foreman NORMAN E. DAVIS S 1038 79 1979 Surface Mine Foreman ROBERT P. DAVIS S 808 79 1979 Surface Mine Foreman ROGER D. DAVIS S 4328 07 2007 Surface Mine Foreman RONDAL W. DAVIS SC 1951 98 1998 Surface Construction Supervisor RYAN E. DAVIS SC 3126 19 2019 Surface Construction Supervisor SHAWN W. DAVIS S 5494 18 2018 Surface Mine Foreman STEPHEN R. DAVIS SC 2819 11 2011 Surface Construction Supervisor TONY K. DAVIS SC 3002 14 2014 Surface Construction Supervisor WILLIAM C. DAVIS SC 2838 11 2011 Surface Construction Supervisor WILLIAM D. DAVIS S 4840 10 2010 Surface Mine Foreman KENNETH D. DAVIS JR S 5151 13 2013 Surface Mine Foreman Arnold Davis, Jr. S 2317 88 1988 Surface Mine Foreman JAMES O. DAVIS, JR. S 3050 95 1995 Surface Mine Foreman ROLAND DAVIS, JR. S 2415 89 1989 Surface Mine Foreman JOSEPH E. DAVISON SC474 83 1983 Surface Construction Supervisor CARL D. DAVISSON S 1175 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ALLEN A. DAWSON SC 2644 08 2008 Surface Construction Supervisor CHARLES T. DAWSON S 4175 06 2006 Surface Mine Foreman EUGENE L. DAWSON S 807 79 1979 Surface Mine Foreman EUGENE L. DAWSON SC443 83 1983 Surface Construction Supervisor GREGORY G. DAWSON S 1940 84 1984 Surface Mine Foreman KARL R. DAWSON, III S 1795 83 1983 Surface Mine Foreman MICHAEL D. DAY S 3296 98 1998 Surface Mine Foreman PATRICK RALPH DAY S 1386 80 1980 Surface Mine Foreman BRIAN J. DEAH SC 2455 06 2006 Surface Construction Supervisor DAYTON D. DEAL S 3753 04 2004 Surface Mine Foreman DAYTON D. DEAL S 1043 A 2003 Asst. Surface Mine Foreman ERNEST E. DEAL S 2551 90 1990 Surface Mine Foreman JASON DEAL S 4473 08 2008 Surface Mine Foreman RAY GLENN DEAL S 393 79 1979 Surface Mine Foreman GEORGE D. DEAN S 4863 10 2010 Surface Mine Foreman GREGORY O. DEAN S 1884 84 1984 Surface Mine Foreman KEVIN J. DEAN SC 2523 07 2007 Surface Construction Supervisor LARRY A. DEAN SC726 84 1984 Surface Construction Supervisor LOWELL DEAN SC 2815 11 2011 Surface Construction Supervisor OKEY DEAN S 104 78 1978 Surface Mine Foreman THOMAS DEAN S 2577 90 1990 Surface Mine Foreman LEWIS F. DEANGELIS JR. SS 15 03 2003 Shaft and Slope Superintendent LEWIS F. DEANGELIS JR. SS 339 03 2003 Shaft & Slope Examiner Foreman DANNY W. DEATON S 3194 97 1997 Surface Mine Foreman KEVIN DEATON S 4411 08 2008 Surface Mine Foreman REYNOLDS DEATON S 1259 80 1980 Surface Mine Foreman MARIO DeBASTIANE S 1697 82 1982 Surface Mine Foreman LARRY E. DEBERRY S 2681 91 1991 Surface Mine Foreman WADE E. DEBERRY S 3384 00 2000 Surface Mine Foreman MITCHELL W. DEBOARD SC 1863 98 1998 Surface Construction Supervisor ROBERT W. DECK S 1604 82 1982 Surface Mine Foreman CHRISTOPHER L. DECKER SC 3053 17 2017 Surface Construction Supervisor DARRELL A. DEEL S 5252 14 2014 Surface Mine Foreman RICHARD L. DEEL SS 37 05 2005 Shaft and Slope Superintendent ZACHARY D. DEEL S 5412 17 2017 Surface Mine Foreman SHAWN D. DEER S 3526 01 2001 Surface Mine Foreman PHILLIP J. DeFADE S 1193 79 1979 Surface Mine Foreman THOMAS E. DEHART S 2345 88 1988 Surface Mine Foreman BRUCE DEITZ S 4883 11 2011 Surface Mine Foreman CHRISTOPHER D. DEITZ S 5119 12 2012 Surface Mine Foreman TERRENCE D. DEL BOSCO S 3196 97 1997 Surface Mine Foreman T. DONALD DELBOSCO S 3196 97 1997 Surface Mine Foreman SIDNEY L. DELBRIDGE S 398 79 1979 Surface Mine Foreman JOHN L. DELLI-GATTI, JR. S 1658 82 1982 Surface Mine Foreman JOHN L. DELLIGATTI, JR. S 1659 82 1982 Surface Mine Foreman ANTHONY W. DELONG S 4197 06 2006 Surface Mine Foreman ANTHONY W. DELONG SC 2448 06 2006 Surface Construction Supervisor BRADLEY DELONG S 3523 01 2001 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE HOMER D. DELONG S 786 79 1979 Surface Mine Foreman ROBERT LEE DELP JR. S 225 78 1978 Surface Mine Foreman DARYL V. DELRE SC 2529 07 2007 Surface Construction Supervisor THOMAS A. DELSANDRO SC806 85 1985 Surface Construction Supervisor JEFF A. DEMOSS S 4673 09 2009 Surface Mine Foreman ARTHUR W. DEMPSEY S 333 79 1979 Surface Mine Foreman DOUGLAS M. DEMPSEY S 2346 88 1988 Surface Mine Foreman GERALD R. DEMPSEY SC 2670 09 2009 Surface Construction Supervisor LEWIS E. DEMPSEY S 2258 88 1988 Surface Mine Foreman LEWIS E. DEMPSEY S 2258 26 1988 Asst. Surface Mine Foreman PAUL D. DEMPSEY S 3514 01 2001 Surface Mine Foreman RONALD H. DEMPSEY S 2995 94 1994 Surface Mine Foreman DANIEL L. DENNISON SC1561 96 1996 Surface Construction Supervisor GARY M. DENNISON S 2961 94 1994 Surface Mine Foreman DAVID W. DENNISON, JR. S 4079 06 2006 Surface Mine Foreman JOHN A. DENNY S 482 79 1979 Surface Mine Foreman JAMES E. DENO S 3148 96 1996 Surface Mine Foreman DOUGLAS R. DENT S 4307 07 2007 Surface Mine Foreman JOHN A. DEPASQUALE S 5310 15 2015 Surface Mine Foreman ROY A. DEPUE SC407 83 1983 Surface Construction Supervisor WILLIAM S. DERAWAY SC1437 95 1995 Surface Construction Supervisor LARRY W. DERBERRY S 1759 83 1983 Surface Mine Foreman LARRY W. DERRIX S 5500 18 2018 Surface Mine Foreman GERALD H. DESKINS S 2001 85 1985 Surface Mine Foreman JACK D. DESKINS S 2571 90 1990 Surface Mine Foreman KENNETH R. DESKINS S3244 97 1997 Surface Mine Foreman MATTHEW W. DESKINS S 5347 16 2016 Surface Mine Foreman RUSSELL L. DESKINS S 3443 01 2001 Surface Mine Foreman ARTHUR D. DESROCHER S 3008 94 1994 Surface Mine Foreman KENT R. DESROCHER S 3398 00 2000 Surface Mine Foreman JOSEPH H. DESTRO SC005 82 1982 Surface Construction Supervisor THOMAS D. DETAMORE S 2819 92 1992 Surface Mine Foreman HAROLD E. DETWILER SC162 82 1982 Surface Construction Supervisor DENNIS D. DEVER S 762 79 1979 Surface Mine Foreman TRAECI C. DEVERAUX SC 3130 19 2019 Surface Construction Supervisor TRAECI C. FLETCHER SS 299 96 1996 Shaft & Slope Examiner Foreman DONALD P. DEVORRIS SC146 82 1982 Surface Construction Supervisor CHARLES A. DEVRIES S 3337 99 1999 Surface Mine Foreman EUGENE DEWEES SC 2998 14 2014 Surface Construction Supervisor ARTHUR E. DEWEESE S 691 79 1979 Surface Mine Foreman CARL D. DEWEESE S 1429 81 1981 Surface Mine Foreman GARY D. DeWERFF SC 534 83 1983 Surface Construction Supervisor ARCHIE A. DEWITT S 1866 84 1984 Surface Mine Foreman ERNEST DIAL S 1806 83 1983 Surface Mine Foreman JAMES E. DIALS SC 2719 10 2010 Surface Construction Supervisor SHAWN R. DIALS S 5632 20 2020 Surface Mine Foreman ROBERT C. DICE SS 12177 0 Shaft & Slope Examiner Foreman ROBERT P. DICE SC1623 96 1996 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE AARON L. DICKENS S 4059 06 2006 Surface Mine Foreman ANTHONY S. DICKENS SC173 82 1982 Surface Construction Supervisor CHARLES E. DICKENS SC1303 95 1995 Surface Construction Supervisor DEMPSEY DICKENS SC 2507 06 2006 Surface Construction Supervisor MATTHEW DICKENS SC 2648 08 2008 Surface Construction Supervisor WILLIAM D. DICKENS S 4227 06 2006 Surface Mine Foreman WILLIAM D. DICKENS S 1013 A 2001 Asst. Surface Mine Foreman JOE DICKENSON SC 2084 01 2001 Surface Construction Supervisor BRANDON J. DICKERSON S 5537 18 2018 Surface Mine Foreman JAMES K. DICKERSON SC 2622 08 2008 Surface Construction Supervisor BARRY G. DICKEY SS 226 83 1983 Shaft & Slope Examiner Foreman THOMAS I. DICKEY SC631 83 1983 Surface Construction Supervisor JACK L. DICKSON SC307 83 1983 Surface Construction Supervisor JOSEPH W. DICLARO S 1449 81 1981 Surface Mine Foreman RAYMOND P. DIEGERT, SR. SC1794 97 1997 Surface Construction Supervisor RUDOLF H. DIEPHOLZ SC 2281 04 2004 Surface Construction Supervisor JOHN DIFABBIO S 657 79 1979 Surface Mine Foreman JOHN M. DILDINE S 2283 88 1988 Surface Mine Foreman JAMES R. DILLIE, JR. SS 370 05 2005 Shaft & Slope Examiner Foreman DONALD L. DILLINGER SC 2477 06 2006 Surface Construction Supervisor DAVID M. DILLON SC 1918 98 1998 Surface Construction Supervisor JACK H. DILLON 1128 79 0 Surface Mine Foreman JAMES R. DILLON S 2060 85 1985 Surface Mine Foreman JEFF DILLON SC1411 95 1995 Surface Construction Supervisor JESSIE L. DILLON S 1421 81 1981 Surface Mine Foreman PATRICK L. DILLON S 5541 18 2018 Surface Mine Foreman RICHARD J. DILLON S 106 78 1978 Surface Mine Foreman DAVID A. DILLOW SC 3060 17 2017 Surface Construction Supervisor DENNIS R. DILLOW S 2579 90 1990 Surface Mine Foreman DONALD L. DILLOW S 5268 14 2014 Surface Mine Foreman MICHAEL A. DILLOW SC1397 95 1995 Surface Construction Supervisor BENNY DIMASCIO S 1734 83 1983 Surface Mine Foreman DAVID C. DINGESS SC1274 95 1995 Surface Construction Supervisor DELMAS R. DINGESS SC752 84 1984 Surface Construction Supervisor DONALD R. DINGESS S 4647 09 2009 Surface Mine Foreman GAIL DINGESS S 131 78 1978 Surface Mine Foreman JENNINGS L. DINGESS S 3428 00 2000 Surface Mine Foreman JERRY A. DINGESS S 5621 19 2019 Surface Mine Foreman JOSHUA D. DINGESS S 4072 06 2006 Surface Mine Foreman LESLIE A. DINGESS SC1251 95 1995 Surface Construction Supervisor ROMIE M. DINGESS SC1252 95 1995 Surface Construction Supervisor JENNINGS L. DINGESS II S 5646 20 2020 Surface Mine Foreman KENDALL R. DINGESS, JR. S 3856 04 2004 Surface Mine Foreman DEAN B. DINGUS SC 3096 18 2018 Surface Construction Supervisor FRANK H. DIPPEL S 622 79 1979 Surface Mine Foreman WILLIAM A. DIRICO, JR. S 2315 88 1988 Surface Mine Foreman JAMES R. DIX SC 2059 00 2000 Surface Construction Supervisor DANNY R. DIX, JR. SC1138 94 1994 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE BILLY J. DIXON S 496 79 1979 Surface Mine Foreman HERMAN R. DIXON S 1912 84 1984 Surface Mine Foreman STEVEN C. DIXON S 344 79 1979 Surface Mine Foreman JOHN W. DIXON III S 5544 18 2018 Surface Mine Foreman GAINES H. DIXON, JR. SC 6 82 1982 Surface Construction Supervisor JEFFREY E. DIXON, JR. SC 2827 11 2011 Surface Construction Supervisor JOSHUA DOBBINS S 4712 09 2009 Surface Mine Foreman RICHARD J. DOBBINS SC 2007 99 1999 Surface Construction Supervisor RICHARD A. DOBBS SC 2047 00 2000 Surface Construction Supervisor FERLIN G. DOBSON S 3567 01 2001 Surface Mine Foreman DAVID B. DODRILL S 2945 93 1993 Surface Mine Foreman LARRY B. DODRILL S 5265 14 2014 Surface Mine Foreman TIMMY L. DODRILL SC 2882 12 2012 Surface Construction Supervisor BRADLEY K. DOERNER S 2955 93 1993 Surface Mine Foreman JOSEPH D. DOIG JR. SC 3111 19 2019 Surface Construction Supervisor LYLE S. DOLIN S 3320 98 1998 Surface Mine Foreman MATT A. DOLIN S 4263 07 2007 Surface Mine Foreman JOHN F. DOMER SC476 83 1983 Surface Construction Supervisor MANUEL DOMINGUES S 1181 79 1979 Surface Mine Foreman EPIFANIO M. DOMINGUEZ SC 2550 07 2007 Surface Construction Supervisor CLIFFORD G. DONAHOE SC1519 96 1996 Surface Construction Supervisor KEVIN D. DONAHOE SC1642 96 1996 Surface Construction Supervisor LOWELL T. DONAHOE S 516 79 1979 Surface Mine Foreman JAMES H. DONAHUE SC1188 94 1994 Surface Construction Supervisor JIMMIE D. DONAHUE S 2159 87 1987 Surface Mine Foreman PATRICK L. DONAHUE II S 3688 03 2003 Surface Mine Foreman IRA DONLEY S 244 78 1978 Surface Mine Foreman ROBERT H. DONLEY SC433 83 1983 Surface Construction Supervisor BILLY W. DONLEY, JR. S 4663 09 2009 Surface Mine Foreman ANGELO DONOFRIO SC244 82 1982 Surface Construction Supervisor CASSEY E. DOOLEY S 5495 18 2018 Surface Mine Foreman JENNINGS W. DOOLEY SS 58 74 1974 Shaft & Slope Examiner Foreman RONNIE J. DOOLEY S 3262 98 1998 Surface Mine Foreman DONALD DORAN S 4607 09 2009 Surface Mine Foreman CHRISTOPHER A. DORSEY S 5488 18 2018 Surface Mine Foreman GARY W. DORSEY S 1027 79 1979 Surface Mine Foreman ROBERT L. DORSEY S 3912 84 2005 Surface Mine Foreman ROBERT L. DORSEY JR. SC 1980 99 1999 Surface Construction Supervisor SAMUEL S. DORSEY,JR S 3960 05 2005 Surface Mine Foreman JAMES E. DOSS S 3348 99 1999 Surface Mine Foreman ROLAND B. DOSS S 2185 87 1987 Surface Mine Foreman BALLARD E. DOTEN, JR. S 270 79 1979 Surface Mine Foreman ALLEN H. DOTSON S 5295 15 2015 Surface Mine Foreman ARVIL D. DOTSON S 5492 18 2018 Surface Mine Foreman CRAIG D. DOTSON S 5196 13 2013 Surface Mine Foreman CRAIG D. DOTSON SC 2233 03 2003 Surface Construction Supervisor DALE O. DOTSON S 1722 82 1982 Surface Mine Foreman DARRIN D. DOTSON S 4151 06 2006 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DENNY A. DOTSON S 2818 92 1992 Surface Mine Foreman FREDRICK W. DOTSON S 4123 06 2006 Surface Mine Foreman GREGORY K. DOTSON S 4157 06 2006 Surface Mine Foreman HAROLD E. DOTSON S 3681 03 2003 Surface Mine Foreman JAMES A. DOTSON S 4637 09 2009 Surface Mine Foreman JIMMIE E. DOTSON S 2183 87 1987 Surface Mine Foreman JIMMY C. DOTSON S 2504 90 1990 Surface Mine Foreman JOHN D. DOTSON SC945 91 1991 Surface Construction Supervisor JOSEPH R. DOTSON SC255 82 1982 Surface Construction Supervisor MARK A. DOTSON S 3059 95 1995 Surface Mine Foreman STEVEN A. DOTSON S 4848 10 2010 Surface Mine Foreman TEDDY W. DOTSON S 5505 18 2018 Surface Mine Foreman THOMAS W. DOTSON S 3478 01 2001 Surface Mine Foreman DAVID A. DOTY SC466 83 1983 Surface Construction Supervisor IAN DOUGLAS S 4707 09 2009 Surface Mine Foreman MICHAEL C. DOVER SC 2308 05 2005 Surface Construction Supervisor MICHAEL K. DOVER SC 2311 05 2005 Surface Construction Supervisor JOSHUA R. DOWD SC 3106 18 2018 Surface Construction Supervisor RICKY DOWDER SC 2278 04 2004 Surface Construction Supervisor JERRY C. DOWLING SS 12477 0 Shaft & Slope Examiner Foreman ERIC SHANE DOWNEY S 3797 04 2004 Surface Mine Foreman JAMES C. DOWNEY S 1337 80 1980 Surface Mine Foreman MARK A. DOWNEY S 5469 18 2018 Surface Mine Foreman WILLIAM P. DOYLE, JR. SC588 83 1983 Surface Construction Supervisor ALLAN K. DOZIER SC1297 95 1995 Surface Construction Supervisor ALLEN K. DOZIER S 1656 82 1982 Surface Mine Foreman MICHAEL H. DOZIER SC 538 83 1983 Surface Construction Supervisor RONALD I. DRAKE SC1546 96 1996 Surface Construction Supervisor WILLIAM R. DRAKER JR. S 740 79 1979 Surface Mine Foreman JOHNY M. DRENNEN, JR. SC 2129 01 2001 Surface Construction Supervisor RICHARD W. DROPPLEMAN S 1896 84 1984 Surface Mine Foreman CHRISTOPHER G. DRVAR S 4204 06 2006 Surface Mine Foreman ROBERT C. DRYLIE S 4476 08 2008 Surface Mine Foreman ROBERT J. DRYLIE S 502 79 1979 Surface Mine Foreman ROBERT J. DRYLIE SC220 82 1982 Surface Construction Supervisor JAMES D. DUBA II S 4286 07 2007 Surface Mine Foreman RAYMOND G. DUBOIS SC699 83 1983 Surface Construction Supervisor ALLEN L. DUCKWORTH S 1065 79 1979 Surface Mine Foreman KEVIN DUCKWORTH SS 337 02 2002 Shaft & Slope Examiner Foreman RANDY O. DUDDING S 2234 87 1987 Surface Mine Foreman WILLIAM G. DUDDING SC942 91 1991 Surface Construction Supervisor TIMOTHY A. DUESING S 3917 05 2005 Surface Mine Foreman JOHN DUFFEY S 4916 11 2011 Surface Mine Foreman CORY L. DUFFIELD SS 384 09 2009 Shaft & Slope Examiner Foreman MICHAEL W. DUFFIELD S 2943 93 1993 Surface Mine Foreman CHARLES H. DUFOUR SC 1983 99 1999 Surface Construction Supervisor STEPHEN H. DULA S 2205 87 1987 Surface Mine Foreman CHARLES W. DULANEY S 1094 81 1981 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE LOWELL J. DULANEY S 643 79 1979 Surface Mine Foreman ROBERT A. DULIN SC1788 97 1997 Surface Construction Supervisor THOMAS L. DULIN SC 1927 98 1998 Surface Construction Supervisor ANDY J. DUMM SS 269 91 1991 Shaft & Slope Examiner Foreman JOHN T. DUMM SS 26691 1991 Shaft & Slope Examiner Foreman LEWIS DUMM SS 29495 1995 Shaft & Slope Examiner Foreman LEWIS DUMM SC321 83 1983 Surface Construction Supervisor MICHAEL A. DUMM SS 74 07 2007 Shaft and Slope Superintendent CHARLES C. DUNBAR S 2584 90 1990 Surface Mine Foreman BILLY R. DUNCAN SC1687 97 1997 Surface Construction Supervisor BRETT W. DUNCAN S 3214 97 1997 Surface Mine Foreman DENNIS P. DUNCAN SC248 82 1982 Surface Construction Supervisor DOUGLAS S. DUNCAN SC 2222 03 2003 Surface Construction Supervisor JAMES G. DUNCAN SS 85 08 2008 Shaft and Slope Superintendent JAMES G. DUNCAN SS 24486 1986 Shaft & Slope Examiner Foreman JAMES G. DUNCAN SC817 86 1986 Surface Construction Supervisor JOHN E. DUNCAN S 3558 01 2001 Surface Mine Foreman LARRY J. DUNCAN S 589 79 1979 Surface Mine Foreman LARRY J. DUNCAN S 4484 08 2008 Surface Mine Foreman ROY E. DUNCAN SC1117 94 1994 Surface Construction Supervisor JEREMY D. DUNFORD SC 3144 20 2020 Surface Construction Supervisor KENNETH C. DUNHAM SC1499 96 1996 Surface Construction Supervisor JESSE W. DUNLAP S 4113 06 2006 Surface Mine Foreman ROGER M. DUNLAP SC 2228 03 2003 Surface Construction Supervisor THOMAS F. DUNLAVY S 948 79 1979 Surface Mine Foreman JACE M. DUNLOP SC 2695 09 2009 Surface Construction Supervisor HOWARD D. DUNMIRE SC111 82 1982 Surface Construction Supervisor HOWARD D. DUNMIRE, JR. SC 2351 05 2005 Surface Construction Supervisor GODWIN P. DUNN SC355 83 1983 Surface Construction Supervisor JOHN L. DUNN S 366 79 1979 Surface Mine Foreman MICHAEL A. DUNN S 3078 95 1995 Surface Mine Foreman WILLIAM J. DUNN SC 2235 03 2003 Surface Construction Supervisor LLOYD DURAN S 4346 07 2007 Surface Mine Foreman CHARLES E. DURR S 536 79 1979 Surface Mine Foreman WILLIAM HENRY DURST S 377 79 1979 Surface Mine Foreman BRUCE A. DUSCH S 1995 85 1985 Surface Mine Foreman HAROLD B. DUTTON S 2575 90 1990 Surface Mine Foreman MICHAEL D. DUTTON S 5062 12 2012 Surface Mine Foreman BRYAN L. DUTY S 4409 08 2008 Surface Mine Foreman BRYANT L. DUTY SC1086 93 1993 Surface Construction Supervisor RANDALL L. DUTY SC 2155 02 2002 Surface Construction Supervisor WILLIAM H. DUTY S 1548 81 1981 Surface Mine Foreman MATTHEW J. DWORSKY S 5526 18 2018 Surface Mine Foreman O.R. DYCUS SC081 82 1982 Surface Construction Supervisor BRIAN D. DYE S 5160 13 2013 Surface Mine Foreman CLARENCE H. DYE S 4970 11 2011 Surface Mine Foreman DOUGLAS C. DYE SS 27 05 2005 Shaft and Slope Superintendent DOUGLAS C. DYE SS 364 05 2005 Shaft & Slope Examiner Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE GRATT J. DYE SC1822 97 1997 Surface Construction Supervisor RONALD G. DYE S 2109 86 1986 Surface Mine Foreman DURWIN L. DYER S 1427 81 1981 Surface Mine Foreman NORRIS D. DYER S 69 78 1978 Surface Mine Foreman WOODROW D. DYKES S 4922 11 2011 Surface Mine Foreman RAYMOND R. DYMOND S 3451 01 2001 Surface Mine Foreman ANDREW J. DYNYS SC 2459 06 2006 Surface Construction Supervisor EDWARD J. DZADONY SC473 83 1983 Surface Construction Supervisor WAYNE L. EADS SC851 86 1986 Surface Construction Supervisor BRANDON A. EAKLE SC 3149 20 2020 Surface Construction Supervisor CARL D. EARL SC 3120 19 2019 Surface Construction Supervisor STANLEY R. EARLY SC605 83 1983 Surface Construction Supervisor DANIEL D. EAST SC 2709 09 2009 Surface Construction Supervisor JAMES A. EAST SC626 83 1983 Surface Construction Supervisor JACKIE D. EASTER S 1173 79 1979 Surface Mine Foreman JACKIE D. EASTER SC684 83 1983 Surface Construction Supervisor JOHN S. EASTHAM SC772 85 1985 Surface Construction Supervisor WILLIAM F. EASTHAM SC583 83 1983 Surface Construction Supervisor RONA J. EASTMAN S 5194 13 2013 Surface Mine Foreman JOHN J. EBELT S 912 79 1979 Surface Mine Foreman RONALD E. EBERHART S 3992 05 2005 Surface Mine Foreman BRIAN E. EDDY SC 2913 13 2013 Surface Construction Supervisor DENZIL F. EDDY SC1126 94 1994 Surface Construction Supervisor GARY L. EDDY SC 2682 09 2009 Surface Construction Supervisor JACOB L. EDDY SC1127 94 1994 Surface Construction Supervisor ORA C. EDDY SC1128 94 1994 Surface Construction Supervisor RANDY L. EDDY SC1412 95 1995 Surface Construction Supervisor ROY L. EDDY S 621 79 1979 Surface Mine Foreman STANLEY D. EDDY SC1129 94 1994 Surface Construction Supervisor TAB F. EDDY SC1697 97 1997 Surface Construction Supervisor TERRY L. EDDY SC1588 96 1996 Surface Construction Supervisor JOHN W. EDGE S 841 79 1979 Surface Mine Foreman WESTON W. EDGE S 851 79 1979 Surface Mine Foreman DENNIS R. EDGELL SC 2357 05 2005 Surface Construction Supervisor GARY E. EDGELL SC1334 95 1995 Surface Construction Supervisor JAMES E. EDGELL SC1335 95 1995 Surface Construction Supervisor FREDRICK R. EDGELL II SC 2571 07 2007 Surface Construction Supervisor BOBBY D. EDMONDS S 3356 99 1999 Surface Mine Foreman BRIAN A. EDMONDS S 2654 91 1991 Surface Mine Foreman ROBERT M. EDMONDS S 5536 18 2018 Surface Mine Foreman WILLIAM L. EDMONDS S 1589 82 1982 Surface Mine Foreman WILLIAM F. EDMONDS, JR. S 2582 90 1990 Surface Mine Foreman DAVID L. EDNIE SC472 83 1983 Surface Construction Supervisor ANTHONY C. EDWARDS S 5102 12 2012 Surface Mine Foreman BRIAN F. EDWARDS S 4303 07 2007 Surface Mine Foreman EVANS EDWARDS S 3646 02 2002 Surface Mine Foreman GARY EDWARDS S 4671 09 2009 Surface Mine Foreman GARY A. EDWARDS S 1306 80 1980 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JASON H. EDWARDS S 4528 08 2008 Surface Mine Foreman KENNETH G. EDWARDS S 1056 79 1979 Surface Mine Foreman PHILLIP H. EDWARDS S 124 78 1978 Surface Mine Foreman TOBY P. EDWARDS S 2986 94 1994 Surface Mine Foreman JEFFREY L. EFAW SC1569 96 1996 Surface Construction Supervisor LARRY A. EFAW SC 2302 05 2005 Surface Construction Supervisor BILLY J. EGNOR S 4370 07 2007 Surface Mine Foreman RICHARD A. EGNOR S 2265 88 1988 Surface Mine Foreman THOMAS R. EHRENBERGER SC 2527 07 2007 Surface Construction Supervisor JAMES D. EHRENHART S 3004 94 1994 Surface Mine Foreman DAVID G. EIBEL S 1236 80 1980 Surface Mine Foreman ALBERT D. EICHHORN S 2327 88 1988 Surface Mine Foreman STACY L. EISENMAN S 5348 16 2016 Surface Mine Foreman FRANCIS EISENTROUT SC471 83 1983 Surface Construction Supervisor DENNIS C. ELBON S 1063 79 1979 Surface Mine Foreman FREDERICK V. ELBON S 1538 81 1981 Surface Mine Foreman FREDERICK V. ELBON SC 2350 05 2005 Surface Construction Supervisor EVERETTE J. ELDER S 1074 79 1979 Surface Mine Foreman DAVID L. ELDRIDGE S 5000 11 2011 Surface Mine Foreman FRANK A. ELK SC971 92 1992 Surface Construction Supervisor HAROLD R. ELKIN SC 1968 98 1998 Surface Construction Supervisor RICHARD B. ELKIN SC 1966 98 1998 Surface Construction Supervisor ADAM C. ELKINS SS 125 19 2019 Shaft and Slope Superintendent CHRIS ELKINS S 4664 09 2009 Surface Mine Foreman DENNIS G. ELKINS S 4255 07 2007 Surface Mine Foreman JEREMY L. ELKINS SC 2891 12 2012 Surface Construction Supervisor LARRY ELKINS S 4829 10 2010 Surface Mine Foreman MACK A. ELKINS SC048 82 1982 Surface Construction Supervisor PAUL ELKINS S 3021 94 1994 Surface Mine Foreman TIMOTHY D. ELKINS S 4063 06 2006 Surface Mine Foreman WILLIS ELKINS SC 2482 06 2006 Surface Construction Supervisor FRANK E. ELLER SC422 83 1983 Surface Construction Supervisor GLEN ELLER, JR. SS 134 78 0 Shaft & Slope Examiner Foreman CHARLES D. ELLIOTT SC074 82 1982 Surface Construction Supervisor EDDIE L. ELLIOTT SC011 82 1982 Surface Construction Supervisor GARY E. ELLIOTT S 3351 99 1999 Surface Mine Foreman JAMES L. ELLIOTT SC007 82 1982 Surface Construction Supervisor TONY R. ELLIOTT SC1549 96 1996 Surface Construction Supervisor BENNY F. ELLIS S 1137 79 1979 Surface Mine Foreman BERNIE M. ELLIS S 2550 90 1990 Surface Mine Foreman BRYAN K. ELLIS S 3838 04 2004 Surface Mine Foreman CHARLES P. ELLIS SS 26090 1990 Shaft & Slope Examiner Foreman CHRISTOPHER L. ELLIS S 3489 01 2001 Surface Mine Foreman DANA M. ELLIS S 4169 06 2006 Surface Mine Foreman DANNY R. ELLIS S 5314 15 2015 Surface Mine Foreman EUGENE ELLIS SC1174 94 1994 Surface Construction Supervisor JERRY L. ELLIS S 1532 81 1981 Surface Mine Foreman JOHN C. ELLIS S 887 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOHN L. ELLIS SC1486 95 1995 Surface Construction Supervisor KENNETH S. ELLIS S 1998 85 1985 Surface Mine Foreman LARRY S. ELLIS S 1444 81 1981 Surface Mine Foreman PATRICK M. ELLIS S 5388 16 2016 Surface Mine Foreman RANDY R. ELLIS SC 2416 06 2006 Surface Construction Supervisor RICHARD K. ELLIS S 375 79 1979 Surface Mine Foreman ROGER S. ELLIS S 3445 01 2001 Surface Mine Foreman TROY ELLIS SC711 84 1984 Surface Construction Supervisor WAYNE A. ELLIS S 2433 89 1989 Surface Mine Foreman BUELL E. ELLIS III S 4258 07 2007 Surface Mine Foreman ROBERT G. ELLIS, JR. S 1676 82 1982 Surface Mine Foreman ROGER S. ELLIS, JR. S 3486 01 2001 Surface Mine Foreman CHARLES L. ELLISON S 316 79 1979 Surface Mine Foreman CURTIS H. ELLISON S 1012 79 1979 Surface Mine Foreman DONALD H. ELLISON S 2151 87 1987 Surface Mine Foreman GERALD A. ELLISON S 4967 11 2011 Surface Mine Foreman JENNINGS K. ELLISON S 4329 07 2007 Surface Mine Foreman LARRY W. ELLISON SC1462 95 1995 Surface Construction Supervisor ROGER E. ELLISON SC1246 95 1995 Surface Construction Supervisor TOMMY J. ELLISON S 3999 05 2005 Surface Mine Foreman TRAVIS E. ELLISON, JR. SC159 82 1982 Surface Construction Supervisor DONALD R. ELMER S 1121 79 1979 Surface Mine Foreman CHARLES D. ELMORE SC591 83 1983 Surface Construction Supervisor KENNETH R. ELMORE SC 2430 06 2006 Surface Construction Supervisor ROGER M. ELMORE S 1625 82 1982 Surface Mine Foreman ANTHONY W. ELSWICK S 4234 06 2006 Surface Mine Foreman CHRISTOPHER J. ELSWICK S 1219 79 1979 Surface Mine Foreman GALE S. ELSWICK S 1483 81 1981 Surface Mine Foreman GALE S. ELSWICK SC1144 94 1994 Surface Construction Supervisor JERRY L. ELSWICK SS 15078 0 Shaft & Slope Examiner Foreman LARRY D. ELSWICK S 4340 07 2007 Surface Mine Foreman RANDALL S. ELSWICK S 5614 19 2019 Surface Mine Foreman RONALD O. ELSWICK SC239 82 1982 Surface Construction Supervisor DON A. ELTON SS 78 07 2007 Shaft and Slope Superintendent DOUGLAS M. ELY S 1198 79 1979 Surface Mine Foreman GEORGE T. EMCH SC1786 97 1997 Surface Construction Supervisor GARRISON L. EMERY S 3882 05 2005 Surface Mine Foreman JAMES A. EMERY S 3947 05 2005 Surface Mine Foreman JAMES P. ENDICOTT S 4746 10 2010 Surface Mine Foreman MICHAEL G. ENDICOTT S 3433 00 2000 Surface Mine Foreman JACK ENDICOTT, JR. S 4414 08 2008 Surface Mine Foreman JACK ENDICOTT, JR. S 1015 A 2001 Asst. Surface Mine Foreman DAVID H. ENGLAND SC 2414 06 2006 Surface Construction Supervisor DON C. ENGLAND SC 2624 08 2008 Surface Construction Supervisor JEFFREY L. ENGLAND S 3360 99 1999 Surface Mine Foreman MARTIN L. ENGLAND SC1462 95 1995 Surface Construction Supervisor NATHANIEL A. ENGLAND S 5127 12 2012 Surface Mine Foreman MICHAEL R. ENGLE S 3544 01 2001 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MELVIN E. ENOS SC 2151 01 2001 Surface Construction Supervisor DOUGLAS M. EPLING S 3112 95 1995 Surface Mine Foreman CHARLES D. EPPERLY S 1274 80 1980 Surface Mine Foreman MASON D. EPPERLY SC299 83 1983 Surface Construction Supervisor FLOYD D. EPPERSON SC793 85 1985 Surface Construction Supervisor FLOYD D. EPPERSON SC 79385 1985 Surface Construction Supervisor LESTER R. ERB S 5173 13 2013 Surface Mine Foreman MELVIN W. ERB S 2919 93 1993 Surface Mine Foreman LESTER R. ERB, III S 5474 18 2018 Surface Mine Foreman LEWIS W. ERNEST SC756 84 1984 Surface Construction Supervisor CHARLES ERNST SS 272 91 1991 Shaft & Slope Examiner Foreman CHARLES ERNST SC043 82 1982 Surface Construction Supervisor CRAIG S. ERWIN S 4957 11 2011 Surface Mine Foreman ERIC D. ERWIN S 4920 11 2011 Surface Mine Foreman NICK C. ERWIN SC305 83 1983 Surface Construction Supervisor ROBERT L. ERWIN SC1554 96 1996 Surface Construction Supervisor LARRY T. ESKEW S 1596 82 1982 Surface Mine Foreman DWIGHT O. ESTEP S 1540 81 1981 Surface Mine Foreman DWIGHT O. ESTEP SC1143 94 1994 Surface Construction Supervisor GREGORY R. ESTEP S 3305 98 1998 Surface Mine Foreman JASON D. ESTEP S 4711 09 2009 Surface Mine Foreman John L. Estep S 2383 89 1989 Surface Mine Foreman BILLY J. ESTEP, II S 3962 05 2005 Surface Mine Foreman COLLIE ESTEP, JR. SC191 82 1982 Surface Construction Supervisor MIKE R. ESTES S 2328 88 1988 Surface Mine Foreman ROBERT J. EUBANK S 704 79 1979 Surface Mine Foreman BRYAN W. EVANS S 3638 02 2002 Surface Mine Foreman CHARLES E. EVANS S 966 79 1979 Surface Mine Foreman CHARLES E. EVANS SC713 84 1984 Surface Construction Supervisor CHESTER C. EVANS S 680 79 1979 Surface Mine Foreman CHRISTOPER R. EVANS S 4405 08 2008 Surface Mine Foreman CLIFFORD L. EVANS S 2264 88 1988 Surface Mine Foreman DANIEL O. EVANS S 996 79 1979 Surface Mine Foreman EDWARD A. EVANS S 3648 03 2003 Surface Mine Foreman GARY WAYNE EVANS S 548 79 0 Surface Mine Foreman GLENN T. EVANS S 1913 84 1984 Surface Mine Foreman GREGORY L. EVANS SC 2395 05 2005 Surface Construction Supervisor HARPER C. EVANS S 94 78 1978 Surface Mine Foreman HARRY K. EVANS SC 2198 03 2003 Surface Construction Supervisor JOSHUA P. EVANS S 4305 07 2007 Surface Mine Foreman KENNETH L. EVANS SC 2573 08 2008 Surface Construction Supervisor LAWRENCE H. EVANS S 266 79 1979 Surface Mine Foreman LAWRENCE L. EVANS S 1891 84 1984 Surface Mine Foreman MARK D. EVANS SS 376 08 2008 Shaft & Slope Examiner Foreman MATT D. EVANS SC 2347 05 2005 Surface Construction Supervisor MICHAEL E. EVANS S 3627 02 2002 Surface Mine Foreman MICKIE C. EVANS SC 2866 12 2012 Surface Construction Supervisor REESE THOMAS JR EVANS S 549 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE RICHARD EVANS S 4223 06 2006 Surface Mine Foreman ROBERT E. EVANS S 4283 07 2007 Surface Mine Foreman ROBERT S. EVANS S 334 79 1979 Surface Mine Foreman WILLIAM A. EVANS SS 29194 1994 Shaft & Slope Examiner Foreman WILLIAM MELVIN EVANS S 1875 84 1984 Surface Mine Foreman KENNETH W. EVANS SR. S 2053 85 1985 Surface Mine Foreman DONALD E. EVERLY S3222 97 1997 Surface Mine Foreman TIMOTHY M. EVERSON S 4851 10 2010 Surface Mine Foreman GARY W. EWING S 2179 87 1987 Surface Mine Foreman FRANK L. EYE S 2051 85 1985 Surface Mine Foreman JOHN FABRICATORE SC 561 83 1983 Surface Construction Supervisor LIONEL R. FACEMIRE S 36 78 1978 Surface Mine Foreman OWEN FACEMIRE, JR. S 2976 94 1994 Surface Mine Foreman WILLIAM G. FAGAN SC1113 94 1994 Surface Construction Supervisor JAMES H. FAIN S 2187 87 1987 Surface Mine Foreman ROGER E. FAIN S 3600 02 2002 Surface Mine Foreman ROGER E. FAIN SC 2245 04 2004 Surface Construction Supervisor VIRGIL W. FAIN S 757 79 1979 Surface Mine Foreman JENNINGS FAIRCLOTH S 310 79 1979 Surface Mine Foreman JIMMY A. FAKE S 2193 87 1987 Surface Mine Foreman ROBERT A. FALA S 2214 87 1987 Surface Mine Foreman DONALD P. FALK S 3707 03 2003 Surface Mine Foreman NEAL D. FANHAUSER SS 369 05 2005 Shaft & Slope Examiner Foreman JAMIE D. FANNIN S 4173 06 2006 Surface Mine Foreman PAUL R. FANNIN S 3479 01 2001 Surface Mine Foreman PAUL R. FANNIN SC1647 96 1996 Surface Construction Supervisor EUGENE E. FANNING, JR. SC1400 95 1995 Surface Construction Supervisor WILILAM J. FARABAUGH SC367 83 1983 Surface Construction Supervisor ANDREW P. FARKAS S 1699 82 1982 Surface Mine Foreman AUDREY H. FARLEY SC1110 94 1994 Surface Construction Supervisor JOSEPH A. FARLEY S 2351 88 1988 Surface Mine Foreman MATTHEW R. FARLEY SC 2737 10 2010 Surface Construction Supervisor RUSH F. FARLEY S 2181 87 1987 Surface Mine Foreman RUSH H. FARLEY S 4126 06 2006 Surface Mine Foreman TOM B. FARLEY S 2869 92 1992 Surface Mine Foreman WILLIAM S. FARLEY SC797 85 1985 Surface Construction Supervisor FLOYD FARLEY JR S 3521 01 2001 Surface Mine Foreman DANIEL M. FARLEY, JR. S 3874 05 2005 Surface Mine Foreman WOODROW W. FARLEY, JR. S 2291 88 1988 Surface Mine Foreman ANDREW D. FARMER S 4211 06 2006 Surface Mine Foreman ANDREW D. FARMER SC 2238 03 2003 Surface Construction Supervisor EARL R. FARMER SC 2384 05 2005 Surface Construction Supervisor DOUGLAS B. FARNHAM SC 509 83 1983 Surface Construction Supervisor WESLEY D. FARRAR S 990 79 1979 Surface Mine Foreman DAVID FARRELL SC 2734 10 2010 Surface Construction Supervisor DONALD G. FARRIS SC 1994 99 1999 Surface Construction Supervisor FRANK FARRIS SC1276 95 1995 Surface Construction Supervisor RICHARD FARRIS SC1032 92 1992 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILLIAM P. FARTHING S 260 79 1979 Surface Mine Foreman LOUIS W. FAUBER S 2814 92 1992 Surface Mine Foreman DAVID FAULKNIER S 1164 A 2011 Asst. Surface Mine Foreman ROBERT L. FEATHERS SC 2905 13 2013 Surface Construction Supervisor RANDALL S. FEAZELL II SC 3016 15 2015 Surface Construction Supervisor GREG J. FEDCZAK SC 2821 11 2011 Surface Construction Supervisor CHARLES J. FELBER S 5371 16 2016 Surface Mine Foreman JACK R. FELTNER S 792 79 1979 Surface Mine Foreman GRANT W. FELTON JR SC 2873 12 2012 Surface Construction Supervisor JOHN VACARA FENNELL S 1070 79 1979 Surface Mine Foreman JOHN VACARA FENNELL II S 794 79 1979 Surface Mine Foreman CHARLES EMERY FENNER S 2188 87 1987 Surface Mine Foreman BARRY K. FERGUSON S 5060 12 2012 Surface Mine Foreman CURTIS FERGUSON S 181 78 1978 Surface Mine Foreman ELMER E. FERGUSON SC1392 95 1959 Surface Construction Supervisor GARY D. FERGUSON S 2598 91 1991 Surface Mine Foreman JOE FERGUSON S 1411 81 1981 Surface Mine Foreman JOHN W. FERGUSON SC137 82 1982 Surface Construction Supervisor LAWRENCE FERGUSON SC 3045 16 2016 Surface Construction Supervisor MARK E. FERGUSON S 3209 97 1997 Surface Mine Foreman RICHARD B. FERGUSON S 3460 01 2001 Surface Mine Foreman RICHARD B. FERGUSON SC862 86 1986 Surface Construction Supervisor ROGER D. FERGUSON S 4486 08 2008 Surface Mine Foreman ROGER F. FERGUSON S 4549 08 2008 Surface Mine Foreman WALTER FERGUSON SC432 83 1983 Surface Construction Supervisor WILLARD E. FERGUSON S 3364 00 2000 Surface Mine Foreman WILLARD E. FERGUSON S 1001 A 2000 Asst. Surface Mine Foreman RODNEY C. FERNANDEZ S 2996 94 1994 Surface Mine Foreman RODNEY C. FERNANDEZ SC1484 95 1995 Surface Construction Supervisor FRANK F. FERRARI SC869 86 1986 Surface Construction Supervisor ALLEN W. FERRELL SC 2214 03 2003 Surface Construction Supervisor CHARLES N. FERRELL SC1579 96 1996 Surface Construction Supervisor DANIEL D. FERRELL S 1142 79 1979 Surface Mine Foreman DAVID M. FERRELL SC1580 96 1996 Surface Construction Supervisor DONALD FERRELL S 4132 06 2006 Surface Mine Foreman DUSTIN L. FERRELL SC 3077 17 2017 Surface Construction Supervisor GEORGE C. FERRELL S 2266 88 1988 Surface Mine Foreman GEORGE T. FERRELL S 3997 05 2005 Surface Mine Foreman JAMES L. FERRELL SC1581 96 1996 Surface Construction Supervisor ROY O. FERRELL S 684 79 1979 Surface Mine Foreman SEAN A. FERRELL S 4834 10 2010 Surface Mine Foreman TONY A. FERRELL S 4835 10 2010 Surface Mine Foreman VERNON P. FERRELL SC1584 96 1996 Surface Construction Supervisor JAMES L. FERRELL II SC1582 96 1996 Surface Construction Supervisor ROGER FERRELL, JR. S 4310 07 2007 Surface Mine Foreman ERIK J. FERRINGER SC1605 96 0 Surface Construction Supervisor ERIK J. FERRINGER SC 160596 1996 Surface Construction Supervisor RICKY FERRIS, JR. S 4545 08 2008 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JACK W. FETSKO SC 2217 03 2003 Surface Construction Supervisor EARL D. FETTY S 1036 79 1979 Surface Mine Foreman WILLIAM A. FIELDHOUSE SS 70 06 2006 Shaft and Slope Superintendent WILLIAM A. FIELDHOUSE SS 287 93 1993 Shaft & Slope Examiner Foreman WILLIAM A. FIELDHOUSE SC1659 96 1996 Surface Construction Supervisor CARL FIELDS SC592 83 1983 Surface Construction Supervisor DALE E. FIELDS S 3933 05 2005 Surface Mine Foreman DELBERT J. FIELDS S 5069 12 2012 Surface Mine Foreman DOCTOR A. FIELDS SC227 82 1982 Surface Construction Supervisor HAROLD B. FIELDS SC 2451 06 2006 Surface Construction Supervisor JEFFREY R. FIELDS S-3246 97 1997 Surface Mine Foreman JOSHUA D. FIELDS SC 3026 15 2015 Surface Construction Supervisor RANDY C. FIELDS S 2289 88 1988 Surface Mine Foreman JAMES C. FIELDS, JR. SC1116 94 1994 Surface Construction Supervisor REATHER FIELDS, JR. S 3171 96 1996 Surface Mine Foreman GENE A. FIKE S 2055 85 1981 Surface Mine Foreman GENE A. FIKE SC1624 96 1996 Surface Construction Supervisor ANTHONY F. FILBERTO S 844 79 1979 Surface Mine Foreman ARNOLD D. FILLINGER S 395 79 1979 Surface Mine Foreman AARON M. FINCH SS 108 12 2012 Shaft and Slope Superintendent JEFFREY FINCH SS 359 04 2004 Shaft & Slope Examiner Foreman THOMAS E. FINCH SC 2100 01 2001 Surface Construction Supervisor KERMIT E. FINCHAM, DR. S 1170 79 1979 Surface Mine Foreman JAMES L. FINE SC 2943 13 2013 Surface Construction Supervisor JOHN W. FINE S 5227 14 2014 Surface Mine Foreman CARL R. FINK SC1780 97 1997 Surface Construction Supervisor DONNIE G. FINK S 4652 09 2009 Surface Mine Foreman RAYMOND E. FINK, JR. S 1629 82 1982 Surface Mine Foreman JAMES C. FINLEY SC 2628 08 2008 Surface Construction Supervisor JAMES M. FINLEY SC628 83 1983 Surface Construction Supervisor JOSHUA L. FINLEY S 5394 17 2017 Surface Mine Foreman JOSHUA L. FINLEY S 1171 A 2012 Asst. Surface Mine Foreman LAUNDELL G. FINLEY SC 2834 11 2011 Surface Construction Supervisor RALPH FINLEY, JR. SC644 83 1983 Surface Construction Supervisor RALPH FINLEY, JR. SC 64483 1983 Surface Construction Supervisor RONALD R. FINLEY, JR. S 4515 08 2008 Surface Mine Foreman ROBERT FINNEY SC1080 93 1993 Surface Construction Supervisor LEONARD G. FINSTER, JR. S 1153 79 1979 Surface Mine Foreman CARL R. FINT S 2680 91 1991 Surface Mine Foreman JOSEPH W. FINT S 2789 92 1992 Surface Mine Foreman FREDERICK L. FISCHER S 1460 81 1981 Surface Mine Foreman STEVE E. FISER S 999 79 1979 Surface Mine Foreman FRANK T. FISH S 1729 83 1983 Surface Mine Foreman CHARLES J. FISHER S 1741 83 1983 Surface Mine Foreman JAMES W. FISHER SC1840 97 1997 Surface Construction Supervisor JOHNATHON C. FISHER S 5433 17 2017 Surface Mine Foreman JOSEPH S. FISHER SC148 82 1982 Surface Construction Supervisor LARRY R. FISHER SC1130 94 1994 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOHN M. FITCH S 5486 18 2018 Surface Mine Foreman LAWRENCE A. FITCH SC264 82 1982 Surface Construction Supervisor ERICK D. FITCHPATRICK S 4273 07 2007 Surface Mine Foreman ERICK D. FITCHPATRICK S 1058 A 2005 Asst. Surface Mine Foreman WILLIS S. FITCHPATRICK S 4436 08 2008 Surface Mine Foreman BERNARD M. FITZPATRICK S 514 79 1979 Surface Mine Foreman DALE FITZPATRICK SC1041 92 1992 Surface Construction Supervisor RANDALL R. FITZPATRICK S 3503 01 2001 Surface Mine Foreman STEPHEN M. FITZPATRICK SC 2255 04 2004 Surface Construction Supervisor VIRGIL FITZPATRICK S 3508 01 2001 Surface Mine Foreman BASIL H. FITZWATER S 796 79 1979 Surface Mine Foreman JEROMY R. FITZWATER SC 2978 14 2014 Surface Construction Supervisor JOHN F. FITZWATER SC 3129 19 2019 Surface Construction Supervisor KARL K. FITZWATER S 2532 90 1990 Surface Mine Foreman ALVIE H. FITZWATER, JR. S 2793 92 1992 Surface Mine Foreman KEVIN R. FLANAGAN S 3969 05 2005 Surface Mine Foreman STERLEY C FLANAGAN, JR. S 3278 98 1998 Surface Mine Foreman JON D. FLEEMAN SC 2226 03 2003 Surface Construction Supervisor CHRISTOPHER B. FLEMING S 4620 09 2009 Surface Mine Foreman CHRISTOPHER K. FLEMING SC 2752 10 2010 Surface Construction Supervisor DOUGLAS R. FLEMING SC 2721 10 2010 Surface Construction Supervisor RAYMOND S. FLEMING SC 2072 00 2000 Surface Construction Supervisor ROGER L. FLEMING S 1475 81 1981 Surface Mine Foreman RONNIE K. FLEMING SC915 90 0 Surface Construction Supervisor SID FLEMING SC1643 96 0 Surface Construction Supervisor DANIEL B. FLESHER SC964 91 1991 Surface Construction Supervisor JEFFERSON L. FLESHER SC 2348 05 2005 Surface Construction Supervisor MATTHEW W. FLESHER SC 2560 07 2007 Surface Construction Supervisor ROGER D. FLESHMAN S 2382 89 1989 Surface Mine Foreman RONNIE L. FLETCHE S 4322 07 2007 Surface Mine Foreman ALEX FLETCHER S 5084 12 2012 Surface Mine Foreman CHRISTOPHER L. FLETCHER S 4853 10 2010 Surface Mine Foreman DAVID FLETCHER S 2540 90 1990 Surface Mine Foreman DENNIS L. FLETCHER S 5528 18 2018 Surface Mine Foreman GARY S. FLETCHER S 1011 A 2001 Asst. Surface Mine Foreman GERALD L. FLETCHER S 5254 14 2014 Surface Mine Foreman JIMMY FLETCHER S 2417 89 1989 Surface Mine Foreman JIMMY R. FLETCHER S 3764 04 2004 Surface Mine Foreman LACY N. FLETCHER S 2500 90 1990 Surface Mine Foreman LARRY E. FLETCHER S 3602 02 2002 Surface Mine Foreman LARRY V. FLETCHER S 4989 11 2011 Surface Mine Foreman RANDY FLETCHER S 3635 02 2002 Surface Mine Foreman VIRGIL FLETCHER S 1257 80 1980 Surface Mine Foreman WILLIAM D. FLETCHER S 2252 87 1987 Surface Mine Foreman WILLIAM L. FLETCHER S 1067 A 2006 Asst. Surface Mine Foreman HERMAN P. FLETCHER II S 5368 16 2016 Surface Mine Foreman JESSE FLETCHER, JR. S 5157 13 2013 Surface Mine Foreman RANDY FLIEHMAN SC 2729 10 2010 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE HAROLD T. FLINT S 978 79 1979 Surface Mine Foreman ROB L. FLINT SC1506 96 1996 Surface Construction Supervisor ROGER L. FLINT SC1507 96 1996 Surface Construction Supervisor PATRICK J. FLORA SC 2220 03 2003 Surface Construction Supervisor PATRICIO FLORES SC 2549 07 2007 Surface Construction Supervisor JOHN D. FLOWERS S2114 86 1986 Surface Mine Foreman MICHAEL E. FLOWERS S 4676 09 2009 Surface Mine Foreman FRANK E. FLOYD S 76 78 1978 Surface Mine Foreman GENE L. FLOYD SC1575 96 1996 Surface Construction Supervisor ROBERT L. FLOYD SC 2559 07 2007 Surface Construction Supervisor ALAN W. FLUHARTY SC1676 96 1996 Surface Construction Supervisor RICHARD A. FLUHARTY SC 2365 05 2005 Surface Construction Supervisor DONNIE W. FOGLE SC 2686 09 2009 Surface Construction Supervisor JAMES R. FOLEY SC415 83 1983 Surface Construction Supervisor ROBERT L. FOLEY SC1209 95 1995 Surface Construction Supervisor ROBERT R. FOLEY SC 3147 20 2020 Surface Construction Supervisor JAMES L.FOLEY JR SS 101 12 2012 Shaft and Slope Superintendent JAMES B. FOLTZ SC344 83 1983 Surface Construction Supervisor JERRY FONNER SC 2026 99 1999 Surface Construction Supervisor MARTIN D. FONNER SC 546 83 1983 Surface Construction Supervisor JAMES FORBES SC 3038 16 2016 Surface Construction Supervisor JOHN W. FORBES, JR. S 500 79 1979 Surface Mine Foreman HERSCHEL T FORD SC 1887 98 1998 Surface Construction Supervisor PATRICK V FORD SC 1897 98 1998 Surface Construction Supervisor RICHARD L. FORD S 180 78 1978 Surface Mine Foreman RODNEY L. FORD S 1987 85 1985 Surface Mine Foreman WALLACE A. FORD S 1284 80 1980 Surface Mine Foreman EDWARD A. FORDYCE SS 277 91 1991 Shaft & Slope Examiner Foreman JODY W. FORE SC 2374 05 2005 Surface Construction Supervisor MICHAEL S. FORE SC 510 83 1983 Surface Construction Supervisor DONALD E. FORMAN SS305 97 1997 Shaft & Slope Examiner Foreman JAMES R. FORMAN SC 2874 12 2012 Surface Construction Supervisor ROBERT R. FORMAN SC 2292 05 2005 Surface Construction Supervisor ANTHONY J. FORQUER SC 2984 14 2014 Surface Construction Supervisor DONALD R. FORQUER SC1654 96 1996 Surface Construction Supervisor GARY L. FORQUER SC1653 96 1996 Surface Construction Supervisor NICHOLAS R. FORQUER SC 2981 14 2014 Surface Construction Supervisor RICKY A. FORQUER SC1655 96 1996 Surface Construction Supervisor PHILIP C. FORSHEY S 5479 18 2018 Surface Mine Foreman RICHARD L. FORTH S 663 79 1979 Surface Mine Foreman ARNOLD E. FORTNER SC1380 95 1995 Surface Construction Supervisor WILLIS E. FORTNER SC1298 95 1995 Surface Construction Supervisor PAUL E. FORTNEY SC 3094 18 2018 Surface Construction Supervisor ROBERT L. FORTNEY SC 2946 13 2013 Surface Construction Supervisor ROGER D. FORTNEY S 995 79 1979 Surface Mine Foreman FREDERICK C. FOSHAG, JR. SC755 84 1984 Surface Construction Supervisor ADAM J. FOSTER S 3564 01 2001 Surface Mine Foreman CHARLES E. FOSTER S 1385 80 1980 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DANNY L. FOSTER S 2663 91 1991 Surface Mine Foreman FRANK G. FOSTER SC1082 93 1993 Surface Construction Supervisor GEORGE FOSTER SS 30 05 2005 Shaft and Slope Superintendent JAMES FOSTER S 4184 06 2006 Surface Mine Foreman KENNETH R. FOSTER S 5098 12 2012 Surface Mine Foreman PAUL A. FOSTER SC828 86 1986 Surface Construction Supervisor PHILLIP D. FOSTER SS 87 08 2008 Shaft and Slope Superintendent RICKY L. FOSTER S 3559 01 2001 Surface Mine Foreman ROBERT M. FOSTER S 4784 10 2010 Surface Mine Foreman ROGER L. FOSTER S 510 79 1979 Surface Mine Foreman WILLIAM F. FOSTER S 835 79 1979 Surface Mine Foreman ELDON D. FOSTER, JR. SC883 87 1987 Surface Construction Supervisor DEL C. FOT SC1343 95 1995 Surface Construction Supervisor WILLIAM H. FOUCH S 2401 89 1989 Surface Mine Foreman CHARLES P. FOUT S 3843 04 2004 Surface Mine Foreman CHARLES EDWARD FOUT S2700 91 1991 Surface Mine Foreman BOYD D. FOWLER SC1014 92 1992 Surface Construction Supervisor DREXAL FOWLER SC1644 96 1996 Surface Construction Supervisor RODNEY A. FOWLER S 4293 07 2007 Surface Mine Foreman ROY A. FOWLER S 1773 83 1983 Surface Mine Foreman THOMAS E. FOWLER S 3414 00 2000 Surface Mine Foreman WILLIAM R. FOWLER S 4578 08 2008 Surface Mine Foreman JOSEPH E. FOWLER II S 3412 00 2000 Surface Mine Foreman JOHN H. FOX S 5134 13 2013 Surface Mine Foreman JOHN R. FOX S 217 78 1978 Surface Mine Foreman JOHNNY G. FOX SC 2274 04 2004 Surface Construction Supervisor LEONARD W. FOX S 2131 86 1986 Surface Mine Foreman RAYMOND L. FOX SC1620 96 1996 Surface Construction Supervisor RICHARD L. FOX SC 2921 13 2013 Surface Construction Supervisor RONALD D. FOYE S 2326 88 1988 Surface Mine Foreman PALMER J. FRAGELLO SC446 83 1983 Surface Construction Supervisor CHRISTOPHER L. FRALEY S 4709 09 2009 Surface Mine Foreman GALE L. FRALEY SC 552 83 1983 Surface Construction Supervisor RONALD FRALEY SC 1960 98 1998 Surface Construction Supervisor THOMAS M. FRALEY S 2482 90 1990 Surface Mine Foreman KENNETH R. FRALEY II S 3088 96 1996 Surface Mine Foreman KENNETH R. FRALEY II S 3088 24 1995 Asst. Surface Mine Foreman CHARLES C. FRAME SC 2424 06 2006 Surface Construction Supervisor GREGORY T. FRAME S 2284 88 1988 Surface Mine Foreman JAMES H. FRAME SC708 84 1984 Surface Construction Supervisor LARRY W. FRAME SC 1948 98 1998 Surface Construction Supervisor MARSHALL A. FRAME SC 2485 06 2006 Surface Construction Supervisor MICHAEL A. FRAME S 2096 86 1986 Surface Mine Foreman DORAN H. FRAME III SC 2422 06 2006 Surface Construction Supervisor JERRY D. FRANCIS S 3677 03 2003 Surface Mine Foreman RALPH FRANCIS S 3450 01 2001 Surface Mine Foreman RICHARD H. FRANCIS S 2230 87 1987 Surface Mine Foreman RODGER F. FRANK SC152 82 1982 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DANNY J. FRANKLIN S 4182 06 2006 Surface Mine Foreman DANNY J. FRANKLIN SC1191 94 1994 Surface Construction Supervisor MICHAEL L. FRANKLIN S 2772 92 1992 Surface Mine Foreman WILLIAM L. FRANKLIN SC1265 95 1995 Surface Construction Supervisor KENNETH FRANKLIN, JR. SC1097 94 1994 Surface Construction Supervisor JOHN FRANKO, III SC 2457 06 2006 Surface Construction Supervisor BARRY E. FRAZEE S 2088 86 1986 Surface Mine Foreman DONNIE R. FRAZER S 3185 96 1996 Surface Mine Foreman R FRAZIER S 1730 83 1983 Surface Mine Foreman ANTHONY T. FREDERICK SC 1874 98 1998 Surface Construction Supervisor CHADWICK S. FREDERICK SC 2037 00 2000 Surface Construction Supervisor DAVID A. FREELAND SC1603 96 1996 Surface Construction Supervisor JACK E. FREELAND SC041 82 1982 Surface Construction Supervisor ARNOLD LEO FREEMAN S 2299 88 1988 Surface Mine Foreman IRA D. FREEMAN S 2611 91 1991 Surface Mine Foreman JEFFREY L. FREEMAN SC1743 97 1997 Surface Construction Supervisor JUSTIN W. FREEMAN SC 2783 11 2011 Surface Construction Supervisor EDWARD K. FRESA S 658 79 1979 Surface Mine Foreman JEFFREY C. FREY S 4215 06 2006 Surface Mine Foreman CHARLES R. FRIDDEL SC773 85 1985 Surface Construction Supervisor DANNY A. FRIDLEY S 2070 85 1985 Surface Mine Foreman LESTER L. FRIDLEY SS 17679 1979 Shaft & Slope Examiner Foreman LESTER L. FRIDLEY SC121 82 1982 Surface Construction Supervisor BRADLY R. FRIEDLINE SC 3107 19 2019 Surface Construction Supervisor BRIAN L. FRIEND SC 1905 98 1998 Surface Construction Supervisor DANIEL J. FRIEND S 923 79 1979 Surface Mine Foreman JAMES L. FRIEND S 350 79 1979 Surface Mine Foreman JERRY FRIEND SC670 83 1983 Surface Construction Supervisor JONATHAN R. FRIEND SC1734 97 1997 Surface Construction Supervisor LOUIS W. FRIEND SC 2499 06 2006 Surface Construction Supervisor STANLEY B. FRIEND S 812 79 1979 Surface Mine Foreman CARL F. FRISCHKORN S 378 79 1979 Surface Mine Foreman RICHARD L. FROATS S 934 79 1979 Surface Mine Foreman BILLY G. FRY SC968 91 1991 Surface Construction Supervisor DANNY J. FRY SC966 91 1991 Surface Construction Supervisor DAVID P. FRY S 2843 92 1992 Surface Mine Foreman DAVID P. FRY SC961 91 1991 Surface Construction Supervisor GEORGE T. FRY SC960 91 1991 Surface Construction Supervisor WILLIAM J. FRY S 379 79 1979 Surface Mine Foreman CLYDE M. FRYE SC274 82 1982 Surface Construction Supervisor CURTIS E. FRYE SC 563 83 1983 Surface Construction Supervisor DARRELL L. FRYE SC 2990 14 2014 Surface Construction Supervisor DEWEY H. FRYE SC663 83 1983 Surface Construction Supervisor DONALD R. FRYE S 401 79 1979 Surface Mine Foreman GLEN E. FRYE S 4375 07 2007 Surface Mine Foreman KENNETH R. FRYE S 2182 87 1987 Surface Mine Foreman SHAWN D. FRYE SC 2967 13 2013 Surface Construction Supervisor THOMAS W. FRYE S 4864 10 2010 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE TRUMAN D. FRYE SC1336 95 1995 Surface Construction Supervisor GLEN E. FRYE, JR. SC 2581 08 2008 Surface Construction Supervisor DARRELL G. FUGATE S 612 79 1979 Surface Mine Foreman TIMOTHY S. FUGATE S 5073 12 2012 Surface Mine Foreman WILLIAM M. FUGATE S2803 92 1992 Surface Mine Foreman JAMES H. FUGETT SS 59 06 2006 Shaft and Slope Superintendent JAMES H. FUGETT SS 264 91 1991 Shaft & Slope Examiner Foreman MICHAEL FUGICH SC056 82 1982 Surface Construction Supervisor DANIEL M. FULGHAM SC 2675 09 2009 Surface Construction Supervisor HASSEL J. FULLER S 2706 91 1991 Surface Mine Foreman MICHAEL C. FULLER S 3438 01 2001 Surface Mine Foreman MICHAEL C. FULLER SC 2110 01 2001 Surface Construction Supervisor RICK B. FULLER S 4808 10 2010 Surface Mine Foreman ROY L. FULLER SC950 91 1991 Surface Construction Supervisor CHARLES E. FULTZ S 452 79 1979 Surface Mine Foreman ANDREW D. FURBEE SC 2411 06 2006 Surface Construction Supervisor JAMES EARL FURBY S 555 79 1979 Surface Mine Foreman ROBERT B. FUREY SC1304 95 1995 Surface Construction Supervisor FRED W. FURNO S 1693 82 1982 Surface Mine Foreman DANNY H. FURR S 1760 83 1983 Surface Mine Foreman HAYWARD S. FURR S 1066 79 1979 Surface Mine Foreman DAVID A. FURROW SS 21382 1982 Shaft & Slope Examiner Foreman EUGENE M. FUSCO SC053 82 1982 Surface Construction Supervisor EARNEST R. FUSON S 5378 16 2016 Surface Mine Foreman GEORGE R. FUSON S 3703 03 2003 Surface Mine Foreman HENRY A. FUSON, JR. S 501 79 1979 Surface Mine Foreman JAMES R. GADD SC774 85 1985 Surface Construction Supervisor PETER GAGICH II SC1550 96 1996 Surface Construction Supervisor JOHN GAGICH, JR. SC865 86 1986 Surface Construction Supervisor GERALD B. GAINS S 1155 79 1979 Surface Mine Foreman LARRY R. GAITHER SC 1877 98 1998 Surface Construction Supervisor JOE GALIK S 1044 79 1979 Surface Mine Foreman JOHN E. GALLAHER SC895 89 0 Surface Construction Supervisor RICAHRD A. GALLENTINE SS 85 76 0 Shaft & Slope Examiner Foreman JOHN D. GALLO S 1500 81 1981 Surface Mine Foreman JOSEPH D. GALLOWAY S 4205 06 2006 Surface Mine Foreman KERMIT E. GALLOWAY S 474 79 1979 Surface Mine Foreman NORMAN L. GAMACHE SC040 82 1982 Surface Construction Supervisor JEREMY D. GANDEE SC 2367 05 2005 Surface Construction Supervisor NIRMAL K. GANGOPADHYAY S 4 78 1943 Surface Mine Foreman BILLY E. GANN SC 3012 15 2015 Surface Construction Supervisor BILLY E. GANN RBS 2 19 2019 Raised Bore/Blind Drilling Super. ROGER D. GANN S 372 79 1979 Surface Mine Foreman CHARLES E. GANNON SC357 83 1983 Surface Construction Supervisor MILLARD GANNON S 39 78 1978 Surface Mine Foreman VINCENT R. GARAFFA S 1023 79 1979 Surface Mine Foreman KENNETH DAVID GARBART S 174 78 1978 Surface Mine Foreman PHILLIP W. GARBER JR. SC 2313 05 2005 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ANDRES M. GARCIA SC 2858 12 2012 Surface Construction Supervisor ERNEST C. GARDNER S 5002 11 2011 Surface Mine Foreman ERNEST C. GARDNER S 1166 A 2011 Asst. Surface Mine Foreman WILLIAM A. GARDNER SC 528 83 1983 Surface Construction Supervisor EDWARD L. GARLAND SC1625 96 1996 Surface Construction Supervisor JOHN T. GARNER S 1952 84 1984 Surface Mine Foreman VERNON A. GARNER S 3316 98 1998 Surface Mine Foreman JAMES R. GARRETSON S 1983 85 1985 Surface Mine Foreman JAMES R. GARRETSON SC781 85 1985 Surface Construction Supervisor KENNETH C. GARRETSON S 1003 79 1979 Surface Mine Foreman EDWARD D. GARRETT SC1612 96 1996 Surface Construction Supervisor RAY L. GARRETT S 1059 79 1979 Surface Mine Foreman ROBERT E. GARRETT S 156 78 1978 Surface Mine Foreman WILLIAM T. GARRETT S 3095 95 1995 Surface Mine Foreman DONALD D. GARRISON S 1296 80 1980 Surface Mine Foreman EDWARD A. GARRISON SS 65 75 1975 Shaft & Slope Examiner Foreman TIMOTHY W. GARRISON S 4651 09 2009 Surface Mine Foreman RONALD H. GARTEN SC1248 95 1995 Surface Construction Supervisor GEORGE E. GASTER SS 224 83 1983 Shaft & Slope Examiner Foreman GEORGE E. GASTER SC319 83 1983 Surface Construction Supervisor WILLIAM F. GATIAN, II S 1973 84 1984 Surface Mine Foreman JULES GAUTIER, III S 3872 05 2005 Surface Mine Foreman MARK D. GAYNOR SC1799 97 1997 Surface Construction Supervisor CLIFFORD R. GEAR SS 80 76 0 Shaft & Slope Examiner Foreman CLAUD A. GEARHEART SC 2676 09 2009 Surface Construction Supervisor DAVID GENT JR. S 4786 10 2010 Surface Mine Foreman MARK E. GEORGE S 1997 85 1985 Surface Mine Foreman NORMAN L. GEORGE SS 40 73 1973 Shaft & Slope Examiner Foreman RODERICK R. GEORGE SC1807 97 1997 Surface Construction Supervisor STEPHEN W. GEORGE S 1405 81 1981 Surface Mine Foreman JODY GEORGETTI SC 2163 02 2002 Surface Construction Supervisor SANDY J. GEORGETTI SC868 86 1986 Surface Construction Supervisor LOUIE J. GERARD SC 2717 10 2010 Surface Construction Supervisor DON R. GERAU SC 2286 04 2004 Surface Construction Supervisor DONALD E. GERAU SC099 82 1982 Surface Construction Supervisor JEFFREY L. GERAU SC624 83 1983 Surface Construction Supervisor JEREMY W. GERAU SC 2272 04 2004 Surface Construction Supervisor PRESSLEY W. GERAU SC575 83 1983 Surface Construction Supervisor JEFF L. GERENCIR S 2928 93 1993 Surface Mine Foreman STEVE L. GERKIN SC1820 97 1997 Surface Construction Supervisor MICHAEL J. GERMAN SS 88 09 2009 Shaft and Slope Superintendent JOHN H. GEROSKI JR. S 234 78 1978 Surface Mine Foreman DAVID C. GETZ SC1674 96 1996 Surface Construction Supervisor RUSSELL D. GETZ S 1914 84 1984 Surface Mine Foreman JAMES L. GHEARING SC397 83 1983 Surface Construction Supervisor WILLIAM B. GIBBONS S 5329 15 2015 Surface Mine Foreman DAVID N. GIBBS SS 57 73 1973 Shaft & Slope Examiner Foreman DAVID N. GIBBS SC122 82 1982 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CLAUDE THURMON GIBBS SR. S 824 79 1979 Surface Mine Foreman CECIL J. GIBSON SC 2609 08 2008 Surface Construction Supervisor CHARLES W. GIBSON S 5045 12 2012 Surface Mine Foreman CHESTER A. GIBSON S 3509 01 2001 Surface Mine Foreman EDGAR A. GIBSON S 4570 08 2008 Surface Mine Foreman GREGORY M. GIBSON S 3139 96 1996 Surface Mine Foreman JERRY L. GIBSON S 5376 16 2016 Surface Mine Foreman KENNETH H. GIBSON S 4645 09 2009 Surface Mine Foreman RAYMOND A. GIBSON S 3312 98 1998 Surface Mine Foreman RICHARD A. GIBSON SC1131 94 1994 Surface Construction Supervisor ROBERT D. GIBSON SC1132 94 1994 Surface Construction Supervisor ROBERT J. GIBSON S 4958 11 2011 Surface Mine Foreman ROBERT J. GIBSON SC 2539 07 2007 Surface Construction Supervisor RYAN S. GIBSON SS304 97 1997 Surface Construction Supervisor THEODORE BUTLER GIBSON S 619 79 1979 Surface Mine Foreman TRAVIS L. GIBSON SC 2987 14 2014 Surface Construction Supervisor ROBERT D. GIBSON JR. SC 2225 03 2003 Surface Construction Supervisor CLARENCE GIBSON, JR. S 1281 80 1980 Surface Mine Foreman ROBERT C. GIBSON, JR. S 1681 82 1982 Surface Mine Foreman DAVID A. GILBERT SC938 91 1991 Surface Construction Supervisor JEFFREY D. GILBERT SC940 91 1991 Surface Construction Supervisor WAYNE GILDE SC 1867 98 1998 Surface Construction Supervisor STEVE O. GILES S 5290 15 2015 Surface Mine Foreman BRANDON D. GILFILEN S 4217 06 2006 Surface Mine Foreman DANNY W. GILFILEN SC 2076 01 2001 Surface Construction Supervisor NATHANIEL S. GILFILEN S 5634 20 2020 Surface Mine Foreman NATHANIEL S. GILFILEN S 1181 A 2019 Asst. Surface Mine Foreman STEVEN D. GILFILEN S 3422 00 2000 Surface Mine Foreman STEVEN D. GILFILEN SC 2071 00 2000 Surface Construction Supervisor BILLY GILKERSON SC 2901 13 2013 Surface Construction Supervisor THOMAS W. GILKERSON S 226 78 1978 Surface Mine Foreman DALE K. GILKESON S 2377 89 1989 Surface Mine Foreman DAVID K. GILKESON S 3129 95 1995 Surface Mine Foreman FREDRICK R. GILKESON S 354 79 1979 Surface Mine Foreman JOHN D. GILKESON S 4586 09 2008 Surface Mine Foreman MARK E. GILKESON S 4601 09 2009 Surface Mine Foreman STOUGHTON E GILKESON 210886 1986 Surface Mine Foreman JAMES R. GILKESON, JR. S 4520 08 2008 Surface Mine Foreman JAMES A. GILKEY S 2738 91 1991 Surface Mine Foreman DAVID R. GILL SC1222 95 1995 Surface Construction Supervisor PAUL R. GILL II SC1170 94 1994 Surface Construction Supervisor ROSS F. GILLENWATER SC 1993 99 1999 Surface Construction Supervisor ERNEST E GILLESPIE SC 1892 98 1998 Surface Construction Supervisor JAMES W. GILLESPIE S 4410 08 2008 Surface Mine Foreman JONATHAN E. GILLESPIE S 1667 13 1982 Asst. Surface Mine Foreman STEVE M GILLESPIE SC 1891 98 1998 Surface Construction Supervisor GREGORY J. GILLIAM SC082 82 1982 Surface Construction Supervisor OLGIE GILLIAM SC084 82 1982 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE OLGIE D. GILLIAM SC083 82 1982 Surface Construction Supervisor KENNETH R. GILLILAND S 2935 93 1993 Surface Mine Foreman RYAN W. GILLILAND S 4350 07 2007 Surface Mine Foreman COY D. GILLISPIE S 149 78 1978 Surface Mine Foreman DAVID P. GILLISPIE S 4048 06 2006 Surface Mine Foreman JIMMY L. GILLISPIE SS 122 77 0 Shaft & Slope Examiner Foreman RALPH L. GILLISPIE S 3260 98 1998 Surface Mine Foreman ANTHONY A. GILMORE S 1585 82 1946 Surface Mine Foreman ROY A. GILMORE SC733 84 1984 Surface Construction Supervisor CHARLES A. GILPIN S 3476 01 2001 Surface Mine Foreman WILLIAM M. GINDLESBERGER S 1008 79 1979 Surface Mine Foreman EMORY J. GINGISE II SC1639 96 1996 Surface Construction Supervisor BOBBY S. GINN S 689 79 1979 Surface Mine Foreman CHRISTOPHER A. GIRTEN SS 128 19 2019 Shaft and Slope Superintendent DWIGHT M. GIVEN S 2998 94 1994 Surface Mine Foreman DWIGHT M. GIVEN SC1087 93 1993 Surface Construction Supervisor HAROLD D. GIVEN SC490 83 1983 Surface Construction Supervisor SAMUEL E GIVEN S 3276 98 1998 Surface Mine Foreman BUHAL R. GIVEN II S 3958 05 2005 Surface Mine Foreman ERIC W. GIVENS S 2173 87 1987 Surface Mine Foreman RICHARD W. GIVENS S 1747 84 1984 Surface Mine Foreman JEFFREY A. GLASS SC1354 95 1995 Surface Construction Supervisor HAROLD L. GLENN SC386 83 1983 Surface Construction Supervisor ROBERT L. GLIDDEN SC 1879 98 1998 Surface Construction Supervisor DENNIS G. GLOTFELTY S 236 78 1978 Surface Mine Foreman RODERIC GLOTFELTY S 811 79 1979 Surface Mine Foreman SAMUEL R. GLOTFELTY S 1254 80 1980 Surface Mine Foreman WILLIS J. GLOTFELTY S 1915 84 1984 Surface Mine Foreman DAVID K. GLOVER S 3037 94 1994 Surface Mine Foreman GEORGE H. GLOVER SC 517 83 1983 Surface Construction Supervisor JAMES H. GLOVER SC 2478 06 2006 Surface Construction Supervisor RODNEY D. GLOVER S 2908 93 1993 Surface Mine Foreman ROBERT W. GLOYD SC1239 95 1995 Surface Construction Supervisor ANDREW T. GLYCADGIS S 4264 07 2007 Surface Mine Foreman JOHN R. GOAD S 2838 92 1992 Surface Mine Foreman PHIL M. GOBLE S 2034 85 1985 Surface Mine Foreman RICKY GOBLE S 5417 17 2017 Surface Mine Foreman STEVEN R. GODBY S 2982 94 1994 Surface Mine Foreman JOHN H GOETZ SC 1886 98 1998 Surface Construction Supervisor ALVIE D. GOFF S 151 78 1978 Surface Mine Foreman DANNY P. GOFF S2355 88 1988 Surface Mine Foreman WILLIAM R. GOGLIN SC311 83 1983 Surface Construction Supervisor BRANDON S. GOINS S 5202 13 2013 Surface Mine Foreman JAMES F. GOINS S 2865 92 1992 Surface Mine Foreman JERRY W. GOINS JR. S 5589 19 2019 Surface Mine Foreman SHAWN M. GOLD SC 3019 15 2015 Surface Construction Supervisor WILLIAM L. GOLDEN S 1157 79 1979 Surface Mine Foreman CHARLES S. GOLDEN, JR. S 2990 94 1994 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE EARL L. GOLDEN, JR. S 4717 09 2009 Surface Mine Foreman FRED A. GOLDEN, SR. S 1968 84 1984 Surface Mine Foreman LESLIE T. GOLDIE S 1961 84 1984 Surface Mine Foreman MICHAEL P. GOLDSBOROUGH S 671 79 1979 Surface Mine Foreman JAMES R. GOMEZ S 788 79 1979 Surface Mine Foreman ALBERT R. GONZ SS 91 09 2009 Shaft and Slope Superintendent JOHN A. GONZ SS 230 84 1984 Shaft & Slope Examiner Foreman CHRISTOPHER T. GOOD S 5503 18 2018 Surface Mine Foreman DONALD G. GOOD S 2731 91 1991 Surface Mine Foreman JERRY A. GOOD S 764 79 1979 Surface Mine Foreman RICKIE W. GOOD SC1667 96 1996 Surface Construction Supervisor WILLIAM R. GOOD SC1122 94 1994 Surface Construction Supervisor CHARLES C. GOODALL S 797 79 1979 Surface Mine Foreman CHARLES G. GOODALL SC179 82 1982 Surface Construction Supervisor AARON A. GOODMAN S 3212 97 1997 Surface Mine Foreman JACK W. GOODWIN S 1041 79 1979 Surface Mine Foreman LINDA GOODWIN S 1654 82 1982 Surface Mine Foreman THOMAS G. GOODWIN S 1017 79 1979 Surface Mine Foreman KEVIN D. GOOSLIN S 4174 06 2006 Surface Mine Foreman SHAWN K. GOOSLIN S 5517 18 2018 Surface Mine Foreman JULE F. GORDON S 295 79 1979 Surface Mine Foreman LARRY S. GORDON SC 2701 09 2009 Surface Construction Supervisor BART M. GORE S 4091 06 2006 Surface Mine Foreman BRET Q. GORE S 1030 A 2003 Asst. Surface Mine Foreman DAVE E. GORE S 2076 85 1985 Surface Mine Foreman FORREST D. GORE S 3684 03 2003 Surface Mine Foreman JEFFREY S. GORE S 4176 06 2006 Surface Mine Foreman LONNIE C. GORE S 3591 02 2002 Surface Mine Foreman STEPHEN H. GOSNELL S 4951 11 2011 Surface Mine Foreman BILLY S. GOSS S 3818 04 2004 Surface Mine Foreman CLETE L. GOULD JR. SC 2124 01 2001 Surface Construction Supervisor JOHNNY C. GOWAN S 3719 03 2003 Surface Mine Foreman LOWELL GOWER S 839 79 1979 Surface Mine Foreman BOBBY T. GRAHAM S 5534 18 2018 Surface Mine Foreman BRIAN K. GRAHAM S 4692 09 2009 Surface Mine Foreman JEFFREY R. GRAHAM S 4654 09 2009 Surface Mine Foreman JEROME K. GRAHAM S 4424 08 2008 Surface Mine Foreman JOHN T. GRAHAM SC1789 97 1997 Surface Construction Supervisor LAWRENCE C. GRAHAM SC268 82 1982 Surface Construction Supervisor MARTIN GRAHAM SS 44 73 1973 Shaft & Slope Examiner Foreman ROBERT E. GRAHAM S 2247 87 1987 Surface Mine Foreman ROGER L. GRAHAM SC990 92 1992 Surface Construction Supervisor SCOTT E. GRAHAM SC 2463 06 2006 Surface Construction Supervisor KENNETH G. GRAHAM, JR. SC 2443 06 2006 Surface Construction Supervisor ROBERT W. GRAHAM, JR. SC 2176 02 2002 Surface Construction Supervisor ROGER D. GRALEY SC 2253 04 2004 Surface Construction Supervisor TERRY L. GRALEY SC1266 95 1995 Surface Construction Supervisor DANNY L. GRANT S 3938 05 2005 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DANNY L. GRANT S 1021 A 2002 Asst. Surface Mine Foreman THOMAS D. GRANT S 3388 00 2000 Surface Mine Foreman HEWETT M. GRASTY S 231 78 1978 Surface Mine Foreman BRIAN D. GRAY S 5602 19 2019 Surface Mine Foreman CHARLES L. GRAY SC1275 95 1995 Surface Construction Supervisor ERNEST A. GRAY S 1742 83 1983 Surface Mine Foreman GARY J. GRAY SM118 78 1978 Asst. Surface Mine Foreman JAMES E. GRAY S 2516 90 1990 Surface Mine Foreman MICHAEL GRAY S 4003 05 2005 Surface Mine Foreman PAUL D. GRAY S 2810 92 1992 Surface Mine Foreman RONALD L. GRAY S 1354 80 1980 Surface Mine Foreman CARL N. GRAYBEAL S 1360 80 1980 Surface Mine Foreman KEVIN L. GRAYBEAL SC1224 95 1995 Surface Construction Supervisor THOMAS L. GRAYBEAL S 1403 81 1981 Surface Mine Foreman JOHN D. GREAR SC1247 95 1995 Surface Construction Supervisor LONNIE E. GREAR SC1118 94 1994 Surface Construction Supervisor ALLEN K. GREATHOUSE SC 3148 20 2020 Surface Construction Supervisor DONALD L. GREATHOUSE SC218 82 1982 Surface Construction Supervisor TIM GREATHOUSE S 4719 09 2009 Surface Mine Foreman CARSON D. GREEN S 1518 81 1981 Surface Mine Foreman CHARLES M. GREEN S 3024 94 1994 Surface Mine Foreman HOMER L. GREEN S 1327 80 1980 Surface Mine Foreman JAMES G. GREEN S 4213 06 2006 Surface Mine Foreman JAMES R. GREEN SC 2861 12 2012 Surface Construction Supervisor JOSEPH E. GREEN S 1971 84 1984 Surface Mine Foreman KYLE E. GREEN SC 3001 14 2014 Surface Construction Supervisor LEWIS E. GREEN S 2212 87 1987 Surface Mine Foreman LLOYD LANTZ GREEN S 537 79 1979 Surface Mine Foreman LLOYD RICHARD GREEN S 543 79 1979 Surface Mine Foreman MARCUS A. GREEN SC 2837 11 2011 Surface Construction Supervisor MICHAEL W. GREEN SC 2576 08 2008 Surface Construction Supervisor ROGER L. GREEN S 2218 87 1987 Surface Mine Foreman TERRY L. GREEN SC784 85 1985 Surface Construction Supervisor TIKE D. GREEN S 4068 06 2006 Surface Mine Foreman VICTOR T. GREEN SC184 82 1982 Surface Construction Supervisor JOSEPH E. GREEN, JR. S 1967 84 1984 Surface Mine Foreman BRUCE GREENE S 259 79 1979 Surface Mine Foreman EVERETT M. GREENE SC 2016 99 1999 Surface Construction Supervisor GEORGE M. GREENE S 258 79 1979 Surface Mine Foreman MICHAEL A. GREENWAY S 944 79 1979 Surface Mine Foreman WILLIAM R. GREENWOOD SC062 82 1982 Surface Construction Supervisor ROBERT L. GREER, JR. S 3350 99 1999 Surface Mine Foreman JOHN J. GREGG S 351 79 1979 Surface Mine Foreman JOHN J GREGG SC 1883 98 1998 Surface Construction Supervisor MARK S. GREGG SC1405 95 1995 Surface Construction Supervisor WAYNE N. GREGOIRE S 1048 79 1979 Surface Mine Foreman BRAD N. GREGORY S 3201 97 1997 Surface Mine Foreman DAVID A. GREGORY SC277 83 1983 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOHN GREGORY S 4525 08 2008 Surface Mine Foreman NEIL K. GREGORY S 3870 05 2005 Surface Mine Foreman ROGER A. GREGORY S 4296 07 2007 Surface Mine Foreman TIMOTHY J. GREGORY S 3596 02 2002 Surface Mine Foreman WILLIAM J. GREGORY S 2389 89 1989 Surface Mine Foreman PAUL D. GREINER S 1533 81 1981 Surface Mine Foreman LARRY GRIBBLE S 1065 A 2005 Asst. Surface Mine Foreman BILL E. GRICAR SC1179 94 1994 Surface Construction Supervisor BOBBY S. GRIFFIE S 5477 18 2018 Surface Mine Foreman ALVIE L. GRIFFIN S 3854 04 2004 Surface Mine Foreman JAMES R. GRIFFIN S 2422 89 1989 Surface Mine Foreman WILLIAM C. GRIFFIN S 4522 08 2008 Surface Mine Foreman BILLY A. GRIFFITH SC1649 96 1996 Surface Construction Supervisor CALVIN W. GRIFFITH SC669 83 1983 Surface Construction Supervisor CARL R. GRIFFITH S 280 79 1979 Surface Mine Foreman CHESTER R. GRIFFITH S 1162 79 1979 Surface Mine Foreman DELMAS E. GRIFFITH S 2767 92 1992 Surface Mine Foreman FREDRICK L. GRIFFITH S 3408 00 2000 Surface Mine Foreman HAROLD DEAN GRIFFITH S 2557 90 1990 Surface Mine Foreman JAMES R. GRIFFITH S 1738 83 1983 Surface Mine Foreman JEFFREY L. GRIFFITH S 2429 89 1989 Surface Mine Foreman KEITH A. GRIFFITH S 3720 03 2003 Surface Mine Foreman KENNETH GRIFFITH SC1031 92 1992 Surface Construction Supervisor MELVIN H. GRIFFITH SC1650 96 1996 Surface Construction Supervisor ROGER L. GRIFFITH SC1651 96 0 Surface Construction Supervisor ROGER L. GRIFFITH SC 165196 1996 Surface Construction Supervisor FRED E. GRIGGS, JR. S 3699 03 2003 Surface Mine Foreman PHILLIP B. GRIGSBY S 866 79 1979 Surface Mine Foreman JOE L. GRIMES S 4390 07 2007 Surface Mine Foreman RAYMOND E. GRIMES SC991 92 1992 Surface Construction Supervisor ALBERT L. GRIMMETT S 4241 06 2006 Surface Mine Foreman DANNY R. GRIMMETT SC1445 95 1995 Surface Construction Supervisor LOWELL R. GRIMMETT S 1430 81 1981 Surface Mine Foreman JESSE D. GRIMMETT, JR. S 3778 04 2004 Surface Mine Foreman JERRY D. GROGAN S 1501 81 1981 Surface Mine Foreman LARRY N. GROGG SC1345 95 1995 Surface Construction Supervisor LARRY NATHAN GROGG S 273 79 1979 Surface Mine Foreman ELMER GROMLEY, JR. SC1689 97 1997 Surface Construction Supervisor KENNETH R. GROOMS SS 239 86 1986 Shaft & Slope Examiner Foreman WILLIAM K. GROOMS SS 258 89 1989 Shaft & Slope Examiner Foreman CHARLES M. GROSE SC 820 86 1986 Surface Construction Supervisor CHARLES R. GROSE SC829 86 1986 Surface Construction Supervisor DARWIN R. GROSE SC1464 95 1995 Surface Construction Supervisor JAMES H. GROSE S 1651 82 1982 Surface Mine Foreman ROBERT L. GROSE S 3352 99 1999 Surface Mine Foreman ADAM L. GROSS S 5618 19 2019 Surface Mine Foreman JIMMY L. GROSS SC1454 95 1995 Surface Construction Supervisor ROBERT GROSS SC 1965 98 1998 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ROBERT L. GROUNDS S 2899 93 1949 Surface Mine Foreman WELDON L. GROVE S 1433 81 1981 Surface Mine Foreman DONALD R. GROVES S 178 78 1978 Surface Mine Foreman GARLAND J. GROVES SC351 83 1983 Surface Construction Supervisor JOHN L. GROVES S 2334 88 1988 Surface Mine Foreman KENNETH E. GROVES S 1 78 1978 Surface Mine Foreman MICHAEL W. GROVES S 4404 08 2008 Surface Mine Foreman ORA T. GROVES S 110 78 1978 Surface Mine Foreman ROBERT GROVES SC 2804 11 2011 Surface Construction Supervisor BILLY J. GRUBB S 4790 10 2010 Surface Mine Foreman MICHAEL L. GRUBB S 5230 14 2014 Surface Mine Foreman JOHN P. GUARNIERI SC695 83 1983 Surface Construction Supervisor JAMES R. GUERIN SC 2060 00 2000 Surface Construction Supervisor SAM GUGLIELMO S 1001 79 1979 Surface Mine Foreman JAMES H. GUILLAMS S 1319 80 1980 Surface Mine Foreman JOHN H. GUINN S 4827 10 2010 Surface Mine Foreman WADE B. GULLETT SC 2270 04 2004 Surface Construction Supervisor LAWRENCE S. GULLION SC1347 95 1995 Surface Construction Supervisor TROY E. GULLION SC1363 95 1995 Surface Construction Supervisor FRED R. GUMBERT SC257 82 1982 Surface Construction Supervisor BRIAN S. GUMM S 4537 08 2008 Surface Mine Foreman GARY M. GUMM S 3264 98 1998 Surface Mine Foreman JOHN A. GUMP SS 106 12 2012 Shaft and Slope Superintendent DONALD E. GUNNOE SS 273 91 1991 Shaft & Slope Examiner Foreman DONALD E. GUNNOE SC1772 97 1997 Surface Construction Supervisor STEVEN H. GUNNOE S 84 78 1978 Surface Mine Foreman DANIEL K. GUNTER SC1249 95 1995 Surface Construction Supervisor FREDDY C. GUNTER S 1803 83 1983 Surface Mine Foreman ROBERT R. GUNTER S 2191 87 1987 Surface Mine Foreman RONALD KEITH GUNTER S 125 78 1978 Surface Mine Foreman RONALD K. GUNTER, JR. S 4907 11 2011 Surface Mine Foreman R. JAMES GUNTHER SS 24286 1986 Shaft & Slope Examiner Foreman R. JAMES GUNTHER SC816 86 1986 Surface Construction Supervisor ERIC C. GUTHRIE SC 2322 05 2005 Surface Construction Supervisor HEDRA L. GUTHRIE S 2398 89 1989 Surface Mine Foreman PERRY F. GUTHRIE, SR. SS 11477 1977 Shaft & Slope Examiner Foreman PERRY F. GUTHRIE, SR. SC316 83 1983 Surface Construction Supervisor INOCENCIO GUTIERREZ SC 2544 07 2007 Surface Construction Supervisor LIBRADO GUTIERREZ SC 2554 07 2007 Surface Construction Supervisor RONALD W. GUTSHALL S 97 78 1978 Surface Mine Foreman JOHN B. GUTTA, JR. S 1633 82 1982 Surface Mine Foreman EARTHEL H. GWINN S 756 79 1979 Surface Mine Foreman HAROLD A. GWINN S 1020 79 1979 Surface Mine Foreman HOWARD E. GWINN S 450 79 1979 Surface Mine Foreman LONNIE K. GWINN S 767 79 1979 Surface Mine Foreman THOMAS S. GWINN, JR. S 4611 09 2009 Surface Mine Foreman THOMAS S. GWINN, JR. S 1115 A 2008 Asst. Surface Mine Foreman DONALD D. GYORKO SS 69 06 2006 Shaft and Slope Superintendent NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DONALD D. GYORKO SS 18180 1980 Shaft & Slope Examiner Foreman DONALD D. GYORKO SC1660 96 1996 Surface Construction Supervisor JAMES C. HAAG SS 39 73 1973 Shaft & Slope Examiner Foreman KENNETH E. HAAG S 2380 89 1989 Surface Mine Foreman GARY Y. HACKNEY S2809 92 1992 Surface Mine Foreman GERALD L. HACKNEY S 144 78 1978 Surface Mine Foreman GERALD L. HACKNEY SC 504 83 1983 Surface Construction Supervisor RAYMOND E. HACKNEY S 1187 79 1979 Surface Mine Foreman CHARLES W. HACKWORTH S 3207 97 1997 Surface Mine Foreman DARRELL K. HACKWORTH S 5260 14 2014 Surface Mine Foreman STEPHEN E. HACKWORTH 2815 92 1992 Surface Mine Foreman TIMOTHY HACKWORTH S 3989 05 2005 Surface Mine Foreman JAMES P. HADDIX S 98 78 1978 Surface Mine Foreman EDWARD M. HADEN S 5235 14 2014 Surface Mine Foreman EDWARD M. HADEN S 1172 A 2013 Asst. Surface Mine Foreman ROBERT M. HAGAN SC025 82 1982 Surface Construction Supervisor THOMAS M. HAGAN S3245 97 1997 Surface Mine Foreman RAYMOND W. HAGEL SS 84 07 2007 Shaft and Slope Superintendent CECIL T. HAGER S 4054 06 2006 Surface Mine Foreman CHARLEY HAGER S 2659 91 1991 Surface Mine Foreman ERNEST R. HAGER SC341 83 1983 Surface Construction Supervisor JOHNATHAN S. HAGER S 5530 18 2018 Surface Mine Foreman JOHNATHAN S. HAGER S 1179 A 2018 Asst. Surface Mine Foreman MICKEY J. HAGER S 2348 88 1988 Surface Mine Foreman JB HAGGERMAN S 1324 80 1980 Surface Mine Foreman DOUGLAS HAGSTROM SC1560 96 1996 Surface Construction Supervisor THOMAS W. HAGY S 1332 80 1980 Surface Mine Foreman WILLIAM J. HAGY SC 2257 04 2004 Surface Construction Supervisor VICTOR K. HAINER SC 1870 98 1998 Surface Construction Supervisor CHRISTOPHER M. HAINES SC 2818 11 2011 Surface Construction Supervisor JAY C. HAINES SS 14 03 2003 Shaft and Slope Superintendent JAY C. HAINES SS 347 03 2003 Shaft & Slope Examiner Foreman MANUEL LEROY HAIRSTON S 2160 87 1987 Surface Mine Foreman ART HALE S 3016 94 1994 Surface Mine Foreman BENNY L. HALE SC572 83 1983 Surface Construction Supervisor CRAIG C. HALE S 3524 01 2001 Surface Mine Foreman GARY E. HALE SC931 91 0 Surface Construction Supervisor HAROLD CLAYTON HALE S 675 79 1979 Surface Mine Foreman JEREMY K. HALE S 3768 04 2004 Surface Mine Foreman MAX L. HALE S 4354 07 2007 Surface Mine Foreman MICHAEL R. HALE S 2123 86 1986 Surface Mine Foreman PHILLIP W. HALE S 4878 11 2011 Surface Mine Foreman DONALD A. HALEY SC 518 83 1983 Surface Construction Supervisor DONALD M. HALEY SC104 82 1982 Surface Construction Supervisor RICAHRD J. HALEY SC 514 83 1983 Surface Construction Supervisor LOWELL E. HALFHILL SC758 84 1984 Surface Construction Supervisor BRANDON K. HALL S 4364 07 2007 Surface Mine Foreman CARL HALL S 5248 14 2014 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CECIL R. HALL S 367 79 1979 Surface Mine Foreman CHARLES D. HALL S 3052 95 1995 Surface Mine Foreman CHARLES P. HALL S 1261 80 1980 Surface Mine Foreman CLIFFORD HALL SC 2862 12 2012 Surface Construction Supervisor COY HALL S 4402 08 2008 Surface Mine Foreman DONALD D. HALL S 4778 10 2010 Surface Mine Foreman GARLAND D. HALL S 4687 09 2009 Surface Mine Foreman GARY GAIL HALL S 301 79 1979 Surface Mine Foreman HARLEY E. HALL S 4150 06 2006 Surface Mine Foreman HENRY W. HALL S1761 83 1983 Surface Mine Foreman JAMES C. HALL SC 2735 10 2010 Surface Construction Supervisor JASON T. HALL S 4362 07 2007 Surface Mine Foreman JASON T. HALL S 1088 A 2007 Asst. Surface Mine Foreman JOE HALL S 981 79 1979 Surface Mine Foreman JOSEPH L. HALL S 557 79 1979 Surface Mine Foreman JOSEPH S. HALL S 2561 90 1990 Surface Mine Foreman LARRY L. HALL SC 2264 04 2004 Surface Construction Supervisor LARRY W. HALL S 182 78 1978 Surface Mine Foreman MARK A. HALL SC 2649 08 2008 Surface Construction Supervisor MARVIN MEARL HALL S 627 79 1979 Surface Mine Foreman MAXELL L. HALL SC 506 83 1983 Surface Construction Supervisor MICHAEL L. HALL S 2567 90 1990 Surface Mine Foreman NORMAN D. HALL S 1568 82 1982 Surface Mine Foreman NORMAN R. HALL S 1535 81 1981 Surface Mine Foreman RALPH HALL S 107 78 1978 Surface Mine Foreman RALPH E. HALL S 1966 84 1984 Surface Mine Foreman RAY F. HALL SC1221 95 1995 Surface Construction Supervisor RAYMOND H. HALL S 3560 01 2001 Surface Mine Foreman ROBIN D. HALL SC1543 96 1996 Surface Construction Supervisor ROGER D. HALL S 4837 10 2010 Surface Mine Foreman RONNIE S. HALL S 3891 05 2005 Surface Mine Foreman STERLING M. HALL S 3534 01 2001 Surface Mine Foreman STEVEN F. HALL S 3796 04 2004 Surface Mine Foreman TIMOTHY W. HALL S 5600 19 2019 Surface Mine Foreman WILLIAM E. HALL SC1366 95 1995 Surface Construction Supervisor JAMES B. HALL JR. S 2771 92 1992 Surface Mine Foreman DAVID R. HALL, JR. SC 2689 09 2009 Surface Construction Supervisor PARROTT HALL, JR. SC036 82 1982 Surface Construction Supervisor ROY B. HALL, JR. S 1831 84 1984 Surface Mine Foreman ROY B. HALL, JR. SC252 82 1982 Surface Construction Supervisor RAY M. HALSEY, JR. S 741 79 1979 Surface Mine Foreman KEVIN R. HALSTEAD SC 2261 04 2004 Surface Construction Supervisor MALCOLM JR. HALSTEAD S 304 79 1979 Surface Mine Foreman RONNIE H. HALSTEAD S 690 79 1979 Surface Mine Foreman SHAWN M. HALSTEAD S 4814 10 2010 Surface Mine Foreman STEPHEN J. HALUSKA SC1196 95 1995 Surface Construction Supervisor ALBERT J. HAMAKER S 1214 79 1979 Surface Mine Foreman ALFRED HAMBRICK S 770 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE EDWIN ELLIS HAMBRICK S 1455 81 1981 Surface Mine Foreman CHARLES F. HAMILL, SR. SC327 83 1983 Surface Construction Supervisor BENJAMIN F. HAMILTON S 4276 07 2007 Surface Mine Foreman EDGAR S. HAMILTON SS 21582 1982 Shaft & Slope Examiner Foreman JAMES W. HAMILTON SC909 90 1990 Surface Construction Supervisor JERRY HAMILTON S 2463 89 1989 Surface Mine Foreman LUTHER HAMILTON S 5502 18 2018 Surface Mine Foreman MARK L. HAMILTON S 4686 09 2009 Surface Mine Foreman TOBY N. HAMILTON S 5393 17 2017 Surface Mine Foreman WILLIAM HAMILTON S 2980 94 1994 Surface Mine Foreman LAWSON W. HAMILTON III S 582 79 1979 Surface Mine Foreman LARRY W. HAMILTON, II SC 3156 20 2020 Surface Construction Supervisor RICHARD F. HAMLIN S 5261 14 2014 Surface Mine Foreman AARON M. HAMM SC 2340 05 2005 Surface Construction Supervisor KARL L. HAMM SC741 84 1984 Surface Construction Supervisor LOUIS W. HAMMACK SS 23584 1984 Shaft & Slope Examiner Foreman JOHN W. HAMMAR S 2152 87 1987 Surface Mine Foreman JOHN W. HAMMAR SC222 82 1982 Surface Construction Supervisor KENNETH R. HAMMOND S 2353 88 1988 Surface Mine Foreman JOEY HAMMONDS S 5475 18 2018 Surface Mine Foreman DALE HAMMONS S 3717 03 2003 Surface Mine Foreman JOEL L. HAMMONS 36474 93 1993 Surface Mine Foreman DONALD B. HAMON S 780 79 1979 Surface Mine Foreman JOE A. HAMON S1273 81 1981 Surface Mine Foreman KEVIN L. HAMPLEMAN S 2941 93 1993 Surface Mine Foreman JARED L. HAMPTON S 5459 18 2018 Surface Mine Foreman ROGER D. HAMPTON S 3073 95 1995 Surface Mine Foreman SHON L. HAMPTON S 4961 11 2011 Surface Mine Foreman JEFFREY A. HAMRICK S 4517 08 2008 Surface Mine Foreman KYLE S. HAMRICK S 3019 94 1994 Surface Mine Foreman LINWOOD V. HAMRICK S 2387 89 1989 Surface Mine Foreman SCOTT C. HAMRICK S 5320 15 2015 Surface Mine Foreman WILLIAM J. HAMRICK S 5340 15 2015 Surface Mine Foreman PATRICK A. HANCOCK S 2782 92 1992 Surface Mine Foreman JERRY L. HANEY S 1789 83 1983 Surface Mine Foreman PAUL R. HANEY S 4229 06 2006 Surface Mine Foreman ADOLPHUS HANEY JR. SC 1997 99 1999 Surface Construction Supervisor ADOLPHUS HANEY, JR. S 5605 19 2019 Surface Mine Foreman MICHAEL A. HANKS S 5120 12 2012 Surface Mine Foreman PAUL DAVID HANKS S 967 79 1979 Surface Mine Foreman JERRY W. HANLIN S 2923 93 1993 Surface Mine Foreman JEREMY L. HANNA SC 3076 17 2017 Surface Construction Supervisor EVERETT E. HANNAH S 566 79 1979 Surface Mine Foreman JAMES E. HANNAH S 2977 94 1994 Surface Mine Foreman JAMES R. HANNAH S 3335 99 1999 Surface Mine Foreman JASON D. HANNAH S 5409 17 2017 Surface Mine Foreman ZONA L. HANNAH S 2692 91 1991 Surface Mine Foreman GARY STEVEN HANNER S 715 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOHN G. HANNER S 821 79 1979 Surface Mine Foreman GLENN HANNING JR. SC 2323 05 2005 Surface Construction Supervisor ALBERT F. HANNINGS SC250 82 1982 Surface Construction Supervisor RODNEY B. HANSFORD S 559 79 1979 Surface Mine Foreman HOMER HANSHAW S 2382 89 1989 Surface Mine Foreman JASON L. HANSHAW S 4867 10 2010 Surface Mine Foreman WILLIAM E. HAPNEY SC 2935 13 2013 Surface Construction Supervisor PAUL E. HARBERT, II S 1670 82 1982 Surface Mine Foreman JONATHON C. HARBIN SC 2973 14 2014 Surface Construction Supervisor CHARLES J. HARDER S 2262 88 1988 Surface Mine Foreman DANIEL M. HARDESTY SC 3103 18 2018 Surface Construction Supervisor HAROLD E. HARDESTY S 830 79 1979 Surface Mine Foreman JAMES L. HARDIN SS 21282 1982 Shaft & Slope Examiner Foreman KYLE HARDIN S 4849 10 2010 Surface Mine Foreman RANDUFF HARDIN S 2600 91 1991 Surface Mine Foreman SCOTT K. HARDIN S 4093 06 2006 Surface Mine Foreman ALLAN KEITH HARDING S 1916 84 1984 Surface Mine Foreman DALE HARDING S 587 79 1979 Surface Mine Foreman JOHN R. HARDING SC 521 83 1983 Surface Construction Supervisor MICHAEL L. HARDING SC 523 83 1983 Surface Construction Supervisor CHARLES R. HARDMAN SC 3073 17 2017 Surface Construction Supervisor GERALD HARDWAY S 4598 09 2009 Surface Mine Foreman JOHN A. HARDWICK SC 2252 04 2004 Surface Construction Supervisor JAMES R. HARDY S 4426 08 2008 Surface Mine Foreman JAMES R. HARDY S 1106 A 2008 Asst. Surface Mine Foreman MIKEL L. HARDY S 3120 95 1995 Surface Mine Foreman PAUL WILLIAM HARDY S 1934 84 1984 Surface Mine Foreman FLETHCHER W. HARDY III. S 1432 81 1981 Surface Mine Foreman JERRY G. HARDYMAN SC 2976 14 2014 Surface Construction Supervisor DALE D. HARLAN SC985 92 1992 Surface Construction Supervisor JOSEPH W. HARLESS S 1229 79 1979 Surface Mine Foreman KENNY R. HARLESS SC 2892 12 2012 Surface Construction Supervisor LUTHER G. HARLESS S 1315 80 1980 Surface Mine Foreman ROCKY B. HARLESS S 4251 07 2007 Surface Mine Foreman RONNIE B. HARLESS S 3103 24 1995 Asst. Surface Mine Foreman WILBERT Q. HARLESS, JR. S 5183 13 2013 Surface Mine Foreman BOBBY A. HARMAN S 4633 09 2009 Surface Mine Foreman JESSE C. HARMAN S 5170 13 2013 Surface Mine Foreman KEITH P. HARMAN SC1517 96 1996 Surface Construction Supervisor TED HARMAN S 48 78 1978 Surface Mine Foreman CASEY D. HARMON S 5603 19 2019 Surface Mine Foreman DARRICK A. HARMON S 3839 04 2004 Surface Mine Foreman HARRY T. HARNED S 2679 91 1991 Surface Mine Foreman JOHN M. HARNETT SC103 82 1982 Surface Construction Supervisor STEPHEN R. HARNETT SC1240 95 1995 Surface Construction Supervisor DEAN E. HAROLD SC1732 97 1997 Surface Construction Supervisor PAUL L. HAROLD S 686 79 1979 Surface Mine Foreman BERNIE R. HARPER S 4464 08 2008 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE BILLY JUNIOR HARPER S 605 79 1979 Surface Mine Foreman CHARLES G. HARPER S 3161 96 1996 Surface Mine Foreman CHARLES L. HARPER S 2940 93 1993 Surface Mine Foreman DANNY M. HARPER S 3985 05 2005 Surface Mine Foreman DENNIS D. HARPER SC 2810 11 2011 Surface Construction Supervisor ERNEST E. HARPER S 4949 11 2011 Surface Mine Foreman FRANK A. HARPER S 2252 87 1987 Surface Mine Foreman JAMES F. HARPER S 3718 03 2003 Surface Mine Foreman LARRY C. HARPER SC1141 94 1994 Surface Construction Supervisor LARRY D. HARPER SC1563 96 1996 Surface Construction Supervisor LLOYD H. HARPER S 725 79 1979 Surface Mine Foreman MICHAEL L. HARPER S 1550 81 1981 Surface Mine Foreman WILLIAM E. HARPER S 2138 86 1986 Surface Mine Foreman ROBERT R. HARPER, JR. S 4584 08 2008 Surface Mine Foreman CHUCK E. HARRAH S 4941 11 2011 Surface Mine Foreman LLOYD E. HARRELL SC 2616 08 2008 Surface Construction Supervisor CHARLES EDWARD HARREY S 2490 90 1990 Surface Mine Foreman FORREST DEMPSEY HARREY S 540 79 1979 Surface Mine Foreman BENJAMIN D. HARRIS S 5403 17 2017 Surface Mine Foreman CHARLES HARRIS SC085 82 1982 Surface Construction Supervisor DALE W. HARRIS SC732 84 1984 Surface Construction Supervisor DENVER R. HARRIS S 1763 83 1983 Surface Mine Foreman DONALD S. HARRIS S 5432 17 2017 Surface Mine Foreman GREGORY S. HARRIS S 4649 09 2009 Surface Mine Foreman JACKIE D. HARRIS SC 2863 12 2012 Surface Construction Supervisor JAMES R. HARRIS S 2471 90 1990 Surface Mine Foreman JODY HARRIS SC 2046 00 2000 Surface Construction Supervisor JOSEPH B. HARRIS S 5401 17 2017 Surface Mine Foreman LARRY D. HARRIS S 3639 02 2002 Surface Mine Foreman LEROY A. HARRIS SS 82 07 2007 Shaft and Slope Superintendent LYNN EARNEST HARRIS S 546 79 1979 Surface Mine Foreman PHILIP J. HARRIS S 5512 18 2018 Surface Mine Foreman RAYMOND HARRIS SC612 83 1983 Surface Construction Supervisor RAYMOND CHARLES HARRIS S 2164 87 1987 Surface Mine Foreman ROBERT M. HARRIS S 2547 90 1990 Surface Mine Foreman ROBERT M. HARRIS SC925 91 1991 Surface Construction Supervisor ROBERT P. HARRIS SC 2844 12 2012 Surface Construction Supervisor ROGER L. HARRIS SC1781 97 1997 Surface Construction Supervisor VICTOR A. HARRIS SS 28493 1993 Shaft & Slope Examiner Foreman WILLARD G. HARRIS SC874 86 1986 Surface Construction Supervisor EARL L. HARRISON SC245 82 1982 Surface Construction Supervisor GEORGE T. HARRISON S 531 79 1979 Surface Mine Foreman JOSEPH D. HARRISON S 4121 06 2006 Surface Mine Foreman MATTHEW B. HARRISON S 5042 12 2012 Surface Mine Foreman VERNON E. HARRISON S 4242 06 2006 Surface Mine Foreman VERNON E. HARRISON, JR. SC 2339 05 2005 Surface Construction Supervisor ROBERT A. HARRY SC911 90 1990 Surface Construction Supervisor JOHN E. HARSANYI S3230 97 1997 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE BRIAN D. HART SC896 89 0 Surface Construction Supervisor DAVID J. HART S 4111 06 2006 Surface Mine Foreman THOMAS A. HART S 3168 96 1996 Surface Mine Foreman SAMUEL P. HARTEIR SC1057 92 1992 Surface Construction Supervisor FRANK HARTLEY SS 26 05 2005 Shaft and Slope Superintendent HOWARD M. HARTLEY S 2694 91 1991 Surface Mine Foreman JACOB S. HARTLEY S 4912 11 2011 Surface Mine Foreman JEFFREY R. HARTLEY S 5220 14 2014 Surface Mine Foreman MARVIN R. HARTLEY S 4801 10 2010 Surface Mine Foreman MERLE O. HARTLEY SC827 86 1986 Surface Construction Supervisor RICKIE A. HARTMAN SC 1869 98 1998 Surface Construction Supervisor ROBERT L. HARTMAN III S 1328 80 1980 Surface Mine Foreman JAMES K. HARTSOG S 1770 83 1983 Surface Mine Foreman CHRISTOPHER L. HARTWELL SC 2627 08 2008 Surface Construction Supervisor JIM LOYDE HARTWELL S 761 79 1979 Surface Mine Foreman RICHARD ANDREW HARVATH S 1521 81 1981 Surface Mine Foreman CLINTON R. HARVEY SC 2840 11 2011 Surface Construction Supervisor DALLAS L. HARVEY SC1260 95 1995 Surface Construction Supervisor ELBERT JACK HARVEY S 591 79 1979 Surface Mine Foreman ELLIS L. HARVEY S 2497 90 1990 Surface Mine Foreman ERIC L. HARVEY S 5037 12 2012 Surface Mine Foreman FORREST JOSEPH HARVEY S 2496 90 1990 Surface Mine Foreman GARLAND M. HARVEY SC038 82 1982 Surface Construction Supervisor JAMES K. HARVEY S 3925 05 2005 Surface Mine Foreman JOHN S. HARVEY SC498 83 1983 Surface Construction Supervisor KEVIN J. HARVEY S 4639 09 2009 Surface Mine Foreman MICHAEL C. HARVEY S 2301 88 1988 Surface Mine Foreman PAUL M. HARVEY SS 5 03 2003 Shaft and Slope Superintendent PAUL M. HARVEY SS 341 03 2003 Shaft & Slope Examiner Foreman SONNY J. HARVEY SC049 82 1982 Surface Construction Supervisor WAYNE HARVEY S 3390 00 2000 Surface Mine Foreman WESLEY R. HARVEY SC 2336 05 2005 Surface Construction Supervisor WESTON D. HARVEY S 4497 08 2008 Surface Mine Foreman WESTON D. HARVEY S 1117 A 2008 Asst. Surface Mine Foreman CARY P. HARWOOD S 3299 98 1998 Surface Mine Foreman RONALD L. HASHMAN SC 530 83 1983 Surface Construction Supervisor GARY L. HASTINGS SC770 84 1984 Surface Construction Supervisor BOBBY HATCHER S 4858 10 2010 Surface Mine Foreman MICHAEL G. HATCHER S 1558 82 1982 Surface Mine Foreman MICHAEL J. HATCHER S 4190 06 2006 Surface Mine Foreman STEPHEN D. HATCHER SC1026 92 1992 Surface Construction Supervisor WILLIAM R. HATCHER S 5007 11 2011 Surface Mine Foreman KENNETH P. HATCHER, JR. S 4001 05 2005 Surface Mine Foreman HERB H. HATCHETTI S 1325 80 1980 Surface Mine Foreman ALFRED A. HATFIELD S 760 79 1979 Surface Mine Foreman BARTLEY HATFIELD S 4580 08 2008 Surface Mine Foreman BRANDON N. HATFIELD S 1156 A 2010 Asst. Surface Mine Foreman CHARLES B. HATFIELD S 5180 13 2013 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CHARLES G. HATFIELD S 4976 11 2011 Surface Mine Foreman DAVID M. HATFIELD S 1731 83 1983 Surface Mine Foreman FRENCH HATFIELD SC660 83 1983 Surface Construction Supervisor GREGORY L. HATFIELD S 4036 06 2006 Surface Mine Foreman JACK HATFIELD S 3128 95 1995 Surface Mine Foreman JAMES TODD HATFIELD S 4096 06 2006 Surface Mine Foreman KENNY R. HATFIELD S 4820 10 2010 Surface Mine Foreman MICHAEL S. HATFIELD S 2816 92 1992 Surface Mine Foreman PATRICK H. HATFIELD S 1029 79 1979 Surface Mine Foreman ROBIN R. HATFIELD S 4588 09 2009 Surface Mine Foreman ROBIN R. HATFIELD S 1128 A 2008 Asst. Surface Mine Foreman ROGER L. HATFIELD S 4145 06 2006 Surface Mine Foreman RONALD F. HATFIELD S 3542 01 2001 Surface Mine Foreman RONNIE M. HATFIELD S 4568 08 2008 Surface Mine Foreman TIMOTHY HATFIELD S 4999 11 2011 Surface Mine Foreman VALENTINE T. HATFIELD S 896 79 1979 Surface Mine Foreman WESLEY R. HATFIELD S 4332 07 2007 Surface Mine Foreman WESLEY R. HATFIELD S 1071 A 2006 Asst. Surface Mine Foreman WILLIAM HATFIELD S 3926 05 2005 Surface Mine Foreman MARTY R. HATFILED S 3775 04 2004 Surface Mine Foreman RICHARD L. HAUGHT SC 522 83 1983 Surface Construction Supervisor ROBERT B. HAUGHT SC586 83 1983 Surface Construction Supervisor DONALD BROSE HAUGHT JR. S 626 79 1979 Surface Mine Foreman SHAWN HAUSE S 4703 09 2009 Surface Mine Foreman WILLIAM M. HAUSERMAN SC 1921 98 1998 Surface Construction Supervisor RICHARD L. HAVERON SC 2184 02 2002 Surface Construction Supervisor DEWAYNE C. HAWK S 245 78 1978 Surface Mine Foreman THOMAS ALLEN HAWK S 1876 84 1984 Surface Mine Foreman KEVIN G. HAWKINBERRY SC1715 97 1997 Surface Construction Supervisor GEORGE A. HAWKINS SC735 84 1984 Surface Construction Supervisor LANCE HAWKINS S 1303 80 1980 Surface Mine Foreman LARRY E. HAWKINS S 2554 90 1990 Surface Mine Foreman THEODORE F. HAWKINS S 5009 11 2011 Surface Mine Foreman CHARLES C. HAWLEY III SC1777 97 1997 Surface Construction Supervisor DERRICK S. HAWVER SC 2412 06 2006 Surface Construction Supervisor JOHN F. HAY SC385 83 1983 Surface Construction Supervisor RANDALL L. HAY SC1146 94 1994 Surface Construction Supervisor THOMAS R. HAY SC1147 94 1994 Surface Construction Supervisor ERMINE H. HAYES SS 21882 1982 Shaft & Slope Examiner Foreman ERMINE H. HAYES SC629 83 1983 Surface Construction Supervisor FREDERICK L. HAYES SC1791 97 1997 Surface Construction Supervisor GREGORY A. HAYES SC1418 95 1995 Surface Construction Supervisor HOWARD H. HAYES S 3370 00 2000 Surface Mine Foreman J.BRAD HAYES SC024 82 1982 Surface Construction Supervisor JACK E. HAYES SC1140 94 1994 Surface Construction Supervisor JAMES E. HAYES SC1699 97 0 Surface Construction Supervisor ROBERT D. HAYES SC776 85 1985 Surface Construction Supervisor STEPHEN R. HAYES SC1419 95 1995 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE TERRY L. HAYES SC 2651 08 2008 Surface Construction Supervisor VICTOR R. HAYES SC251 82 1982 Surface Construction Supervisor WILLIAM HAYES SC 2506 06 2006 Surface Construction Supervisor ERIC Z. HAYHURST S 3959 05 2005 Surface Mine Foreman WILBUR C. HAYHURST SC 524 83 1983 Surface Construction Supervisor JAMES E. HAYNES S 1052 79 1979 Surface Mine Foreman JOHNATHAN L. HAYNES S 5504 18 2018 Surface Mine Foreman LESTER JAMES HAYNES S 314 79 1979 Surface Mine Foreman ROY L. HAYNES S 2396 89 1989 Surface Mine Foreman STEVE W. HAYNES S 2061 85 1985 Surface Mine Foreman ANTHONY L. HAYS SS 38 05 2005 Shaft and Slope Superintendent GLEN D. HAYS, JR. SC 544 83 1983 Surface Construction Supervisor RONALD P. HAYWORTH SC804 85 1985 Surface Construction Supervisor CARL E. HAZELETT S 1492 81 1981 Surface Mine Foreman JEREMY C. HAZELETT S 4220 06 2006 Surface Mine Foreman JEREMY C. HAZELETT S 1063 A 2005 Asst. Surface Mine Foreman TERRY L. HAZELTON SC 2865 12 2012 Surface Construction Supervisor GEORGE A. HEAD SC1001 92 1992 Surface Construction Supervisor STEPHEN D. HEADLEY SC1656 96 1996 Surface Construction Supervisor BRADLEY HEARLD SC 2712 10 2010 Surface Construction Supervisor DONALD L. HEARN SS 99 76 0 Shaft & Slope Examiner Foreman ROBERT J. HEARN SS 10677 1977 Shaft & Slope Examiner Foreman CHAD L. HEASTER SC 2614 08 2008 Surface Construction Supervisor CHRISTOPHER J. HEASTER SC 2693 09 2009 Surface Construction Supervisor MARTIN S. HEATER S 56 78 1978 Surface Mine Foreman CHRISTOPHER HEATH SC 2464 06 2006 Surface Construction Supervisor DAVID R. HEATH SC163 82 1982 Surface Construction Supervisor CHARLES P. HEATHERMAN S 203 78 1978 Surface Mine Foreman GAYLORD R. HEAVNER S 1570 82 1982 Surface Mine Foreman JOHN R. HEBB SS 6174 1974 Shaft & Slope Examiner Foreman PERRY P. HEBB S 469 79 1979 Surface Mine Foreman THOMAS E. HECK SC 1999 99 1999 Surface Construction Supervisor ROBERT L. HECK JR SC 2958 13 2013 Surface Construction Supervisor CLAUDE S. HEDRICK S 2019 85 1985 Surface Mine Foreman CLAUDE S. HEDRICK SC778 85 1985 Surface Construction Supervisor DELLAS TOMMY HEDRICK S 1917 84 1984 Surface Mine Foreman HARMAN HEDRICK S 1897 84 1984 Surface Mine Foreman JERRY L. HEDRICK SC1267 95 1995 Surface Construction Supervisor WILLIAM L. HEDRICK S 1013 79 1979 Surface Mine Foreman EMMETT B. HEDRICK, JR. SC165 82 1982 Surface Construction Supervisor WILLIAM S. HEFLIN S 3116 95 1995 Surface Mine Foreman GEORGE H. HEFNER S 2304 88 1988 Surface Mine Foreman GEORGE W. HEFNER SC070 82 1982 Surface Construction Supervisor JACK HEFNER JR. S 997 79 1979 Surface Mine Foreman WALTER M. HEIMBUCH SC106 82 1982 Surface Construction Supervisor JEFF HELLEMS S 4199 06 2006 Surface Mine Foreman THOMAS A. HELLEMS S 2921 93 1993 Surface Mine Foreman ROBERT H. HELMICK S 116 78 1978 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE VERNON D. HELMICK S 720 79 1979 Surface Mine Foreman DANA F. HELMONDOLLAR S 3191 96 1996 Surface Mine Foreman JOHN B. HELMS S 4831 10 2010 Surface Mine Foreman BILLY R. HELTON S 3218 97 1997 Surface Mine Foreman GEORGE A. HELTON S 4451 08 2008 Surface Mine Foreman GREG HELTON SC1728 97 1997 Surface Construction Supervisor RALPH HELTON SS 21782 1982 Shaft & Slope Examiner Foreman RALPH HELTON SC632 83 1983 Surface Construction Supervisor ROGER A. HELTON SS 24 05 2005 Shaft and Slope Superintendent STEVE A. HELTON S 3449 01 2001 Surface Mine Foreman ELLIS N. HELTON, JR. SS 161 79 1979 Shaft & Slope Examiner Foreman WILLIAM G. HELTZEL S 1305 80 1980 Surface Mine Foreman DALE HENDERSON S 618 79 1979 Surface Mine Foreman DAVID B. HENDERSON S 2222 87 1987 Surface Mine Foreman JOHN DALE HENDERSON S 1664 82 1982 Surface Mine Foreman MICHAEL V. HENDERSON S 5247 14 2014 Surface Mine Foreman MICHAEL V. HENDERSON S 1173 A 2013 Asst. Surface Mine Foreman LARRY W. HENDERSON, JR. SC 2409 06 2006 Surface Construction Supervisor SAMUEL G. HENDRICK S 4222 06 2006 Surface Mine Foreman GEORGE J. HENDRICKS S 2470 90 1990 Surface Mine Foreman JERRY LEE HENDRICKS S 63 78 1978 Surface Mine Foreman LEE A. HENEGAR SS 25789 1989 Shaft & Slope Examiner Foreman ROBERT S. HENLINE S 2226 87 1987 Surface Mine Foreman JEFFREY A. HENRY SC 3134 19 2019 Surface Construction Supervisor ROCKY W. HENRY S 5395 17 2017 Surface Mine Foreman CHARLES K. HENSEL SC431 83 1983 Surface Construction Supervisor KEARNEY R. HENSEL SC429 83 1983 Surface Construction Supervisor ALEX HENSLEY SC731 84 1984 Surface Construction Supervisor BRIAN K. HENSLEY S 3824 04 2004 Surface Mine Foreman CALEB L. HENSLEY S 5579 19 2019 Surface Mine Foreman KEVIN HENSLEY S 4385 07 2007 Surface Mine Foreman KEVIN HENSLEY S 1095 A 2007 Asst. Surface Mine Foreman LESTER P. HENSLEY S 3906 05 2005 Surface Mine Foreman LONNIE L. HENSLEY S 4382 07 2007 Surface Mine Foreman LOUIE A. HENSLEY S 3705 03 2003 Surface Mine Foreman MARION HENSLEY S 5431 17 2017 Surface Mine Foreman MARK A. HENSLEY S 3994 05 2005 Surface Mine Foreman ROBERT L. HENSLEY S 4443 08 2008 Surface Mine Foreman ROBERT L. HENSLEY S 1093 A 2007 Asst. Surface Mine Foreman STEVEN R. HENSLEY S 3619 02 2002 Surface Mine Foreman WILLIAM T. HENSLEY S 4128 06 2006 Surface Mine Foreman WILLIAM HENSLEY, JR. S 2591 91 1991 Surface Mine Foreman MARSHALL F. HENSON S 2882 93 1993 Surface Mine Foreman OKEY L. HENTHORN SC430 83 1983 Surface Construction Supervisor RAY E. HEPP SC 2749 10 2010 Surface Construction Supervisor CLYDE HERALD SC1034 92 1992 Surface Construction Supervisor ANDREW M. HERNANDEZ SC271 82 1982 Surface Construction Supervisor JAMES G. HERNANDEZ SC 2908 13 2013 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE GEORGE P. HERNDON SC847 86 1986 Surface Construction Supervisor WILLIAM H. HERNDON S 2994 94 1994 Surface Mine Foreman JAMES C. HERRINGTON SC 2817 11 2011 Surface Construction Supervisor BILLY B. HERSHBERGER SC601 83 1983 Surface Construction Supervisor ROBERT E. HERSHBERGER SC600 83 1983 Surface Construction Supervisor DALLAS W. HESS S 2817 92 1992 Surface Mine Foreman JOHN H. HESS S 5437 17 2017 Surface Mine Foreman KENT R. HESS SC 2963 13 2013 Surface Construction Supervisor RANDALL J. HESS S 5642 20 2020 Surface Mine Foreman ROGER L. HESS SC1430 95 1995 Surface Construction Supervisor THOMAS H. HESS, JR. S 1102 A 2008 Asst. Surface Mine Foreman ROY E. HESTER S 738 79 1979 Surface Mine Foreman JAMES R. HESTON SC1718 97 1997 Surface Construction Supervisor MARK A. HESTON SC1717 97 1997 Surface Construction Supervisor PATRICK E. HESTON SC1719 97 1997 Surface Construction Supervisor SAMUEL B. HESTON SC1721 97 1997 Surface Construction Supervisor WILLIAM R. HESTON SC1720 97 1997 Surface Construction Supervisor MICHAEL A. HESTON, II SC1716 97 1997 Surface Construction Supervisor DALE A. HETRICK SC1596 96 1996 Surface Construction Supervisor AARON T. HEWITT SC1158 94 1994 Surface Construction Supervisor ARNOLD D. HEWITT S 187 78 1978 Surface Mine Foreman VANCE J. HEWITT SC1164 94 1994 Surface Construction Supervisor DAVID W. HIBBS S 4244 06 2006 Surface Mine Foreman CARL E. HICKMAN SC 1862 98 1998 Surface Construction Supervisor DAVID K. HICKMAN SC850 86 1986 Surface Construction Supervisor DANNY HICKS SC 2352 05 2005 Surface Construction Supervisor JEREMY A. HICKS SC 3165 20 2020 Surface Construction Supervisor JODY L. HICKS SC 2878 12 2012 Surface Construction Supervisor JOSEPH E. HICKS S 3371 00 2000 Surface Mine Foreman LARRY E. HICKS SC 2770 11 2011 Surface Construction Supervisor RICKY A. HICKS SC972 92 1992 Surface Construction Supervisor STEVEN J. HICKS S 4632 09 2009 Surface Mine Foreman VERNON L. HICKS SC1177 94 1994 Surface Construction Supervisor WILLIE L. HICKS SC 2234 03 2003 Surface Construction Supervisor WILLIE L. HICKS RBS 5 19 2019 Raised Bore/Blind Drilling Super. ANTONIO C. HICKS, JR. S 4300 07 2007 Surface Mine Foreman JOE A. HICKS, JR. S 3621 02 2002 Surface Mine Foreman LUTHER E. HICKS, JR. S 2983 94 1994 Surface Mine Foreman THOMAS S. HIDOCK S 1854 84 1984 Surface Mine Foreman MARVIN D. HIENEMAN S 2400 89 1989 Surface Mine Foreman GEORGE W. HIGGINBOTHAM SC788 85 1985 Surface Construction Supervisor JAMES D. HIGGINBOTHAM SC1850 97 1997 Surface Construction Supervisor LEWIS J. HIGGINBOTHAM S 2103 86 1986 Surface Mine Foreman RICHARD L. HIGGINBOTHAM SC 1985 99 1999 Surface Construction Supervisor WILLIAM B. HIGHTOWER S 120 78 1978 Surface Mine Foreman WILLIAM L. HIGHTOWER S 119 78 1978 Surface Mine Foreman GEORGE A. HILBERT S 4806 10 2010 Surface Mine Foreman JEFFREY P. HILDEBRAND SC1175 94 1994 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ADAM G. HILL SC 2769 11 2011 Surface Construction Supervisor ANTHONY HILL S 4743 10 2010 Surface Mine Foreman CHARLES A. HILL SS 15479 1979 Shaft & Slope Examiner Foreman GREGORY W. HILL SC 170197 1997 Surface Construction Supervisor HAROLD E. HILL s 113 78 1978 Surface Mine Foreman JEFFREY L. HILL S 95 78 1978 Surface Mine Foreman JERRY L. HILL SC873 86 1986 Surface Construction Supervisor JOHN T. HILL SC1148 94 1994 Surface Construction Supervisor LARRY R. HILL S 471 80 1980 Surface Mine Foreman MICHAEL D. HILL S 5454 17 2017 Surface Mine Foreman MICHAEL H. HILL S 2437 89 1989 Surface Mine Foreman MICHAEL J. HILL S 791 79 1979 Surface Mine Foreman ROBERT A. HILL S 4353 07 2007 Surface Mine Foreman SCOTFORD O. HILL S 2336 88 1988 Surface Mine Foreman REEVES B. HILL II S 3841 04 2004 Surface Mine Foreman GEORGE W. HILL, JR. S 790 97 1979 Surface Mine Foreman JACK H. HILL, JR. SC1685 96 1996 Surface Construction Supervisor DONALD E. HILTON SC650 83 1983 Surface Construction Supervisor DONALD R. HILTON S 1818 83 1983 Surface Mine Foreman BOBBY HILTON, JR. S 4576 08 2008 Surface Mine Foreman GENE T. HILTON, JR. S 1346 80 1980 Surface Mine Foreman JOHN A. HILTY SC1521 96 1996 Surface Construction Supervisor MICHAEL P. HINES SC 2242 04 2004 Surface Construction Supervisor ROBERT A. HINES S 1623 82 1982 Surface Mine Foreman DALE H. HINKLE SC 2763 10 2010 Surface Construction Supervisor DAVID E. HINKLE S 1594 82 1982 Surface Mine Foreman DELMAS D. HINKLE SC439 83 1983 Surface Construction Supervisor JAMES B. HINKLE S 111 78 1978 Surface Mine Foreman JAMES E. HINKLE S 5633 20 2020 Surface Mine Foreman MICHAEL D. HINKLE S 3519 01 2001 Surface Mine Foreman OTHA CARLESTON HINKLE S 457 79 1979 Surface Mine Foreman PHILIP L. HINKLE SC 2762 10 2010 Surface Construction Supervisor SHAWN D. HINKLE SC 2761 10 2010 Surface Construction Supervisor SPURGEON D. HINKLE S 265 79 1979 Surface Mine Foreman STERLING R. HINKLE SC 548 83 1983 Surface Construction Supervisor VICTOR HINOJOS SC 2728 10 2010 Surface Construction Supervisor LESLIE A. HIPP S 813 79 1979 Surface Mine Foreman ALVIN E. HISSAN SC 2760 10 2010 Surface Construction Supervisor WILLIAM D. HITCHCOCK S 1775 83 1983 Surface Mine Foreman RONALD THOMAS HITCHINS S 1898 84 1984 Surface Mine Foreman BILLY L. HITT SS 6 03 2003 Shaft and Slope Superintendent BILLY L. HITT SS 342 03 2003 Shaft & Slope Examiner Foreman ELVIS R. HITT S 2140 86 1986 Surface Mine Foreman RICK D. HITT SC1495 96 1996 Surface Construction Supervisor CHARLES HLEBICZKI JR. SC 3035 16 2016 Surface Construction Supervisor JOEY A. HOBSON SC 2561 07 2007 Surface Construction Supervisor KENNETH F. HODAK S 1835 84 1984 Surface Mine Foreman PAUL B. HODGE S 15782 1982 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILLIAM R. HODGER S 24 78 1978 Surface Mine Foreman DORSEL HODGES SC1737 97 1997 Surface Construction Supervisor JAMES D. HODGES S 3342 99 1999 Surface Mine Foreman JOHN F. HODGES SC1741 97 1997 Surface Construction Supervisor ROGER A. HODGES SC1739 97 1997 Surface Construction Supervisor DANIEL M. HODGKISS S 2195 87 1987 Surface Mine Foreman SAMUEL K. HODGSON SC069 82 1982 Surface Construction Supervisor PAUL J. HODOS SC382 83 1983 Surface Construction Supervisor RALPH L. HODSON S 3002 94 1994 Surface Mine Foreman ERNEST E. HOFER S 1092 79 1979 Surface Mine Foreman JEFFREY D. HOFF S 4899 11 2011 Surface Mine Foreman CARL VAL HOFFMAN S 3096 95 1995 Surface Mine Foreman MATTHEW J. HOFFMAN SC 2898 12 2012 Surface Construction Supervisor JOHN W. HOGSTON SC 2968 13 2013 Surface Construction Supervisor RALPH DOUGLAS HOGSTON S 2349 88 1988 Surface Mine Foreman JAMES P. HOKE SC 2931 13 2013 Surface Construction Supervisor MATTHEW D. HOKE S 4589 09 2009 Surface Mine Foreman ALLEN HOLBERT SS 18280 1980 Shaft & Slope Examiner Foreman ALLEN HOLBERT SC1770 97 1997 Surface Construction Supervisor JAMES C. HOLBERT SC117 82 1982 Surface Construction Supervisor JAMES C. HOLBERT, JR. SC 515 83 1983 Surface Construction Supervisor BURL A. HOLBROOK S 1389 80 1980 Surface Mine Foreman JOHN L. HOLBROOK SC 1906 98 1998 Surface Construction Supervisor TIMOTHY S. HOLBROOK SC 2014 99 1999 Surface Construction Supervisor CHRISTOPHER S. HOLCOMB SC 2294 05 2005 Surface Construction Supervisor CLINTON R HOLCOMB S 3267 98 1998 Surface Mine Foreman ROBERT L. HOLCOMB SC 2085 01 2001 Surface Construction Supervisor CHARLES R. HOLDEN S 198 78 1978 Surface Mine Foreman BILLY J. HOLDREN SC1218 95 1995 Surface Construction Supervisor MARK HOLDREN SC 2647 08 2008 Surface Construction Supervisor THOMAS W. HOLEMAN, JR. SS 20781 1981 Shaft & Slope Examiner Foreman RAY HOLESTIN S 31 78 1978 Surface Mine Foreman LESTER L. HOLLAND S 4856 10 2010 Surface Mine Foreman PAUL C. HOLLAND S 2864 92 1992 Surface Mine Foreman STEPHEN R. HOLLAND SC1133 94 1994 Surface Construction Supervisor GERALD W. HOLLANDSWORTH SC736 84 1984 Surface Construction Supervisor DAVID W. HOLLEY SC246 82 1982 Surface Construction Supervisor KERMIT A. HOLLIDAY S 151 84 1984 Surface Mine Foreman KENNETH A. HOLLIDAY JR. S 870 79 1979 Surface Mine Foreman ROBERT D. HOLLIS SM2036 85 1985 Surface Mine Foreman RONDEL L. HOLLON S 3403 00 2000 Surface Mine Foreman JOSEPH C. HOLLY, III S 2167 87 1987 Surface Mine Foreman JONATHAN A. HOLLYFIELD S 5598 19 2019 Surface Mine Foreman CHRISTOPHER D. HOLMES S 4298 07 2007 Surface Mine Foreman WILLIAM D. HOLMES S 3474 01 2001 Surface Mine Foreman WILLIAM D. HOLMES SC1190 94 0 Surface Construction Supervisor WILLIAM D. HOLMES SC 119094 1994 Surface Construction Supervisor JEREMY M. HOLOKA SS 374 05 2005 Shaft & Slope Examiner Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE EARL L. HOLSTEIN S 3858 04 2004 Surface Mine Foreman GRATTEN L. HOLSTEIN SC1311 95 1995 Surface Construction Supervisor HOMER C. HOLSTEIN S 1465 81 1981 Surface Mine Foreman RODNEY V. HOLSTEIN SC 2106 01 2001 Surface Construction Supervisor TERRY F. HOLSTEIN SC 2522 07 2007 Surface Construction Supervisor CLINTON W. HOLT SC 3150 20 2020 Surface Construction Supervisor GUY E. HOLT SC1090 93 1993 Surface Construction Supervisor RANDALL L. HOLT S 5132 13 2013 Surface Mine Foreman LESLIE L. HOLTSMAN SS 22784 1984 Shaft & Slope Examiner Foreman DAVID L. HONAKER SC 2780 11 2011 Surface Construction Supervisor JAMES C. HONAKER SC 550 83 1983 Surface Construction Supervisor MAYNARD B. HONAKER S 1640 82 1982 Surface Mine Foreman JAMES L. HOOD S 3054 95 1995 Surface Mine Foreman LESLIE R. HOOKER SC 2195 03 2003 Surface Construction Supervisor JEFFREY A. HOOPS S2696 91 1991 Surface Mine Foreman MARK E. HOOSER S 3777 04 2004 Surface Mine Foreman COREY K. HOOVER S 5306 15 2015 Surface Mine Foreman PERRY I. HOOVER S2325 88 1988 Surface Mine Foreman CHARLES C. HOPKINS S 664 79 1979 Surface Mine Foreman CLIFFORD E. HOPKINS SC617 83 1983 Surface Construction Supervisor DANIEL R. HOPKINS S 317 79 1979 Surface Mine Foreman JACKIE W. HOPKINS S 3177 96 1996 Surface Mine Foreman RONALD J. HOPKINS S 27 78 1978 Surface Mine Foreman WILLARD J. HOPKINS S 108 78 1978 Surface Mine Foreman LARRY J. HOPSON S 4625 09 2009 Surface Mine Foreman WELDON M. HOPSON SS 22 05 2005 Shaft and Slope Superintendent CHARLES T. HORN S 3344 99 1999 Surface Mine Foreman DONALD HORN S 1283 80 1980 Surface Mine Foreman JOEY R. HORN S 5573 19 2019 Surface Mine Foreman MARK D. HORN S 5018 12 2012 Surface Mine Foreman MICHAEL L. HORN S 3849 04 2004 Surface Mine Foreman KERRY L. HORNER SC120 82 1982 Surface Construction Supervisor STEPHEN P. HORNING SC 2004 99 1999 Surface Construction Supervisor JAMES W. HORNSBY SC418 83 1983 Surface Construction Supervisor JAY A. HORNSBY S 3456 01 2001 Surface Mine Foreman MIKE E. HORROCKS S 3914 05 2005 Surface Mine Foreman TERRY A. HORROCKS SC 2167 02 2002 Surface Construction Supervisor WILLIAM E. HORTON, JR. SC 559 83 1983 Surface Construction Supervisor DAVID B. HOSEY SS 20481 1981 Shaft & Slope Examiner Foreman LARKIN D. HOSKINS S 2549 90 1990 Surface Mine Foreman DALTON J. HOSMER SS 59 74 1974 Shaft & Slope Examiner Foreman EARL T. HOSMER SS 15379 1979 Shaft & Slope Examiner Foreman JAMES D. HOSMER SS 155 79 1979 Shaft & Slope Examiner Foreman JAMES D. HOSMER SC647 83 1983 Surface Construction Supervisor LINDOL R. HOSSLER S 572 79 1979 Surface Mine Foreman LAWRENCE ROBERT HOST S 623 79 1979 Surface Mine Foreman JAMES MANUEL HOSTETTER S 10 78 1978 Surface Mine Foreman WILLIAM C. HOUATTER S 1828 84 1984 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DAVID C. HOUCK S 4906 11 2011 Surface Mine Foreman DAVID C. HOUCK S 1161 A 2011 Asst. Surface Mine Foreman WINSTON R. HOUCK SC1319 95 1995 Surface Construction Supervisor WINSTON RAYMOND HOUCK S 9 78 1978 Surface Mine Foreman CORBIE D. HOUNSNELL S 1168 79 1979 Surface Mine Foreman MIKE HOVEN SC 2189 02 2002 Surface Construction Supervisor CARL E. HOWARD SC576 83 1983 Surface Construction Supervisor CHRISTOPHER S. HOWARD S 2339 88 1988 Surface Mine Foreman DANNY B. HOWARD S 3790 04 2004 Surface Mine Foreman JAMES HOWARD S 5027 12 2012 Surface Mine Foreman JAMES D. HOWARD S 2414 89 1989 Surface Mine Foreman JERRY L. HOWARD SC1848 97 1997 Surface Construction Supervisor JERRY R. HOWARD S 2506 90 1990 Surface Mine Foreman JOHN R. HOWARD SC620 83 1983 Surface Construction Supervisor MICHAEL S. HOWARD S 3307 98 1998 Surface Mine Foreman RICKY HOWARD S 3389 00 2000 Surface Mine Foreman LACY HOWARD, JR. S 4841 10 2010 Surface Mine Foreman CHAD A. HOWDERSHELT S 3211 97 1997 Surface Mine Foreman CHAD A. HOWDERSHELT SC 2410 06 2006 Surface Construction Supervisor CHARLES J. HOWDERSHELT S 3593 02 2002 Surface Mine Foreman CHARLES R. HOWDERSHELT S 1634 82 1982 Surface Mine Foreman GARY A. HOWDERSHELT S2559 90 1990 Surface Mine Foreman CHETTY B. HOWELL S 3358 99 1999 Surface Mine Foreman EDWARD N. HOWELL S 4062 06 2006 Surface Mine Foreman HAROLD P. HOWELL S 2666 91 1991 Surface Mine Foreman HOWARD W. HOWELL S 96 78 1978 Surface Mine Foreman JAMES A. HOWELL S 4699 09 2009 Surface Mine Foreman JOHN T. HOWELL SC900 90 0 Surface Construction Supervisor ROY L. HOWELL S 687 79 1979 Surface Mine Foreman TANUAL R. HOWELL S 4084 06 2006 Surface Mine Foreman TRAVIS L. HOWELL S 5511 18 2018 Surface Mine Foreman MICHAEL R. HOWERTON S 3678 03 2003 Surface Mine Foreman DANIEL L. HOYLE SC464 83 1983 Surface Construction Supervisor CARL L. HUBBARD S 2989 94 1994 Surface Mine Foreman DAVID L. HUBBARD S 3905 05 2005 Surface Mine Foreman DAVID P. HUBBARD S2142 86 1986 Surface Mine Foreman MICHAEL E. HUBBARD S 5619 19 2019 Surface Mine Foreman DENNIS HUBER SC1694 97 1997 Surface Construction Supervisor CLIFTON E. HUCKLEBERRY S 5270 14 2014 Surface Mine Foreman BELVIN HUDDLE S 3868 05 2005 Surface Mine Foreman BRYAN K. HUDDLE S 3676 03 2003 Surface Mine Foreman STEPHEN R. HUDDLESTON S 1174 A 2013 Asst. Surface Mine Foreman JERRY M. HUDKINS S 4655 09 2009 Surface Mine Foreman BENJAMIN L. HUDNALL S 3381 00 2000 Surface Mine Foreman GEORGE W. HUDNALL S2715 91 1991 Surface Mine Foreman GREGORY W. HUDNALL S 4972 11 2011 Surface Mine Foreman JOHN E. HUDNALL SC169 82 1982 Surface Construction Supervisor MONTY L. HUDNALL S 4252 07 2007 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ROBERT B. HUDNALL S 3411 00 2000 Surface Mine Foreman THOMAS E. HUDNALL S 1312 80 1980 Surface Mine Foreman JAMES M. HUDSON S 2705 91 1991 Surface Mine Foreman JIMMY B. HUDSON S 3066 95 1995 Surface Mine Foreman JIMMY B. HUDSON SC1201 95 1995 Surface Construction Supervisor JIMMY E. HUDSON SC353 83 1983 Surface Construction Supervisor LARRY M. HUDSON S 2713 91 1991 Surface Mine Foreman LAWRENCE HUDSON S 4011 05 2005 Surface Mine Foreman PEARL D. HUDSON S 2962 94 1994 Surface Mine Foreman WILLIE HUDSON, JR. S 2652 91 1991 Surface Mine Foreman ROBERT M. HUEY SC 3152 20 2020 Surface Construction Supervisor JOSHUA B. HUFF S 5510 18 2018 Surface Mine Foreman MELVIN WAYNE HUFF S 1110 79 1979 Surface Mine Foreman MICHAEL C. HUFF SC 2881 12 2012 Surface Construction Supervisor ROBERT E. HUFF SC1210 95 1995 Surface Construction Supervisor BILLIE J. HUFFMAN S 5191 13 2013 Surface Mine Foreman DOUGLAS C. HUFFMAN S 287 79 1979 Surface Mine Foreman KYLE J. HUFFMAN S 577 79 1979 Surface Mine Foreman MICHAEL R. HUFFMAN S 3904 05 2005 Surface Mine Foreman RALPH HUFFMAN S 681 79 1979 Surface Mine Foreman ROBERT G. HUFFMAN S 1401 82 1982 Surface Mine Foreman TROY R. HUFFMAN SC 2633 08 2008 Surface Construction Supervisor WALTER L. HUFFMAN S 1358 80 1980 Surface Mine Foreman KEITH A. HUFFMAN II S 5568 19 2019 Surface Mine Foreman NICHOLAS S. HUGHART S 5550 18 2018 Surface Mine Foreman BRUCE HUGHES S 743 79 1979 Surface Mine Foreman CHARLES V. HUGHES S 312 79 1979 Surface Mine Foreman CLARENCE E. HUGHES S 876 79 1979 Surface Mine Foreman CLIVE HUGHES S 2386 89 1989 Surface Mine Foreman DOUGLAS L. HUGHES S 2139 86 1986 Surface Mine Foreman EARL E. HUGHES SC393 83 1983 Surface Construction Supervisor GEORGE D. HUGHES SC153 82 1982 Surface Construction Supervisor GERALD W. HUGHES S 3464 01 2001 Surface Mine Foreman JACKIE R. HUGHES SM 1309 80 1980 Surface Mine Foreman LARRY C. HUGHES S 586 79 1979 Surface Mine Foreman LARRY L. HUGHES SC1802 97 1997 Surface Construction Supervisor LEO E. HUGHES SC235 82 1982 Surface Construction Supervisor ROBERT T. HUGHES SC190 82 1982 Surface Construction Supervisor RICHARD L. HUGHES, JR. S 5387 16 2016 Surface Mine Foreman DAVID R. HULL SC884 87 0 Surface Construction Supervisor EARL W. HULL SC094 82 1982 Surface Construction Supervisor TIMOTHY A. HULL SC1330 95 1995 Surface Construction Supervisor WILLIAM T. HULL S1202 79 1979 Surface Mine Foreman MICHAEL D. HULLINGER SC 2853 12 2012 Surface Construction Supervisor DANIEL H. HULSEY S 5496 18 2018 Surface Mine Foreman JUSTIN J. HUMBERTSON SC 2868 12 2012 Surface Construction Supervisor CHARLES R. HUMPHREY S 2854 92 1992 Surface Mine Foreman SHELBY G. HUMPHREYS S 3199 97 1997 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DAVID HUNDLEY S 5441 17 2017 Surface Mine Foreman ERIC S. HUNDLEY S 4163 06 2006 Surface Mine Foreman JAMIE J. HUNDLEY S 3531 01 2001 Surface Mine Foreman BARRY W. HUNT S 4910 11 2011 Surface Mine Foreman BENJAMIN J. HUNT S 2530 90 1990 Surface Mine Foreman BILLY HUNT S 2651 91 1991 Surface Mine Foreman BRANDON S. HUNT SC 2992 14 2014 Surface Construction Supervisor BRIAN HUNT S 4604 09 2009 Surface Mine Foreman CHARLES HUNT S 4866 10 2010 Surface Mine Foreman CHARLES GOLDEN HUNT S 771 79 1979 Surface Mine Foreman HENRY I. HUNT SC840 86 1986 Surface Construction Supervisor JAMES R. HUNT S 4737 10 2010 Surface Mine Foreman JOSEPH R. HUNT S 4579 08 2008 Surface Mine Foreman KEVIN D. HUNT SC 3105 18 2018 Surface Construction Supervisor KUBA J. HUNT S 2950 93 1993 Surface Mine Foreman LARRY B. HUNT S 510 79 1979 Surface Mine Foreman CARL L. HUNTER S 1652 82 1982 Surface Mine Foreman DONALD D. HUNTER S 5336 15 2015 Surface Mine Foreman GREGORY A. HUNTER S 4017 05 2005 Surface Mine Foreman HODGE S. HUNTER S 5629 20 2020 Surface Mine Foreman JOHN M. HUNTER SC779 85 1985 Surface Construction Supervisor RICKY G. HUNTER S 3213 97 1997 Surface Mine Foreman RICKY G. HUNTER S 3213 97 1997 Shaft & Slope Examiner Foreman ROSTON W. HUNTER S 4035 06 2006 Surface Mine Foreman ARCH G. HUNTER, JR. S 3556 01 2001 Surface Mine Foreman BOBBY D. HURLEY S 5050 12 2012 Surface Mine Foreman BOYD HURLEY S 1609 82 1982 Surface Mine Foreman GEORGE G. HURLEY S 2005 85 1985 Surface Mine Foreman GREGORY A. HURLEY SC1544 96 1996 Surface Construction Supervisor JAMES G. HURLEY S 1883 84 1984 Surface Mine Foreman JODY A. HURLEY S 1132 A 2009 Asst. Surface Mine Foreman KENITH D. HURLEY S 3536 01 2001 Surface Mine Foreman LARRY D. HURLEY S 4634 09 2009 Surface Mine Foreman MARK C. HURLEY SC1542 96 1996 Surface Construction Supervisor ROGER L. HURLEY S 2964 94 1994 Surface Mine Foreman TERRY D. HURLEY SC1628 96 1996 Surface Construction Supervisor WILLIAM E. HURLEY S2778 92 1992 Surface Mine Foreman CHARLES G. HURLRY S 2596 91 1991 Surface Mine Foreman PAUL L. HURST S 3747 04 2004 Surface Mine Foreman PAUL L. HURST S 1033 A 2003 Asst. Surface Mine Foreman ROBERT LEE HURST S 1342 80 1980 Surface Mine Foreman ELI HUSCUSSON S 154 78 1978 Surface Mine Foreman HAROLD D. HUTCHENS S 766 79 1979 Surface Mine Foreman ROGER A. HUTCHINSON S 2507 90 1990 Surface Mine Foreman JAMES A. HUTCHISON SC904 90 1990 Surface Construction Supervisor EDWARD E. HUTTON S 332 79 1979 Surface Mine Foreman EWING E. HUTTON S 65 78 1978 Surface Mine Foreman KENNETH R. HUTTON S 4301 07 2007 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILBUR R. HUTZEL S 2725 91 1991 Surface Mine Foreman DAVID L. HUXLEY SC1181 94 1994 Surface Construction Supervisor CHARLES E. HYATT S 1215 79 1979 Surface Mine Foreman JAMES E. HYDE SS 21682 1982 Shaft & Slope Examiner Foreman JAMES E. HYDE SC639 83 1983 Surface Construction Supervisor JIMMY D. HYLTON S 5269 14 2014 Surface Mine Foreman LUTHER C. HYLTON SC1465 95 1995 Surface Construction Supervisor TRACY WARREN II HYLTON S 228 78 1978 Surface Mine Foreman JAMES L. HYND S 4544 08 2008 Surface Mine Foreman THOMAS R. HYPES S 4425 08 2008 Surface Mine Foreman BOBBY E. HYPES JR. SC 2086 01 2001 Surface Construction Supervisor BOBBY E. HYPES, JR. S 3921 05 2005 Surface Mine Foreman CHARLES C. ICENHOUR S 1209 79 1979 Surface Mine Foreman CHARLES L. ICENHOUR S 1220 79 1979 Surface Mine Foreman ROBERT W. ICKES, JR. SC154 82 1982 Surface Construction Supervisor DWIGHT E. IDLEMAN S 1877 84 1984 Surface Mine Foreman WILLIAM C. IDLEMAN S 1899 84 1984 Surface Mine Foreman JOSHUA B. ILDERTON S 4319 07 2007 Surface Mine Foreman JOSHUA B. ILDERTON SC 2495 06 2006 Surface Construction Supervisor DONALD B. INGRAM S 2970 94 1994 Surface Mine Foreman HASTON S. INGRAM S 2456 89 1989 Surface Mine Foreman RODNEY D. INGRAM S 2092 86 1986 Surface Mine Foreman JOHN J. IREY SC060 82 1982 Surface Construction Supervisor WILLIAMS G. IREY SC059 82 1982 Surface Construction Supervisor MATTHEW K. IRICK S 5427 17 2017 Surface Mine Foreman MICHAEL W. IRVIN SC951 91 1991 Surface Construction Supervisor ROBERT L. IRVIN S 5549 18 2018 Surface Mine Foreman FRANK W. ISAACS SC899 89 0 Surface Construction Supervisor MIKE W. ISABELL S 3580 02 2002 Surface Mine Foreman ALAN W. ISIMINGER SC1021 92 0 Surface Construction Supervisor THOMAS W. ISIMINGER SS 23885 1985 Shaft & Slope Examiner Foreman CHARLES W. ISNER S 827 79 1979 Surface Mine Foreman KARU ISON SC715 84 1984 Surface Construction Supervisor CLARK A. JACK SC881 87 0 Surface Construction Supervisor KENNETH G. JACKS S 157 78 1978 Surface Mine Foreman KENNETH G. JACKS SC738 84 1984 Surface Construction Supervisor AARON D. JACKSON SS 76 07 2007 Shaft and Slope Superintendent ARTHUR A. JACKSON S 2858 92 1992 Surface Mine Foreman CARSON H. JACKSON S 521 79 1979 Surface Mine Foreman CHADWICK D. JACKSON S 5506 18 2018 Surface Mine Foreman CLIFFORD A. JACKSON S 4134 06 2006 Surface Mine Foreman DOUGLAS R. JACKSON SC 1991 99 1999 Surface Construction Supervisor FRED E. JACKSON S 1322 80 1980 Surface Mine Foreman ALBERT J. GREGORY SC404 83 1983 Surface Construction Supervisor HOWARD E. JACKSON SC1299 95 1995 Surface Construction Supervisor JAMES R. JACKSON C03 75 1975 Clay Mine Foreman JOHNNY L. JACKSON SC1508 96 1996 Surface Construction Supervisor LARRY D. JACKSON SC484 83 1983 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE LEON JACKSON SC390 83 1983 Surface Construction Supervisor MICHAEL A. JACKSON S 5081 12 2012 Surface Mine Foreman MICHAEL J. JACKSON SS 28993 1993 Shaft & Slope Examiner Foreman MICHAEL J. JACKSON SC1661 96 1996 Surface Construction Supervisor NIXON S. JACKSON S 733 79 1979 Surface Mine Foreman NIXON S. JACKSON SC178 82 1982 Surface Construction Supervisor NORMAN JACKSON S 1528 81 1981 Surface Mine Foreman RANDY L. JACKSON SC1746 97 1997 Surface Construction Supervisor ROBERT A. JACKSON SC1691 97 1997 Surface Construction Supervisor ROGER E. JACKSON SC1509 96 1996 Surface Construction Supervisor RONNIE W. JACKSON SC176 82 1982 Surface Construction Supervisor STEVEN R. JACKSON S 3458 01 2001 Surface Mine Foreman STEVEN R. JACKSON SC 2011 99 1999 Surface Construction Supervisor WILLIAM B. JACKSON S 3298 98 1998 Surface Mine Foreman WILLIAM J. JACKSON SC 2211 03 2003 Surface Construction Supervisor CLIFTON D. JACOBS S 5610 19 2019 Surface Mine Foreman LUCKY J. JACOBS S 1756 83 1983 Surface Mine Foreman WILLIAM G. JACOBS S 192 78 1978 Surface Mine Foreman GLENN C. JACOBSON SS 73 07 2007 Shaft and Slope Superintendent NATHANIEL JACQUEZ SS 127 19 2019 Shaft and Slope Superintendent CHUCK JAKI SC1074 93 1993 Surface Construction Supervisor JOHN M. JAMES S3227 97 1997 Surface Mine Foreman JOHN M. JAMES SC775 85 1985 Surface Construction Supervisor JOHN M. JAMES SC1795 97 1997 Surface Construction Supervisor JOSEPH C. JAMESON SC 2149 01 2001 Surface Construction Supervisor RICHARD P. JAMIESON S 3000 94 1994 Surface Mine Foreman GERALD JAMISON S 941 79 1979 Surface Mine Foreman JOHN G. JANNEY SM 255 79 1979 Surface Mine Foreman michael j. jarosz SM 864 79 1979 Surface Mine Foreman ARTIE G. JARRELL SC1842 97 1997 Surface Construction Supervisor CONWAY V. JARRELL S 4058 06 2006 Surface Mine Foreman ESCHOL P. JARRELL SC787 85 1985 Surface Construction Supervisor HAROLD EDDIE JARRELL SC716 84 1984 Surface Construction Supervisor JACKIE L. JARRELL S 4153 06 2006 Surface Mine Foreman KEVIN JARRELL S 4668 09 2009 Surface Mine Foreman KEVIN L. JARRELL S 1129 A 2008 Asst. Surface Mine Foreman LESLIE R. JARRELL S 4741 10 2010 Surface Mine Foreman LEWIS E. JARRELL SC 2293 05 2005 Surface Construction Supervisor ROBERT D. JARRELL S 3815 04 2004 Surface Mine Foreman SHELBY JARRELL S 360 79 1979 Surface Mine Foreman STEPHEN F. JARRELL SC1796 97 1997 Surface Construction Supervisor TRAVIS M. JARRELL S 3928 05 2005 Surface Mine Foreman TRAVIS M. JARRELL S 1027 A 2003 Asst. Surface Mine Foreman GERALD T. JARRETT S 3011 94 1994 Surface Mine Foreman TODD R. JARRETT S 4494 08 2008 Surface Mine Foreman GERALD T. JARRETT, JR. SC1745 97 1997 Surface Construction Supervisor JAMES E. JARRETT, JR. SC831 86 1986 Surface Construction Supervisor CRAIG K. JARVIS SC903 90 1990 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JASON J. JARVIS S 3726 03 2003 Surface Mine Foreman LOWELL T. JARVIS SS 15679 1979 Shaft & Slope Examiner Foreman MARK E. JARVIS S 4046 06 2006 Surface Mine Foreman ROBERT D. JARVIS SC 2094 01 2001 Surface Construction Supervisor Charlse P. Jeffery S 1678 82 1982 Surface Mine Foreman JOHN P. JEFFERY SC 2694 09 2009 Surface Construction Supervisor DAVID G. JEFFREY S 3470 01 2001 Surface Mine Foreman JOHN P. JEFFREY S 4231 06 2006 Surface Mine Foreman JOHN P. JEFFREY S 1062 A 2005 Asst. Surface Mine Foreman ALAN E. JEFFRIES SC331 83 1983 Surface Construction Supervisor KAROL LEE JEFFRIES S 1404 81 1981 Surface Mine Foreman WAYNE J. JENEWEIN S 4195 -1 6 Surface Mine Foreman JAMES B. JENKINS SC672 83 1983 Surface Construction Supervisor JOHN W. JENKINS S 1243 80 1980 Surface Mine Foreman MARVIN P. JENKINS S 1811 83 1983 Surface Mine Foreman MICHAEL J. JENKINS S 278 78 1979 Surface Mine Foreman RANDY D. JENKINS SC 3032 16 2016 Surface Construction Supervisor ROCKY L. JENKINS S 5021 12 2012 Surface Mine Foreman LEROY JENKINS, JR. SS 36 05 2005 Shaft and Slope Superintendent JEFFERY B. JENKINSON SC 2671 09 2009 Surface Construction Supervisor HADLEY A. JENKS S 926 79 1979 Surface Mine Foreman ALDEN B. JENNINGS S 700 79 1979 Surface Mine Foreman DOUGLAS JENNINGS S 4180 06 2006 Surface Mine Foreman FRANK D. JENNINGS SC183 82 1982 Surface Construction Supervisor FRANKLIN M. JENNINGS S 2300 88 1988 Surface Mine Foreman MAURICE JR. JENNINGS S 697 79 1979 Surface Mine Foreman ROBERT E. JENNINGS S 2565 90 1990 Surface Mine Foreman HAROLD L. JENSEN SC405 83 1983 Surface Construction Supervisor ROY JENT S 4674 09 2009 Surface Mine Foreman JOSEPH W. JERAN SC986 92 1992 Surface Construction Supervisor ROBERT R. JERAN SC987 92 1992 Surface Construction Supervisor ROBERT L. JERRELS S 3373 00 2000 Surface Mine Foreman PAUL K. JESKO SC1427 95 1995 Surface Construction Supervisor DAVID JEWELL S 3722 03 2003 Surface Mine Foreman JAMES JEWELL, JR. S 1817 83 1983 Surface Mine Foreman KENNETH J. JOB SC886 87 1987 Surface Construction Supervisor MATTHEW J. JOHNER S 5190 13 2013 Surface Mine Foreman ANTHONY B. JOHNSON S 5251 14 2014 Surface Mine Foreman ANTHONY B. JOHNSON S 1142 A 2010 Asst. Surface Mine Foreman BOBBY JOHNSON SC292 83 1983 Surface Construction Supervisor BOBBY G. JOHNSON SC1750 97 1997 Surface Construction Supervisor BRENT E. JOHNSON S 5472 18 2018 Surface Mine Foreman BRIAN L. JOHNSON S 2769 92 1992 Surface Mine Foreman CHARLES D. JOHNSON S 364 79 1979 Surface Mine Foreman CHARLES D. JOHNSON SC206 82 1982 Surface Construction Supervisor CHRISTOPHER S. JOHNSON S 5391 17 2017 Surface Mine Foreman CLARK JOHNSON SC 2848 12 2012 Surface Construction Supervisor DALE JOHNSON S 491 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DENNIS E. JOHNSON SC 2385 05 2005 Surface Construction Supervisor DENNIS J. JOHNSON S 2384 89 1989 Surface Mine Foreman DICKY L. JOHNSON S 4921 11 2011 Surface Mine Foreman DIRK C. JOHNSON S 3647 03 2003 Surface Mine Foreman DOUGLAS F. JOHNSON S 1075 79 1979 Surface Mine Foreman EDWARD JOHNSON SC 568 83 1983 Surface Construction Supervisor GARY W. JOHNSON S 1349 80 1980 Surface Mine Foreman GARY W. JOHNSON S 4247 06 2006 Surface Mine Foreman GEORGE E. JOHNSON S 3092 95 1995 Surface Mine Foreman GEORGE E. JOHNSON SC1433 95 1995 Surface Construction Supervisor GEORGE R. JOHNSON SC1415 95 1995 Surface Construction Supervisor GREG JOHNSON SC1729 97 1997 Surface Construction Supervisor H.F. P. JOHNSON S 8889 79 1979 Surface Mine Foreman HARRY T. JOHNSON SC314 83 1983 Surface Construction Supervisor H.F. P. JOHNSON SC182 82 1982 Surface Construction Supervisor JAMES C. JOHNSON S 3015 94 1994 Surface Mine Foreman JAMES L. JOHNSON SC 2613 08 2008 Surface Construction Supervisor JAMES M. JOHNSON S 4501 08 2008 Surface Mine Foreman JAMES W. JOHNSON S 5365 16 2016 Surface Mine Foreman JEFFREY C. JOHNSON S 3957 05 2005 Surface Mine Foreman JERRY BLAINE JOHNSON S 3806 04 2004 Surface Mine Foreman JOEL A. JOHNSON S 5588 19 2019 Surface Mine Foreman JOEY R. JOHNSON SC 2099 01 2001 Surface Construction Supervisor JOHN K. JOHNSON S 4104 06 2006 Surface Mine Foreman JOHN L. JOHNSON SC1657 96 1996 Surface Construction Supervisor JOHN W. JOHNSON S 2545 90 1990 Surface Mine Foreman JOHNNY A. JOHNSON S 1685 82 1982 Surface Mine Foreman JOSEPH JOHNSON SC988 92 1992 Surface Construction Supervisor JOSHUA A. JOHNSON S 5552 18 2018 Surface Mine Foreman KENNETH R. JOHNSON S 3837 04 2004 Surface Mine Foreman LARRY G. JOHNSON S 4339 07 2007 Surface Mine Foreman LEO W. JOHNSON S 1077 79 1979 Surface Mine Foreman MICHAEL A. JOHNSON S 3831 04 2004 Surface Mine Foreman MICHAEL E. JOHNSON SC1109 94 1994 Surface Construction Supervisor MICHAEL W. JOHNSON SC 564 83 1983 Surface Construction Supervisor NATHAN A. JOHNSON SC 2899 12 2012 Surface Construction Supervisor PHILLIP G. JOHNSON S 147 78 1978 Surface Mine Foreman RAYMOND G. JOHNSON SC1200 95 1995 Surface Construction Supervisor RICHARD A. JOHNSON S 5551 18 2018 Surface Mine Foreman RICHARD W. JOHNSON SC 1973 99 1999 Surface Construction Supervisor RICK JOHNSON S 2440 89 1989 Surface Mine Foreman ROGER L. JOHNSON SC1529 96 1996 Surface Construction Supervisor ROGER W. JOHNSON SC 2359 05 2005 Surface Construction Supervisor STEVE JOHNSON SC1747 97 1997 Surface Construction Supervisor TEDDY J. JOHNSON SC023 82 1982 Surface Construction Supervisor TYLER N. JOHNSON S 3971 05 2005 Surface Mine Foreman WILLIAM F. JOHNSON S 1926 84 1984 Surface Mine Foreman ORVID F. JOHNSON JR. SC 2032 00 2000 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE RICE JOHNSON JR. S 2457 89 1989 Surface Mine Foreman LEO W. JOHNSON, II S 2757 92 1992 Surface Mine Foreman JAMES C. JOHNSON, III S 5016 12 2012 Surface Mine Foreman PAUL R. JOHNSON, JR. S 2806 92 1992 Surface Mine Foreman ROBERT E. JOHNSON, JR. SC 2683 09 2009 Surface Construction Supervisor JACKIE L. JOHNSTON S 3966 05 2005 Surface Mine Foreman KENNETH D. JOHNSTON S 1517 81 1981 Surface Mine Foreman MICHAEL D. JOHNSTON S2216 87 1987 Surface Mine Foreman NICKY R. JOHNSTON S 2488 90 1990 Surface Mine Foreman NICKEY R. JOHNSTON II SC 3127 19 2019 Surface Construction Supervisor CRAIG E. JOLLEY SC 2461 06 2006 Surface Construction Supervisor ADDISON L. JONES S 1846 84 1984 Surface Mine Foreman AETHEL GEORGE JONES S 806 79 1979 Surface Mine Foreman ALBERT D. JONES SS 78 76 1976 Shaft & Slope Examiner Foreman BRONSON M. JONES S 4764 10 2010 Surface Mine Foreman CHARLES O. JONES S 2645 91 1991 Surface Mine Foreman DAVID M. JONES SC745 84 1984 Surface Construction Supervisor DAVID R. JONES S 4993 11 2011 Surface Mine Foreman DONALD R. JONES S 682 79 1979 Surface Mine Foreman ERNEST R. JONES S 1177 79 1979 Surface Mine Foreman FORREST S. JONES S 1815 83 1983 Surface Mine Foreman GARY W. JONES S 4761 10 2010 Surface Mine Foreman GUY S. JONES S 4050 06 2006 Surface Mine Foreman JAMES B. JONES SC 1880 98 1998 Surface Construction Supervisor JAMES P. JONES SC 2828 11 2011 Surface Construction Supervisor JASON A. JONES S 3575 02 2002 Surface Mine Foreman JASON A. JONES S 1002 A 2001 Asst. Surface Mine Foreman JOE J. JONES S 2511 90 1990 Surface Mine Foreman JOHN D. JONES SS307 97 1997 Shaft & Slope Examiner Foreman JOHNNY R. JONES S 2086 85 1985 Surface Mine Foreman KENNETH W. JONES S 1754 83 1983 Surface Mine Foreman MARK A. JONES S 4061 06 2006 Surface Mine Foreman MICHAEL E. JONES S 418 79 1979 Surface Mine Foreman MICHAEL E. JONES S 2256 88 1988 Surface Mine Foreman NORVIE A. JONES S 608 79 1979 Surface Mine Foreman PATRICK H. JONES S 1368 80 1980 Surface Mine Foreman RICHARD L. JONES S 929 79 1979 Surface Mine Foreman ROGER K. JONES S 1918 84 1984 Surface Mine Foreman RONALD R. JONES S 477 79 1979 Surface Mine Foreman THOMAS JONES S 4275 07 2007 Surface Mine Foreman THOMAS E. JONES SS 11 03 2003 Shaft and Slope Superintendent THOMAS E. JONES SS 343 03 2003 Shaft & Slope Examiner Foreman TONY A. JONES S 3014 94 1994 Surface Mine Foreman WILLIAM C. JONES S 1809 83 1983 Surface Mine Foreman WILLIAM E. JONES S 1584 82 1982 Surface Mine Foreman WILLIAM J. JONES S 1242 80 1980 Surface Mine Foreman WILLIAM W. JONES S 4914 11 2011 Surface Mine Foreman WILLIAM R. JONES III SC 2236 03 2003 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE RONNIE L. JONES JR. SC 2666 09 2009 Surface Construction Supervisor DONALD JONES, JR. SC1035 92 1992 Surface Construction Supervisor PAUL D. JONES, JR. SC853 86 1986 Surface Construction Supervisor ANDREW B. JORDAN S 2929 93 1993 Surface Mine Foreman BILL JORDAN S 1498 81 1981 Surface Mine Foreman DONALD E. JORDAN S 383 79 1979 Surface Mine Foreman JOHN P. JORDAN S 1614 82 1982 Surface Mine Foreman RICHARD P. JORDAN S 4751 10 2010 Surface Mine Foreman WINFRED L. JORDAN S 4448 08 2008 Surface Mine Foreman BUCK JOSEPH S 2623 91 1991 Surface Mine Foreman JACKIE L. JOSEPH S 2624 91 1991 Surface Mine Foreman JAMES L. JOYCE S 3028 94 1994 Surface Mine Foreman RONALD JOYCE SS 16 03 2003 Shaft and Slope Superintendent RONALD JOYCE SS 340 03 2003 Shaft & Slope Examiner Foreman DAVID W. JOZWIAK S 4377 07 2007 Surface Mine Foreman DAVID M. JUDE S 4391 07 2007 Surface Mine Foreman ERIC E. JUDE S 4847 10 2010 Surface Mine Foreman FLOYD R. JUDE S 3522 01 2001 Surface Mine Foreman JASON E. JUDE S 4704 09 2009 Surface Mine Foreman JESS C. JUDE S 4392 07 2007 Surface Mine Foreman ROY C. JUDE S 2762 92 1992 Surface Mine Foreman SAMUEL D. JUDE S 3488 01 2001 Surface Mine Foreman THAD JUDE S 4925 11 2011 Surface Mine Foreman TRACEY L. JUDE S 3887 05 2005 Surface Mine Foreman JACK JUDE, JR. S 2747 92 1992 Surface Mine Foreman BENJAMIN E. JUDY S 3950 05 2005 Surface Mine Foreman MELVIN E. JUDY S 242 78 1978 Surface Mine Foreman MICHAEL A. JULIAN SC 2698 09 2009 Surface Construction Supervisor HAROLD D. JUNKINS S 659 79 1979 Surface Mine Foreman ARMANDO JURADO SC 2543 07 2007 Surface Construction Supervisor ADAM L. JUSTICE S 5207 13 2013 Surface Mine Foreman CARL E. JUSTICE SC973 92 1992 Surface Construction Supervisor CHARLES R. JUSTICE SC 1865 98 1998 Surface Construction Supervisor CHRISTOPHER M. JUSTICE S 3183 96 1996 Surface Mine Foreman DAVID L. JUSTICE S 3292 98 1998 Surface Mine Foreman GERALD I. JUSTICE S 3710 03 2003 Surface Mine Foreman GORDON JUSTICE S 746 79 1979 Surface Mine Foreman GRANVILLE J. JUSTICE SC1394 95 1995 Surface Construction Supervisor JIMMY L. JUSTICE S 5094 12 2012 Surface Mine Foreman JOSEPH L. JUSTICE S 4441 08 2008 Surface Mine Foreman JOSEPH L. JUSTICE S 1097 A 2007 Asst. Surface Mine Foreman JOSHUA R. JUSTICE SC 2911 13 2013 Surface Construction Supervisor LONDIS K. JUSTICE SC1176 94 1994 Surface Construction Supervisor OKEY C. JUSTICE S 674 79 1979 Surface Mine Foreman ROGER L. JUSTICE S 3633 02 2002 Surface Mine Foreman ROGER S. JUSTICE S 3695 03 2003 Surface Mine Foreman STANLEY JUSTICE SC 1866 98 1998 Surface Construction Supervisor TED JUSTICE S 2007 85 1985 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILLIS A. JUSTICE S 3623 02 2002 Surface Mine Foreman DONALD M. JUSTICE, JR. S 4662 09 2009 Surface Mine Foreman JAMES R. JUSTICE, JR. SC1244 95 1995 Surface Construction Supervisor BOBBY J. JUSTUS S 4509 08 2008 Surface Mine Foreman BOBBY J. JUSTUS SC 2630 08 2008 Surface Construction Supervisor BOBBY L. JUSTUS S 5289 15 2015 Surface Mine Foreman DONALD L. JUSTUS S 2884 93 1993 Surface Mine Foreman DWAYNE R. JUSTUS S 5125 12 2012 Surface Mine Foreman KERRY S. JUSTUS S 4172 06 2006 Surface Mine Foreman MIKEL RAY JUSTUS S 2458 89 1989 Surface Mine Foreman RICHARD KAMMER S 1755 83 1983 Surface Mine Foreman LAWRENCE R. KAMMERER SC 2223 03 2003 Surface Construction Supervisor RONALD W. KANOUSE SC 2475 06 2006 Surface Construction Supervisor DONALD W. KARICKHOFF S 2739 91 1991 Surface Mine Foreman JERRY H. KARR SC1533 96 1996 Surface Construction Supervisor WILLIAM F. KASOVICH SS 3 02 2002 Shaft and Slope Superintendent JOSEPH A. KATLUBECK SC461 83 1983 Surface Construction Supervisor DAVID L. KAZEE S 5644 20 2020 Surface Mine Foreman ARNOLD R. KEATON SC673 83 1983 Surface Construction Supervisor RONALD E. KEATON S 2378 89 1989 Surface Mine Foreman TIMOTHY A. KECK S 5483 18 2018 Surface Mine Foreman ERIC B. KEEN S 4800 10 2010 Surface Mine Foreman JERRY W. KEEN SC1199 95 1995 Surface Construction Supervisor JOHNNIE B. KEEN SS 28 05 2005 Shaft and Slope Superintendent STEPHEN C. KEEN SC370 83 1983 Surface Construction Supervisor TERRY L. KEEN S 2394 89 1989 Surface Mine Foreman WILLIAM D. KEEN II S 5535 18 2018 Surface Mine Foreman DAVID A. KEENAN S 3869 05 2005 Surface Mine Foreman JOHN B. KEENE S 3643 02 2002 Surface Mine Foreman MICHAEL D. KEENE S 3372 00 2000 Surface Mine Foreman KENT D. KEENEY S 3786 04 2004 Surface Mine Foreman KENT D. KEENEY S 1003 A 2001 Asst. Surface Mine Foreman STEVEN KEENEY S 3817 04 2004 Surface Mine Foreman ANDY D. KEES S 3557 01 2001 Surface Mine Foreman RICHARD E. KEESEE SC762 84 1984 Surface Construction Supervisor LARRY J. KEETON S 2913 93 1993 Surface Mine Foreman DONALD A. KEFFER SC622 83 1983 Surface Construction Supervisor DONALD B. KEFFER SC086 82 1982 Surface Construction Supervisor GARY KEFFER S 1304 80 1980 Surface Mine Foreman JAMES H. KEFFER S 1136 79 1979 Surface Mine Foreman TIMOTHY A. KEFFER SC902 90 1990 Surface Construction Supervisor TODD D. KEFFER S 4550 08 2008 Surface Mine Foreman FLOYD RICHARD KEITH S 329 79 1979 Surface Mine Foreman MICHAEL KEITH SC 2632 08 2008 Surface Construction Supervisor THOMAS L. KEITH SC150 82 1982 Surface Construction Supervisor MARK R. KELLAM S 604 79 1979 Surface Mine Foreman JERRY L. KELLER S 4593 09 2009 Surface Mine Foreman DENNIS M. KELLEY S 2846 92 1992 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JAMES K. KELLEY S 3808 04 2004 Surface Mine Foreman JARED L. KELLEY S 4819 10 2010 Surface Mine Foreman RONALD D. KELLEY S 3896 05 2005 Surface Mine Foreman EARL KELLY SC1355 95 1995 Surface Construction Supervisor EARL J. KELLY S 1060 79 1979 Surface Mine Foreman JACKIE H. KELLY S 3205 97 1997 Surface Mine Foreman KENTON KELLY S 4667 09 2009 Surface Mine Foreman MICHAEL P. KELLY SC1219 95 1995 Surface Construction Supervisor RUSSELL JR. KELLY S 291 79 1979 Surface Mine Foreman THOMAS KELLY SC1696 97 1997 Surface Construction Supervisor TODD C. KELLY S 4980 11 2011 Surface Mine Foreman WILLIAM L. KELLY S 363 79 1979 Surface Mine Foreman WILLIAM R. KELLY SC193 82 1982 Surface Construction Supervisor WARREN E. KELM S 3110 95 1995 Surface Mine Foreman THOMAS R. KEMMER S 3142 96 1996 Surface Mine Foreman DONALD R. KEMP SC864 86 1986 Surface Construction Supervisor GEORGE T. KEMP S 4713 09 2009 Surface Mine Foreman HERSEL T. KEMP SC754 84 1984 Surface Construction Supervisor STANLEY W. KENDRICK S 1297 80 1980 Surface Mine Foreman CHAD E. KENNADA S 4513 08 2008 Surface Mine Foreman DARREN R. KENNEDA S 4529 08 2008 Surface Mine Foreman DONALD R. KENNEDA, JR. S 5122 12 2012 Surface Mine Foreman CLYDE J. KENNEDY S 2572 90 1990 Surface Mine Foreman DAVIS E. KENNEDY S 1588 82 1982 Surface Mine Foreman ERIC KENNEDY S 3410 00 2000 Surface Mine Foreman GAVIN C. KENNEDY S 2563 82 1982 Surface Mine Foreman GREGORY D. KENNEDY S 4892 11 2011 Surface Mine Foreman JIMMY L. KENNEDY S 4585 08 2008 Surface Mine Foreman MARK G. KENNEDY S 2342 88 1988 Surface Mine Foreman MARK L. KENNEDY S 2714 91 1991 Surface Mine Foreman RAYMOND D. KENNEDY S 1055 79 1979 Surface Mine Foreman ROGER L. KENNEDY SC 1904 98 1998 Surface Construction Supervisor THOMAS E. KENNEDY SC 2373 05 2005 Surface Construction Supervisor WENDELL D. KENNEDY S 765 79 1979 Surface Mine Foreman CLARK F. KENNEDY II SC1849 97 1997 Surface Construction Supervisor JOHN A. KENNEY SC170 82 1982 Surface Construction Supervisor GREGORY K. KENNY SC 2960 13 2013 Surface Construction Supervisor CLIFFORD KEPLINGER S 1919 84 1984 Surface Mine Foreman TROXELL V. KEPLINGER S 1410 81 1981 Surface Mine Foreman HOWARD R. KEPPLE JR. S 858 79 1979 Surface Mine Foreman ARTHUR G. KERNS S 1988 85 1985 Surface Mine Foreman JERRY G. KERNS SC1478 95 1995 Surface Construction Supervisor MARK A. KERNS S 5178 13 2013 Surface Mine Foreman L.P. KERR SC022 82 1982 Surface Construction Supervisor NOAH L. KERR SS 41 73 1973 Shaft & Slope Examiner Foreman LARRY T. KERSHNER S 1857 84 1984 Surface Mine Foreman DAVID L. KESLING S 1183 79 1979 Surface Mine Foreman ROBERT L. KESLING 2526 90 1990 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WENDELL R. KESNER SC 2782 11 2011 Surface Construction Supervisor MARK E. KESSINGER S 3773 04 2004 Surface Mine Foreman STACY B. KESSINGER S 4200 06 2006 Surface Mine Foreman BENJAMIN E. KESSLER SC488 83 1983 Surface Construction Supervisor CHARLES KESSLER SC 2688 09 2009 Surface Construction Supervisor CHARLES E. KESSLER SC623 83 1983 Surface Construction Supervisor ALLEN D. KESTNER SC 562 83 1983 Surface Construction Supervisor AARON G. KETCHEM SC 2140 01 2001 Surface Construction Supervisor ALAN R. KETCHEM S 2997 94 1994 Surface Mine Foreman JOHN B. KETCHEM SC1710 97 1997 Surface Construction Supervisor JOHN R. KETCHEM SC1713 97 1997 Surface Construction Supervisor DOUGLAS W. KEY S 2539 90 1990 Surface Mine Foreman PAUL KEY S 4347 07 2007 Surface Mine Foreman RANDALL P KEY S 3271 98 1998 Surface Mine Foreman RONALD D KEY S 3279 98 1998 Surface Mine Foreman CHRISTOPHER R. KEYGAN SC 2625 08 2008 Surface Construction Supervisor MINNIS B. KEYSER S 1288 80 1980 Surface Mine Foreman TIMOTHY D. KIBBEY S 3401 00 2000 Surface Mine Foreman ALAN KIBLINGER S 1125 A 2008 Asst. Surface Mine Foreman ALAN W. KIBLINGER S 4982 11 2011 Surface Mine Foreman GARY W. KIBLINGER S 3167 96 1996 Surface Mine Foreman BRIDGES L. KIDD SC1381 95 1995 Surface Construction Supervisor EZRA L. KIDD S 1227 79 1979 Surface Mine Foreman NATHAN D. KIDD S 5559 19 2019 Surface Mine Foreman OTIS H. KIDD S 407 79 1979 Surface Mine Foreman NOAH W. KIDD II S 4826 10 2010 Surface Mine Foreman KEVAN CHARLES KIFER S 1954 84 1984 Surface Mine Foreman THERMAN D. KILE S 635 79 1979 Surface Mine Foreman DOUGLAS KILLEN, II S 4269 07 2007 Surface Mine Foreman GARY EARL KILSTROM S 2192 87 1987 Surface Mine Foreman DWIGHT A. KIMBERLIN S 2870 24 1992 Asst. Surface Mine Foreman EDWARD L. KIMBLER S 5564 19 2019 Surface Mine Foreman JERRY E. KIMBLERN S 1488 81 1981 Surface Mine Foreman MICHAEL G. KIMLER S 735 79 1979 Surface Mine Foreman ERNEST A. KINCAID SC286 83 1983 Surface Construction Supervisor JAMES H. KINCAID S 2486 90 1990 Surface Mine Foreman JOHN K. KINCAID S 1600 82 1982 Surface Mine Foreman KENNETH KINCAID S 4653 09 2009 Surface Mine Foreman ROBERT C. KINCAID S 1466 81 1981 Surface Mine Foreman WILLIAM H. KINCAID S 493 79 1979 Surface Mine Foreman ADRAIN H. KINCAID, JR. SS 18680 1980 Shaft & Slope Examiner Foreman GREGORY D. KINCER S 5360 16 2016 Surface Mine Foreman RANDALL G. KINDER S 3566 01 2001 Surface Mine Foreman ROBERT D. KINDER S 2313 88 1988 Surface Mine Foreman CHARLES E. KINDER, JR. SC 974 92 1992 Surface Construction Supervisor RICHARD L. KINDRICK S 2250 87 1987 Surface Mine Foreman CARL JR. KINES S 466 79 1979 Surface Mine Foreman ROBERT L. KINES S 300 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ARTHUR L. KING SC1668 96 1996 Surface Construction Supervisor BURL KING S 4619 09 2009 Surface Mine Foreman FRANK R. KING SS 27991 1991 Shaft & Slope Examiner Foreman FRANKLIN D. KING S 2079 85 1985 Surface Mine Foreman GARY L. KING SS 338 02 2002 Shaft & Slope Examiner Foreman GLEN A. KING S 3001 94 1994 Surface Mine Foreman JERRY F. KING S 2263 88 1988 Surface Mine Foreman JOHNNIE D. KING S 2352 88 1988 Surface Mine Foreman MACK B. KING SC587 83 1983 Surface Construction Supervisor RUSSELL L. KING S 2988 94 1994 Surface Mine Foreman TIMOTHY A. KING SS 26791 1991 Shaft & Slope Examiner Foreman GEORGE M. KING II S 4561 08 2008 Surface Mine Foreman DANNY E. KINNES SS 40 05 2005 Shaft and Slope Superintendent JAMES D. KINNEY S 4514 08 2008 Surface Mine Foreman BOBBY J. KINSER S 3704 03 2003 Surface Mine Foreman JASON A. KINSER S 5246 14 2014 Surface Mine Foreman JEFF KINSER S 5177 13 2013 Surface Mine Foreman ROBERT W. KINSER SC 2033 00 2000 Surface Construction Supervisor WILLIAM S. KINSER SC 2792 11 2011 Surface Construction Supervisor BOBBY G. KINSER, JR S 5430 17 2017 Surface Mine Foreman DALE A. KINSLEY SC1805 97 1997 Surface Construction Supervisor EDWIN W. KIRBY S 1277 80 1980 Surface Mine Foreman CLIFFORD S. KIRBY, JR. SC 2626 08 2008 Surface Construction Supervisor GERALD J. KIRCH SC1742 97 1997 Surface Construction Supervisor ADAM T. KIRK S 4777 10 2010 Surface Mine Foreman AUSTIN B. KIRK S 3394 00 2000 Surface Mine Foreman BENTLEY C. KIRK S 3671 03 2003 Surface Mine Foreman BILLY R. KIRK S 3842 04 2004 Surface Mine Foreman BUD R. KIRK S 2969 94 1994 Surface Mine Foreman CARL D. KIRK S 3889 05 2005 Surface Mine Foreman DANNY M. KIRK S 3082 95 1995 Surface Mine Foreman ELMER KIRK S 5476 18 2018 Surface Mine Foreman JEFFREY S. KIRK S 4100 06 2006 Surface Mine Foreman JERRY L. KIRK S 3336 99 1999 Surface Mine Foreman JOSEPH L. KIRK S 3986 05 2005 Surface Mine Foreman JOSHUA D. KIRK S 5622 19 2019 Surface Mine Foreman LLOYD R. KIRK S 5032 12 2012 Surface Mine Foreman MERIDITH E. KIRK S 694 79 1979 Surface Mine Foreman ROGER L. KIRK S 5586 19 2019 Surface Mine Foreman RUSSELL T. KIRK S 5418 17 2017 Surface Mine Foreman JAY D. KIRK II S 3735 03 2003 Surface Mine Foreman RONALD E. KIRKENDALL SS310 97 1997 Shaft & Slope Examiner Foreman WILLIAM K. KIRKENDALL S 2274 88 1988 Surface Mine Foreman MACK KIRKLAND S 525 79 1979 Surface Mine Foreman SCOT KIRKPATRICK S 4023 05 2005 Surface Mine Foreman CRAIG A. KIRTLEY SS 362 05 2005 Shaft & Slope Examiner Foreman MIKE W. KIRTLEY SS 31 05 2005 Shaft and Slope Superintendent IVAL P. KISAMORE, JR. S 4948 11 2011 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE HOWARD F. KISE S 3967 05 2005 Surface Mine Foreman JIMMIE E. KISER S 972 79 1979 Surface Mine Foreman KENNITH L. KISER SC1784 97 1997 Surface Construction Supervisor LANNIE M. KISER SC185 82 1982 Surface Construction Supervisor WILLIAM B. KISER S 3007 94 1994 Surface Mine Foreman SAMUEL H. KISER III S 3039 94 1994 Surface Mine Foreman JAMES R. KISH S 4282 07 2007 Surface Mine Foreman LARRY D. KISNER S 337 79 1979 Surface Mine Foreman MATTHEW H. KISSINGER S 4879 11 2011 Surface Mine Foreman MASON L. KITCHEN, JR. S 5556 18 2018 Surface Mine Foreman JERRY D. KITTLE S 472 79 1979 Surface Mine Foreman RICHARD L. KITTLE S 473 79 1979 Surface Mine Foreman DONALD L. KITTS S 4507 08 2008 Surface Mine Foreman GARY D. KITZMILLER S 1947 84 1984 Surface Mine Foreman JOHN D. KITZMILLER S 2049 85 1985 Surface Mine Foreman KENNETH D. KITZMILLER S 1920 84 1984 Surface Mine Foreman ROBERT A. KITZMILLER SC372 83 1983 Surface Construction Supervisor RONALD LEE KITZMILLER S 542 79 1979 Surface Mine Foreman WILLIAM E. KITZMILLER SC394 83 1983 Surface Construction Supervisor JOHN EDWARD KIZER S 83 78 1978 Surface Mine Foreman ABNER KLAPROTH S 1071 79 1979 Surface Mine Foreman RAYMOND A. KLENDA SS 12578 1978 Shaft & Slope Examiner Foreman JOHN KLINDER SC 2777 11 2011 Surface Construction Supervisor SHAWN E. KLINE SS 10 03 2003 Shaft and Slope Superintendent SHAWN E. KLINE SS 344 03 2003 Shaft & Slope Examiner Foreman DONALD KLINGER SC 2940 13 2013 Surface Construction Supervisor ROGER L. KLINGER SC 2125 01 2001 Surface Construction Supervisor JAMES A. KLINK SS 11577 1977 Shaft & Slope Examiner Foreman JACK F. KLODT, JR. S 1285 80 1980 Surface Mine Foreman JOHN MICHAEL KNABENSHUE S 547 79 1979 Surface Mine Foreman JOHNIE JUNIOR KNABENSHUE S 545 79 1979 Surface Mine Foreman JAMES F. KNAPP SC582 83 1983 Surface Construction Supervisor HARVEY KNESTRICK SC 2596 08 2008 Surface Construction Supervisor CHARLES L. KNIGHT S 3323 99 1999 Surface Mine Foreman JEFFREY L. KNIGHT S 4198 06 2006 Surface Mine Foreman JEFFREY L. KNIGHT SC 3158 20 2020 Surface Construction Supervisor RANDALL W. KNIGHT S 183 78 1978 Surface Mine Foreman WILLIAM F. KNIGHT S 4896 11 2011 Surface Mine Foreman WILLIAM EUGENE KNIGHT S 297 79 1979 Surface Mine Foreman TIMOTHY E. KNIPP SC 1964 98 1998 Surface Construction Supervisor ROBERT M. KNISELY SS 11177 1977 Shaft & Slope Examiner Foreman MICHAEL E KNOPP,JR. S 4381 07 2007 Surface Mine Foreman EROL M KNOTT SC 1888 98 1998 Surface Construction Supervisor COLLIN D. KNOTTS SC 3097 18 2018 Surface Construction Supervisor DANIEL E. KNOTTS S 810 79 1979 Surface Mine Foreman ELWOOD D. KNOTTS SC 1935 98 1998 Surface Construction Supervisor ROBERT T. KNOTTS SC 2368 05 2005 Surface Construction Supervisor ROY C. KNOTTS S 335 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CHARLES A. KNOTTS, JR. SC1782 97 1997 Surface Construction Supervisor JOEY E. KNOWLES S 3093 95 1995 Surface Mine Foreman CHARLIE L. KNOWLES, SR. S 2018 85 1985 Surface Mine Foreman JEFFREY S. KNOWLTON SS 90 09 2009 Shaft and Slope Superintendent HENRY B. KNOX S 2101 86 1986 Surface Mine Foreman CHESLEY KOERNER SC885 87 0 Surface Construction Supervisor DENNIS J. KOHLER S 1251 80 1980 Surface Mine Foreman DENNIS J. KOHLER SC333 83 1983 Surface Construction Supervisor PAUL L. KOLB S 1921 84 1984 Surface Mine Foreman GREGORY A. KOMOROWSKI S 4499 08 2008 Surface Mine Foreman GREGORY A. KOMOROWSKI S 1094 A 2007 Asst. Surface Mine Foreman ROBERT KONDRATOWICZ SC112 82 1982 Surface Construction Supervisor SHAWN E. KONYA SC 2593 08 2008 Surface Construction Supervisor PAUL D. KOON S 1571 31 1982 Asst. Surface Mine Foreman GERALD W. KOONTZ S 315396 1996 Surface Mine Foreman JACK R. KOONTZ SC 2872 12 2012 Surface Construction Supervisor ROBERT W. KOPSIC SC328 83 1983 Surface Construction Supervisor STEVEN L. KOPSOLIAS SC 2053 00 2000 Surface Construction Supervisor LOUIS W. KORODY S 1139 A 2010 Asst. Surface Mine Foreman FRANK E. KOVACH S 1928 84 1984 Surface Mine Foreman LOUIS J. KOVACH S 1665 82 1982 Surface Mine Foreman BRIAN N. KOWALCHUK SS 81 07 2007 Shaft and Slope Superintendent JAMES F. KOWCHECK SC867 86 1986 Surface Construction Supervisor REGIS F. KOWCHECK, SR. SC871 86 1986 Surface Construction Supervisor REGIS F. KOWCHECK,JR SC866 86 1986 Surface Construction Supervisor PAUL KOWELL, JR. SC458 83 1983 Surface Construction Supervisor VINCENT P. KOZLOWSKI, JR. SS 382 09 2009 Shaft & Slope Examiner Foreman ANTHONY J. KOZOLA SC1149 94 1994 Surface Construction Supervisor JOSEPH W. KOZY, JR. SC 2684 09 2009 Surface Construction Supervisor RANDALL L. KRAJNAK SC 2936 13 2013 Surface Construction Supervisor DOUGLASS S. KRAKAU S 1853 84 1984 Surface Mine Foreman LIN KRAMER S 2489 90 1990 Surface Mine Foreman MICHAEL B. KRAVETZ SC 2601 08 2008 Surface Construction Supervisor JOSEPH KRECLICH SC1069 93 1993 Surface Construction Supervisor DWIGHT D. KREISER S 1827 13 1984 Asst. Surface Mine Foreman DWIGHT D. KREISER SC746 84 1984 Surface Construction Supervisor FRANKLIN G. KRUSE SS 17179 1979 Shaft & Slope Examiner Foreman MICHAEL J. KRUSE SS 17079 1979 Shaft & Slope Examiner Foreman GEORGE E. KRYSTON S 2298 88 1988 Surface Mine Foreman GENE KUHN SC717 84 1984 Surface Construction Supervisor KENNETH L. KUHN SC1002 92 1992 Surface Construction Supervisor RALPH W. KUHN SS 7576 1976 Shaft & Slope Examiner Foreman RANDY A. KUHN SC 2328 05 2005 Surface Construction Supervisor JEFFREY M. KUKURA S 2675 91 1991 Surface Mine Foreman CHARLES D. KUNEFF SC 2723 10 2010 Surface Construction Supervisor DAVID L. KUNEFF SC 2722 10 2010 Surface Construction Supervisor JOHN F. KUNKLE, SR. SC1562 96 1996 Surface Construction Supervisor SEAN D. KUNTZ SC 3036 16 2016 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CHARLES B. KURZYNA S 2587 90 1990 Surface Mine Foreman RICK A. KYER SC 2371 05 2005 Surface Construction Supervisor BRIAN E. KYFFIN SS 351 03 2003 Shaft & Slope Examiner Foreman JOHN B. KYFFIN SS 6775 1975 Shaft & Slope Examiner Foreman EDWARD D. KYLE S 3113 95 1995 Surface Mine Foreman EDWARD D. KYLE SC 2008 99 1999 Surface Construction Supervisor GEORGE F. KYLE S 1461 88 1981 Surface Mine Foreman JACKIE B. KYLE S 1369 80 1980 Surface Mine Foreman KARL NORMAN KYLE S 1901 84 1984 Surface Mine Foreman THURMAN LACKEY S 3625 02 2002 Surface Mine Foreman THOMAS LACROSS SC087 82 1982 Surface Construction Supervisor DON D. LACY SC812 86 1986 Surface Construction Supervisor JOSHUA D. LACY S 5572 19 2019 Surface Mine Foreman RALPH J. LACY SC1816 97 1997 Surface Construction Supervisor ROBERT M. LACY SC237 82 1982 Surface Construction Supervisor KEITH E. LAFFERRE SC 2265 04 2004 Surface Construction Supervisor BRADLEY LAFFERTY S 5631 20 2020 Surface Mine Foreman HAL V. LAFFERTY SC1364 95 1995 Surface Construction Supervisor WALLACE R. LAHTI S 4565 08 2008 Surface Mine Foreman CECIL L. LAISURE S 701 79 1979 Surface Mine Foreman KARL W. LAITINEN SC250 83 1983 Surface Construction Supervisor CHARLES W. LAMB SC269 82 1982 Surface Construction Supervisor BILL LAMBERT SC1204 95 1995 Surface Construction Supervisor CARL D. LAMBERT S 5335 15 2015 Surface Mine Foreman CHARLES D. LAMBERT SC1823 97 1997 Surface Construction Supervisor CHARLES W. LAMBERT S 833 82 1982 Surface Mine Foreman CHARLIE R. LAMBERT SC 2243 04 2004 Surface Construction Supervisor DAVID W. LAMBERT SC786 85 1985 Surface Construction Supervisor EDDIE R. LAMBERT SC1824 97 1997 Surface Construction Supervisor GARY J. LAMBERT SC1825 97 1997 Surface Construction Supervisor JACK M. LAMBERT 64479 79 1979 Surface Mine Foreman JAMES W. LAMBERT S 843 79 1979 Surface Mine Foreman JOHN M. LAMBERT S 4321 07 2007 Surface Mine Foreman KEVIN D. LAMBERT S 3666 03 2003 Surface Mine Foreman ORAL J. LAMBERT SC 2629 08 2008 Surface Construction Supervisor RICHARD A. LAMBERT S 1028 79 1979 Surface Mine Foreman SAMUEL S. LAMBERT S 2357 88 1988 Surface Mine Foreman SAMUEL S. LAMBERT S 2357 88 1988 Surface Mine Foreman TEDDY F. LAMBERT S 1813 83 1983 Surface Mine Foreman RAYMOND N. LAMBRUNO S 723 79 1979 Surface Mine Foreman PHIL A. LAMKIN SC 2237 03 2003 Surface Construction Supervisor RUSSELL LAMONT S 4407 08 2008 Surface Mine Foreman MATT M. LANCASTER SC480 83 1983 Surface Construction Supervisor JOHN L. LANCIANESE S 616 79 1979 Surface Mine Foreman RICHARD LAND SC 2170 02 2002 Surface Construction Supervisor WAYNE J. LANDSTROM SC1450 95 1995 Surface Construction Supervisor ALLEN L. LANE S 5513 18 2018 Surface Mine Foreman BILL LANE SS 19280 1980 Shaft & Slope Examiner Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DONALD E. LANE SC241 82 1982 Surface Construction Supervisor JOHN W. LANE SC 2665 09 2009 Surface Construction Supervisor JOHNNY LANE S 3645 02 2002 Surface Mine Foreman KEVIN B. LANE SC1320 95 1995 Surface Construction Supervisor LARRY R. LANE SS 17780 1980 Shaft & Slope Examiner Foreman MARSHALL L. LANE S 1525 81 1981 Surface Mine Foreman STEVEN L. LANE S 4160 06 2006 Surface Mine Foreman VIRGIL LANE SC278 83 1983 Surface Construction Supervisor WILLIAM A. LANE S 573 79 1979 Surface Mine Foreman BILLY R. LANE JR. SC 1917 98 1998 Surface Construction Supervisor CLYDE LANG S 1104 79 1979 Surface Mine Foreman PAIL A. LANG S 2711 91 1991 Surface Mine Foreman JAMES E. LANGFORD S 641 79 1979 Surface Mine Foreman DAVID N. LANGLEY S 4763 10 2010 Surface Mine Foreman JAMES H. LANHAM S 189 78 1978 Surface Mine Foreman OKEY M. LANHAM JR. S 1350 80 1980 Surface Mine Foreman RONNIE L. LANIER SC 2473 06 2006 Surface Construction Supervisor LANNY W. LANSDEN S 2987 94 1994 Surface Mine Foreman CHESTER A. LAPP SC749 84 1984 Surface Construction Supervisor RICHARD B. LAPPING, JR. SS 4 02 2002 Shaft and Slope Superintendent JERRY K. LARCH SC1123 94 1994 Surface Construction Supervisor CLARENCE E. LAREW S 1690 82 1982 Surface Mine Foreman DENNIS K. LAREW S 1632 82 1982 Surface Mine Foreman JAMES E. LAREW S 1691 82 1982 Surface Mine Foreman JAMES R. LAREW S 3345 99 1999 Surface Mine Foreman GARY A. LARGER S 1801 21 1983 Asst. Surface Mine Foreman ROY B. LARIMER SC468 83 1983 Surface Construction Supervisor CONRAD R LARRABEE, JR SM 25 78 1978 Surface Mine Foreman RAYMOND T. LARSON S 600 79 1979 Surface Mine Foreman JOHN C. LASTER SC 2631 08 2008 Surface Construction Supervisor JACK D. LASURE SC1800 97 1997 Surface Construction Supervisor JAMES L. LATHAM SS 16979 1979 Shaft & Slope Examiner Foreman JAMES L. LATHAM SC648 83 1983 Surface Construction Supervisor PHILLIP G. LATORRE S 2907 93 1993 Surface Mine Foreman RICHARD L. LATTEA S 2926 93 1993 Surface Mine Foreman MICHAEL J. LAUDERBAUGH SC 2024 99 1999 Surface Construction Supervisor AARON M. LAUGHLIN SC 2600 08 2008 Surface Construction Supervisor JOSEPH A. LAURITA S 5109 12 2012 Surface Mine Foreman EUGENE G. LAVENDER S 371 79 1979 Surface Mine Foreman ERSIL L. LAVERTY SC671 83 1983 Surface Construction Supervisor ROGER L. LAW SC1466 95 1995 Surface Construction Supervisor TED B. LAW S 1144 79 1979 Surface Mine Foreman THOMAS E. LAW S 3033 94 1994 Surface Mine Foreman JOHN W. LAWRENCE S 1733 83 1983 Surface Mine Foreman ROBERT LAWRENCE S 574 79 1979 Surface Mine Foreman ROGER A. LAWRENCE S 3032 94 1994 Surface Mine Foreman RONNIE D. LAWRENCE S 4779 10 2010 Surface Mine Foreman KENNETH R. LAWS S 4918 11 2011 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ALTON P. LAWSON S 2952 93 1993 Surface Mine Foreman bradley j. lawson S2685 91 1991 Surface Mine Foreman BRADLEY J. LAWSON SC 2871 12 2012 Surface Construction Supervisor CHARLES A. LAWSON SS 105 12 2012 Shaft and Slope Superintendent CHRISTOPHER J. LAWSON SC 2641 08 2008 Surface Construction Supervisor DELBERT R. LAWSON S 952 79 1979 Surface Mine Foreman LEROY E. LAWSON S 3114 95 1995 Surface Mine Foreman VIRGIL T. LAWSON S 64 78 1978 Surface Mine Foreman JOHN R. LAYER SC730 84 1984 Surface Construction Supervisor JOHN R. LAYFIELD SC1134 94 1994 Surface Construction Supervisor MICHAEL E. LAYMAN SC 3085 18 2018 Surface Construction Supervisor STEPHEN G. LAYMAN SS 12 03 2003 Shaft and Slope Superintendent STEPHEN G. LAYMAN SS 345 03 2003 Shaft & Slope Examiner Foreman HARLEY E. LAYMON, SR. S 3077 95 1995 Surface Mine Foreman BRANT K. LAYNE S 4133 06 2006 Surface Mine Foreman KENNETH L. LAYNE S 781 79 1979 Surface Mine Foreman WILLIAM S. LAZAR SC1432 95 1995 Surface Construction Supervisor STEVEN T. LAZENBY SC 2104 01 2001 Surface Construction Supervisor EARL H. LEACH S 1849 84 1984 Surface Mine Foreman HERBERT N. LEACH S 729 79 1979 Surface Mine Foreman REGIS LEACH, JR. SC061 82 1982 Surface Construction Supervisor JOHNNY G. LEARY JR SC 2918 13 2013 Surface Construction Supervisor ERNEST R. LEDBETTER SS 77 76 1976 Shaft & Slope Examiner Foreman CHARLES E. LEDSOME, JR. SC1722 97 1997 Surface Construction Supervisor CHARLES B. LEE SC1337 95 1995 Surface Construction Supervisor CHRIS LEE S 4955 11 2011 Surface Mine Foreman DANNY R. LEE S 4752 10 2010 Surface Mine Foreman DENZIL O. LEE S 387 79 1979 Surface Mine Foreman FRANKLIN LEE SC1730 97 1997 Surface Construction Supervisor HARRY S. LEE S 1480 81 1981 Surface Mine Foreman JAMES F. LEE SC 2277 04 2004 Surface Construction Supervisor LARRY G. LEE S 2306 88 1988 Surface Mine Foreman RONALD J. LEE S 5273 14 2014 Surface Mine Foreman RICHARD R. LEE JR. SC 2880 12 2012 Surface Construction Supervisor STEVEN D. LEEDY S 3525 01 2001 Surface Mine Foreman DONALD C. LEFTWICH SC 2030 99 1999 Surface Construction Supervisor BILLIE J. LEGG S 1223 79 1979 Surface Mine Foreman BOBBY J. LEGG S 571 79 1979 Surface Mine Foreman CLYDE T. LEGG S 1836 84 1984 Surface Mine Foreman EARL JACKSON LEGG S 11 78 1978 Surface Mine Foreman FREDDIE LEE LEGG S 1233 80 1980 Surface Mine Foreman LARRY T. LEGG S 970 79 1979 Surface Mine Foreman MICHAEL A. LEGG S 3089 95 1995 Surface Mine Foreman TIMOTHY B. LEGG S 4782 10 2010 Surface Mine Foreman WILLIAM E. LEGG S 45 78 1978 Surface Mine Foreman ERNEST A. LEGGETT S 1814 83 1983 Surface Mine Foreman WILLIAM GERALD LEISURE S 2189 87 1987 Surface Mine Foreman ALLAN N. LEITCH S 5482 18 2018 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DONALD E. LEMARR S 3098 95 1995 Surface Mine Foreman DONNIE T. LEMARR S 5188 13 2013 Surface Mine Foreman LONNIE F. LEMASTER S 5515 18 2018 Surface Mine Foreman BOBBY L. LEMLEY SS 19380 1980 Shaft & Slope Examiner Foreman CLARENCE R. LEMLEY SC905 90 1990 Surface Construction Supervisor PERRY H. LEMLEY SC 2925 13 2013 Surface Construction Supervisor ORESTE LEOMBRUNO S 666 79 1979 Surface Mine Foreman JEFFERY A. LEONARD SC 2742 10 2010 Surface Construction Supervisor DEWEY E. LEONARD, JR S 5484 18 2018 Surface Mine Foreman DANIEL M. LESHER SC 2924 13 2013 Surface Construction Supervisor BRANDON L. LESLIE S 4946 11 2011 Surface Mine Foreman CHARLES B. LESTER SC1652 96 1996 Surface Construction Supervisor CLIFTON W. LESTER S 2634 91 1991 Surface Mine Foreman CLINTON LESTER S2115 86 1986 Asst. Surface Mine Foreman CORY A. LESTER S 5228 14 2014 Surface Mine Foreman DANNY R. LESTER S 3979 05 2005 Surface Mine Foreman DAVID A. LESTER S 2288 88 1988 Surface Mine Foreman DAVID S. LESTER S 1131 A 2009 Asst. Surface Mine Foreman DERICK S. LESTER S 5255 14 2014 Surface Mine Foreman EULA J. LESTER S 4546 08 2008 Surface Mine Foreman JACKIE L. LESTER S 1989 85 1985 Surface Mine Foreman JAMES E. LESTER S 1708 1982 Surface Mine Foreman JAMES P. LESTER SC 2039 00 2000 Surface Construction Supervisor KENNY D. LESTER SS 23 05 2005 Shaft and Slope Superintendent LARRY C. LESTER S 739 79 1979 Surface Mine Foreman LAWRENCE LESTER S 2344 88 1988 Surface Mine Foreman MICHAEL S. LESTER S 4569 08 2008 Surface Mine Foreman RANDALL N. LESTER S 4232 06 2006 Surface Mine Foreman ROGER A. LESTER S 4613 09 2009 Surface Mine Foreman STEPHEN R. LESTER S 5152 13 2013 Surface Mine Foreman TOMMY N. LESTER S 1675 82 1982 Surface Mine Foreman SHELAH LESTER, JR. SC913 90 1990 Surface Construction Supervisor RONALD LETAVEC SC452 83 1983 Surface Construction Supervisor DOUGLAS C. LETTEER S 3048 95 1995 Surface Mine Foreman JOHANN C. LEUNG SC 2386 05 2005 Surface Construction Supervisor CHARLEY LEWIS SC1826 97 1997 Surface Construction Supervisor DENNIS K. LEWIS SC 2431 06 2006 Surface Construction Supervisor DWIGHT M. LEWIS SC402 83 1983 Surface Construction Supervisor HAROLD A. LEWIS S 1292 80 1980 Surface Mine Foreman ISAAC N. LEWIS SC1635 96 1996 Surface Construction Supervisor JAMES D. LEWIS S 2286 88 1988 Surface Mine Foreman JAMES G. LEWIS S 4597 09 2009 Surface Mine Foreman JERRALD ROLAND LEWIS S 2389 89 1989 Surface Mine Foreman JOHN W. LEWIS S 4028 06 2006 Surface Mine Foreman JOHN W. LEWIS SC952 91 1991 Surface Construction Supervisor JOSEPH L. LEWIS S 3125 95 1995 Surface Mine Foreman JOSEPH L. LEWIS S 3125 95 1995 Shaft & Slope Examiner Foreman LAYMOND W. LEWIS SS 24086 1986 Shaft & Slope Examiner Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MARK E. LEWIS SC1669 96 1996 Surface Construction Supervisor MICHAEL E. LEWIS S 262591 1991 Surface Mine Foreman PRESTON C. LEWIS S 2904 93 1993 Surface Mine Foreman ROBERT S. LEWIS SC 2319 05 2005 Surface Construction Supervisor JOHN L. LEWIS JR. S 5434 17 2017 Surface Mine Foreman ISAAC LEWIS, II S 2477 90 1990 Surface Mine Foreman JOHN L. LEWIS, III S 5379 16 2016 Surface Mine Foreman JOHN L. LEWIS, III S 1137 A 2010 Asst. Surface Mine Foreman EDWARD K. LICHTENFELS SC1003 92 1992 Surface Construction Supervisor JOHN R. LIDDLE S 4228 06 2006 Surface Mine Foreman JOHN R. LIDDLE S 1060 A 2005 Asst. Surface Mine Foreman EXIL LIGHT S 186 78 1978 Surface Mine Foreman LARRY D. LIGHT SC1778 97 1997 Surface Construction Supervisor MICHAEL E. LIGHT SC1083 93 1993 Surface Construction Supervisor RANDALL D. LIGHT S 4075 06 2006 Surface Mine Foreman RANDALL S. LIGHT S 5051 12 2012 Surface Mine Foreman ROBERT D. LIGHT S 4067 06 2006 Surface Mine Foreman RICHARD E. LIGHTNER S 2922 93 1993 Surface Mine Foreman DANIEL L. LILLY S 2016 85 1985 Surface Mine Foreman DAYTON LILLY S 41 78 1978 Surface Mine Foreman EMERY E. LILLY SC494 83 1983 Surface Construction Supervisor ERNEST D. LILLY S 2144 86 1986 Surface Mine Foreman FORREST E. LILLY S 2464 89 1989 Surface Mine Foreman GARY A. LILLY SC1467 95 1995 Surface Construction Supervisor IRA V. LILLY S 1021 79 1979 Surface Mine Foreman JERRY D. LILLY S 2669 91 1991 Surface Mine Foreman JOSHUA B. LILLY S 5455 17 2017 Surface Mine Foreman MICHAEL S. LILLY SC136 82 1982 Surface Construction Supervisor ORIS J. LILLY S 1845 84 1984 Surface Mine Foreman PAUL A. LILLY S 1578 82 1982 Surface Mine Foreman ROGER E. LILLY S 1804 83 1983 Surface Mine Foreman ROGER E. LILLY S 4433 08 2008 Surface Mine Foreman SCOTT K. LILLY S 5086 12 2012 Surface Mine Foreman SHANE R. LILLY S 5099 12 2012 Surface Mine Foreman STEVEN R. LILLY S 214386 1986 Surface Mine Foreman THOMAS E. LILLY SC718 84 1984 Surface Construction Supervisor RICHARD W. LINDENMUTH S 1058 79 1979 Surface Mine Foreman JAMES L. LINDERMAN SC 2598 08 2008 Surface Construction Supervisor JUSTIN LINDSAY SS 109 12 2012 Shaft and Slope Superintendent JOHN L. LINDSEY SS 98 76 1976 Shaft & Slope Examiner Foreman RICHARD WAYNE LINDSEY S 414 79 1979 Surface Mine Foreman MIKE L. LINGER SC1185 94 1994 Surface Construction Supervisor THOMAS K. LINK SC 1868 98 1998 Surface Construction Supervisor GERALD G. LINKER SC897 89 0 Surface Construction Supervisor DARRELL G. LINKSWEILER, SR. SC 2446 06 2006 Surface Construction Supervisor DARRELL G. LINKSWELER SC 2662 09 2009 Surface Construction Supervisor MICHAEL J. LINKSWILER SC 2468 06 2006 Surface Construction Supervisor PAUL K. LINKSWILER SC 2069 00 2000 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE RANDY L. LINN SC 2219 03 2003 Surface Construction Supervisor WILLIAM E. LINTZ S 3881 05 2005 Surface Mine Foreman HARRY T. LINVILLE S 3051 95 1995 Surface Mine Foreman JAMES LINVILLE S 19 78 1978 Surface Mine Foreman JOHNNY LINVILLE S 2084 85 1985 Surface Mine Foreman LESLIE M. LINVILLE SC088 82 1982 Surface Construction Supervisor OTIS C. LINVILLE S2697 91 1991 Surface Mine Foreman PAUL E. LINVILLE SS 10777 1977 Shaft & Slope Examiner Foreman RICHARD J. LINVILLE S 3291 98 1998 Surface Mine Foreman OTIS C. LINVILLE, II S 3687 03 2003 Surface Mine Foreman CARL B. LINVILLE, JR. S 5493 18 2018 Surface Mine Foreman GENE H. LIPE SC633 83 1983 Surface Construction Supervisor VIRGIL DANIEL LIPPS S 2531 90 1990 Surface Mine Foreman MELVIN H. LIPSCOMB S 669 79 1979 Surface Mine Foreman JASON J. LISTER S 4789 10 2010 Surface Mine Foreman CHARLES W. LISTON SC992 92 1992 Surface Construction Supervisor WALLACE L. LISTON S 1964 84 1984 Surface Mine Foreman WILLIAM S. LITTLE S 2376 89 1989 Surface Mine Foreman THOMAS D. LITTLE JR S 4886 11 2011 Surface Mine Foreman THOMAS D. LITTLE JR S 1136 A 2009 Asst. Surface Mine Foreman LAWRENCE G. LITTLER SC 2768 11 2011 Surface Construction Supervisor JOHN F. LITTON S 3535 01 2001 Surface Mine Foreman JAMES S. LITZINGER SC201 82 1982 Surface Construction Supervisor CHARLES C. LIVELY S 1263 80 1980 Surface Mine Foreman RICHARD M. LIVELY S 79 78 1978 Surface Mine Foreman ROGER G. LIVELY S 2827 92 1941 Surface Mine Foreman WAYNE L. LIVELY S 1547 81 1979 Surface Mine Foreman CLIFFORD H. LIVELY, JR. SC413 83 1983 Surface Construction Supervisor DAVID L. LIVENGOOD SC293 83 1983 Surface Construction Supervisor SAMUEL D. LIVENGOOD JR. S 1116 79 1979 Surface Mine Foreman THOMAS E. LOBB S 258390 1990 Surface Mine Foreman WILBUR M. LOCKE S 580 79 1979 Surface Mine Foreman JOHN W. LOCKHART S 1057 79 1979 Surface Mine Foreman WALLACE L. LOCKHART SC1038 92 1992 Surface Construction Supervisor JIMMIE C. LOCKRIDGE S 4389 07 2007 Surface Mine Foreman KEVIN C. LOCKSTON S 5592 19 2019 Surface Mine Foreman LAWRENCE G. LOFHOLM SC127 82 1982 Surface Construction Supervisor DOUGLAS F. LOFLIN S 2154 87 1987 Surface Mine Foreman JARET D. LOGAN S 2726 91 1991 Surface Mine Foreman HOWARD L. LOGGINS SC 2128 01 2001 Surface Construction Supervisor DAVID A. LOHR S 1709 82 1988 Surface Mine Foreman MARION T. LOLLAR S 1627 82 1982 Surface Mine Foreman CHARLES LONG SC021 82 1982 Surface Construction Supervisor CHARLES E. LONG SC1420 95 1995 Surface Construction Supervisor CHRISTOPHER G. LONG SS 68 06 2006 Shaft and Slope Superintendent CHRISTOPHER G. LONG SS 28893 1993 Shaft & Slope Examiner Foreman CHRISTOPHER G. LONG SC1662 96 0 Surface Construction Supervisor CLAUDE A. LONG S 1167 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CRAIG A. LONG S 5169 13 2013 Surface Mine Foreman DAVID F. LONG SC265 82 1982 Surface Construction Supervisor DAVID L. LONG S 2381 89 1989 Surface Mine Foreman GREGORY A. LONG S 5023 12 2012 Surface Mine Foreman JAMES E. LONG S 1119 80 1980 Surface Mine Foreman JERRY N. LONG SC661 83 1983 Surface Construction Supervisor JOSEPH H. LONG SC1421 95 1995 Surface Construction Supervisor MAURICE H. LONG SC020 82 1982 Surface Construction Supervisor ROGER N. LONG S 886 79 1979 Surface Mine Foreman TERRY L. LONG SC 2444 06 2006 Surface Construction Supervisor WILLARD T. LONG SC763 84 1984 Surface Construction Supervisor THOMAS P. LONG, II S 2546 90 1990 Surface Mine Foreman PHILIP L. LONGENECKER SC 1949 98 1998 Surface Construction Supervisor JACK W. LONGFELLOW SC 2179 02 2002 Surface Construction Supervisor LARRY D. LONGWORTH S 4715 09 2009 Surface Mine Foreman ROBERT J. LONKER S 4266 07 2007 Surface Mine Foreman BOBBY L. LOONEY S 4458 08 2008 Surface Mine Foreman ROY D. LOONEY S 2881 93 1993 Surface Mine Foreman TIMOTHY W. LOONEY S 3941 05 2005 Surface Mine Foreman MARK A. LOPEZ S 5158 13 2013 Surface Mine Foreman RONALD G. LORRISON SC751 84 1984 Surface Construction Supervisor CHARLES N. LOUGHERY SC 2983 14 2014 Surface Construction Supervisor DANIEL R. LOUGHMAN SS 133 20 2020 Shaft and Slope Superintendent MATTHEW G. LOUKAS SC 2920 13 2013 Surface Construction Supervisor RICHARD P. LOVE JR S 5216 14 2014 Surface Mine Foreman DARRELL L. LOVEJOY SC1084 93 1993 Surface Construction Supervisor DAVID L. LOVEJOY SC204 82 1982 Surface Construction Supervisor JASON C. LOVEJOY SS 89 09 2009 Shaft and Slope Superintendent LONNIE WILLIS LOVEJOY S 2871 93 1993 Surface Mine Foreman RAYMOND J. LOVEJOY S 3802 04 2004 Surface Mine Foreman CRAIG E. LOVETT S 1082 79 1979 Surface Mine Foreman HOWARD L. LOVING II SC 2736 10 2010 Surface Construction Supervisor BRIAN P. LOWE S 5470 18 2018 Surface Mine Foreman DAVID C. LOWE S 4548 08 2008 Surface Mine Foreman JOHN E. LOWE S 1823 84 1984 Surface Mine Foreman LARRY L. LOWE SC 2942 13 2013 Surface Construction Supervisor MICHAEL S. LOWE S 1464 81 1981 Surface Mine Foreman RONNIE D. LOWE SC 1955 98 1998 Surface Construction Supervisor SHAWN E. LOWE S 4120 06 2006 Surface Mine Foreman TERRY N. LOWE SS 17379 1979 Shaft & Slope Examiner Foreman THOMAS A. LOWER S 465 79 1979 Surface Mine Foreman BRIAN H. LOWERY S 2426 89 1989 Surface Mine Foreman LEONARD LOWERY S 2570 90 1990 Surface Mine Foreman KENNETH B. LOWMILLER S 1682 82 1982 Surface Mine Foreman DUANE E. LOWRY S 2798 92 1992 Surface Mine Foreman ZACHARY A. LOY SC 2690 09 2009 Surface Construction Supervisor BUDDY L. LOYD S3219 97 1997 Surface Mine Foreman ANDREW O. LUBURGH SC1056 92 1992 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CLATA O. LUBURGH SC1051 92 1992 Surface Construction Supervisor CURT M. LUBURGH SC1055 92 1992 Surface Construction Supervisor MARK A. LUBURGH SC1053 92 1992 Surface Construction Supervisor MATTHEW W. LUBURGH SC1054 92 1992 Surface Construction Supervisor WILLIAM H. LUBURGH SC1052 92 1992 Surface Construction Supervisor CHARLES F. LUCAS SC1306 95 1995 Surface Construction Supervisor DAVID C. LUCAS S 394 79 1979 Surface Mine Foreman DAVID LEE LUCAS S 2473 90 1990 Surface Mine Foreman FREDDIE D. LUCAS S 4376 07 2007 Surface Mine Foreman JAMES E. LUCAS S 512 79 1979 Surface Mine Foreman JAMES L. LUCAS S 4188 06 2006 Surface Mine Foreman JOHN G. LUCAS S 936 79 1979 Surface Mine Foreman LEONARD C. LUCAS S 4342 07 2007 Surface Mine Foreman MARION L. LUCAS S 883 79 1979 Surface Mine Foreman MARION L. LUCAS SC1106 94 1994 Surface Construction Supervisor RICHARD O. LUCAS S 884 79 1979 Surface Mine Foreman ROBERT T. LUCAS SC 2394 05 2005 Surface Construction Supervisor ROCKY D. LUCAS S 4909 11 2011 Surface Mine Foreman TIMOTHY L. LUCAS S 3281 98 1998 Surface Mine Foreman WYATT L. LUCAS SC1733 97 1997 Surface Construction Supervisor LUCIAN LUCAS JR. S 3667 03 2003 Surface Mine Foreman WILLIAM B. LUCAS, JR. S 4403 08 2008 Surface Mine Foreman WILLIAM B. LUCAS, JR. S 1092 A 2007 Asst. Surface Mine Foreman DALE LUCHA S 2040 85 1985 Surface Mine Foreman RAY LUCKY SC 547 83 1983 Surface Construction Supervisor GARY T. LUDWIG S 3812 04 2004 Surface Mine Foreman GARY T. LUDWIG SC 2275 04 2004 Surface Construction Supervisor THOMAS S. LUEKER SC 2015 99 1999 Surface Construction Supervisor RONALD J. LUGO SC421 83 1983 Surface Construction Supervisor ALBERT R. LUJANO SC 3005 14 2014 Surface Construction Supervisor EARNEST H. LUKIE S 42 78 1978 Surface Mine Foreman JAMES W. LUNDEN SC1386 95 1995 Surface Construction Supervisor GREGG H. LUNN SC 2458 06 2006 Surface Construction Supervisor TERRY O. LUNSFORD SC1524 96 1996 Surface Construction Supervisor BILLY J. LUSK SC1312 95 1995 Surface Construction Supervisor DARREN LUSK SC 2618 08 2008 Surface Construction Supervisor HENRY T. LUSK S 4271 07 2007 Surface Mine Foreman JAMES R. LUSK S 3187 96 1996 Surface Mine Foreman KEVIN LUSK S 4558 08 2008 Surface Mine Foreman RONNIE J. LUSK S 1986 85 1985 Surface Mine Foreman VANCIE K. LUSK S 814 79 1979 Surface Mine Foreman WENDELL D. LUSK SC 2262 04 2004 Surface Construction Supervisor JERRAD W. LUTHY S 5449 17 2017 Surface Mine Foreman GEORGE J. LUTZ IV SC 2530 07 2007 Surface Construction Supervisor CHARLES E. LYALL S 1400 81 1981 Surface Mine Foreman JOHN P. LYCANS S 4470 08 2008 Surface Mine Foreman JOHN P. LYCANS S 1100 A 2007 Asst. Surface Mine Foreman JASON K. LYKINS S 5641 20 2020 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE RANCE R. LYNCH SS248 86 1986 Shaft & Slope Examiner Foreman RANDY LYNCH SC 2994 14 2014 Surface Construction Supervisor ROBERT G. LYNCH SC819 86 1986 Surface Construction Supervisor THOMAS M LYNCH SC 1395 95 1995 Surface Construction Supervisor THOMAS L. LYNN SS 178 80 1980 Shaft & Slope Examiner Foreman DAVID N. LYONS SC782 85 1985 Surface Construction Supervisor JAMES W. LYONS S 5232 14 2014 Surface Mine Foreman LANNY K. LYONS S 3836 04 2004 Surface Mine Foreman MICHAEL H. LYONS S 2492 90 1990 Surface Mine Foreman WESLEY A. LYONS S 5575 19 2019 Surface Mine Foreman HAROLD E. MABARDY S 5282 15 2015 Surface Mine Foreman DONALD RICHARD MacDONALD S 1783 83 1983 Surface Mine Foreman ROBERT A. MACDOWELL SC 2809 11 2011 Surface Construction Supervisor ALVIN N. MACE S 2293 88 1988 Surface Mine Foreman DAVID M. MACE S 2450 89 1989 Surface Mine Foreman JAMES RALPH MACE S 928 79 1979 Surface Mine Foreman KENNETH Y. MACE S 1489 81 1981 Surface Mine Foreman MICHAEL MACE SC 2066 00 2000 Surface Construction Supervisor STEPHEN G. MACKLEN SC497 83 1983 Surface Construction Supervisor RONALD D MACKLEY SC 1894 98 1998 Surface Construction Supervisor KEVIN F. MACY SC 2298 05 2005 Surface Construction Supervisor ROBERT D. MAGERS SC273 82 1982 Surface Construction Supervisor ANTHONY T. MAGGARD SC 3098 18 2018 Surface Construction Supervisor JOSHUA R. MAGGARD SC 3068 17 2017 Surface Construction Supervisor LOUIS M. MAGGARD S 911 79 1979 Surface Mine Foreman SAMUEL D. MAGGARD S 3840 04 2004 Surface Mine Foreman GENE MAGNANI S 4256 07 2007 Surface Mine Foreman JERRY W. MAHAFFEY S 1470 81 1981 Surface Mine Foreman GARRY A. MAHAN S 1210 79 1979 Surface Mine Foreman BRANDON MAHON S 4738 10 2010 Surface Mine Foreman BRUCE MAHON S 4218 06 2006 Surface Mine Foreman TIMOTHY MAHON S 3527 01 2001 Surface Mine Foreman DENNY R. MAHONE S 2043 85 1985 Surface Mine Foreman HARLAN MAIDEN S 1398 81 1981 Surface Mine Foreman ARTHUR L. MAIN SS 10977 1977 Shaft & Slope Examiner Foreman DAVID MAINE SS 365 05 2005 Shaft & Slope Examiner Foreman VIRGINIA P. MAIOLO S 5351 16 2016 Surface Mine Foreman ROGER C. MALCOMB S 5531 18 2018 Surface Mine Foreman THOMAS H. MALCOMB S 2428 89 1989 Surface Mine Foreman CHARLES L. MALCOMB, II S 153481 1981 Surface Mine Foreman CESAR MALDONADO SC 2552 07 2007 Surface Construction Supervisor CASMIR H. MALISZKA SC 536 83 1983 Surface Construction Supervisor RICHARD A. MALLE S 5585 19 2019 Surface Mine Foreman DAVID J. MALLORY SC722 84 1984 Surface Construction Supervisor DONALD N. MALLOW S 1148 79 1979 Surface Mine Foreman HARMON R. MALLOW S 279 79 1979 Surface Mine Foreman RONALD L. MALLOW S 2201 87 1987 Surface Mine Foreman ANTHONY MAMONE, JR S 2866 92 1992 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MICHAEL MANCUSO S 2029 85 1985 Surface Mine Foreman CHARLES WALTER MANDEVILLE S 588 79 1979 Surface Mine Foreman BOBBY MANEY SS 56 06 2006 Shaft and Slope Superintendent BOBBY R. MANEY SS 30097 1997 Shaft & Slope Examiner Foreman TERRY L. MANLEY SC 2307 05 2005 Surface Construction Supervisor DANNY P MANN S 3274 98 1998 Surface Mine Foreman RICHARD A. MANN SC1111 94 1994 Surface Construction Supervisor TIMOTHY R. MANN SC 2383 05 2005 Surface Construction Supervisor WILLIAM V. MANN SC844 86 1986 Surface Construction Supervisor JERRY D. MANN II S 4677 09 2009 Surface Mine Foreman FRANK B. MANN, III S 755 79 1979 Surface Mine Foreman LOWELL D. MANNING SC019 82 1982 Surface Construction Supervisor GARLAND MANNS S 5113 12 2012 Surface Mine Foreman LEE D. MANNS S 2718 91 1991 Surface Mine Foreman PAUL G. MANNS SC 3046 16 2016 Surface Construction Supervisor DONALD MANNS, JR. S 1145 A 2010 Asst. Surface Mine Foreman DONALD G. MANNS, JR. S 5294 15 2015 Surface Mine Foreman PAUL R. MANTZ S 4041 06 2006 Surface Mine Foreman JACOB J. MAPEL SC 3069 17 2017 Surface Construction Supervisor RANDALL D. MAPES S 5085 12 2012 Surface Mine Foreman CRAIG A. MARCUM S 4618 09 2009 Surface Mine Foreman CRAIG A. MARCUM S 1108 A 2008 Asst. Surface Mine Foreman DAVID J. MARCUM S 4295 07 2007 Surface Mine Foreman DAVID J. MARCUM S 1078 A 2007 Asst. Surface Mine Foreman DELBERT L. MARCUM S 5197 13 2013 Surface Mine Foreman ELLIOTT MARCUM SC1754 97 1997 Surface Construction Supervisor ERNEST H. MARCUM S 1839 84 1984 Surface Mine Foreman GLEN D. MARCUM SC1245 95 1995 Surface Construction Supervisor GLEN R. MARCUM SC1238 95 1995 Surface Construction Supervisor HARLEY W. MARCUM SC 2937 13 2013 Surface Construction Supervisor HARRY L. MARCUM SC334 83 1983 Surface Construction Supervisor HURSTON S. MARCUM SC 2248 04 2004 Surface Construction Supervisor JERRY MARCUM S 3178 96 1996 Surface Mine Foreman JOHN B. MARCUM S 2397 89 1989 Surface Mine Foreman JOHN C. MARCUM S 4612 09 2009 Surface Mine Foreman JONATHAN MARCUM S 3444 01 2001 Surface Mine Foreman LEONARD MARCUM S 2649 91 1991 Surface Mine Foreman MICHAEL E. MARCUM S 3361 99 1999 Surface Mine Foreman PAUL D. MARCUM S 1512 81 1981 Surface Mine Foreman RONALD D. MARCUM S 4259 07 2007 Surface Mine Foreman TIMMY C. MARCUM S 2841 92 1992 Surface Mine Foreman TRAVIS R. MARCUM S 4207 06 2006 Surface Mine Foreman WADE MARCUM S 599 79 1979 Surface Mine Foreman WILLIAM MARCUM S 2405 89 1989 Surface Mine Foreman ARTHUR MARCUM, JR. S 1503 81 1981 Surface Mine Foreman TONY MARCUM, JR. S 3946 05 2005 Surface Mine Foreman DONALD R. MARCUS S 4694 09 2009 Surface Mine Foreman BARIEL MARIN SS 163 79 1979 Shaft & Slope Examiner Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JAMES M. MARKHAM S 4950 11 2011 Surface Mine Foreman GARY R. MARKLEY S 829 79 1979 Surface Mine Foreman JERRY L. MARKS SC135 82 1982 Surface Construction Supervisor RONALD C. MARKWOOD SC 2587 08 2008 Surface Construction Supervisor DAVID W. MARPLE S 2269 88 1988 Surface Mine Foreman RICHARD A. MARPLE S2278 88 1988 Surface Mine Foreman GARY L. MARQUIS S 73 78 1978 Surface Mine Foreman GARY L. MARQUIS SC259 82 1982 Surface Construction Supervisor RONALD V. MARRARA S 1592 82 1982 Surface Mine Foreman GARY A. MARSH S 1727 83 1983 Surface Mine Foreman HAROLD R. MARSH S 1250 80 1980 Surface Mine Foreman PHILIP C. MARSH, II S 2807 92 1992 Surface Mine Foreman CHRIS N. MARSHALL S 3990 05 2005 Surface Mine Foreman DAVE A. MARSHALL S 2638 91 1991 Surface Mine Foreman JERRY MARSHALL SC 2564 07 2007 Surface Construction Supervisor JOE W. MARSHALL SC 1998 99 1999 Surface Construction Supervisor JOEL B. MARSHALL S 3492 01 2001 Surface Mine Foreman LARRY A. MARSHALL S 1559 82 1982 Surface Mine Foreman LARRY A. MARSHALL SC378 83 1983 Surface Construction Supervisor RANDY J. MARSHALL SS 332 00 2000 Shaft & Slope Examiner Foreman RICHARD P. MARSHALL SS 95 11 2011 Shaft and Slope Superintendent RONALD L. MARSHALL SS 16479 1979 Shaft & Slope Examiner Foreman RONALD L. MARSHALL SC636 83 1983 Surface Construction Supervisor TARANCE J. MARSHALL S 2959 94 1994 Surface Mine Foreman CECIL C. MARSHALL, JR. SC1338 95 1995 Surface Construction Supervisor TONY S. MARSICO S 4485 08 2008 Surface Mine Foreman JAMES B. MARSTELLER SS 278 91 1991 Shaft & Slope Examiner Foreman JORDAN B. MARSTELLER SS 383 09 2009 Shaft & Slope Examiner Foreman ROBERT G. MARSTELLER SS 24186 1986 Shaft & Slope Examiner Foreman ANTHONY R. MARTIN S 1718 82 1982 Surface Mine Foreman BURK D. MARTIN S 4657 09 2009 Surface Mine Foreman DALE C. MARTIN S 238 78 1978 Surface Mine Foreman DANA K. MARTIN SC 3167 20 2020 Surface Construction Supervisor DAVID L. MARTIN S 1269 85 1985 Surface Mine Foreman DAVID L. MARTIN S 5525 18 2018 Surface Mine Foreman DAVID L. MARTIN S 1269 18 1980 Asst. Surface Mine Foreman DAVID L. MARTIN S 1126 A 2008 Asst. Surface Mine Foreman DENVER MARTIN S 750 79 1979 Surface Mine Foreman DOUGLAS K. MARTIN S 3553 01 2001 Surface Mine Foreman ERIC A. MARTIN S 4006 05 2005 Surface Mine Foreman ERVIN T. MARTIN SC428 83 1983 Surface Construction Supervisor JAMES A. MARTIN SC593 83 1983 Surface Construction Supervisor JAMES G. MARTIN S 2779 92 1992 Surface Mine Foreman JOHN R. MARTIN S 1161 79 1979 Surface Mine Foreman JOHN V. MARTIN S 3123 95 1995 Surface Mine Foreman JOHN V. MARTIN SC1813 97 1997 Surface Construction Supervisor JOHN W. MARTIN SC1801 97 1997 Surface Construction Supervisor KENNA EUGENE MARTIN S 222 78 1978 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE LOCKIE MARTIN S 14 78 1978 Surface Mine Foreman MICHAEL MARTIN S 4518 08 2008 Surface Mine Foreman RANDY MARTIN S 4524 08 2008 Surface Mine Foreman RANDY L. MARTIN S 1113 A 2008 Asst. Surface Mine Foreman RICHARD E. MARTIN S 2730 91 1991 Surface Mine Foreman RICHARD V. MARTIN SC1712 97 1997 Surface Construction Supervisor RODNEY D. MARTIN S 3376 00 2000 Surface Mine Foreman WALTER F. MARTIN SC594 83 1983 Surface Construction Supervisor WILLIAM K. MARTIN SC 527 83 1983 Surface Construction Supervisor WILLIAM M. MARTIN, JR S 5404 17 2017 Surface Mine Foreman DAVID A. MARTIN, JR. S 4444 08 2008 Surface Mine Foreman THOMAS E. MARUSA S 2797 92 1992 Surface Mine Foreman LAWRENCE A. MASCI SC456 83 1983 Surface Construction Supervisor RALPH V. MASHUDA S 1481 81 1981 Surface Mine Foreman WALTER MASKIL SS 355 04 2004 Shaft & Slope Examiner Foreman CADE A. MASON S 5199 13 2013 Surface Mine Foreman DAVID J. MASON SC1496 96 1996 Surface Construction Supervisor GARY R MASON SS 321 98 1998 Shaft & Slope Examiner Foreman GERALD S. MASON SC757 84 1984 Surface Construction Supervisor LUKE MASON SS 104 12 2012 Shaft and Slope Superintendent ROGER D. MASON S 2379 89 1989 Surface Mine Foreman STEPHEN L. MASON SS 10377 1977 Shaft & Slope Examiner Foreman JOHN E. MASSEY S 361 79 1979 Surface Mine Foreman GREG L. MASSIE S 5192 13 2013 Surface Mine Foreman LIBOR MASTALIR SC 3048 16 2016 Surface Construction Supervisor MARK T. MASTERS SC303 83 1983 Surface Construction Supervisor ROBERT L. MATHEM SC266 82 1982 Surface Construction Supervisor DENVER J. MATHES S 1313 80 1980 Surface Mine Foreman LEONARD L. MATHEWS S 136 78 1978 Surface Mine Foreman ROBERT S. MATHEWS S 1639 25 1982 Asst. Surface Mine Foreman DAVID F. MATHIAS SC571 83 1983 Surface Construction Supervisor JAMES F. MATICS SC155 82 1982 Surface Construction Supervisor SIMON S. MATNEY S 3939 05 2005 Surface Mine Foreman TAYLOR J. MATTHEW SC1797 97 1997 Surface Construction Supervisor DAVID D. MATTHEWS S 508 79 1979 Surface Mine Foreman HOWARD R. MATTHEWS S 276 79 1979 Surface Mine Foreman JAMES E. MATTHEWS S 268 79 1979 Surface Mine Foreman TERRY W. MATTHEWS S 2434 89 1989 Surface Mine Foreman SIRENO F. MATTIE SS 270 91 1991 Shaft & Slope Examiner Foreman JOSPEH D. MATUS SC454 83 1983 Surface Construction Supervisor JOHN S. MATZ S 935 79 1979 Surface Mine Foreman LARRY D. MAUK S 2953 93 1993 Surface Mine Foreman WILLIAM N. MAUK S 2081 85 1985 Surface Mine Foreman JOSEPH L. MAUST SC 3084 18 2018 Surface Construction Supervisor LYLBURN MAXWELL S 339 79 1979 Surface Mine Foreman BRIAN S. MAY S 4467 08 2008 Surface Mine Foreman CHARLES MAY S 2874 93 1993 Surface Mine Foreman ERNEST R. MAY S 4397 08 2008 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JON T. MAY S 4701 09 2009 Surface Mine Foreman JOSEPH A. MAY S 3258 98 1998 Surface Mine Foreman MELTON J. MAY SS 120 77 1977 Shaft & Slope Examiner Foreman MORGAN L. MAY S 2602 91 1991 Surface Mine Foreman PHILIP E. MAY S 4386 07 2007 Surface Mine Foreman PHILIP E. MAY S 1079 A 2007 Asst. Surface Mine Foreman ROGER K. MAY SS 199 80 1980 Shaft & Slope Examiner Foreman STEVEN L. MAY SC 2855 12 2012 Surface Construction Supervisor JOHN A. MAYFIELD SS 67 06 2006 Shaft and Slope Superintendent JOHN A. MAYFIELD SS 28593 1993 Shaft & Slope Examiner Foreman JOHN A. MAYFIELD SC1663 96 1996 Surface Construction Supervisor EARL M. MAYFIELD III S 3637 02 2002 Surface Mine Foreman JESSE C. MAYLE SC 2178 02 2002 Surface Construction Supervisor CHARLES J. MAYNARD SC395 83 1983 Surface Construction Supervisor CLARENCE MAYNARD S 4408 08 2008 Surface Mine Foreman DARRELL E. MAYNARD S 1392 80 1980 Surface Mine Foreman DARRYL K. MAYNARD SC975 92 1992 Surface Construction Supervisor DAVID L. MAYNARD S 3590 02 2002 Surface Mine Foreman DAVIE E. MAYNARD SC1284 95 1995 Surface Construction Supervisor EUGENE MAYNARD S 2004 85 1985 Surface Mine Foreman GREGORY L. MAYNARD S 3452 01 2001 Surface Mine Foreman HENRY H. MAYNARD S3237 97 1997 Surface Mine Foreman HOWARD R. MAYNARD S 458 79 1979 Surface Mine Foreman JACK D. MAYNARD SC427 83 1983 Surface Construction Supervisor JOHNNY R. MAYNARD S 4698 09 2009 Surface Mine Foreman JOHNNY R. MAYNARD SC 2043 00 2000 Surface Construction Supervisor LEROY MAYNARD S 1515 81 1981 Surface Mine Foreman MATTHEW R. MAYNARD S 5259 14 2014 Surface Mine Foreman MICHAEL D. MAYNARD S 5400 17 2017 Surface Mine Foreman PAUL H. MAYNARD S 2868 92 1992 Surface Mine Foreman RANDY L. MAYNARD S 3731 03 2003 Surface Mine Foreman RAYMOND MAYNARD S 3029 94 1994 Surface Mine Foreman RAYMOND MAYNARD S 2236 87 1987 Surface Mine Foreman RAYMOND E. MAYNARD S 5163 13 2013 Surface Mine Foreman RAYMOND H. MAYNARD S 3379 00 2000 Surface Mine Foreman RAYMOND L. MAYNARD S 2774 92 1992 Surface Mine Foreman RICHARD MAYNARD S 2002 85 1985 Surface Mine Foreman ROGER MAYNARD S 1343 80 1980 Surface Mine Foreman ROGER D. MAYNARD S 2775 92 1992 Surface Mine Foreman THOMAS P. MAYNARD S 5116 12 2012 Surface Mine Foreman WILLIAM A. MAYNARD S 4260 07 2007 Surface Mine Foreman WILLIAM J. MAYNARD S 4557 08 2008 Surface Mine Foreman DEWEY L. MAYNARD, JR. S 3934 05 2005 Surface Mine Foreman GREGORY L. MAYNARD, JR. S 4893 11 2011 Surface Mine Foreman HENRY H. MAYNARD, JR. S 4268 07 2007 Surface Mine Foreman JOHNNY N. MAYNE SC 2287 05 2005 Surface Construction Supervisor DONALD W. MAYNOR S 4406 08 2008 Surface Mine Foreman CHRISTOPHER E. MAYS S 4421 08 2008 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CHRISTOPHER E. MAYS S 1099 A 2007 Asst. Surface Mine Foreman LARRY H. MAZZELLA S 3119 95 1995 Surface Mine Foreman DAVID L. MCALLISTER SC1192 94 1994 Surface Construction Supervisor SAMUEL I. MCALLISTER SC1162 94 1994 Surface Construction Supervisor RICHARD L. MCBEE SS 27491 1991 Shaft & Slope Examiner Foreman RICHARD L. MCBEE SC1771 97 1997 Surface Construction Supervisor WILLIAM F. MCBRAYER s 1601 82 1982 Surface Mine Foreman WILLIAM F. MCBRAYER SC1382 95 1995 Surface Construction Supervisor JOEL W. MCCANN SC1677 96 1996 Surface Construction Supervisor NORRIS N. MCCARTHY SC706 84 1984 Surface Construction Supervisor WILLIAM L. MCCARTHY S 4981 11 2011 Surface Mine Foreman ARNOLD R. McCARTNEY s 400 79 1979 Surface Mine Foreman CHARLES D. McCARTNEY SS 276 91 1991 Shaft & Slope Examiner Foreman MICHAEL W. MCCARTY S 2062 85 1985 Surface Mine Foreman BEECHER J. MCCARTY, III S 4990 11 2011 Surface Mine Foreman BEECHER MCCARTY, JR. S 2728 91 1991 Surface Mine Foreman GERALD E. McCASLIN S 3109 95 1995 Surface Mine Foreman GARY C. McCAULEY S 1293 80 1980 Surface Mine Foreman FREDERICK MCCLAIN S 1590 82 1982 Surface Mine Foreman KEITH A. MCCLAIN SC939 91 1991 Surface Construction Supervisor JERRY M. MCCLANAHAN SC1327 95 1995 Surface Construction Supervisor JOHN C. MCCLANAHAN S 2202 87 1987 Surface Mine Foreman FRANKLIN H. MCCLAUGHERTY S 4313 07 2007 Surface Mine Foreman JERRY L. MCCLELLAN S 3440 01 2001 Surface Mine Foreman MATHEW S. McCLOUD SC017 82 1982 Surface Construction Supervisor BILLY E. MCCLUNG S 3208 97 1997 Surface Mine Foreman CLYDE V. MCCLUNG 2178 1978 Surface Mine Foreman DONALD R. MCCLUNG SC 3100 18 2018 Surface Construction Supervisor GROVER F. McCLUNG S 2592 91 1991 Surface Mine Foreman JAMES C. MCCLUNG S 975 79 1979 Surface Mine Foreman JAMES D MCCLUNG S 3265 98 1998 Surface Mine Foreman JOSEPH S. McCLUNG S 1545 81 1981 Surface Mine Foreman PHILLIP E. MCCLUNG SC 2542 07 2007 Surface Construction Supervisor ROBERT S. MCCLUNG S 3961 05 2005 Surface Mine Foreman WARREN MCCLUNG SC 2093 01 2001 Surface Construction Supervisor WILLIAM EDWARD McCLUNG S 980 79 1979 Surface Mine Foreman BOBBY J. MCCLURE S 4368 07 2007 Surface Mine Foreman DARRELL C. McCLURE SC050 82 1982 Surface Construction Supervisor DONALD W. MCCLURE SC1233 95 1995 Surface Construction Supervisor DOUGLAS I. MCCLURE SC1422 95 1995 Surface Construction Supervisor EDWARD D. MCCLURE S 1280 80 1980 Surface Mine Foreman JEFFREY A. MCCLURE S 2402 89 1989 Surface Mine Foreman JOHNNY R. MCCLURE S 1842 84 1984 Surface Mine Foreman ROGER C. McCLURE SC309 83 1983 Surface Construction Supervisor CHARLES E. MCCOMAS S 1644 82 1982 Surface Mine Foreman DERRIC S. MCCOMAS S 5606 19 2019 Surface Mine Foreman MICHAEL H. MCCOMAS SC889 88 0 Surface Construction Supervisor SHANE K. MCCOMAS S 4583 08 2008 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE THOMAS F. MCCOMAS S 5112 12 2012 Surface Mine Foreman THOMAS E. MCCOMAS JR. S 1031 A 2003 Asst. Surface Mine Foreman CLYDE H. MCCOMAS, JR. S 3446 01 2001 Surface Mine Foreman CLAYTON M. MCCOMBS SC 3151 20 2020 Surface Construction Supervisor PAUL I. MCCOMBS SC791 85 1985 Surface Construction Supervisor DONALD G. MCCONNELL S 1622 82 1982 Surface Mine Foreman JASON C. MCCONNELL S 4902 11 2011 Surface Mine Foreman BARRY D. MCCORMICK S 4538 08 2008 Surface Mine Foreman BARRY D. MCCORMICK S 1114 A 2008 Asst. Surface Mine Foreman CHARLES R. MCCORMICK S 4101 06 2006 Surface Mine Foreman GERALD SHELTON McCORMICK S 1482 81 1981 Surface Mine Foreman JOHN P. MCCORMICK SC739 84 1984 Surface Construction Supervisor KENNETH L. McCORMICK SS 22283 1983 Shaft & Slope Examiner Foreman PAUL A. MCCORMICK SC1518 96 1996 Surface Construction Supervisor GARY L. MCCOURT S 3952 05 2005 Surface Mine Foreman GARY L. MCCOURT S 1057 A 2005 Asst. Surface Mine Foreman JAMES C. MCCOURT SC 2121 01 2001 Surface Construction Supervisor JEFFERY A. MCCOURT S 4238 06 2006 Surface Mine Foreman STACY L. MCCOURT SC 2636 08 2008 Surface Construction Supervisor TOMMY H. MCCOURT SC 2119 01 2001 Surface Construction Supervisor WILLIAM A. MCCOURT S 37 78 1978 Surface Mine Foreman BOBBY MCCOWIN SC 2491 06 2006 Surface Construction Supervisor GARRIS D. MCCOWN S 2512 90 1990 Surface Mine Foreman BRUCE L. MCCOY S 3852 04 2004 Surface Mine Foreman BURFORD R. MCCOY S 1278 80 1980 Surface Mine Foreman CLARENCE MCCOY S 4361 07 2007 Surface Mine Foreman DANA E. MCCOY S 959 78 1979 Surface Mine Foreman DAVID A. McCOY S 2942 93 1993 Surface Mine Foreman DAVID M. MCCOY S 5025 12 2012 Surface Mine Foreman EMIL McCOY S 1222 79 1979 Surface Mine Foreman FREDDIE G. MCCOY SC 2314 05 2005 Surface Construction Supervisor GARY B. MCCOY S 3698 03 2003 Surface Mine Foreman KENNETH R. MCCOY S 2083 85 1985 Surface Mine Foreman MARK K. MCCOY SC 2402 05 2005 Surface Construction Supervisor NICKOLAS S. MCCOY S 5389 16 2016 Surface Mine Foreman PATRICK S. MCCOY S 4483 08 2008 Surface Mine Foreman PAUL MCCOY S 5581 19 2019 Surface Mine Foreman PERRY W. McCOY SS 12678 1978 Shaft & Slope Examiner Foreman SHANNON W. MCCOY S 5491 18 2018 Surface Mine Foreman STEVEN P. MCCOY S 5078 12 2012 Surface Mine Foreman DAVID N. MCCRACKEN SC 2585 08 2008 Surface Construction Supervisor JERRY W. MCCRACKEN S 3057 95 1995 Surface Mine Foreman RONALD C. McCRACKEN SC054 82 1982 Surface Construction Supervisor WALTER L. MCCRACKEN S 2371 89 1989 Surface Mine Foreman DAVID N. MCCRACKEN II SC 2800 11 2011 Surface Construction Supervisor MICHAEL O. MCCROSKEY SC1585 96 1996 Surface Construction Supervisor PAUL M. MCCROSKEY SC1570 96 1996 Surface Construction Supervisor SHAWN J. MCCULLEY SS 117 19 2019 Shaft and Slope Superintendent NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE BERNARD J. McCULLOUGH SS 13178 1978 Shaft & Slope Examiner Foreman BERNARD J. McCULLOUGH SC124 82 1982 Surface Construction Supervisor GREG R. MCCULLOUGH S 2282 88 1988 Surface Mine Foreman WILLIAM J. MCCULLOUGH S 5174 13 2013 Surface Mine Foreman DELBERT S. MCCUMBERS S 5011 11 2011 Surface Mine Foreman LEONARD McCUNE S 35 78 1978 Surface Mine Foreman TIMOTHY S. MCCURDY SC1686 96 1996 Surface Construction Supervisor PLIN McCURRY SC306 83 1983 Surface Construction Supervisor ROBERT J. McCURRY SC113 82 1982 Surface Construction Supervisor RUSSELL McCURRY SC304 83 1983 Surface Construction Supervisor DONALD J. McCUTCHEON S 264 79 1979 Surface Mine Foreman CHARLES HUNTER McDANIEL S 162 78 1978 Surface Mine Foreman CHRISTOPHER R. MCDANIEL SC 3110 19 2019 Surface Construction Supervisor DAVID L. MCDANIEL S 2302 88 1988 Surface Mine Foreman JAMES EDWARD McDANIEL S 158 78 1978 Surface Mine Foreman JAMES RAYMOND McDANIEL S 251 79 1979 Surface Mine Foreman LARRY J. McDANIEL SS 140 78 1978 Shaft & Slope Examiner Foreman NATHAN L. MCDANIEL S2267 88 1988 Surface Mine Foreman MARK J. MCDERMOTT SC 1974 99 1999 Surface Construction Supervisor GERALD N. MCDIFFITT SC 2516 06 2006 Surface Construction Supervisor B B. MCDONALD S 1311 80 1980 Surface Mine Foreman WAYNE T. MCDONALD S 4539 08 2008 Surface Mine Foreman DAVID L. McDORMAN S 1863 84 1984 Surface Mine Foreman WILLIAM S. MCDOWELL S 2495 90 1990 Surface Mine Foreman PAUL R. MCELWAIN S 2657 91 1991 Surface Mine Foreman MONTE J. McFADDIN SS 23384 1984 Shaft & Slope Examiner Foreman JAMES E. McFARLAND SS 20280 1980 Shaft & Slope Examiner Foreman DANIEL C. MCFEE S 1084 79 1979 Surface Mine Foreman HAYWARD OSCAR McGEE, JR. S 1542 81 1981 Surface Mine Foreman CHRISTOPHER W. MCGHEE SC 2312 05 2005 Surface Construction Supervisor JEFFREY S. McGINNIS SS 236 84 1984 Shaft & Slope Examiner Foreman GERALD R. MCGINNIS SR. S 854 79 1979 Surface Mine Foreman ROBERT P. MCGLEE S 1428 81 1981 Surface Mine Foreman ERIC T. MCGLOTHLIN S 3832 04 2004 Surface Mine Foreman JEROME MCGLOTHLIN S 3743 03 2003 Surface Mine Foreman MARK D. MCGLOTHLIN SC 1956 98 1998 Surface Construction Supervisor JAMES R. MCGOVERN SC 3122 19 2019 Surface Construction Supervisor BENJIMAN W. MCGRAW S 3973 05 2005 Surface Mine Foreman CARLOS E. MCGRAW S 3642 02 2002 Surface Mine Foreman DAVID P. MCGRAW S 5561 19 2019 Surface Mine Foreman JAMES E. MCGRAW SC445 83 1983 Surface Construction Supervisor CHARLES W. MCGUIRE SC 2884 12 2012 Surface Construction Supervisor GEORGE A. MCGUIRE S 575 79 1979 Surface Mine Foreman HARLOW W. MCHENRY SC1256 95 1995 Surface Construction Supervisor ISAAC M. MCHENRY JR. SC1839 97 1997 Surface Construction Supervisor JAMES D. MCINTOSH S 1388 80 1980 Surface Mine Foreman NICHOLSON A. MCINTOSH S 1366 80 1980 Surface Mine Foreman RICHARD L. MCKENREY S 1415 81 1981 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE HARRY D. McKENZIE SC423 83 1983 Surface Construction Supervisor BASIL J. MCKINNEY SC798 85 1985 Surface Construction Supervisor CHARLES D. MCKINNEY S 3341 99 1999 Surface Mine Foreman ENOCH McKINNEY SC134 82 1982 Surface Construction Supervisor KEVIN L. MCKINNEY S 4363 07 2007 Surface Mine Foreman KEVIN L. MCKINNEY S 1085 A 2007 Asst. Surface Mine Foreman RICHARD M. McKINNEY SC1371 95 1995 Surface Construction Supervisor ROBERT L. MCKINNEY S 3300 98 1998 Surface Mine Foreman ROGER D. MCKINNEY S 4956 11 2011 Surface Mine Foreman ROY E. MCKINNEY SC 2010 99 1999 Surface Construction Supervisor THERMON L. MCKINNEY S 3065 95 1995 Surface Mine Foreman GARY D. MCKINNEY JR. SS 392 18 2018 Shaft & Slope Examiner Foreman EVERETTE L. MCKINNEY, JR. S 4516 08 2008 Surface Mine Foreman GUY L. McKOWN S 2824 92 1992 Surface Mine Foreman HOMER A. MCKOWN S 4194 06 2006 Surface Mine Foreman JEFFREY K. MCLAUGHLIN S 4974 11 2011 Surface Mine Foreman LARRY K. McLAUGHLIN SC228 82 1982 Surface Construction Supervisor ROGER F. MCLAUGHLIN S3228 97 1997 Surface Mine Foreman RANDY L. MCMAHON SC805 85 1985 Surface Construction Supervisor DONALD E. McMILLION SS 26290 1990 Shaft & Slope Examiner Foreman DOUGLAS E. MCMILLION SS 19 04 2004 Shaft and Slope Superintendent MURL MCMILLION S 4825 10 2010 Surface Mine Foreman RANDY L MCMILLION S 3273 98 1998 Surface Mine Foreman RANDY L. MCMILLION SC822 86 1986 Surface Construction Supervisor TONY L. MCMILLION SS 361 04 2004 Shaft & Slope Examiner Foreman VIRGIL L. McMILLION S 115 78 1978 Surface Mine Foreman WILLIAM S. McMILLION S 315 79 1979 Surface Mine Foreman AUSTIN L. McMILLION S 964 79 1979 Surface Mine Foreman WILLIAM H. MCNABB SC890 88 0 Surface Construction Supervisor CARL J. MCNEAL S 4399 08 2008 Surface Mine Foreman PHILLIP ALLAN McNEAL S 1098 79 1979 Surface Mine Foreman WILLIAM J. MCNEAL, JR. SC912 90 1990 Surface Construction Supervisor HAROLD RAY McNEAR S 57 78 1978 Surface Mine Foreman BILLY MCNEELY S 4954 11 2011 Surface Mine Foreman JAMES E. MCNEELY S 4265 07 2007 Surface Mine Foreman TRAVIS G. MCNEELY S 5587 19 2019 Surface Mine Foreman EARL D. MCNEILL S 381 79 1979 Surface Mine Foreman LARRY MERLE MCNICHOLS S 2770 92 1992 Surface Mine Foreman KENNETH E. McNULTY S 74 78 1978 Surface Mine Foreman RICHARD D. MCNUTT SC1313 95 1995 Surface Construction Supervisor JERRY K. MCPEEK S 5089 12 2012 Surface Mine Foreman RODNEY E. McQUAIN S 2966 94 1994 Surface Mine Foreman STEPHEN E. McQUAIN SC238 82 1982 Surface Construction Supervisor TERRY R. MCROY S 3374 00 2000 Surface Mine Foreman CHARLES E. MCTHENY SC662 83 1983 Surface Construction Supervisor FRANK A. McVICKERS SC391 83 1983 Surface Construction Supervisor DONALD L. MCVITTY S 1078 79 1979 Surface Mine Foreman RICK E. MCWAIN SC 2153 02 2002 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CLOYDE MEADE SC995 92 1992 Surface Construction Supervisor DALE L. MEADE SC994 92 1992 Surface Construction Supervisor MARK MEADE SC996 92 1992 Surface Construction Supervisor PHILIP L. MEADE S 2708 91 1991 Surface Mine Foreman DAVID P. MEADOWS SC1331 95 1995 Surface Construction Supervisor DONALD L. MEADOWS SC279 83 1983 Surface Construction Supervisor JAMES MEADOWS S 4071 06 2006 Surface Mine Foreman JAMES E. MEADOWS SC281 83 1983 Surface Construction Supervisor JOHN T. MEADOWS S 3397 00 2000 Surface Mine Foreman JONATHAN P. MEADOWS SC 2803 11 2011 Surface Construction Supervisor NATHAN T. MEADOWS S 4040 06 2006 Surface Mine Foreman RICHARD D. MEADOWS S 114 78 1978 Surface Mine Foreman RICHARD E. MEADOWS S 742 79 1979 Surface Mine Foreman STEPHEN R. MEADOWS S 4002 05 2005 Surface Mine Foreman STEVEN L. MEADOWS S 2254 88 1988 Surface Mine Foreman TIMOTHY R. MEADOWS S 3290 98 1998 Surface Mine Foreman CHARLEY MEDDINGS SC 2087 01 2001 Surface Construction Supervisor CHARLEY W. MEDDINGS S 4144 06 2006 Surface Mine Foreman KEVIN M. MEDLEN S 4842 10 2010 Surface Mine Foreman KEVIN M. MEDLEN SC 3089 18 2018 Surface Construction Supervisor CULLEN P. MEDLEY SC 3119 19 2019 Surface Construction Supervisor RANDY W. MEDLIN S 4873 10 2010 Surface Mine Foreman EDWARD F. MEEGHAN SS 84 76 1976 Shaft & Slope Examiner Foreman MARK E. MEEHAN SC 2932 13 2013 Surface Construction Supervisor RUSSELL J. MEEK S 5059 12 2012 Surface Mine Foreman JAMES N. MEEK, III S 4926 11 2011 Surface Mine Foreman F. ALLEN MEEK, JR. S 2105 86 1986 Surface Mine Foreman F. ALLEN MEEK, JR. SC 558 83 1983 Surface Construction Supervisor WILLIAM E. MEEKS, JR. S 4262 07 2007 Surface Mine Foreman CLYDE E. MEENACH S 2341 88 1988 Surface Mine Foreman DELMER T. MEIKLE S 2480 90 1990 Surface Mine Foreman HENRY J. MEISSENIER SC1073 93 1993 Surface Construction Supervisor JOHN T. MELICK S 219 78 1978 Surface Mine Foreman PAUL H. MELLOTT SC1511 96 1996 Surface Construction Supervisor MATTHEW D. MELOY SC 2533 07 2007 Surface Construction Supervisor CHARLIE MELTON SC1037 92 1992 Surface Construction Supervisor JEFFREY L. MELTON S 3152 96 1996 Surface Mine Foreman BASIL F. MELVIN SS 14978 1978 Shaft & Slope Examiner Foreman MAXIMINO MENDEZ SC 3087 18 2018 Surface Construction Supervisor WALTER HOWARD MENEAR S 99 78 1978 Surface Mine Foreman ROY L. MENEFEE SC275 82 1982 Surface Construction Supervisor VINCENT C. MENEI S 2333 88 1988 Surface Mine Foreman JOHNNY C. MENEI,SR. S 2332 88 1988 Surface Mine Foreman EDDIE J. MEPHERSON S 2555 90 1990 Surface Mine Foreman CHESTER OLIVER MEREDITH S 1611 82 1982 Surface Mine Foreman MATTHEW D. MERRIFIELD SS 33 05 2005 Shaft and Slope Superintendent WOODROW MERRITTE S 2196 87 1987 Surface Mine Foreman ADAM H. MESSER S 4861 10 2010 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CARTER L. MESSER S 3752 04 2004 Surface Mine Foreman GLENN R. MESSER S 2213 87 1987 Surface Mine Foreman JOE E. MESSER SC1211 95 1995 Surface Construction Supervisor JOSHUA MESSER S 4577 08 2008 Surface Mine Foreman MICHAEL MESSER S 3546 01 2001 Surface Mine Foreman WILLIAM A. MESSER S 3690 03 2003 Surface Mine Foreman TINEY MESSER, JR. S 4333 07 2007 Surface Mine Foreman RICHARD L. METHENEY SC1157 94 1994 Surface Construction Supervisor LEON C. METHENY S 917 79 1979 Surface Mine Foreman DANNY R. MICHAEL SC 512 83 1983 Surface Construction Supervisor ROBERT M. MICHAEL SC 2657 09 2009 Surface Construction Supervisor MARK MICHELINI S 1752 83 1983 Surface Mine Foreman DANNY L. MICK S 3328 99 1999 Surface Mine Foreman MICHAEL L. MICK S 3650 03 2003 Surface Mine Foreman JAMES H. MIDDLETON JR. SC 1954 98 1998 Surface Construction Supervisor BRANDON L. MIDKIFF S 5532 18 2018 Surface Mine Foreman RONALD MIDKIFF S 1331 80 1980 Surface Mine Foreman GREGORY J. MILAM S 3772 04 2004 Surface Mine Foreman JIMMY L. MILAM S 4859 10 2010 Surface Mine Foreman KEVIN L. MILAM SC 2122 01 2001 Surface Construction Supervisor RICHIE O. MILAM S 3899 05 2005 Surface Mine Foreman RICHIE O. MILAM S 1012 A 2001 Asst. Surface Mine Foreman ROGER L. MILAM S 1260 80 1980 Surface Mine Foreman ROBERT W. MILLAR S 2027 85 1985 Surface Mine Foreman ROBERT L. MILLARD SC872 86 1986 Surface Construction Supervisor ALLEN D. MILLER S 2421 89 1989 Surface Mine Foreman ANCIL L. MILLER S 1146 79 1979 Surface Mine Foreman ANDREW P. MILLER SC 3162 20 2020 Surface Construction Supervisor ARVEL L. MILLER S 3310 98 1998 Surface Mine Foreman BILLY R. MILLER S 1757 83 1983 Surface Mine Foreman BRIAN E. MILLER S 4013 05 2005 Surface Mine Foreman CARROLL J. MILLER SC 2679 09 2009 Surface Construction Supervisor CHARLES J. MILLER S 1790 83 1983 Surface Mine Foreman CHRIS MILLER S 3807 04 2004 Surface Mine Foreman CHRISTOPHER R. MILLER S 5249 14 2014 Surface Mine Foreman DANNY C. MILLER S 2543 90 1990 Surface Mine Foreman DARIN MILLER S 4142 06 2006 Surface Mine Foreman DON MILLER SC694 83 1983 Surface Construction Supervisor DONALD R. MILLER S 2253 88 1988 Surface Mine Foreman DONNELL MILLER S 5422 17 2017 Surface Mine Foreman DOUGLAS G. MILLER SC089 82 1982 Surface Construction Supervisor EDWARD W. MILLER S 2026 85 1985 Surface Mine Foreman EUGENE MILLER S 1321 80 1980 Surface Mine Foreman FREDRIC R. MILLER S 692 79 1979 Surface Mine Foreman GARY L. MILLER S 778 79 1979 Surface Mine Foreman GARY W. MILLER SC090 82 1982 Surface Construction Supervisor GEORGE M. MILLER SC1815 97 1997 Surface Construction Supervisor GREGORY MILLER SC1070 93 1993 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE GREGORY E. MILLER SC 3102 18 2018 Surface Construction Supervisor HARRY L. MILLER SC1119 94 1994 Surface Construction Supervisor JAMES A. MILLER S 2788 92 1992 Surface Mine Foreman JAMES W. MILLER S 3866 05 2005 Surface Mine Foreman JAMES EDWARD MILLER S 4442 08 2008 Surface Mine Foreman JOEY L. MILLER S 5305 15 2015 Surface Mine Foreman JOHN R. MILLER S 859 79 1979 Surface Mine Foreman JOHNNY MILLER SC1197 95 1995 Surface Construction Supervisor JOSEPH A. MILLER SC263 82 1982 Surface Construction Supervisor LEWIS J. MILLER S 1530 81 1981 Surface Mine Foreman MARK E. MILLER S 918 79 1979 Surface Mine Foreman MARSHALL A. MILLER SC1187 94 1994 Surface Construction Supervisor MICAH A. MILLER SS 118 19 2019 Shaft and Slope Superintendent MICAH A. MILLER SC 2964 13 2013 Surface Construction Supervisor MICHAEL S. MILLER S 1256 80 1980 Surface Mine Foreman PAUL D. MILLER SC489 83 1983 Surface Construction Supervisor PAUL E. MILLER S 1762 83 1983 Surface Mine Foreman PHILLIP G. MILLER S 2548 90 1990 Surface Mine Foreman RALPH B. MILLER S 1244 80 1980 Surface Mine Foreman RANDY K. MILLER SC1793 97 1997 Surface Construction Supervisor ROBERT B. MILLER S 1066 A 2006 Asst. Surface Mine Foreman ROBERT J. MILLER S 3563 01 2001 Surface Mine Foreman ROBERT L. MILLER S 1085 79 1979 Surface Mine Foreman ROBERT L. MILLER SC 1212 95 1995 Surface Construction Supervisor ROBERT BRIAN MILLER S 4279 07 2007 Surface Mine Foreman RONALD R. MILLER SC920 90 0 Surface Construction Supervisor ROY S. MILLER SC091 82 1982 Surface Construction Supervisor STEVEN D. MILLER SC 2363 05 2005 Surface Construction Supervisor TONY D. MILLER SC1324 95 1995 Surface Construction Supervisor TONY R. MILLER SC 2142 01 2001 Surface Construction Supervisor WAYNE L. MILLER S 1006 79 1979 Surface Mine Foreman WILLIAM P. MILLER S 3425 00 2000 Surface Mine Foreman CHARLES P. MILLER JR S 5004 11 2011 Surface Mine Foreman FRANCIS L. MILLER JR. S 850 79 1979 Surface Mine Foreman STEPHEN D. MILLER JR. SC 2306 05 2005 Surface Construction Supervisor JOHN J. MILLER, JR SC 542 83 1983 Surface Construction Supervisor LEE R. MILLER, JR. S 4553 08 2008 Surface Mine Foreman CARL L. MILLS S 1833 86 1986 Surface Mine Foreman DAVID R. MILLS SC 2154 02 2002 Surface Construction Supervisor HOBERT R. MILLS S3221 97 1997 Surface Mine Foreman HOMER MILLS SS 5673 1973 Shaft & Slope Examiner Foreman LLOYD D. MILLS S 271 79 1979 Surface Mine Foreman LONNIE L. MILLS S 2847 92 1992 Surface Mine Foreman VIRGIL T. MILLS S 5464 18 2018 Surface Mine Foreman DANNY A. MILLS II S 5212 14 2014 Surface Mine Foreman EARL MILLS, JR. SC808 85 1985 Surface Construction Supervisor DONALD J. MINEAR SC1541 96 1996 Surface Construction Supervisor WILLIAM R. MINERD SC 2854 12 2012 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ALBERT F. MINK S 2719 91 1991 Surface Mine Foreman JAMES S. MINK S 29 78 1978 Surface Mine Foreman JOHN W. MINK SC 2058 00 2000 Surface Construction Supervisor RODNEY MINNEY S 4044 06 2006 Surface Mine Foreman KEITH L. MINNIX SC1230 95 1995 Surface Construction Supervisor KENNETH E. MINNIX SC1231 95 1995 Surface Construction Supervisor JAMES S. MINOR S 665 79 1979 Surface Mine Foreman EMERY F. MINTON S 2855 92 1992 Surface Mine Foreman HOBERT MINTON SC 2589 08 2008 Surface Construction Supervisor HOWARD E. MINTON SC976 92 1992 Surface Construction Supervisor EARL R. MIRACLE S 3407 00 2000 Surface Mine Foreman H MIRACLE 137680 1980 Surface Mine Foreman CHESTER L. MITCHELL S 3675 03 2003 Surface Mine Foreman CHRISTOPHER B. MITCHELL S 4102 06 2006 Surface Mine Foreman COLUMBUS O. MITCHELL SC1779 97 1997 Surface Construction Supervisor HARLIS R. MITCHELL S 3910 84 1984 Surface Mine Foreman HARLIS R. MITCHELL SC 2005 99 1999 Surface Construction Supervisor JAMES T. MITCHELL S 2911 93 1993 Surface Mine Foreman JIMMY H. MITCHELL SC479 83 1983 Surface Construction Supervisor LANNY D. MITCHELL S 3770 04 2004 Surface Mine Foreman MATTHEW T. MITCHELL SC 2355 05 2005 Surface Construction Supervisor DANIEL A. MITCHEM S 5001 11 2011 Surface Mine Foreman DONALD R. MITCHEM SC1675 96 1996 Surface Construction Supervisor JAMES W. MITCHEM 6278 1978 Surface Mine Foreman MARK E. MITCHEM S 4331 07 2007 Surface Mine Foreman HUGH J. MOATS SC 2097 01 2001 Surface Construction Supervisor NEVILLE S. MOBERLEY, JR. SC1455 95 1995 Surface Construction Supervisor MICHAEL MOE SC 2191 02 2002 Surface Construction Supervisor CRAIG B. MOFFITT S 4394 08 2008 Surface Mine Foreman ERIC M. MOGYOROS SC 2177 02 2002 Surface Construction Supervisor PHILLIP G. MOLES SC598 83 1983 Surface Construction Supervisor KENNITH R. MOLLETT S 4745 10 2010 Surface Mine Foreman BRIAN D. MOLLETTE S 5466 18 2018 Surface Mine Foreman CHARLES L. MOLLETTE S 5599 19 2019 Surface Mine Foreman ROY G. MOLLETTE S2720 91 1991 Surface Mine Foreman JOHN D. MOLLOHAN S 3263 98 1998 Surface Mine Foreman TERRY R. MOLLOHAN, JR. S 3420 00 2000 Surface Mine Foreman ERAN T. MOLZ SC 2061 00 2000 Surface Construction Supervisor DARRELL V. MONK S 4728 10 2010 Surface Mine Foreman JAMES EDWARD MONOHAN S2145 86 1986 Surface Mine Foreman DONALD J. MONOSKEY S2746 92 1992 Surface Mine Foreman STEVEN A. MONOSKEY S2745 92 1992 Surface Mine Foreman JAMES MONTGOMERY SC1013 92 1992 Surface Construction Supervisor JIMMY W. MONTGOMERY S 5519 18 2018 Surface Mine Foreman FRED W. MOODY 97379 1979 Surface Mine Foreman PHILLIP E. MOODY SC 2748 10 2010 Surface Construction Supervisor RICHARD L. MOODY S 4073 06 2006 Surface Mine Foreman CHARLES D. MOODY II S 4070 06 2006 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE LARRY D. MOON 89279 1979 Surface Mine Foreman CHARLES B. MOONEY S 4945 11 2011 Surface Mine Foreman JAMES S. MOONEY S2585 90 1990 Surface Mine Foreman ROBERT P. MOONEY SC 2403 05 2005 Surface Construction Supervisor TILLMAN T. MOONEY 164282 1982 Surface Mine Foreman JAMES S. MOONEY, JR. S2022 85 1985 Surface Mine Foreman ADAM R. MOORE SC 2959 13 2013 Surface Construction Supervisor ALBERT G. MOORE SC856 86 1986 Surface Construction Supervisor BARRY L. MOORE SC 2806 11 2011 Surface Construction Supervisor BENJAMIN MOORE S 1158 A 2010 Asst. Surface Mine Foreman BENJAMIN L. MOORE S 4983 11 2011 Surface Mine Foreman BRIAN D. MOORE S 3789 04 2004 Surface Mine Foreman BRYAN MOORE S 4536 08 2008 Surface Mine Foreman CHARLES A. MOORE SC 2331 05 2005 Surface Construction Supervisor CHARLES H. MOORE S2369 88 1988 Surface Mine Foreman CRAIG A. MOORE SC 2741 10 2010 Surface Construction Supervisor DOUGLAS M. MOORE SC186 82 1982 Surface Construction Supervisor E.T. MOORE SC018 82 1982 Surface Construction Supervisor EDWARD A. MOORE S 2867 92 1992 Surface Mine Foreman FREDDIE MOORE S 4700 09 2009 Surface Mine Foreman GARY L. MOORE S 4960 11 2011 Surface Mine Foreman GARY L. MOORE SC1243 95 1995 Surface Construction Supervisor GREGORY C. MOORE SM2059 85 1985 Surface Mine Foreman JACKIE P. MOORE S 3165 96 1996 Surface Mine Foreman JAMES A. MOORE 138080 1980 Surface Mine Foreman JAMES E. MOORE S 4643 09 2009 Surface Mine Foreman JARED F. MOORE S 5578 19 2019 Surface Mine Foreman JASON J. MOORE S 3757 04 2004 Surface Mine Foreman JAY MOORE SC1678 96 1996 Surface Construction Supervisor JEFFREY MOORE SC1613 96 1996 Surface Construction Supervisor JOEY L. MOORE S 4891 11 2011 Surface Mine Foreman JON M. MOORE SC1785 97 1997 Surface Construction Supervisor KENNETH W. MOORE SC 2231 03 2003 Surface Construction Supervisor LARRY G. MOORE S 5366 16 2016 Surface Mine Foreman PAUL R. MOORE SC 2519 06 2006 Surface Construction Supervisor PERRY R. MOORE SS 24786 1986 Shaft & Slope Examiner Foreman RANDY E. MOORE S 5117 12 2012 Surface Mine Foreman RICHARD A. MOORE SS 18 04 2004 Shaft and Slope Superintendent ROBERT H. MOORE 196084 1984 Surface Mine Foreman RUFUS S. MOORE S 3504 01 2001 Surface Mine Foreman THEODORE EUGENE MOORE 29079 1979 Surface Mine Foreman TOMMY L. MOORE S 4208 06 2006 Surface Mine Foreman WILLIAM H. MOORE S2100 86 1986 Surface Mine Foreman DALE W. MOORE, JR. S 3918 05 2005 Surface Mine Foreman SCOTTY MOORE, JR. S 4895 11 2011 Surface Mine Foreman JOSE E. MORALES SC 3164 20 2020 Surface Construction Supervisor JUAN MORALES SC 2555 07 2007 Surface Construction Supervisor HARRY H. MORAN 36579 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JAMES E. MORAN SC 2785 11 2011 Surface Construction Supervisor JOSE MORAN SC1120 94 1994 Surface Construction Supervisor PETER K. MORAN 60979 1979 Surface Mine Foreman ROGER L. MORAN 143581 1981 Surface Mine Foreman BENNY L. MORELAND 120679 1979 Surface Mine Foreman EDWARD EUGENE MORELAND 195584 1984 Surface Mine Foreman FRANK ELWOOD JR MORELAND 194884 1984 Surface Mine Foreman JAMES E. MORELAND S 3301 98 1998 Surface Mine Foreman RICHARD T. MORELAND 85779 1979 Surface Mine Foreman GILBERT MORENO SC 3116 19 2019 Surface Construction Supervisor BENJAMIN S. MORGAN S 5106 12 2012 Surface Mine Foreman DANIEL D. MORGAN S 3568 02 2002 Surface Mine Foreman EARL MORGAN 153781 1981 Surface Mine Foreman JAMES R. MORGAN SC1292 95 1995 Surface Construction Supervisor PAUL D. MORGAN SC426 83 1983 Surface Construction Supervisor RONALD L. MORGAN S2121 86 1986 Surface Mine Foreman RONALD O. MORGAN SC1293 95 1995 Surface Construction Supervisor STEPHEN B. MORGAN 109379 1979 Surface Mine Foreman THOMAS N. MORGAN S 5281 15 2015 Surface Mine Foreman VERNON B. MORGAN SC802 85 1985 Surface Construction Supervisor WILLIE MORGAN SC336 83 1983 Surface Construction Supervisor LESLIE D. MORLEY S 4140 06 2006 Surface Mine Foreman DANNY C. MORRIS S2783 92 1992 Surface Mine Foreman DAVID S. MORRIS S2452 89 1989 Surface Mine Foreman DOUGLAS A. MORRIS S 5318 15 2015 Surface Mine Foreman DOUGLAS B. MORRIS 197884 1984 Surface Mine Foreman EDWARD S. MORRIS S 4314 07 2007 Surface Mine Foreman EDWARD S. MORRIS S 1072 A 2006 Asst. Surface Mine Foreman EUGENE P. MORRIS 5478 1978 Surface Mine Foreman FRANKLIN A. MORRIS S 4076 06 2006 Surface Mine Foreman HAROLD D. MORRIS SS 11377 1977 Shaft & Slope Examiner Foreman JAMES S. MORRIS SM 1980 84 1984 Surface Mine Foreman JOSEPH F. MORRIS S 3551 01 2001 Surface Mine Foreman MICHAEL P. MORRIS S 4756 10 2010 Surface Mine Foreman ROBERT A. MORRIS S 3287 98 1998 Surface Mine Foreman ROBERT A. MORRIS SC1626 96 1996 Surface Construction Supervisor ROBERT W. MORRIS SC145 82 1982 Surface Construction Supervisor STEPHEN W. MORRIS SC288 83 1983 Surface Construction Supervisor THOMAS T. MORRIS S2748 92 1992 Surface Mine Foreman DONALD MORRISON SC 2215 03 2003 Surface Construction Supervisor DONALD L. MORRISON SS 21182 1982 Shaft & Slope Examiner Foreman FRED F. MORRISON SC767 84 1984 Surface Construction Supervisor GARY MORRISON S 4136 06 2006 Surface Mine Foreman GARY L. MORRISON S 3649 03 2003 Surface Mine Foreman JAMES B. MORRISON 59779 1979 Surface Mine Foreman JEFFREY A. MORRISON SC 1942 98 1998 Surface Construction Supervisor MYRON A. MORRISTON S2734 31 1991 Asst. Surface Mine Foreman JOSEPH C. MORTON SS 8176 1976 Shaft & Slope Examiner Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE QUIN MORTON 87879 1979 Surface Mine Foreman RICHARD A. MORTON S 3803 04 2004 Surface Mine Foreman RICKY J. MORTON S 4396 08 2008 Surface Mine Foreman JEFFREY A. MOSES SC 2075 01 2001 Surface Construction Supervisor LEDURIS A. MOSES 51379 1979 Surface Mine Foreman JERRY R. MOSLEY S2255 88 1988 Surface Mine Foreman EDWARD ANDREW MOSS S2125 86 1986 Surface Mine Foreman MARK A. MOSS SC 1514 96 1996 Surface Construction Supervisor RONALD L. MOSS S2350 88 1988 Surface Mine Foreman MORGAN H. MOSSER SC 1926 98 1998 Surface Construction Supervisor MICHAEL MOSTELLER S 4917 11 2011 Surface Mine Foreman DANIEL L. MOUL S 3471 01 2001 Surface Mine Foreman BILLY MOUNTS S 4358 07 2007 Surface Mine Foreman DWAYNE S. MOUNTS S 5276 15 2015 Surface Mine Foreman ENOCH M. MOUNTS S2032 85 1985 Surface Mine Foreman KELLY MOUNTS S 4280 07 2007 Surface Mine Foreman LEONARD B. MOUNTS S 4274 07 2007 Surface Mine Foreman LEONARD B. MOUNTS S 1069 A 2006 Asst. Surface Mine Foreman MATTHEW MOUNTS S 4547 08 2008 Surface Mine Foreman CHARLES C. MOWERY S 3107 95 1995 Surface Mine Foreman HOWARD E. MOYERS SC 2105 01 2001 Surface Construction Supervisor RICHARD B. MOYERS S 2069 85 1985 Surface Mine Foreman BAYARD M. MUDOCH 198184 1984 Surface Mine Foreman DAVID F. MULKEY 145081 1981 Surface Mine Foreman BRIAN M. MULLEN SC 3061 17 2017 Surface Construction Supervisor ROGER J. MULLENAX SC161 82 1982 Surface Construction Supervisor BARRY L. MULLENS S 3612 02 2002 Surface Mine Foreman BARRY L. MULLENS SC823 86 1986 Surface Construction Supervisor BENJAMIN L. MULLENS S 3423 00 2000 Surface Mine Foreman CHARLES A. MULLENS 2155 1987 Surface Mine Foreman CHARLES A. MULLENS SC657 83 1983 Surface Construction Supervisor DAVID J. MULLENS S 3031 94 1994 Surface Mine Foreman EDWARD E. MULLENS SC496 83 1983 Surface Construction Supervisor GARLAND T. MULLENS SC 549 83 1983 Surface Construction Supervisor JAMES E. MULLENS SC821 86 1986 Surface Construction Supervisor MARK R. MULLENS S2644 91 1991 Surface Mine Foreman MICHAEL L. MULLENS 1840 1984 Surface Mine Foreman PAUL E. MULLENS 93079 1979 Surface Mine Foreman BILLY C. MULLINS S2310 88 1988 Surface Mine Foreman BILLY R. MULLINS S2232 87 1987 Surface Mine Foreman CHARLES H. MULLINS SC 2337 05 2005 Surface Construction Supervisor CHRISTOPHER E. MULLINS S 3700 03 2003 Surface Mine Foreman CODY A. MULLINS S 4684 09 2009 Surface Mine Foreman CODY A. MULLINS S 1103 A 2008 Asst. Surface Mine Foreman DENNIS MULLINS S 2925 93 1993 Surface Mine Foreman EVERETT L. MULLINS S2637 91 1991 Surface Mine Foreman FRANKLIN E. MULLINS 129580 1980 Surface Mine Foreman GLEN MULLINS S2605 91 1991 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE HARLAN B. MULLINS S 5034 12 2012 Surface Mine Foreman HAROLD J. MULLINS S2290 88 1988 Surface Mine Foreman HAROLD J. MULLINS S2233 87 1987 Surface Mine Foreman HOWARD C. MULLINS S 3083 95 1995 Surface Mine Foreman JAMES M MULLINS SM 522 79 1979 Surface Mine Foreman JEFFREY S. MULLINS SC 2205 03 2003 Surface Construction Supervisor JEREMY B. MULLINS SC 2767 11 2011 Surface Construction Supervisor JOHN H. MULLINS SC 2661 09 2009 Surface Construction Supervisor JOHN T. MULLINS S3238 97 1997 Surface Mine Foreman JOHNNY MULLINS S2211 87 1987 Surface Mine Foreman JOHNNY E. MULLINS S 4689 09 2009 Surface Mine Foreman JOSEPH C. MULLINS SC1104 94 1994 Surface Construction Supervisor JOSEPH S. MULLINS S 3968 05 2005 Surface Mine Foreman LEWIS S. MULLINS S 3406 00 2000 Surface Mine Foreman MICHAEL A. MULLINS S 3419 00 2000 Surface Mine Foreman MICHAEL W. MULLINS S 5108 12 2012 Surface Mine Foreman RANDY A. MULLINS S2776 92 1992 Surface Mine Foreman RAY D. MULLINS S 3609 02 2002 Surface Mine Foreman ROBERT L. MULLINS S 5369 16 2016 Surface Mine Foreman RONALD MULLINS S 4092 06 2006 Surface Mine Foreman STEVIE J. MULLINS S2312 88 1988 Surface Mine Foreman TEDDY G. MULLINS S 4722 09 2009 Surface Mine Foreman THOMAS C. MULLINS SC 2437 06 2006 Surface Construction Supervisor WALTER C. MULLINS 162182 1982 Surface Mine Foreman WILLIAM M. MULLINS SC1526 96 1996 Surface Construction Supervisor WINFORD C. MULLINS SS 5373 1973 Shaft & Slope Examiner Foreman ZACHARY J. MULLINS S 3463 01 2001 Surface Mine Foreman JOHNNY A. MULLINS, JR. S 3724 03 2003 Surface Mine Foreman JULIAM MULLINS, JR. S2289 88 1988 Surface Mine Foreman KENNETH P. MULLOOLY SC 2183 02 2002 Surface Construction Supervisor WILLIAM J. MUMAW CM3316545 1981 Clay Mine Foreman GABE MUNCY S2650 91 1991 Surface Mine Foreman LARK MUNCY S 4124 06 2006 Surface Mine Foreman MICHAEL D. MUNCY 128980 1980 Surface Mine Foreman THOMAS J. MUNCY S 4388 07 2007 Surface Mine Foreman MARK MUNGER S 4183 06 2006 Surface Mine Foreman JUAN F. MUNOZ SC 2995 14 2014 Surface Construction Supervisor JOSEPH E. MURDOCK S 4617 09 2009 Surface Mine Foreman JOSEPH E. MURDOCK S 1111 A 2008 Asst. Surface Mine Foreman STEVEN B. MURDOCK S 3734 03 2003 Surface Mine Foreman STEVEN B. MURDOCK S 1016 A 2002 Asst. Surface Mine Foreman CHARLES H. MURPHY SC927 91 0 Surface Construction Supervisor DONALD J. MURPHY 98979 1979 Surface Mine Foreman JOHN M. MURPHY SC 2280 04 2004 Surface Construction Supervisor MARSHALL A. MURPHY S 4785 10 2010 Surface Mine Foreman MICHAEL MURPHY 878 1978 Surface Mine Foreman MICHAEL H. MURPHY S 3599 02 2002 Surface Mine Foreman OKIE MURPHY S 1468 81 1981 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ORA MURPHY SC1372 95 1995 Surface Construction Supervisor RAY H. MURPHY S 693 79 1979 Surface Mine Foreman ROBERT DEAN MURPHY S 3026 94 1994 Surface Mine Foreman WILLIAM D. MURPHY S 3871 05 2005 Surface Mine Foreman WILLIAM H. MURPHY S2607 91 1991 Surface Mine Foreman WILLIAM K. MURPHY S 3814 04 2004 Surface Mine Foreman WILLIAM L. MURPHY S 3859 04 2004 Surface Mine Foreman ZACKARY W. MURPHY S 4855 10 2010 Surface Mine Foreman JAMES C. MURPHY, JR. SC721 84 1984 Surface Construction Supervisor SAMUEL C. MURRAL S 4805 10 2010 Surface Mine Foreman DANIEL J. MURRAY S 633 79 1979 Surface Mine Foreman JOHN ROBERT MURRAY S 292 79 1979 Surface Mine Foreman KENNETH J. MURRAY SS 147 78 1978 Shaft & Slope Examiner Foreman EARL M. MUSIC S 3455 01 2001 Surface Mine Foreman HERBERT R. MUSIC S 4029 06 2006 Surface Mine Foreman JAMES L. MUSIC SC1004 92 1992 Surface Construction Supervisor JASON L. MUSIC SC 2393 05 2005 Surface Construction Supervisor JERRY K. MUSTOE S 2095 86 1986 Surface Mine Foreman WILLIAM J. MUSTOE S 1271 81 1981 Surface Mine Foreman BEN L. MYERS S 925 79 1979 Surface Mine Foreman BLAINE K. MYERS S 2399 89 1989 Surface Mine Foreman CHARLES W. MYERS S 1649 82 1982 Surface Mine Foreman CURT L. MYERS S 2013 85 1985 Surface Mine Foreman JAYSON P. MYERS SC 2606 08 2008 Surface Construction Supervisor ORVILLE M. MYERS S 2028 85 1985 Surface Mine Foreman RAY L. MYERS S 1531 81 1981 Surface Mine Foreman RONALD MYERS S 4398 08 2008 Surface Mine Foreman STANLLEY R. MYERS S 1037 79 1979 Surface Mine Foreman TIMOTHY J. MYERS SC1377 95 1995 Surface Construction Supervisor WILLIAM A. MYERS S 963 79 1979 Surface Mine Foreman WILLIAM LEE MYERS S 596 79 1979 Surface Mine Foreman BURLEY K. MYERS, JR. SS 265 91 1991 Shaft & Slope Examiner Foreman DONALD G. MYERS, JR. SC1703 97 1997 Surface Construction Supervisor JOHN H. MYLES S 4387 07 2007 Surface Mine Foreman JOHN H. MYLES S 1087 A 2007 Asst. Surface Mine Foreman JIMMY L. NAGY S 3513 01 2001 Surface Mine Foreman JOHN W. NAKORANEC SC160 82 1982 Surface Construction Supervisor CHARLES E. NAPIER S 3683 03 2003 Surface Mine Foreman CLARENCE G. NAPIER S 5481 18 2018 Surface Mine Foreman LEWIS E. NAPIER S 3744 03 2003 Surface Mine Foreman LEWIS E. NAPIER S 1009 A 2001 Asst. Surface Mine Foreman MILTON C. NAPIER S 3308 98 1998 Surface Mine Foreman JOHN NASTOLD SC 2029 99 1999 Surface Construction Supervisor HANS E. NAUMANN SC369 83 1983 Surface Construction Supervisor CHARLES J. NAY S 710 79 1979 Surface Mine Foreman MARVIN R. NAY S 708 79 1979 Surface Mine Foreman JOHN C. NCNEW, JR. S 2487 90 1990 Surface Mine Foreman EVERETT L. NEACE S 4097 06 2006 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE THOMAS A. NEACE, JR. S 4780 10 2010 Surface Mine Foreman CARLETON P. NEAL S 505 79 1979 Surface Mine Foreman DARRELL D. NEAL S 4695 09 2009 Surface Mine Foreman DARRELL L. NEAL SC 2575 08 2008 Surface Construction Supervisor DAVID M. NEAL SC 2003 99 1999 Surface Construction Supervisor MICHAEL E. NEAL S 2000 85 1985 Surface Mine Foreman RICHIE W. NEAL S 5338 15 2015 Surface Mine Foreman EUGENE R. NEAL S 1351 80 1980 Surface Mine Foreman STEPHEN NEAL S 4230 06 2006 Surface Mine Foreman THOMAS K. NEAL S 4254 07 2007 Surface Mine Foreman WALTER B. NEAL S 2967 94 1994 Surface Mine Foreman WESLEY A. NEAL S 4979 11 2011 Surface Mine Foreman JACK A. NEAL, JR. S 1587 82 1982 Surface Mine Foreman CARROLL J. NECAISE SS 9276 1976 Shaft & Slope Examiner Foreman TERENCE K. NECESSARY SC 2434 06 2006 Surface Construction Supervisor JODY L. NEEL SC 2933 13 2013 Surface Construction Supervisor ROBERT M. NEESER S 4196 06 2006 Surface Mine Foreman BERNARD A. NEFF 36771 96 1996 Surface Mine Foreman DANNY D. NEFF S 3289 98 1998 Surface Mine Foreman JAMES R. NEFF S 3126 95 1995 Surface Mine Foreman JAMES R. NEFF S 3126 95 1995 Shaft & Slope Examiner Foreman TROY NEFF S 1963 84 1984 Surface Mine Foreman CARLOS M. NEIL S 3461 01 2001 Surface Mine Foreman ROBERT V. NEIL S 4759 10 2010 Surface Mine Foreman ADAM B. NELSON S 5570 19 2019 Surface Mine Foreman AZLE ORTAN NELSON S 40 78 1978 Surface Mine Foreman BILLY B. NELSON S 5548 18 2018 Surface Mine Foreman DONALD W. NELSON S 1024 79 1979 Surface Mine Foreman DONALD W. NELSON SC229 82 1982 Surface Construction Supervisor DUSTY J. NELSON S 1275 80 1980 Surface Mine Foreman ESTON S. NELSON S 1902 84 1984 Surface Mine Foreman GEORGE R. NELSON S2171 87 1987 Surface Mine Foreman JAMES C. NELSON S 855 79 1979 Surface Mine Foreman JEFFREY W. NELSON S 2560 90 1990 Surface Mine Foreman JOHNNY R. NELSON SC724 84 1984 Surface Construction Supervisor KENNETH R. NELSON S 3331 99 1999 Surface Mine Foreman MICHAEL C. NELSON S 3723 03 2003 Surface Mine Foreman ROCKY D. NELSON S 1276 80 1980 Surface Mine Foreman TERRANCE K. NELSON SC 2318 05 2005 Surface Construction Supervisor ALFRED NELSON, JR. S 1746 83 1983 Surface Mine Foreman WELDON M. NESMITH S 1668 82 1982 Surface Mine Foreman WELDON M. NESMITH SC761 84 1984 Surface Construction Supervisor ROSCOE W. NESTOR S 1009 79 1979 Surface Mine Foreman EDWARD FRANK F. NETT, JR. S2804 92 1992 Surface Mine Foreman RODNEY M. NEVILLE S 2359 88 1988 Surface Mine Foreman WILLIAM J. NEVILLE SC 1407 95 1995 Surface Construction Supervisor CHARLES W. NEVINS SC686 83 1983 Surface Construction Supervisor VERL NEWBERN SC361 83 1983 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE THOMAS R. NEWBRAUGH SC 2356 05 2005 Surface Construction Supervisor CHRISTOPHER M. NEWMAN S 4963 11 2011 Surface Mine Foreman HUGHIE V. NEWMAN SS 32 05 2005 Shaft and Slope Superintendent ZANE L. NEWMAN SC1048 92 0 Surface Construction Supervisor CHAD E. NEWSOME S 5189 13 2013 Surface Mine Foreman H. GENE NEWSOME SC1618 96 1996 Surface Construction Supervisor RICHARD D. NEWSOME S 3288 98 1998 Surface Mine Foreman ROBERT T. NEWSOME S 3217 97 1997 Surface Mine Foreman SCOTTY L. NEWSOME S 4774 10 2010 Surface Mine Foreman TOMMY R. NEWSOME S 4267 07 2007 Surface Mine Foreman WILLIE G. NEWSOME S 1414 81 1981 Surface Mine Foreman KENNETH NEWSUM SC 2171 02 2002 Surface Construction Supervisor ROLAND A. NEWTON S 1022 79 1979 Surface Mine Foreman TERRY L. NEWTON S 2569 90 1990 Surface Mine Foreman JOHN KEVIN NICEWONDER S 2403 89 1989 Surface Mine Foreman KENNETH R. NICEWONDER S 2271 88 1988 Surface Mine Foreman JOHN NICHOL S 4793 10 2010 Surface Mine Foreman CARL M. NICHOLAS S 673 79 1979 Surface Mine Foreman LEONARD W. NICHOLAS S 5096 12 2012 Surface Mine Foreman BOBBY C. NICHOLS S 2472 90 1990 Surface Mine Foreman CORY NICHOLS S 5049 12 2012 Surface Mine Foreman DAVID A. NICHOLS S 1580 82 1982 Surface Mine Foreman DAVID G. NICHOLS S 4984 11 2011 Surface Mine Foreman GORDON D. NICHOLS S 4540 08 2008 Surface Mine Foreman JAMES W. NICHOLS S 5224 14 2014 Surface Mine Foreman JIMMY E. NICHOLS S 326 79 1979 Surface Mine Foreman PATRICK NICHOLS S 490 79 1979 Surface Mine Foreman ROBERT C. NICHOLS SC1023 92 1992 Surface Construction Supervisor WILLIAM B. NICHOLS S 3405 00 2000 Surface Mine Foreman WILLIAM E. NICHOLS SM 1745 83 1983 Surface Mine Foreman WILLIAM R. NICHOLS S 1445 81 1981 Surface Mine Foreman LARRY C. NICHOLS, SR. SC 2490 06 2006 Surface Construction Supervisor DALLAS W. NICHOLSON SC 2496 06 2006 Surface Construction Supervisor JAMES F. NICHOLSON S 905 79 1979 Surface Mine Foreman NICK NICKOLAS S 1204 79 1979 Surface Mine Foreman VINCENT E. NICOLAU SC1223 95 1995 Surface Construction Supervisor FRED D. NINE S 1068 79 1979 Surface Mine Foreman ELI W. NIXON SC 298 83 1983 Surface Construction Supervisor RAY N. NIXON SC799 85 1985 Surface Construction Supervisor KIMMIE C. NOAH S 3023 94 1994 Surface Mine Foreman KIMMIE C. NOAH SC1441 95 1995 Surface Construction Supervisor BUFFORD NOBLE S 2716 91 1991 Surface Mine Foreman george j. noble, jr. S 1728 83 1983 Surface Mine Foreman DANNY R. NOE S 4453 08 2008 Surface Mine Foreman DENNIS R. NOE S 1637 82 1982 Surface Mine Foreman LARRY L. NOE S 2366 88 1988 Surface Mine Foreman THOMAS M. NOE S 3315 98 1998 Surface Mine Foreman BENJAMIN H. NOEL S 971 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE A W. NOKORANCE S 882 79 1979 Surface Mine Foreman CHARLES G. NOLAN S 3847 04 2004 Surface Mine Foreman CHARLES G. NOLAN S 1048 A 2004 Asst. Surface Mine Foreman MARVIN L. NOLEN S 4590 09 2009 Surface Mine Foreman CARL NORMAN S 4747 10 2010 Surface Mine Foreman DONALD NORRIS SC1606 96 1996 Surface Construction Supervisor LARRY NORRIS SC 2102 01 2001 Surface Construction Supervisor MICHAEL G. NORTH SC 2175 02 2002 Surface Construction Supervisor MELVIN E. NORVELL SC607 83 1983 Surface Construction Supervisor JIMMY D. NOTTINGHAM S 2672 91 1991 Surface Mine Foreman JUSTIN C. NOTTINGHAM S 5272 14 2014 Surface Mine Foreman RALPH B. NOTTINGHAM S 3976 05 2005 Surface Mine Foreman WENSTON G. NOTTINGHAM S 3974 05 2005 Surface Mine Foreman NAZARENO J. NOVI SC261 82 1982 Surface Construction Supervisor JEFFREY S. NOWARK SC 2353 05 2005 Surface Construction Supervisor DAVID PAUL NUCE S 620 79 1979 Surface Mine Foreman JAMES R. NUCKELS S 2128 86 1986 Surface Mine Foreman JOSEPH NUCKOLS SC 2484 06 2006 Surface Construction Supervisor RICHARD L. NUGEN SC1098 94 1994 Surface Construction Supervisor ELLIS J. NUNLEY SC1314 95 1995 Surface Construction Supervisor RAYMOND J. NUNLEY SC 1315 95 1995 Surface Construction Supervisor JON D. NUSBAUM SC 3139 19 2019 Surface Construction Supervisor CHARLES S. NUTTER S 5217 14 2014 Surface Mine Foreman EDDIE NUTTER S 3975 05 2005 Surface Mine Foreman JACKIE BOGGS NUTTER S 232 78 1978 Surface Mine Foreman ROLLIN A. NUTTER S 355 79 1979 Surface Mine Foreman TERRANCE NUTTER SC 2006 99 1999 Surface Construction Supervisor CURTIS B. NUZUM SC 2875 12 2012 Surface Construction Supervisor JOHN NUZUM SC1413 95 1995 Surface Construction Supervisor MICHAEL E. NYMICK SC 3115 19 2019 Surface Construction Supervisor RONALD L. O'BRIAN S 1434 81 1981 Surface Mine Foreman THOMAS O'BRIEN SS 68 75 1975 Shaft & Slope Examiner Foreman TODD O'BRIEN S 4679 09 2009 Surface Mine Foreman CARL A. O'BRYAN SC 1946 98 1998 Surface Construction Supervisor LARRY G. O'BRYAN SC1578 96 1996 Surface Construction Supervisor RICK A. O'BRYAN S 2147 87 1987 Surface Mine Foreman GARY L. O'DELL SC1752 97 1997 Surface Construction Supervisor GREGORY J. O'DELL SC 962 91 1991 Surface Construction Supervisor JOHN A. O'DELL S 3780 04 2004 Surface Mine Foreman ROGER D. O'DELL S 322 79 1979 Surface Mine Foreman RONDALE W. O'DELL SC 155896 1996 Surface Construction Supervisor PATRICK O'DONNELL SS 13678 1978 Shaft & Slope Examiner Foreman WILLIAM E. O'HARA SC 150096 1996 Surface Construction Supervisor HERBERT S. O'NEAL SC 134995 1995 Surface Construction Supervisor LUCAS P. O'NEAL S 4766 10 2010 Surface Mine Foreman JACKIE D. O'QUINN S 2445 89 1989 Surface Mine Foreman JIMMY D. O'QUINN S 2524 90 1990 Surface Mine Foreman ROCKY W. O'QUINN S2412 89 1989 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ROCKY W. O'QUINN S 5406 17 2017 Surface Mine Foreman EDWARD L. OAKS SC 2299 05 2005 Surface Construction Supervisor ROGER L. OATES JR. S 1205 85 1985 Surface Mine Foreman JON P. OBERHAUSER SC1005 92 1992 Surface Construction Supervisor DARRELL R. OCHELTREE S 982 79 1979 Surface Mine Foreman MICHAEL K. ODLE SS 45 05 2005 Shaft and Slope Superintendent JOSEPH E. OESTER SC 155296 1996 Surface Construction Supervisor EARNEST A. OGLE SC 63783 1983 Surface Construction Supervisor THOMAS OGRYSKI SC 1938 98 1998 Surface Construction Supervisor THOMAS J. OLBERDING SC 2610 08 2008 Surface Construction Supervisor WILLIAM E. OLDANI S 2974 94 1994 Surface Mine Foreman LUIS A. OLIVARES SC 3057 17 2017 Surface Construction Supervisor TED OLIVER SC 2813 11 2011 Surface Construction Supervisor WAYNE OLIVER SC 111494 1994 Surface Construction Supervisor LLYOD L. OLLIS S 415 79 1979 Surface Mine Foreman ROGER J. OLSON S 2098 86 1986 Surface Mine Foreman BRIAN A. OOTEN S 5258 14 2014 Surface Mine Foreman NICHOLAS OOTEN III S 5250 14 2014 Surface Mine Foreman RHODES OOTEN III S 3179 96 1996 Surface Mine Foreman DANNY W. ORICK S 5390 17 2017 Surface Mine Foreman ROGER D. ORNDORFF JR SC 2886 12 2012 Surface Construction Supervisor RAYMOND ORTIZ SC 169897 1997 Surface Construction Supervisor GORDON FAIRFAX OSBORN S 1108 79 1979 Surface Mine Foreman ROBERT D. OSBORN S 179 78 1978 Surface Mine Foreman ARNOLD E. OSBORNE SC147 82 1982 Surface Construction Supervisor BOBBY OSBORNE S 170 78 1978 Surface Mine Foreman BRADLEY L. OSBORNE S 5597 19 2019 Surface Mine Foreman CHRIS OSBORNE S 4541 08 2008 Surface Mine Foreman EARL J. OSBORNE S 1335 80 1980 Surface Mine Foreman EARL J. OSBORNE SC 152596 1996 Surface Construction Supervisor MARK D. OSBORNE SC 2514 06 2006 Surface Construction Supervisor TEDDY R. OSBORNE S 3497 01 2001 Surface Mine Foreman TED D. OSBORNE JR. S 5029 12 2012 Surface Mine Foreman TED OSBORNE, JR. SC 2201 03 2003 Surface Construction Supervisor RAY R. OSBURN SC 138795 1995 Surface Construction Supervisor THOMAS A. OSEKOWSKI S 1796 83 1983 Surface Mine Foreman HALLIE OSLEY S 809 79 1979 Surface Mine Foreman JAMES A. OSTER S 2760 92 1992 Surface Mine Foreman CHARLES E. OVERBAUGH S 4239 06 2006 Surface Mine Foreman GARY E. OVERBAY S 2461 89 1989 Surface Mine Foreman JOSEPH R. OVERBAY, JR. SC 678 83 1983 Surface Construction Supervisor PETER J. OWEN S 153 78 1978 Surface Mine Foreman ROBERT F. OWEN SC 2889 12 2012 Surface Construction Supervisor BLAINE OWENS S 3603 02 2002 Surface Mine Foreman JESSE S. OWENS S 4821 10 2010 Surface Mine Foreman JOHNNY B. OWENS S 4021 05 2005 Surface Mine Foreman KEVIN OWENS S 4804 10 2010 Surface Mine Foreman KEVIN S. OWENS S 1024 A 2003 Asst. Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MICHAEL S. OWENS S 3346 99 1999 Surface Mine Foreman ROBERT H. OWENS SS 6274 1974 Shaft & Slope Examiner Foreman CECIL R. OWENS JR. S 5126 12 2012 Surface Mine Foreman CECIL R. OWENS, JR. SC 2206 03 2003 Surface Construction Supervisor GARY L. OWENS, JR. SS 44 05 2005 Shaft and Slope Superintendent LARRY D. OWENS, JR. S 4189 06 2006 Surface Mine Foreman JAMES E. OWREY S 2462 89 1989 Surface Mine Foreman CHARLES E. OWSLEY S 3483 01 2001 Surface Mine Foreman DENNIS E. OXFORD S 4085 06 2006 Surface Mine Foreman STEPHEN J. PACHOL SC924 90 0 Surface Construction Supervisor HERMAN A. PACK SC1112 94 1994 Surface Construction Supervisor MICHAEL A. PACK SM 1340 80 1980 Surface Mine Foreman NICK L. PACK S 3304 98 1998 Surface Mine Foreman PHILLIP D. PACK S3240 97 1997 Surface Mine Foreman RANDALL D. PACK SC 2038 00 2000 Surface Construction Supervisor TIM L. PACK S 4822 10 2010 Surface Mine Foreman VERNARD K. PACK SC1346 95 1995 Surface Construction Supervisor MIGUEL P. PADILLA SC 2938 13 2013 Surface Construction Supervisor MARVIN WAYNE PAGE S 630 79 1979 Surface Mine Foreman ELLSWORTS PAGE JR. S 1014 79 1979 Surface Mine Foreman ALVA PAGE, JR. SC785 85 1985 Surface Construction Supervisor DONALD Z. PAINTER SS 17479 1979 Shaft & Slope Examiner Foreman MICHAEL B. PAINTER SC 2608 08 2008 Surface Construction Supervisor JOSEPH D. PAISLEY S 869 79 1979 Surface Mine Foreman GREG PALMER SC 2021 99 1999 Surface Construction Supervisor HARRY A. PALMER S 2207 87 1987 Surface Mine Foreman JERRY W. PALMER SC 2301 05 2005 Surface Construction Supervisor ROBERT L. PALMER S3241 97 1997 Surface Mine Foreman ROY F. PALMER S3239 97 1997 Surface Mine Foreman WILLIAM E. PALMER S 2009 85 1985 Surface Mine Foreman JAMES D. PANETTA SC946 91 1991 Surface Construction Supervisor JEFF L. PANNELL S 2860 92 1992 Surface Mine Foreman JOHN A. PANSOCK SC1749 97 1997 Surface Construction Supervisor GEORGE A. PANSON S 1780 83 1983 Surface Mine Foreman MATT PARCELL S 4356 07 2007 Surface Mine Foreman LARRY E. PARENT SC133 82 1982 Surface Construction Supervisor GENE F. PARKER SS 23184 1984 Shaft & Slope Examiner Foreman PATRICK L. PARKER SC 2498 06 2006 Surface Construction Supervisor RAYMOND F. PARKER S 2330 88 1988 Surface Mine Foreman RICHARD C. PARKER S 1448 81 1981 Surface Mine Foreman SAMUEL W. PARKHILL SS 46 06 2006 Shaft and Slope Superintendent BRIAN S. PARKS S 5006 11 2011 Surface Mine Foreman CARL R. PARKS SC 3027 15 2015 Surface Construction Supervisor HERBERT E. PARKS SC1757 97 1997 Surface Construction Supervisor CARL E. PARLIER S 1672 82 1982 Surface Mine Foreman DAVID M. PARQUETTE SC457 83 1983 Surface Construction Supervisor KEVIN R. PARRISH SC 3145 20 2020 Surface Construction Supervisor KIRT A. PARRISH SC 2944 13 2013 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MART K. PARRISH SC 2169 02 2002 Surface Construction Supervisor ROBERT A. PARRISH, JR. S 4897 11 2011 Surface Mine Foreman ROBERT A. PARRISH, JR. S 1143 A 2010 Asst. Surface Mine Foreman CHARLES T. PARSLEY SS 13778 1978 Shaft & Slope Examiner Foreman JACK DAVID PARSLEY S 4107 06 2006 Surface Mine Foreman MICHAEL S. PARSLEY S 4077 06 2006 Surface Mine Foreman CLARENCE PARSONS S 563 79 1979 Surface Mine Foreman DEWAINE A. PARSONS S 3176 96 1996 Surface Mine Foreman HOWARD L. PARSONS S 389 79 1979 Surface Mine Foreman JAMES B. PARSONS S 2354 88 1988 Surface Mine Foreman JOHN A. PARSONS SC1339 95 1995 Surface Construction Supervisor KEITH E. PARSONS S 3367 00 2000 Surface Mine Foreman LEO PARSONS S 1423 81 1981 Surface Mine Foreman MICHAEL J. PARSONS SC 2423 06 2006 Surface Construction Supervisor MICHAEL L. PARSONS S 5138 13 2013 Surface Mine Foreman RANDALL PARSONS S3232 97 1997 Surface Mine Foreman THURMAN R. PARSONS SS 90 76 1976 Shaft & Slope Examiner Foreman ROGER L. PARSONS, JR S 5377 16 2016 Surface Mine Foreman CHARLES M. PASE S 2277 88 1988 Surface Mine Foreman CHARLES HOYT PASE S 173 78 1978 Surface Mine Foreman JACK O. PASEY S 197 78 1978 Surface Mine Foreman JOSEPH L. PASTUCH SC 2329 05 2005 Surface Construction Supervisor DUANE E. PATRICK S 4750 10 2010 Surface Mine Foreman JIMMY PATRICK S 5524 18 2018 Surface Mine Foreman BILLY B. PATTERSON SC 2751 10 2010 Surface Construction Supervisor CARL PATTERSON S 613 79 1979 Surface Mine Foreman CHRISTOPHER T. PATTERSON SC 2450 06 2006 Surface Construction Supervisor DAVID B. PATTERSON SC 2766 10 2010 Surface Construction Supervisor ELMER D. PATTERSON S 1245 80 1980 Surface Mine Foreman GARY A. PATTERSON S 2784 92 1992 Surface Mine Foreman RALPH E. PATTERSON SC943 91 1991 Surface Construction Supervisor WILLIAM L. PATTERSON S 1962 84 1984 Surface Mine Foreman BRIAN D. PATTON S 5435 17 2017 Surface Mine Foreman JOSEPH A. PATTON SC941 91 1991 Surface Construction Supervisor KEVIN D. PATTON SC 1945 98 1998 Surface Construction Supervisor LONZO PATTON S 976 79 1979 Surface Mine Foreman ROBERT L. PATTON SC930 91 0 Surface Construction Supervisor TONY PATTON S 5456 17 2017 Surface Mine Foreman BERT W. PATTON, SR. SC928 91 0 Surface Construction Supervisor CHARLES SIDNEY PAUGH S 1123 79 1979 Surface Mine Foreman CLYDE E. PAUGH S 1903 84 1984 Surface Mine Foreman LARRY ALLEN PAUGH S 1878 84 1984 Surface Mine Foreman WINTER C. PAUGH S 239 78 1978 Surface Mine Foreman DONALD PAUGH JR. S 4636 09 2009 Surface Mine Foreman CLYDE E. PAULEY S 4876 11 2011 Surface Mine Foreman DANNY E. PAULEY S 1190 79 1979 Surface Mine Foreman DILLARD C. PAULEY SC308 83 1983 Surface Construction Supervisor JOHN H. PAULEY S 2754 92 1992 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOHN H. PAULEY SC1193 94 1994 Surface Construction Supervisor MIKE E. PAULEY S 5372 16 2016 Surface Mine Foreman ROBERT E. PAULEY SC1738 97 1997 Surface Construction Supervisor WALTER R. PAULEY SC296 83 1983 Surface Construction Supervisor WILLIAM S. PAULEY S 1192 79 1979 Surface Mine Foreman ARL W. PAULEY III S 4250 06 2006 Surface Mine Foreman WILLIAM PAULL S 3897 05 2005 Surface Mine Foreman RONALD P. PAULSEN SC 2660 09 2009 Surface Construction Supervisor JOHN H. PAVKOVICH S 1228 79 1979 Surface Mine Foreman DAVID A. PAWELEZYK S 2122 86 1986 Surface Mine Foreman JEFFREY PAWLOSKY SS 393 19 2019 Shaft & Slope Examiner Foreman FRED R. PAYNE SC 1908 98 1998 Surface Construction Supervisor GLENN H. PAYNE SC 1931 98 1998 Surface Construction Supervisor GREGORY E. PAYNE S 3605 02 2002 Surface Mine Foreman JUSTIN D. PAYNE S 5636 20 2020 Surface Mine Foreman GEORGE M. PAYTON SC 2996 14 2014 Surface Construction Supervisor KENNETH K. PEACE S 2848 92 1992 Surface Mine Foreman GERALD PEACOCK S 4147 06 2006 Surface Mine Foreman FRANK R. PEARSON SC747 84 1984 Surface Construction Supervisor BRIAN L. PECK SC 2300 05 2005 Surface Construction Supervisor JAMES N. PECK SC1619 96 1996 Surface Construction Supervisor ROBERT H. PECK SC092 82 1982 Surface Construction Supervisor STERLING O. PEEK S 532 79 1979 Surface Mine Foreman JAMES H. PEGRAM S 3022 94 1994 Surface Mine Foreman KARL D. PEISKEE SC 3154 20 2020 Surface Construction Supervisor JOHN A. PELLEGRIN SC 1919 98 1998 Surface Construction Supervisor JOHN A. PELLEGRIN JR SC 2900 12 2012 Surface Construction Supervisor BOBBIE D. PELLEGRINI S 3186 96 1996 Surface Mine Foreman JACK PELPHREY S 594 79 1979 Surface Mine Foreman BOYD L. PENCE SC368 83 1983 Surface Construction Supervisor ZEB T. PENDERGRASS, JR. S 783 79 1979 Surface Mine Foreman ROBERT E. PENDRY S 3552 01 2001 Surface Mine Foreman ROBERT E. PENDRY SC676 83 1983 Surface Construction Supervisor BILLY L. PENNINGTON SC 1987 99 1999 Surface Construction Supervisor JACK R. PENNINGTON SC1640 96 1996 Surface Construction Supervisor JACK R. PENNINGTON SC 2089 01 2001 Surface Construction Supervisor JAMES L. PENNINGTON S 2901 93 1993 Surface Mine Foreman WALTER E. PENNINGTON S 1282 80 1980 Surface Mine Foreman HARRY B. PENNINGTON, JR. SC668 83 1983 Surface Construction Supervisor JAMES E. PENNYBACKER SC580 83 1983 Surface Construction Supervisor ELMER S. PERDUE S 5239 14 2014 Surface Mine Foreman JACKIE L. PERDUE SC 2127 01 2001 Surface Construction Supervisor KENNETH M PERDUE S 3277 98 1998 Surface Mine Foreman LEMON PERDUE S 480 79 1979 Surface Mine Foreman LEONARD J. PERDUE SC 2324 05 2005 Surface Construction Supervisor ANTHONY W. PERKINS S 5128 12 2012 Surface Mine Foreman GARY D. PERKINS SC 2699 09 2009 Surface Construction Supervisor GEORGE M. PERKINS SS 98 11 2011 Shaft and Slope Superintendent NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOSHUA PERKINS SS 124 19 2019 Shaft and Slope Superintendent LEONARD H. PERKINS S 319 79 1979 Surface Mine Foreman RODNEY K. PERKINS SC728 84 1984 Surface Construction Supervisor WILLIAM S. PERKINS S 1732 83 1983 Surface Mine Foreman EARL D. PERRINE S 940 79 1979 Surface Mine Foreman GARY H. PERRINE S 218 78 1978 Surface Mine Foreman LARRY B. PERRINE S 554 79 1979 Surface Mine Foreman BILLY R. PERRY S 2085 85 1985 Surface Mine Foreman BOYD J. PERRY S 141 78 1978 Surface Mine Foreman ELDRETH B. PERRY SC1414 95 1995 Surface Construction Supervisor FREDERICK A. PERRY S 2130 86 1986 Surface Mine Foreman GERALD S. PERRY S 4373 07 2007 Surface Mine Foreman GLEN W. PERRY S 1422 81 1981 Surface Mine Foreman GREG F. PERRY S 4290 07 2007 Surface Mine Foreman HAROLD D. PERRY S 1736 83 1983 Surface Mine Foreman HAROLD M. PERRY S 2260 88 1988 Surface Mine Foreman IRA H. PERRY S 2325 88 1988 Surface Mine Foreman JAMES E. PERRY S 3715 03 2003 Surface Mine Foreman JARREL A. PERRY S 1171 79 1979 Surface Mine Foreman MICHAEL D. PERRY S 5010 11 2011 Surface Mine Foreman RANDY L. PERRY S 5625 20 2020 Surface Mine Foreman THOMAS O. PERRY, JR. S 4278 07 2007 Surface Mine Foreman THOMAS O. PERRY, JR. S 1083 A 2007 Asst. Surface Mine Foreman ARLIE H. PERRYMAN SS 9176 1976 Shaft & Slope Examiner Foreman LAWRENCE E. PERRYMAN SS 12778 1978 Shaft & Slope Examiner Foreman ERIC PERSINGER S 4688 09 2009 Surface Mine Foreman MICHAEL W. PERSINGER S 4343 07 2007 Surface Mine Foreman RICHARD H. PERSINGER SC667 83 1983 Surface Construction Supervisor WAYNE R. PERSINGER SC1468 95 1995 Surface Construction Supervisor RAYMOND C. PETERMAN SC320 83 1983 Surface Construction Supervisor GARY D PETERS S 3272 98 1998 Surface Mine Foreman JOHN A. PETERS SS 20881 1981 Shaft & Slope Examiner Foreman LARRY D. PETERS SC012 82 1982 Surface Construction Supervisor ROBERT M. PETERS S 3890 05 2005 Surface Mine Foreman DAVID C. PETERS II S 4627 09 2009 Surface Mine Foreman LARRY E. PETERS, JR. S 3827 04 2004 Surface Mine Foreman RICHARD G. PETERSEN SC 2230 03 2003 Surface Construction Supervisor DANIEL P. PETERSON S 5166 13 2013 Surface Mine Foreman DONALD L. PETERSON SC 2400 05 2005 Surface Construction Supervisor J C. PETERSON SC 2897 12 2012 Surface Construction Supervisor SHERRILL G. PETERSON SC 2895 12 2012 Surface Construction Supervisor CHARLES J. PETHTEL SC1679 96 1996 Surface Construction Supervisor DANNY L. PETIT S 330 79 1979 Surface Mine Foreman ANTONIO JR. PETITTO S 1158 79 1979 Surface Mine Foreman FRANK A. PETITTO S 656 79 1979 Surface Mine Foreman MICHAEL L. PETITTO S 2135 86 1986 Surface Mine Foreman SAMUEL MICHAEL PETITTO, JR. S 1544 81 1981 Surface Mine Foreman DONAL L. PETREY S 2393 89 1989 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE FRANK PETRONE SC503 83 1983 Surface Construction Supervisor JAMES PETRONE SC910 90 1990 Surface Construction Supervisor RICHARD A. PETRONKA SC1423 95 1995 Surface Construction Supervisor BRYAN K. PETROSKY S 2608 91 1991 Surface Mine Foreman BRYAN K. PETROSKY SC 2070 00 2000 Surface Construction Supervisor DANIEL F. PETRUNAK SC 2456 06 2006 Surface Construction Supervisor CHILTON N PETRY S 3266 98 1998 Surface Mine Foreman HOWARD PETRY JR. S 2225 87 1987 Surface Mine Foreman DAVID A. PETTI S 3955 05 2005 Surface Mine Foreman DANNY L. PETTIT SC1522 96 1996 Surface Construction Supervisor OLIVER E. PETTREY SC1356 95 1995 Surface Construction Supervisor PAUL T. PETTREY S 2025 85 1985 Surface Mine Foreman JAMES K. PETTRY S 3673 03 2003 Surface Mine Foreman SKIP W. PETTRY S 3828 04 2004 Surface Mine Foreman FREDERICK R. PETTYPIECE SC1285 95 1995 Surface Construction Supervisor NANCY R. PEYTON S 2888 93 1993 Surface Mine Foreman NANCY R. PEYTON S 2888 33 1993 Asst. Surface Mine Foreman GLENN PFEIFER SC1607 96 1996 Surface Construction Supervisor JOHN V. PFILE SC453 83 1983 Surface Construction Supervisor KIT C. PHARES S 4644 09 2009 Surface Mine Foreman STEVE L. PHARES S 5304 15 2015 Surface Mine Foreman HAROLD C. PHILLIPPI SC065 82 1982 Surface Construction Supervisor ALPHA J. PHILLIPS SS 7476 1976 Shaft & Slope Examiner Foreman BRETT E. PHILLIPS S 4923 11 2011 Surface Mine Foreman BRETT E. PHILLIPS S 1140 A 2010 Asst. Surface Mine Foreman CHARLES D. PHILLIPS S 4423 08 2008 Surface Mine Foreman CHARLES D. PHILLIPS S 4889 11 2011 Surface Mine Foreman CHARLES D. PHILLIPS SC 2525 07 2007 Surface Construction Supervisor CLARENCE C. PHILLIPS S 636 79 1979 Surface Mine Foreman DANIEL A. PHILLIPS S 836 79 1979 Surface Mine Foreman DONALD G. PHILLIPS S 1069 79 1979 Surface Mine Foreman DONALD G. PHILLIPS S 4609 09 2009 Surface Mine Foreman ESTIL G. PHILLIPS SC230 82 1982 Surface Construction Supervisor FRED A. PHILLIPS S 595 79 1979 Surface Mine Foreman GARY A. PHILLIPS SC340 83 1983 Surface Construction Supervisor JEREMY L. PHILLIPS SC 2392 05 2005 Surface Construction Supervisor JERRY G. PHILLIPS SC1286 95 1995 Surface Construction Supervisor KEVIN G. PHILLIPS SS 23785 1985 Shaft & Slope Examiner Foreman KEVIN G. PHILLIPS SC935 91 0 Surface Construction Supervisor ROBERT E. PHILLIPS S 3674 03 2003 Surface Mine Foreman TERRY L. PHILLIPS S 601 79 1979 Surface Mine Foreman THOMAS E. PHILLIPS SC1357 95 1995 Surface Construction Supervisor CECIL A. PHILLIPS III S 3792 04 2004 Surface Mine Foreman DONALD R. PHILLIPS, JR. SS 373 05 2005 Shaft & Slope Examiner Foreman CHARLES E. PHIPPS S 1490 81 1981 Surface Mine Foreman GEORGE T. PHIPPS SC1636 96 1996 Surface Construction Supervisor PAUL E. PHIPPS SC916 90 0 Surface Construction Supervisor JERRY A. PICCIN S 3880 05 2005 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE BURTON W. PIERCE S 823 79 1979 Surface Mine Foreman ERNEST G. PIERCE S 819 79 1979 Surface Mine Foreman JAMES B. PIERCE, JR. S 2553 90 1990 Surface Mine Foreman RODGER D PIERCE JR. S 5444 17 2017 Surface Mine Foreman JAMES W. PIERSON S 4181 06 2006 Surface Mine Foreman STEVEN W. PIERSON SC 2250 04 2004 Surface Construction Supervisor TERRY L. PIERSON S 3964 05 2005 Surface Mine Foreman ROBERT M. PIFER S 382 79 1979 Surface Mine Foreman VERE E. PIFER SS 3873 1973 Shaft & Slope Examiner Foreman DONALD E. PIKE S 1088 79 1979 Surface Mine Foreman MICHAEL L. PINGLEY S 1067 79 1979 Surface Mine Foreman FRANK A. PINION JR. S 101 78 1978 Surface Mine Foreman EMMETT O. PINNELL, JR. S 453 79 1979 Surface Mine Foreman EMMETT O. PINNELL, JR. SC219 82 1982 Surface Construction Supervisor JOSEPH B. PINSON S 5263 14 2014 Surface Mine Foreman DON V. PIPER S 2319 88 1988 Surface Mine Foreman JOHNNIE PISINO SR. S 828 79 1979 Surface Mine Foreman CURTIS D. PITTMAN SC1093 93 1993 Surface Construction Supervisor DANIEL PITTMAN S 1119 A 2008 Asst. Surface Mine Foreman HERMAN L. PITTMAN S 2141 86 1986 Surface Mine Foreman KENNETH D. PITTMAN S 3200 97 1997 Surface Mine Foreman ROBERT R. PIXLER S 2690 91 1991 Surface Mine Foreman JOHNNY E. PLASTER S 1345 80 1980 Surface Mine Foreman SHAUN P. PLATTHY S 5047 12 2012 Surface Mine Foreman KEITH A. PLEMMONS SC 1929 98 1998 Surface Construction Supervisor EDMUND E. PLETCHER, JR. SC 2594 08 2008 Surface Construction Supervisor CHARLES R. PLUM S 696 79 1979 Surface Mine Foreman JOHNNY A. PLUM S 281 79 1979 Surface Mine Foreman JOSEPH F. PLUM SC 2877 12 2012 Surface Construction Supervisor MICHAEL A. PLUM SC1723 97 1997 Surface Construction Supervisor BRANDON N. PLUMLEY SC 2764 10 2010 Surface Construction Supervisor CARLOS R. PLUMLEY S 2606 91 1991 Surface Mine Foreman MATTHEW C. PLUMLEY S 5355 16 2016 Surface Mine Foreman PAUL PLUMLEY SC1277 95 1995 Surface Construction Supervisor SHAYNE M. PLUMMER S 1089 A 2007 Asst. Surface Mine Foreman BRETT C. PLYMALE SC 3029 15 2015 Surface Construction Supervisor CLARENCE POE S 3100 95 1995 Surface Mine Foreman DONNIE H. POE SC 1872 98 1998 Surface Construction Supervisor GLEN A. POE SC 2150 01 2001 Surface Construction Supervisor KEITH L. POE S 5095 12 2012 Surface Mine Foreman STEVEN R. POE S 4437 08 2008 Surface Mine Foreman CHADRICK A. POLAND S 5161 13 2013 Surface Mine Foreman LARRY J. POLCE SC1408 95 1995 Surface Construction Supervisor LARRY POLING S 1885 84 1984 Surface Mine Foreman STEPHEN M. POLING SC1388 95 1995 Surface Construction Supervisor JOSEPH D. POLINO S 1329 80 1980 Surface Mine Foreman RODNEY POLITINO S 33 78 1978 Surface Mine Foreman TONY POLITINO, JR. S 2279 88 1988 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOHN POLLACK, JR. SC451 83 1983 Surface Construction Supervisor ROBERT F. POMEROY S 2168 87 1987 Surface Mine Foreman JOHN G. POORE S 4005 05 2005 Surface Mine Foreman HAROLD G. POPE SC 2481 06 2006 Surface Construction Supervisor CHARLES J. PORTELL SC 2824 11 2011 Surface Construction Supervisor RALPH PORTER S 2620 91 1991 Surface Mine Foreman ROGER D. PORTER S 1232 79 1979 Surface Mine Foreman JAMES M. PORTER, JR. S 1931 84 1984 Surface Mine Foreman LARRY W. PORTERFIELD SC953 91 1991 Surface Construction Supervisor STEPHEN E. POSEY S 2126 86 1986 Surface Mine Foreman VINSEN A. POST S 1141 79 1979 Surface Mine Foreman VINSEN A. POST SC441 83 1983 Surface Construction Supervisor TRAVIS J. POSTLETHWAIT SC 2720 10 2010 Surface Construction Supervisor RAYMOND S. POTKOSKI S 3862 04 2004 Surface Mine Foreman AL JOEY POTTER S 2768 92 1992 Surface Mine Foreman HERBERT G. POTTER SC 1920 98 1998 Surface Construction Supervisor JAMES E. POTTER S 2766 92 1992 Surface Mine Foreman JOHN E. POTTER S 5445 17 2017 Surface Mine Foreman JOHN P. POTTER S 3787 04 2004 Surface Mine Foreman LAWRENCE B. POTTER SC 2467 06 2006 Surface Construction Supervisor MICHAEL L. POTTER S 3131 95 1995 Surface Mine Foreman ROGER L. POTTER S 3501 01 2001 Surface Mine Foreman WILLIAM D. POTTER S 3197 97 1997 Surface Mine Foreman WILLIAM M. POTTER S 5136 13 2013 Surface Mine Foreman CHRIS M. POTTS S 2826 92 1992 Surface Mine Foreman GLEN EDWIN POTTS S 920 79 1979 Surface Mine Foreman PHILIP M. POULTER S 3060 95 1995 Surface Mine Foreman GEORGE T. POWELL S 2483 90 1990 Surface Mine Foreman DAVID L. POWERS S 3626 02 2002 Surface Mine Foreman DENNIS E. POWERS SC 1941 98 1998 Surface Construction Supervisor FREDDY L. POWERS S 2905 93 1993 Surface Mine Foreman JAMES L. POWERS SC 2565 07 2007 Surface Construction Supervisor JASON S. POWERS SS 366 05 2005 Shaft & Slope Examiner Foreman JERRY L. POWERS SS 10277 0 Shaft & Slope Examiner Foreman MICHAEL L. POWERS SC954 91 1991 Surface Construction Supervisor ROGER B. POWERS SC 2249 04 2004 Surface Construction Supervisor JUAN J. PRADO SC 2776 11 2011 Surface Construction Supervisor ALLEN PRATER S 3850 04 2004 Surface Mine Foreman BILL M. PRATER S 3191 96 1996 Surface Mine Foreman TERRY PRATER S 2622 91 1991 Surface Mine Foreman KENNETH E. PRATER, JR. S 4966 11 2011 Surface Mine Foreman GEORGE B. PRATHER S 5421 17 2017 Surface Mine Foreman GLENN R. PRATT S 4312 07 2007 Surface Mine Foreman GREGORY K. PRATT S 5645 20 2020 Surface Mine Foreman JOHN PRATT SC1071 93 1993 Surface Construction Supervisor JOSEPH W. PRATT SS 20180 1980 Shaft & Slope Examiner Foreman WADE E. PRATT S 1892 84 1984 Surface Mine Foreman CHARLES TAYLOR PREAST S 254 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DALE R. PREAST, JR. S 4185 06 2006 Surface Mine Foreman THOMAS H. PREECE S 1549 81 1981 Surface Mine Foreman THOMAS H. PREECE SC683 83 1983 Surface Construction Supervisor JOSEPH D. PRENDERGAST SC044 82 1982 Surface Construction Supervisor RICHARD GENO PRESERVATI S 1049 79 1979 Surface Mine Foreman ROBERT C. PRESERVATI S 2906 93 1993 Surface Mine Foreman LARRY W. PRESLEY S 1179 79 1979 Surface Mine Foreman MICHAEL L. PRESLEY S 5382 05 2016 Surface Mine Foreman WILLIAM S. PRESLEY S 1179 80 1980 Surface Mine Foreman ANTHONY PRESTON S 4326 07 2007 Surface Mine Foreman ANTHONY PRESTON SC1535 96 1996 Surface Construction Supervisor JOHNNY J. PRESTON S 3330 99 1999 Surface Mine Foreman LYLE J. PRESTON S 4755 10 2010 Surface Mine Foreman DAVID A. PRETZEL S 1974 84 1984 Surface Mine Foreman RODNEY W. PREVETTE S 3784 04 2004 Surface Mine Foreman AARON T. PRICE S 3801 04 2004 Surface Mine Foreman BRIAN E. PRICE S 4860 10 2010 Surface Mine Foreman CHARLES E. PRICE SC192 82 1982 Surface Construction Supervisor DENNIS C. PRICE S 2221 87 1987 Surface Mine Foreman DON PRICE SC1693 97 1997 Surface Construction Supervisor DOUGLAS D. PRICE SC727 84 1984 Surface Construction Supervisor ERIC A. PRICE SC 3051 17 2017 Surface Construction Supervisor GREGORY L. PRICE S 4178 06 2006 Surface Mine Foreman JAMES E. PRICE S 1007 79 1979 Surface Mine Foreman JESSE S. PRICE SS 11677 1977 Shaft & Slope Examiner Foreman JOHN C. PRICE S 1100 79 1979 Surface Mine Foreman KEITH A. PRICE S 4367 07 2007 Surface Mine Foreman LARRY L. PRICE S 3805 04 2004 Surface Mine Foreman TRAVIS S. PRICE S 4836 10 2010 Surface Mine Foreman WILLIAM C. PRICE S 861 79 1979 Surface Mine Foreman EMIL L. PRICE, JR. SC 2650 08 2008 Surface Construction Supervisor HERBERT R. PRICE, JR. S 3865 05 2005 Surface Mine Foreman HERBERT R. PRICE, JR. S 1028 A 2003 Asst. Surface Mine Foreman JERRY G. PRICE, JR. S 3660 03 2003 Surface Mine Foreman WESLEY D. PRICE, SR. SS 19880 1980 Shaft & Slope Examiner Foreman WESLEY D. PRICE, SR. SC318 83 1983 Surface Construction Supervisor MICAH C. PRICHARD S 4802 10 2010 Surface Mine Foreman TIMOTHY R. PRICHARD S 2322 88 1988 Surface Mine Foreman DEWEY L. PRIDEMORE SC 1981 99 1999 Surface Construction Supervisor KENNETH W. PRIESTLEY S 4372 07 2007 Surface Mine Foreman RUDEAU P. PRIESTLEY SC189 82 1982 Surface Construction Supervisor JIMMY C. PRINCE SC 2147 01 2001 Surface Construction Supervisor KENNITH PRINCE S 3530 01 2001 Surface Mine Foreman BOYD FINLEY PRITCHARD S 1359 80 1980 Surface Mine Foreman GARY A. PRITT S 4765 10 2010 Surface Mine Foreman IRA H. PRITT S 2102 86 1986 Surface Mine Foreman BLAINE J. PRITTS SC258 82 1982 Surface Construction Supervisor DOTTIE L. PRITTS S 1686 82 1982 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE GLENN J. PRITTS SC1597 96 1996 Surface Construction Supervisor TIMOTHY E. PROCTOR S 4714 09 2009 Surface Mine Foreman GARY M. PRODEN SC 3099 18 2018 Surface Construction Supervisor GERALD H. PROFFITT S 2741 91 1991 Surface Mine Foreman JASPER M. PROVENZANO S 847 79 1979 Surface Mine Foreman MICHAEL D. PROVENZANO S 845 79 1979 Surface Mine Foreman SCOTT F. PRUDEN S 5574 19 2019 Surface Mine Foreman CROCKETT P. PRUITT SC1763 97 1997 Surface Construction Supervisor JOHN E. PRUITT S 5607 19 2019 Surface Mine Foreman RICHARD W. PRUMPHREY JR. S 1294 80 1980 Surface Mine Foreman FRANK S. PRUNEST JR. S 5339 15 2015 Surface Mine Foreman DANNY J. PUCKETT S 2958 94 1994 Surface Mine Foreman ELTON M. PUCKETT S 3473 01 2001 Surface Mine Foreman PAUL D. PUCKETT S 4881 11 2011 Surface Mine Foreman THOMAS L. PUCKETT. III S 4459 08 2008 Surface Mine Foreman THOMAS L. PUCKETT. III S 1101 A 2008 Asst. Surface Mine Foreman LARRY R. PUFFENBARGER S 977 79 1979 Surface Mine Foreman ROBERT L. PUFFENBARGER S 362 79 1979 Surface Mine Foreman DANIEL S. PUGH SM2038 85 1985 Surface Mine Foreman DAVID P. PUGH SC1530 96 0 Surface Construction Supervisor DAVID P. PUGH SC1530 96 1996 Surface Construction Supervisor JAMES G. PUGH S 4246 06 2006 Surface Mine Foreman JOHN D. PUGH S 2017 85 1985 Surface Mine Foreman THOMAS W. PUGH SC1403 95 1995 Surface Construction Supervisor WILLIAM F. PUGH JR. S 2074 85 1985 Surface Mine Foreman WALTER C. PUKALL SC 2704 09 2009 Surface Construction Supervisor KEM W. PULLEN SC1480 95 1995 Surface Construction Supervisor WILLIAM H. PURCELL SC1166 94 1994 Surface Construction Supervisor ANTHONY PUSTOVARH S 1146 A 2010 Asst. Surface Mine Foreman ANTHONY P. PUSTOVARH S 5012 11 2011 Surface Mine Foreman LESLIE L. PUTILLION SC 1637 96 1996 Surface Construction Supervisor RICHARD A. PUTILLION SC 2216 03 2003 Surface Construction Supervisor TONY M. PYATT S 4284 07 2007 Surface Mine Foreman TONY M. PYATT S 1070 A 2006 Asst. Surface Mine Foreman MICHAEL S. PYLE S 2337 88 1988 Surface Mine Foreman HAROLD W. PYLES S 37 78 1978 Surface Mine Foreman KEVIN C. PYLES SC 2617 08 2008 Surface Construction Supervisor TERRY E. PYLES S 5218 14 2014 Surface Mine Foreman TERRY E. PYLES SC 3131 19 2019 Surface Construction Supervisor TIMOTHY G. PYLES S 2639 91 1991 Surface Mine Foreman JAMES E. PYNE S 4325 07 2007 Surface Mine Foreman MARK K. PYSELL SC1744 97 1997 Surface Construction Supervisor RIZWAN QAYYUM S 1064 A 2005 Asst. Surface Mine Foreman BOBBY G. QUEEN S 4740 10 2010 Surface Mine Foreman CLINTON R. QUEEN S 1087 79 1979 Surface Mine Foreman ELLERY W. QUEEN S 4510 08 2008 Surface Mine Foreman TERRY R. QUEEN S 1825 84 1984 Surface Mine Foreman JACK L. QUEENER S 695 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JACK P. QUEENER S 3909 05 2005 Surface Mine Foreman JACK P. QUEENER SC1616 96 0 Surface Construction Supervisor JACK P. QUEENER SC1616 96 1996 Surface Construction Supervisor JAMES S. QUEENER S 3908 05 2005 Surface Mine Foreman JAMES S. QUEENER SC1614 96 1996 Surface Construction Supervisor RALPH E. QUICK S 2134 86 1986 Surface Mine Foreman DONALD R. QUIGLEY SC1213 95 1995 Surface Construction Supervisor ROY A. QUILLEN S 1426 81 1981 Surface Mine Foreman ROY A. QUILLEN SC1242 95 1995 Surface Construction Supervisor FLOYD V. QUILLIN SC 2370 05 2005 Surface Construction Supervisor KEVIN L. QUINN S 4678 09 2009 Surface Mine Foreman KEVIN L. QUINN S 1118 A 2008 Asst. Surface Mine Foreman SCOTTY L. QUINN SS 114 18 2018 Shaft and Slope Superintendent THOMAS G. QUINN SC1045 92 0 Surface Construction Supervisor THOMAS E. RAAB SC 3138 19 2019 Surface Construction Supervisor CHARLIE L. RADCLIFF SC 2765 10 2010 Surface Construction Supervisor DAVID L. RADCLIFF SC1006 92 1992 Surface Construction Supervisor JIMMY L. RADCLIFF SC 2580 08 2008 Surface Construction Supervisor MICHAEL R. RADCLIFF S 4427 08 2008 Surface Mine Foreman MICHAEL R. RADCLIFF S 1075 A 2006 Asst. Surface Mine Foreman JEFFREY RADDISH SC1769 97 1997 Surface Construction Supervisor WILLIAM C. RADER S 85 78 1978 Surface Mine Foreman HARRY D. RADFORD S 1130 79 1979 Surface Mine Foreman JOHN M. RADJENOVIC SS 333 02 2002 Shaft & Slope Examiner Foreman JESSE RAINES SC 2001 99 1999 Surface Construction Supervisor LARRY M. RAINES S 3105 95 1995 Surface Mine Foreman LARRY T. RAINES SC 2917 13 2013 Surface Construction Supervisor RUSSELL A. RAINES S 5450 17 2017 Surface Mine Foreman WILLIAM D. RAINES SC1302 95 1995 Surface Construction Supervisor MURRY H. RAINWATER SC753 84 1984 Surface Construction Supervisor ADAM RAKES SC 3055 17 2017 Surface Construction Supervisor MICHAEL W. RAKES S 4638 09 2009 Surface Mine Foreman CORY RALSTON S 4706 09 2009 Surface Mine Foreman ALAN W. RAMEY S 3584 02 2002 Surface Mine Foreman HOMER H. RAMEY S 2249 87 1987 Surface Mine Foreman TERRY D. RAMEY S 2210 87 1987 Surface Mine Foreman TERRY D. RAMEY SC1058 93 1993 Surface Construction Supervisor THOMAS P. RAMEY S 4112 06 2006 Surface Mine Foreman WARREN E. RAMEY SS 22583 1983 Shaft & Slope Examiner Foreman GERALD W. RAMSBURG S 2991 94 1994 Surface Mine Foreman CODY A. RAMSEY S 4935 11 2011 Surface Mine Foreman DARRELL K. RAMSEY S 3981 05 2005 Surface Mine Foreman DONALD E. RAMSEY S 1576 82 1982 Surface Mine Foreman DORSEY E. RAMSEY S 155 78 1978 Surface Mine Foreman FORREST E. RAMSEY S 787 79 1979 Surface Mine Foreman GERALD N. RAMSEY S 2280 88 1988 Surface Mine Foreman JAMES A. RAMSEY SC302 83 1983 Surface Construction Supervisor JAMES L. RAMSEY SC 2045 00 2000 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOHN E. RAMSEY S 4203 06 2006 Surface Mine Foreman MICHAEL A. RAMSEY S 4953 11 2011 Surface Mine Foreman PRESTON E. RAMSEY S 5439 17 2017 Surface Mine Foreman STEPHEN R. RAMSEY SC1389 95 1995 Surface Construction Supervisor JOHN H. RAMSEY, II S 4471 08 2008 Surface Mine Foreman JOHN H. RAMSEY, II S 1096 A 2007 Asst. Surface Mine Foreman FORREST E. RAMSEY SC 556 83 1983 Surface Construction Supervisor WILLIAM R. RANDALL SS 7376 1976 Shaft & Slope Examiner Foreman DEAN W. RANDOLPH SC 2349 05 2005 Surface Construction Supervisor RAYMOND L. RANDOLPH S 2426 89 1989 Surface Mine Foreman ROY D. RANDOLPH S 711 79 1979 Surface Mine Foreman LANTZ G. RANKIN S 3204 97 1997 Surface Mine Foreman WILLIAM K. RANSON SC 2164 02 2002 Surface Construction Supervisor JAMES R. RAPP S 5241 14 2014 Surface Mine Foreman JOHN R. RAPP S 947 79 1979 Surface Mine Foreman ROBERT L. RAPP S 1086 A 2007 Asst. Surface Mine Foreman ROE RAPP S 1062 79 1979 Surface Mine Foreman JOHN D. RASCHELLA S 3813 04 2004 Surface Mine Foreman DENNIS W. RASH SC 3153 20 2020 Surface Construction Supervisor DENNIS WAYNE RASH S 4033 06 2006 Surface Mine Foreman IRA W. RASH S 5139 13 2013 Surface Mine Foreman JIMMY L. RASH SC1278 95 1995 Surface Construction Supervisor JIMMIE C. RASNAKE S 3919 05 2005 Surface Mine Foreman KENNETH A. RASNAKE S 5123 12 2012 Surface Mine Foreman DARRYL L. RASO S 3166 96 1996 Surface Mine Foreman JEFFREY K. RATCLIFF SC 2843 11 2011 Surface Construction Supervisor JAMES E. RATCLIFF II S 3146 96 1996 Surface Mine Foreman DAVID M. RATLIFF S 3487 01 2001 Surface Mine Foreman JIMMY I. RATLIFF S 5031 12 2012 Surface Mine Foreman LAWRENCE C. RATLIFF S 309 79 1979 Surface Mine Foreman PATTY G. RATLIFF S 3606 02 2002 Surface Mine Foreman RICHARD W. RATLIFF S 2042 85 1985 Surface Mine Foreman WILLIAM S. RATLIFF S 5130 12 2012 Surface Mine Foreman DONALD E. RAY SC 2705 09 2009 Surface Construction Supervisor JACKIE R. RAY S 4734 10 2010 Surface Mine Foreman Kevin f. Ray DM 852 79 1979 Surface Mine Foreman LINDSEY W. RAY SC 2957 13 2013 Surface Construction Supervisor RICKY RAY S 2175 87 1987 Surface Mine Foreman ROBBIE S. RAY S 4723 10 2010 Surface Mine Foreman BILLY J. RAYE SC1047 92 0 Surface Construction Supervisor TERRY W. RAYNES S 2957 33 1993 Asst. Surface Mine Foreman LUTHER B. RAYNES JR. S 2296 88 1988 Surface Mine Foreman ROBERT READD S 2057 85 1985 Surface Mine Foreman ALBERT S. REAM SC 2077 01 2001 Surface Construction Supervisor ADAM F. RECKART SM2082 85 1985 Surface Mine Foreman CECIL GLEN RECKART S 667 79 1979 Surface Mine Foreman CHRISTOPHER A. RECKART SC 3137 19 2019 Surface Construction Supervisor JOHN C. RECKART S 243 78 1978 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOSEPH W. RECKART S 2660 91 1991 Surface Mine Foreman AARON G. REDDEN S 507 79 1979 Surface Mine Foreman CHARLES J. REDDEN SC215 82 1982 Surface Construction Supervisor DANNY EUGENE REDDEN S 80 78 1978 Surface Mine Foreman ELLIS E. REDDICK S 4788 10 2010 Surface Mine Foreman STEVE T. REDDICK S 4791 10 2010 Surface Mine Foreman LARRY D. REDMON S 2209 87 1987 Surface Mine Foreman BERT REED SS 9676 1976 Shaft & Slope Examiner Foreman DAVID G. REED SC1067 93 1993 Surface Construction Supervisor FLOYD L. REED SS 9776 1976 Shaft & Slope Examiner Foreman GARY L. REED S 4905 11 2011 Surface Mine Foreman JAMES E. REED S 1905 84 1984 Surface Mine Foreman JAMES E. REED S 5324 15 2015 Surface Mine Foreman JAMES EARL REED S 1904 84 1984 Surface Mine Foreman JONATHAN L. REED S 1906 84 1984 Surface Mine Foreman KIM W. REED S 3713 03 2003 Surface Mine Foreman MARK A. REED S 5402 17 2017 Surface Mine Foreman THOMAS J. REED S 1909 84 1984 Surface Mine Foreman JEFFREY K. REEDY S 4670 09 2009 Surface Mine Foreman CHARLES J. REEL S 2902 93 1993 Surface Mine Foreman WILLIAM M. REESE S 142 78 1978 Surface Mine Foreman DONALD N. REEVES SC1367 95 1995 Surface Construction Supervisor WILLIAM A. REEVES S2698 91 1991 Surface Mine Foreman JAMES F. REHE S 562 79 1979 Surface Mine Foreman JAMES W. REICHARD S 3954 05 2005 Surface Mine Foreman WILLIAM D. REID SC1135 94 1994 Surface Construction Supervisor WAYNE E. REIGHARD SC 539 83 1983 Surface Construction Supervisor BRUCE D. REMINES S 4221 06 2006 Surface Mine Foreman JAMES W. REMINES S 1982 84 1984 Surface Mine Foreman ROY D. REMINES SC 1984 99 1999 Surface Construction Supervisor RICHARD L. REMY. JR. SC 2474 06 2006 Surface Construction Supervisor RANDALL T. RENALDO SC116 82 1982 Surface Construction Supervisor WILLIAM W. RENKOVISH, JR. SC 2621 08 2008 Surface Construction Supervisor STEVEN DENNIS REXROAD S 296 79 1979 Surface Mine Foreman ELDON R. REXRODE S 1943 84 1984 Surface Mine Foreman MIGUEL A. REYES SC 2928 13 2013 Surface Construction Supervisor GREGORY W. REYNOLDS S 3746 04 2004 Surface Mine Foreman JUSTIN L. REYNOLDS SC 2985 14 2014 Surface Construction Supervisor KENNETH R. REYNOLDS SC 2798 11 2011 Surface Construction Supervisor STEVEN E. REYNOLDS SC1571 96 1996 Surface Construction Supervisor STEVEN R. REYNOLDS SC921 90 0 Surface Construction Supervisor FRANCIS D. REYNOLDS JR SS 122 19 2019 Shaft and Slope Superintendent EARNEST REYNOLDS, JR S 5350 16 2016 Surface Mine Foreman BRUNO R. REYNTJENS SC 2659 09 2009 Surface Construction Supervisor CHARLES R. RHODES S 2321 88 1988 Surface Mine Foreman DONALD E. RHODES S 1792 83 1983 Surface Mine Foreman ROBERT J. RHODES SS 132 20 2020 Shaft and Slope Superintendent ROBERT R. RHODES SC1268 95 1995 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE STEVEN RHODES S 4454 08 2008 Surface Mine Foreman WILLIAM J. RHODES SS 29 05 2005 Shaft and Slope Superintendent BURRELL D. RICE S 2257 88 1988 Surface Mine Foreman HIAWATHA WARD RICE S 871 79 1979 Surface Mine Foreman JAMES H RICE SC 1881 98 1998 Surface Construction Supervisor JOHN L. RICE SC 1944 98 1998 Surface Construction Supervisor MICHAEL A. RICE S 5520 18 2018 Surface Mine Foreman PARIS E. RICE SC 2379 05 2005 Surface Construction Supervisor RODNEY L. RICE SS 23484 1984 Shaft & Slope Examiner Foreman RODNEY L. RICE SC1664 96 1996 Surface Construction Supervisor SETH P. RICE S 3694 03 2003 Surface Mine Foreman WILLIAM J. RICE SR. SC 2103 01 2001 Surface Construction Supervisor JEFFREY L. RICHARD SC 1972 99 1999 Surface Construction Supervisor ANTHONY B. RICHARDS S 5033 12 2012 Surface Mine Foreman DARREL D. RICHARDS S 820 79 1979 Surface Mine Foreman DONALD EUGENE RICHARDS S 2324 88 1988 Surface Mine Foreman JOHN H. RICHARDS S 1402 81 1981 Surface Mine Foreman JOHN HARVEY RICHARDS S 1555 81 1981 Surface Mine Foreman ROBERT E. RICHARDS S 1127 79 1979 Surface Mine Foreman RONZEL C. RICHARDS S 924 79 1979 Surface Mine Foreman BILL M. RICHARDSON S 4870 10 2010 Surface Mine Foreman BILLY H. RICHARDSON S 530 79 1979 Surface Mine Foreman EDWARD A. RICHARDSON S 3087 95 1995 Surface Mine Foreman GEORGE L. RICHARDSON S 1240 80 1980 Surface Mine Foreman JOHN M. RICHARDSON SC1704 97 1997 Surface Construction Supervisor MARK E. RICHARDSON SC 2260 04 2004 Surface Construction Supervisor RANDOLPH B. RICHARDSON S 2934 93 1993 Surface Mine Foreman WAYNE D. RICHARDSON S 3157 96 1996 Surface Mine Foreman WAYNE D. RICHARDSON S 3157 28 1996 Asst. Surface Mine Foreman WILLIAM M. RICHARDSON S 1459 81 1981 Surface Mine Foreman DENNIS R. RICHMOND SM 227 78 1978 Surface Mine Foreman KEVIN RICHMOND S 3970 05 2005 Surface Mine Foreman ROBERT E. RICHMOND SC1629 96 1996 Surface Construction Supervisor RONALD F. RICHTER S 1939 84 1984 Surface Mine Foreman BRUCE E. RICKARDS SC 513 83 1983 Surface Construction Supervisor RONALD J. RICKEY S 2668 91 1991 Surface Mine Foreman GROVER L. RIDDLE S 2386 89 1989 Surface Mine Foreman HARRY WAYNE RIDDLE S 92 78 1978 Surface Mine Foreman WILLIAM W. RIDENOUR S 4681 09 2009 Surface Mine Foreman RICHARD D. RIDGWAY SC100 82 1982 Surface Construction Supervisor ELDON M. RIEGEL SC1092 93 1993 Surface Construction Supervisor CHARLES RIFE S 2521 90 1990 Surface Mine Foreman CHRISTOPHER A. RIFE S 4159 06 2006 Surface Mine Foreman DANNY RUSSELL RIFE S 4551 08 2008 Surface Mine Foreman DEREK R. RIFE S 5566 19 2019 Surface Mine Foreman JEREMY RIFE S 4158 06 2006 Surface Mine Foreman PHILLIP M. RIFE S 1767 83 1983 Surface Mine Foreman RALPH D. RIFE S 4170 06 2006 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CHARLES R. RIFFE S 4797 10 2010 Surface Mine Foreman MICHAEL C. RIFFE S 5582 19 2019 Surface Mine Foreman MCADOO B. RIFFE, II S 2976 94 1994 Surface Mine Foreman RANDALL L. RIFFLE S 4187 06 2006 Surface Mine Foreman RICHARD A. RIGGINS S 2682 91 1991 Surface Mine Foreman ARDEN K. RIGGLEMAN S 647 79 1979 Surface Mine Foreman GEORGE L. RIGGLEMAN S 345 79 1979 Surface Mine Foreman GEORGE M. RIGGLEMAN S 346 79 1979 Surface Mine Foreman DALE FLINT RIGGS S 556 79 1979 Surface Mine Foreman DAVID L. RIGGS S 1992 85 1985 Surface Mine Foreman GREGORY DALE RIGGS S 826 79 1979 Surface Mine Foreman LARRY O. RIGGS SC1390 95 1995 Surface Construction Supervisor MARK F. RIGGS S 634 79 1979 Surface Mine Foreman JERRY L. RIGHMAN S 803 79 1979 Surface Mine Foreman LEROY RIGSBY S 23 78 1978 Surface Mine Foreman EDWARD L. RILEY SC210 82 1982 Surface Construction Supervisor JAMES R. RILEY S 1425 81 1981 Surface Mine Foreman JUSTIN RILEY SC 3070 17 2017 Surface Construction Supervisor ROBERT S. RILEY SC 2218 03 2003 Surface Construction Supervisor ROBERT S. RILEY JR SC 3133 19 2019 Surface Construction Supervisor MARK A. RINCHICH S 4315 07 2007 Surface Mine Foreman ROBERT RAYMOND RINEHART S 3104 95 1995 Surface Mine Foreman DALE R. RINKER SC499 83 1983 Surface Construction Supervisor DALE T. RINKER S 5219 14 2014 Surface Mine Foreman RICHARD L. RIPLEY, JR. SC1814 97 1997 Surface Construction Supervisor WAYNE D. RISHEL SS 375 07 2007 Shaft & Slope Examiner Foreman KENNY RISNER S 4675 09 2009 Surface Mine Foreman STANLEY S. RISNER S 5070 12 2012 Surface Mine Foreman STEPHEN M. RIST S 3608 02 2002 Surface Mine Foreman PAUL M. RITCHEA S 4237 06 2006 Surface Mine Foreman CHARLES E. RITCHIE S 2850 92 1992 Surface Mine Foreman ERIC RITCHIE S 4828 10 2010 Surface Mine Foreman GREGORY L. RITCHIE S 5013 11 2011 Surface Mine Foreman MARK D. RITCHIE S 4775 10 2010 Surface Mine Foreman NICHOLAS A. RITCHIE SC068 82 1982 Surface Construction Supervisor JEFFERY W. RIVERS S 2522 90 1990 Surface Mine Foreman WILLIAM D. RIX SC 2562 07 2007 Surface Construction Supervisor EDWARD L. ROACH S 758 79 1979 Surface Mine Foreman ROBERT L. ROACH S 2150 87 1987 Surface Mine Foreman TIMOTHY R. ROACH SC1516 96 1996 Surface Construction Supervisor CARL FREED ROADMAN S 1688 82 1982 Surface Mine Foreman GARY A. ROARK S 504 79 1979 Surface Mine Foreman RALPH G. ROARK SC 508 83 1983 Surface Construction Supervisor RALPH G. ROARK SC0508 83 1983 Surface Construction Supervisor ROGER G. ROARK SC 2578 08 2008 Surface Construction Supervisor STEVEN A. ROARK SC 2577 08 2008 Surface Construction Supervisor JAMES C. ROBB S 602 79 1979 Surface Mine Foreman ELWOOD ROBBINS S 2849 92 1992 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILSON A. ROBBINS SS 7676 1976 Shaft & Slope Examiner Foreman BRIAN L. ROBERSON S 5244 14 2014 Surface Mine Foreman TRACY C. ROBERSON III S 3561 01 2001 Surface Mine Foreman BOBBY M. ROBERTS SC643 83 1983 Surface Construction Supervisor CLIFTON D. ROBERTS S 75 78 1978 Surface Mine Foreman CURTIS D. ROBERTS S 3783 04 2004 Surface Mine Foreman DWAYNE ROBERTS S 784 79 1979 Surface Mine Foreman JOSEPH ROBERTS SC 3007 14 2014 Surface Construction Supervisor KENNETH ROBERTS S 2347 88 1988 Surface Mine Foreman LEROY A. ROBERTS SS 13378 1978 Shaft & Slope Examiner Foreman RUSSELL T. ROBERTS SC 2890 12 2012 Surface Construction Supervisor TIMOTHY S. ROBERTS SC 2893 12 2012 Surface Construction Supervisor TONY E. ROBERTS S 4098 06 2006 Surface Mine Foreman TONY E. ROBERTS SC1072 93 1993 Surface Construction Supervisor TRAVIS D. ROBERTS S 4642 09 2009 Surface Mine Foreman TRUMAN R. ROBERTS S 135 78 1978 Surface Mine Foreman WILBUR N. ROBERTS S 4224 06 2006 Surface Mine Foreman WILLIS R. ROBERTS S 3533 01 2001 Surface Mine Foreman KENES P. ROBERTS JR S 4225 06 2006 Surface Mine Foreman DELMAS E. ROBERTS JR. S 4487 08 2008 Surface Mine Foreman CLIFTON D. ROBERTS, JR. S3226 97 1997 Surface Mine Foreman DARELD J. ROBERTSON S 396 79 1979 Surface Mine Foreman GEORGE W. ROBERTSON SC 2197 03 2003 Surface Construction Supervisor JOHNNY L. ROBERTSON SC794 85 1985 Surface Construction Supervisor JOHNNY L. ROBERTSON SC0794 85 1985 Surface Construction Supervisor NATHAN E. ROBERTSON S 2223 87 1987 Surface Mine Foreman ROBERT F. ROBERTSON SC789 85 1985 Surface Construction Supervisor TERRY A. ROBERTSON SC 2166 02 2002 Surface Construction Supervisor DELBART ROBERTSON, JR. S 5155 13 2013 Surface Mine Foreman CHARLES W. ROBINETTE S 5487 18 2018 Surface Mine Foreman CHRISTOPHER ROBINETTE S 4571 08 2008 Surface Mine Foreman CONDAR L. ROBINETTE S 2375 89 1989 Surface Mine Foreman FRANK D. ROBINETTE S 1648 16 1982 Asst. Surface Mine Foreman JAMES K. ROBINETTE SC1731 97 1997 Surface Construction Supervisor ALLEN D. ROBINSON S 3611 02 2002 Surface Mine Foreman BILL S. ROBINSON SC 1934 98 1998 Surface Construction Supervisor CHRISTOPHER L. ROBINSON S 5316 15 2015 Surface Mine Foreman CLARENCE D. ROBINSON SC 1932 98 1998 Surface Construction Supervisor CLIFFORD R. ROBINSON S 2800 92 1992 Surface Mine Foreman DOUG ROBINSON S 4428 08 2008 Surface Mine Foreman EDWARD E. ROBINSON S 1255 80 1980 Surface Mine Foreman JAMES C. ROBINSON SC188 82 1982 Surface Construction Supervisor JAMES L. ROBINSON S 672 79 1979 Surface Mine Foreman JEFFREY W. ROBINSON SC937 91 1991 Surface Construction Supervisor KENNETH D. ROBINSON SC854 86 1986 Surface Construction Supervisor LOWELL ROBINSON S 2006 85 1985 Surface Mine Foreman MICHAEL ROBINSON S 2231 87 1987 Surface Mine Foreman RONALD D. ROBINSON SS 331 00 2000 Shaft & Slope Examiner Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE RONALD SCOTT ROBINSON S 303 79 1979 Surface Mine Foreman ROSCOE C. ROBINSON S 962 79 1979 Surface Mine Foreman ROY D. ROBINSON S 961 79 1979 Surface Mine Foreman WAYNE D. ROBINSON S 2011 85 1985 Surface Mine Foreman WILLIAM E. ROBINSON S 5179 13 2013 Surface Mine Foreman BRADFORD ROBINSON JR. S 184 78 1978 Surface Mine Foreman DANIEL C. ROBISON S 2427 89 1989 Surface Mine Foreman CHRISTOPHER P. ROBLEE SC1059 93 1993 Surface Construction Supervisor DANIEL R. ROBLEE S 1536 81 1981 Surface Mine Foreman DANIEL R. ROBLEE SC1062 93 1993 Surface Construction Supervisor ALEX D. ROBY SS 394 19 2019 Shaft & Slope Examiner Foreman ROBERT L. ROBY, JR. SC477 83 1983 Surface Construction Supervisor JAMES D. ROCHESTER SC123 82 1982 Surface Construction Supervisor CHARLES W. ROCK SC 3054 17 2017 Surface Construction Supervisor RONALD E. RODEBAUGH S 2533 90 1990 Surface Mine Foreman ALBERT C. RODEBAUGH, II SC826 86 1986 Surface Construction Supervisor ALLAN C. ROE S 2338 88 1988 Surface Mine Foreman BRADLEY K. ROE S 2364 88 1988 Surface Mine Foreman KERRY L. ROE SC039 82 1982 Surface Construction Supervisor WILLIAM R. ROGER, JR. SC398 83 1983 Surface Construction Supervisor ARTHUR O. ROGERS S 2947 93 1993 Surface Mine Foreman CARL E. ROGERS S 2314 88 1988 Surface Mine Foreman CRAIG B. ROGERS SC118 82 1982 Surface Construction Supervisor ELLIOTT M. ROGERS S 2370 88 1988 Surface Mine Foreman FRANK W. ROGERS S 637 79 1979 Surface Mine Foreman FRANKLIN D. ROGERS S 519 79 1979 Surface Mine Foreman IRA W. ROGERS SC102 82 1982 Surface Construction Supervisor JAMES A. ROGERS S 1365 80 1980 Surface Mine Foreman JAMES B. ROGERS S 2948 93 1993 Surface Mine Foreman KENNETH ROGERS S 4335 07 2007 Surface Mine Foreman KEVIN W. ROGERS SC194 82 1982 Surface Construction Supervisor R. BRUCE ROGERS SC 2303 05 2005 Surface Construction Supervisor ROBERT BURTON ROGERS S 2318 88 1988 Surface Mine Foreman TEDDY M. ROGERS SC917 90 0 Surface Construction Supervisor TERRY ROGERS S 2406 89 1989 Surface Mine Foreman JIM ROHALL SC 2025 99 1999 Surface Construction Supervisor DAVID PAUL ROHR S 336 79 1979 Surface Mine Foreman HOWARD V. ROHR S 286 79 1979 Surface Mine Foreman RYAN S. ROHRSSEN S 5414 17 2017 Surface Mine Foreman JOE A. ROLES SC1551 96 1996 Surface Construction Supervisor CHARLES O. ROLES III SC 2954 13 2013 Surface Construction Supervisor CHARLES R. ROLLINS S 5065 12 2012 Surface Mine Foreman JED D. ROLLINS SC1670 96 1996 Surface Construction Supervisor JOSEPH A. ROLLINS S 5604 19 2019 Surface Mine Foreman RANDALL S. ROLLINS S 4904 11 2011 Surface Mine Foreman RANDALL S. ROLLINS S 1154 A 2010 Asst. Surface Mine Foreman WILLIAM ROLLINS SC 2433 06 2006 Surface Construction Supervisor GARY R. ROMANO S 3175 96 1996 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE GARY R. ROMANO SC3175 96 1996 Surface Construction Supervisor LOUIE J. ROMANO S 1156 79 1979 Surface Mine Foreman DANNY J. ROMINES S 3582 02 2002 Surface Mine Foreman JAMES E. ROOKSTOOL S 451 79 1979 Surface Mine Foreman ANTHONY S. ROOP S 4336 07 2007 Surface Mine Foreman LARRY L. ROOP S 584 79 1979 Surface Mine Foreman RONALD LEE ROOT S 1416 81 1981 Surface Mine Foreman LANNY R. RORICK SC1832 97 1997 Surface Construction Supervisor TERRY L. RORRER S 3903 05 2005 Surface Mine Foreman ARCH F. ROSE SC1790 97 1997 Surface Construction Supervisor CLAUDE E. ROSE S 4277 07 2007 Surface Mine Foreman DAVID J. ROSE S 2360 88 1988 Surface Mine Foreman EDGAR T. ROSE SC1401 95 1995 Surface Construction Supervisor EDWARD B. ROSE SC860 86 1986 Surface Construction Supervisor GARY R. ROSE S 2387 89 1989 Surface Mine Foreman GARY T. ROSE S 5143 13 2013 Surface Mine Foreman JAMES A. ROSE S 1958 84 1984 Surface Mine Foreman JOSHUA R. ROSE SC 2910 13 2013 Surface Construction Supervisor OTIS W. ROSE S 5226 14 2014 Surface Mine Foreman RONALD ROSE SS 358 04 2004 Shaft & Slope Examiner Foreman CHARLES M. ROSE JR. S 5507 18 2018 Surface Mine Foreman ARGIL J. ROSE SC584 83 1983 Surface Construction Supervisor DONALD G. ROSENBARGER SC249 82 1982 Surface Construction Supervisor PAUL E. ROSENBERGER S 1040 79 1979 Surface Mine Foreman MICHAEL F. ROSENTHAL S 6 78 1978 Surface Mine Foreman BENNY R. ROSS S 3435 00 2000 Surface Mine Foreman DAVID R. ROSS S 2972 94 1994 Surface Mine Foreman HARRY L. ROSS S 2820 92 1992 Surface Mine Foreman LEWIS C. ROSS S 190 78 1978 Surface Mine Foreman MARK A. ROSS S 3280 98 1998 Surface Mine Foreman RONALD ROSS SC614 83 1983 Surface Construction Supervisor VAL J. ROSS SC 2941 13 2013 Surface Construction Supervisor MARK D. ROSSEL SC1008 92 1992 Surface Construction Supervisor JOSEPH D. ROTENBERRY S 5022 12 2012 Surface Mine Foreman RALPH E. ROTENBERRY S 4240 06 2006 Surface Mine Foreman ROBERT J. ROUPE SC1831 97 1997 Surface Construction Supervisor FRANK D. ROUSH SC240 82 1982 Surface Construction Supervisor JACK GRAXDON ROUSH S 716 79 1979 Surface Mine Foreman HARRY P. ROUSH, JR. SS 29595 1995 Shaft & Slope Examiner Foreman BILLY J. ROWAN SC 2725 10 2010 Surface Construction Supervisor DAVID L. ROWE S 2288 88 1988 Surface Mine Foreman JASON A. ROWE SC 2859 12 2012 Surface Construction Supervisor ROBERT ROWE S 5237 14 2014 Surface Mine Foreman ROBERT L. ROWE S 561 79 1979 Surface Mine Foreman KENNETH ROWEN SC 2158 02 2002 Surface Construction Supervisor ROGER T. ROWLAND SC609 83 1983 Surface Construction Supervisor ROY CLEATIES ROWLAND S 4438 08 2008 Surface Mine Foreman ROMEO J. ROY SC 2387 05 2005 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE RONALD E. ROY S 1446 81 1981 Surface Mine Foreman DANNY ROY, JR. SC989 92 1992 Surface Construction Supervisor SHAWN L. RUBIN S 3991 05 2005 Surface Mine Foreman JAMES A. RUBY SC 1989 99 1999 Surface Construction Supervisor CLARENCE L. RUCKER SC 2568 07 2007 Surface Construction Supervisor JAMES R. RUCKER S 3931 05 2005 Surface Mine Foreman HAROLD J. RUCKPAUL SC1333 95 1995 Surface Construction Supervisor ANTHONY R. RUIZ S 4324 07 2007 Surface Mine Foreman ENRIQUE J. RUIZ S 3417 00 2000 Surface Mine Foreman JASON H. RUIZ S 5162 13 2013 Surface Mine Foreman SANTOS RUIZ SC589 83 1983 Surface Construction Supervisor THOMAS A. RULE S 4683 09 2009 Surface Mine Foreman ALBERT D. RUMMEL SS 29395 1995 Shaft & Slope Examiner Foreman EARL S. RUMMEL SS 19480 1980 Shaft & Slope Examiner Foreman EARL S. RUMMEL SC323 83 1983 Surface Construction Supervisor CLARENCE F. RUNION S 2229 87 1987 Surface Mine Foreman TIMOTHY D. RUNION S 3493 01 2001 Surface Mine Foreman LARRY L. RUNNER S 3628 02 2002 Surface Mine Foreman MARK A. RUNYAN S 4155 06 2006 Surface Mine Foreman BILLY RUNYON S 2751 92 1992 Surface Mine Foreman BRIAN RUNYON SC 2090 01 2001 Surface Construction Supervisor BRIAN M. RUNYON S 5436 17 2017 Surface Mine Foreman CARL RUNYON SC 1912 98 1998 Surface Construction Supervisor CHARLES J. RUNYON S 2601 91 1991 Surface Mine Foreman JOHNNY E. RUNYON S 4317 07 2007 Surface Mine Foreman PATRICK S RUNYON SC 2658 09 2009 Surface Construction Supervisor RONALD D. RUNYON S 3545 01 2001 Surface Mine Foreman TIMOTHY B. RUNYON S 4272 07 2007 Surface Mine Foreman TIMOTHY B. RUNYON SC1504 96 1996 Surface Construction Supervisor TIMOTHY C. RUNYON S 5367 16 2016 Surface Mine Foreman CLARENCE F. RUNYON, III S 2215 87 1987 Surface Mine Foreman DALLAS T. RUNYON, JR. S 2562 90 1990 Surface Mine Foreman BOBBY D. RUSH SC 1899 98 1998 Surface Construction Supervisor DANIEL R. RUSH SC 2295 05 2005 Surface Construction Supervisor MICHAEL S. RUSH SC 2602 08 2008 Surface Construction Supervisor RICHARD L. RUSH SC008 82 1982 Surface Construction Supervisor ROBERT RUSH SC1094 94 1994 Surface Construction Supervisor RUSSELL D. RUSH SC 2681 09 2009 Surface Construction Supervisor CHARLES R. RUSH, JR. SC 2597 08 2008 Surface Construction Supervisor JACK R. RUSH, SR. SC 569 83 1983 Surface Construction Supervisor FRED E. RUSSELL SC487 83 1983 Surface Construction Supervisor JAMES F. RUSSELL S 5375 16 2016 Surface Mine Foreman MATTHEW L. RUSSELL SC 2971 13 2013 Surface Construction Supervisor RONNIE J. RUSSELL S 4496 08 2008 Surface Mine Foreman ROY ARDEN RUSSELL S 3086 95 1995 Surface Mine Foreman SAMUEL RUSSELL SC1645 96 1996 Surface Construction Supervisor ALMUS E. RUST S 707 79 1979 Surface Mine Foreman F. ARLEY RUTH SC425 83 1983 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE GARY T. RUTHERFORD S 1593 82 1982 Surface Mine Foreman JOHN W. RUTHERFORD S 3791 04 2004 Surface Mine Foreman MICHAEL R. RUTLEDGE S 2120 86 1986 Surface Mine Foreman DARRELL R. RUTROUGH S 1287 80 1980 Surface Mine Foreman GREGORY A. RYAN SC1270 95 1995 Surface Construction Supervisor JAMES S. RYAN S 349 79 1979 Surface Mine Foreman JARRELL L. RYAN SC 1875 98 1998 Surface Construction Supervisor VICTOR R. RYAN SC052 82 1982 Surface Construction Supervisor WILLIAM C. RYAN SC071 82 1982 Surface Construction Supervisor EARL RYAN, JR. SC1269 95 1995 Surface Construction Supervisor ROBERT W. RYBSKI S 1737 83 1983 Surface Mine Foreman DANIEL C. RYDER S 645 79 1979 Surface Mine Foreman NOEL C. RYDER S 646 79 1979 Surface Mine Foreman PERRY A. RYDER S 1382 80 1980 Surface Mine Foreman RICHARD W. SACKETT SC 3091 18 2018 Surface Construction Supervisor JOHN S. SADDLER S 4115 06 2006 Surface Mine Foreman BRIAN V. SADZEWICZ S 3907 05 2005 Surface Mine Foreman MARK SAFREED SC1559 96 1996 Surface Construction Supervisor WILLIAM SALERNO S 1646 82 1982 Surface Mine Foreman RAYMOND L. SALEWSKY SC 2825 11 2011 Surface Construction Supervisor JEFFERY A. SALISBURY SC 2165 02 2002 Surface Construction Supervisor DAMIEN SALMONS S 4379 07 2007 Surface Mine Foreman MIKE SALMONS SC 2091 01 2001 Surface Construction Supervisor ROBERT W. SALMONS S 913 79 1979 Surface Mine Foreman PAUL SALTIS S 921 79 1979 Surface Mine Foreman BILLY R. SALYER S 4472 08 2008 Surface Mine Foreman ERIC D. SALYER SC1536 96 1996 Surface Construction Supervisor KENNETH R. SALYER S 2432 89 1989 Surface Mine Foreman WENDELL L. SALYER SC 2335 05 2005 Surface Construction Supervisor DON SALYERS S 4177 06 2006 Surface Mine Foreman LEE R. SALYERS SC 1910 98 1998 Surface Construction Supervisor MICHAEL D. SALYERS S 1112 A 2008 Asst. Surface Mine Foreman VIRGLE R. SALYERS S 4875 11 2011 Surface Mine Foreman VIRGLE R. SALYERS S 1138 A 2010 Asst. Surface Mine Foreman BRANDON S. SAMMONS S 4888 11 2011 Surface Mine Foreman JEFFERY P. SAMMONS S 3042 95 1995 Surface Mine Foreman PAUL M. SAMMONS S 2619 91 1991 Surface Mine Foreman BOBBY J. SAMS S 2503 90 1990 Surface Mine Foreman WILLIAM E. SAMUELS S 3641 02 2002 Surface Mine Foreman JONATHAN B. SANCHEZ S 3150 96 1996 Surface Mine Foreman JOSE M. SANCHEZ SC 2969 13 2013 Surface Construction Supervisor QUIRINO SANCHEZ SC 2732 10 2010 Surface Construction Supervisor DANIEL L. SANDERS SC 3064 17 2017 Surface Construction Supervisor JIM B. SANDERS S 2384 89 1989 Surface Mine Foreman JOHN SANDERS S 1976 84 1984 Surface Mine Foreman LESTER W. SANDERS SC295 83 1983 Surface Construction Supervisor NATHAN D. SANDERS SC679 83 1983 Surface Construction Supervisor RICHARD A. SANDERS SC198 82 1982 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ROBERT C. SANDERS SC625 83 1983 Surface Construction Supervisor JOHNNY SANDY SC 3039 16 2016 Surface Construction Supervisor LARRY R. SANDY SC665 83 1983 Surface Construction Supervisor PHILLIP D. SANDY S 3020 94 1994 Surface Mine Foreman CHARLES H. SANFORD SC777 85 1985 Surface Construction Supervisor TERRY L. SANFORD S 1843 84 1984 Surface Mine Foreman EMMANUEL N. SARAFIM SC 3047 16 2016 Surface Construction Supervisor MARTIN L. SARFINE SC 1976 99 1999 Surface Construction Supervisor THOMAS W. SARGENT SC1198 95 1995 Surface Construction Supervisor DALIP K. SARIN SM 199085 1985 Surface Mine Foreman RANDALL SARTIN S 140 78 1978 Surface Mine Foreman VICTOR R. SATTERFIELD SC 525 83 1983 Surface Construction Supervisor WILLIAM L. SAUCERMAN S 1869 84 1984 Surface Mine Foreman KARL E. SAUER S 2648 91 1991 Surface Mine Foreman DAVID A. SAULS S 5370 16 2016 Surface Mine Foreman JAMES R. SAUNDERS SC276 82 1982 Surface Construction Supervisor DENNIS E. SAVAGE S 2047 85 1985 Surface Mine Foreman WILLARD L. SAVAGE S 470 79 1979 Surface Mine Foreman JAMES H. SAWYERS S 2727 91 1991 Surface Mine Foreman SCOTT T. SAXTON SC977 92 1992 Surface Construction Supervisor BRIAN S. SAYLOR S 5425 17 2017 Surface Mine Foreman DOUGLAS B. SAYRE SC1124 94 1994 Surface Construction Supervisor DWIGHT W. SAYRE S 3846 04 2004 Surface Mine Foreman RICHARD R. SAYRE SC1671 96 1996 Surface Construction Supervisor ROBERT A. SCALESI SS 865 79 1979 Surface Mine Foreman DANNY R. SCARBERRY S 3614 02 2002 Surface Mine Foreman KENNETH P. SCARBERRY S 5100 12 2012 Surface Mine Foreman DENNIS H. SCARBRO S 1716 82 1982 Surface Mine Foreman ROGER D. SCARBRO S 1868 84 1984 Surface Mine Foreman DOUGLAS W. SCHANE SC 2795 11 2011 Surface Construction Supervisor GEORGE H. SCHARTIGER SC825 86 1986 Surface Construction Supervisor RONALD G. SCHARTIGER SC1598 96 1996 Surface Construction Supervisor RICHARD R. SCHAUM SS 377 08 2008 Shaft & Slope Examiner Foreman BOBBY D. SCHEAR SC 3013 15 2015 Surface Construction Supervisor FREDERICK L. SCHIEFER SC200 82 1982 Surface Construction Supervisor LINN K. SCHIEFER S 1626 82 1982 Surface Mine Foreman DANIEL J. SCHILLING SC1186 94 1994 Surface Construction Supervisor HARLEY S. SCHIMMEL SC 1911 98 1998 Surface Construction Supervisor SEAN M. SCHIMONSKY SC 3062 17 2017 Surface Construction Supervisor ROBERT M. SCHLAGER S 3067 34 1995 Asst. Surface Mine Foreman ROBERT M. SCHLAGER SC1513 96 1996 Surface Construction Supervisor HAROLD T. SCHMIDLE S 100 78 1978 Surface Mine Foreman WILLIAM L. SCHMIDT S 288 79 1979 Surface Mine Foreman ROBERT E. SCHMIDT, JR. S 289 79 1979 Surface Mine Foreman MARK A. SCHNEIDER SC 1990 99 1999 Surface Construction Supervisor EARL A. SCHOLL S 4087 06 2006 Surface Mine Foreman REX E. SCHOLL S 1523 81 1981 Surface Mine Foreman JAMES A. SCHOONOVER SC 2656 09 2009 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MATTHEW SCHRAM S 5211 14 2014 Surface Mine Foreman ALAN C. SCHROCK S 195 78 1978 Surface Mine Foreman MARK W. SCHROYER SC1089 93 1993 Surface Construction Supervisor HOWARD K. SCHWAB SC 2034 00 2000 Surface Construction Supervisor DAVID V. SCHWINABART S 2498 90 1990 Surface Mine Foreman RICHARD BURK SCHWINABART S 544 79 1979 Surface Mine Foreman TED M. SCHWINABART S 2493 90 1990 Surface Mine Foreman TIMOTHY B. SCHWINABART S 2494 90 1990 Surface Mine Foreman JAMES F. SCITES S 1472 81 1981 Surface Mine Foreman MARK A. SCITES S 4374 07 2007 Surface Mine Foreman JOHN F. SCOGGAN SC 2271 04 2004 Surface Construction Supervisor ARTHUR M. SCOTT SS 14478 1978 Shaft & Slope Examiner Foreman BOBBY L. SCOTT S 3511 01 2001 Surface Mine Foreman CHARLES M. SCOTT S 2975 94 1994 Surface Mine Foreman DAVID D. SCOTT S 3117 95 1995 Surface Mine Foreman DENNIS W. SCOTT SC743 84 1984 Surface Construction Supervisor EARNEST G. SCOTT SC630 83 1983 Surface Construction Supervisor GARY L. SCOTT SC 1878 98 1998 Surface Construction Supervisor HEATH A. SCOTT S 4235 06 2006 Surface Mine Foreman JOHN H. SCOTT S 5408 17 2017 Surface Mine Foreman JOSEPH T. SCOTT S 3539 01 2001 Surface Mine Foreman JOSH A. SCOTT S 4564 08 2008 Surface Mine Foreman MATTHEW S. SCOTT SC 2667 09 2009 Surface Construction Supervisor MICHAEL E. SCOTT SC1139 94 1994 Surface Construction Supervisor TROY A. SCOTT S 2329 88 1988 Surface Mine Foreman JACKIE L. SCOTT, JR. S 3518 01 2001 Surface Mine Foreman HAROLD Z. SCRAGG S 1079 79 1979 Surface Mine Foreman KYLE D. SCRAGG S 1618 82 1982 Surface Mine Foreman VINCENT W. SCRIPTUNAS, II S 2852 92 1992 Surface Mine Foreman FREDDIE C. SEABOLT S 230 78 1978 Surface Mine Foreman WALTER J. SEABOLT S 78 78 1978 Surface Mine Foreman GLENN W. SEABOLT, JR. S 223 78 1978 Surface Mine Foreman WENDELL L. SEABOLT, JR. S 2535 90 1990 Surface Mine Foreman CASEY A. SEARS SC857 86 1986 Surface Construction Supervisor MIKE G. SEARS SC858 86 1986 Surface Construction Supervisor PAUL S. SEARS SC1774 97 0 Surface Construction Supervisor ANDREW J. SEDLOCK S 22 78 1978 Surface Mine Foreman DARRELL K. SEE S 1018 79 1979 Surface Mine Foreman EARL LEE SELDERS S 1893 84 1984 Surface Mine Foreman EVERETT WAYNE SELDERS S 1942 84 1984 Surface Mine Foreman FRED SELETYN S 16 78 1978 Surface Mine Foreman BILLY SELF SS 113 14 2014 Shaft and Slope Superintendent BILLY J. SELF SS 388 14 2014 Shaft & Slope Examiner Foreman ROBERT M. SELLERS SC1555 96 1996 Surface Construction Supervisor ADAM SELMAN SC 2965 13 2013 Surface Construction Supervisor PHILIP L. SELMAN SC1672 96 1996 Surface Construction Supervisor LEOPAUL G. SENECAL SS 14878 1978 Shaft & Slope Examiner Foreman RONALD B. SENG S 1004 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE TIMOTHY M. SENTERS S 5359 16 2016 Surface Mine Foreman CHARLES L. SERGENT S 4103 06 2006 Surface Mine Foreman SHALIM O. SERRANO MENDEZ SC 2914 13 2013 Surface Construction Supervisor JARED L. SETLIFF S 4193 06 2006 Surface Mine Foreman OLIVER R. SETSER S 4608 09 2009 Surface Mine Foreman CLINTON SETTLE S 2395 89 1989 Surface Mine Foreman JOHNNY M. SETTLE S 2839 92 1992 Surface Mine Foreman DAVID L. SEVERT S 3657 03 2003 Surface Mine Foreman DELMAR E. SEXTON SC1764 97 1997 Surface Construction Supervisor JOSHUA P. SEXTON S 5107 12 2012 Surface Mine Foreman MARK T. SEXTON S 5308 15 2015 Surface Mine Foreman DAVID R. SHACKELFORD S 2702 91 1991 Surface Mine Foreman CLARENCE B. SHAFER S 3977 05 2005 Surface Mine Foreman DONALD F. SHAFER S 4500 08 2008 Surface Mine Foreman DWIGHT H. SHAFER SC1812 97 1997 Surface Construction Supervisor MARVIN W. SHAFER S 3978 05 2005 Surface Mine Foreman OLAF D. SHAFER S 2510 90 1990 Surface Mine Foreman OLAF D. SHAFER SC1809 97 1997 Surface Construction Supervisor OLAF H. SHAFER S 2509 90 1990 Surface Mine Foreman RONALD E. SHAFER S 2661 91 1991 Surface Mine Foreman RONALD E. SHAFER SC1766 97 1997 Surface Construction Supervisor SHAWN SHAFER S 4498 08 2008 Surface Mine Foreman BENNIE G. SHAFFER S 1925 84 1984 Surface Mine Foreman DONALD R. SHAFFER S 1494 81 1981 Surface Mine Foreman GEORGE A. SHAFFER SC1234 95 1995 Surface Construction Supervisor JAMES R. SHAFFER SC450 83 1983 Surface Construction Supervisor JEFFREY L. SHAFFER SC 2591 08 2008 Surface Construction Supervisor JOE H. SHAFFER S 1643 82 1982 Surface Mine Foreman JOHN H. SHAFFER S 1835 84 1984 Surface Mine Foreman KURT L. SHAFFER S 241 78 1978 Surface Mine Foreman OTTAS R. SHAFFER S 66 78 1978 Surface Mine Foreman PAUL G. SHAFFER S 51 78 1978 Surface Mine Foreman ROGER E. SHAFFER S 1671 82 1982 Surface Mine Foreman JAMES I. SHAFFER, SR. SC707 84 1984 Surface Construction Supervisor LUTHER H. SHAHAN S 699 79 1979 Surface Mine Foreman SHERWOOD C. SHAHAN S 2631 91 1991 Surface Mine Foreman TERRY E. SHAMBLEN S 2615 91 1991 Surface Mine Foreman DANIEL SHANEYFELT SS 360 04 2004 Shaft & Slope Examiner Foreman JAMES G. SHANK S 237 78 1978 Surface Mine Foreman RALPH L. SHANNON S 2822 92 1992 Surface Mine Foreman GEORGE W. SHANNON, JR. SS 14578 1978 Shaft & Slope Examiner Foreman JOHN SHARIER, III SC 2711 10 2010 Surface Construction Supervisor JASON SHARP S 5637 20 2020 Surface Mine Foreman JERRY SHARP S 1076 A 2006 Asst. Surface Mine Foreman SHERMAN A. SHARP S 2840 92 1992 Surface Mine Foreman DUANE C. SHATTUCK S 2851 92 1992 Surface Mine Foreman RICHARD D. SHAW S 3893 05 2005 Surface Mine Foreman STEVEN W. SHAWLEY SS 17 04 2004 Shaft and Slope Superintendent NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE GEORGE W. SHAWVER SC167 82 1982 Surface Construction Supervisor CLAYTON F. SHEAVES S 2918 93 1993 Surface Mine Foreman TERRY L. SHEBA SC126 82 1982 Surface Construction Supervisor JON D. SHEET S 1336 80 1980 Surface Mine Foreman JOE M. SHEETS S 1439 81 1981 Surface Mine Foreman RANDALL W. SHEETS S 3091 95 1995 Surface Mine Foreman RONALD L. SHEETS SC1449 95 1995 Surface Construction Supervisor CHARLES L. SHELPER SC066 82 1982 Surface Construction Supervisor BOBBY L. SHELTON SC 2194 03 2003 Surface Construction Supervisor BRIAN P. SHELTON S 4591 09 2009 Surface Mine Foreman DILLARD S. SHELTON S 1318 80 1980 Surface Mine Foreman ERIC M. SHELTON SC 2915 13 2013 Surface Construction Supervisor CHARLES E. SHELTON III S 3282 98 1998 Surface Mine Foreman DANNY W. SHEPHERD S 4792 10 2010 Surface Mine Foreman DARREN K. SHEPHERD S 5396 17 2017 Surface Mine Foreman JOSEPH D. SHEPHERD S 2878 93 1993 Surface Mine Foreman JOSEPH D. SHEPHERD SC 180497 1997 Surface Construction Supervisor NICKOLAS K. SHEPHERD S 5223 14 2014 Surface Mine Foreman ROBERT S. SHEPHERD S 2877 93 1993 Surface Mine Foreman SHELDON SHEPHERD S 5088 12 2012 Surface Mine Foreman TERRY L. SHEPHERD S 2564 90 1990 Surface Mine Foreman THOMAS W. SHEPLER S 825 79 1979 Surface Mine Foreman COLUMBUS SHEPPARD S 3467 01 2001 Surface Mine Foreman DARRELL J. SHEPPARD S 5313 15 2015 Surface Mine Foreman DAVID W. SHEPPARD S 4108 06 2006 Surface Mine Foreman ERNEST SHEPPARD S 1145 79 1979 Surface Mine Foreman HOWARD SHEPPARD S 2012 85 1985 Surface Mine Foreman LEWIS D. SHEPPARD S 5277 15 2015 Surface Mine Foreman FRED L. SHERMAN SC 551 83 1983 Surface Construction Supervisor ROBERT H. SHERMAN S 1032 79 1979 Surface Mine Foreman STEPHEN P. SHERRARD SC 2182 02 2002 Surface Construction Supervisor ROBERT L. SHERRILL S 4480 08 2008 Surface Mine Foreman JACK M. SHERWOOD S 199 78 1978 Surface Mine Foreman LENNIS E. SHERWOOD SC1085 93 1993 Surface Construction Supervisor LLOYD RAY SHERWOOD S 661 79 1979 Surface Mine Foreman MICHAEL R. SHERWOOD S 1946 84 1984 Surface Mine Foreman TIMOTHY E. SHIELER, SR. SC 2469 06 2006 Surface Construction Supervisor HUGH M. SHIFFLETT SS 13078 1978 Shaft & Slope Examiner Foreman MILFORD M. SHIFFLETT SC500 83 1983 Surface Construction Supervisor KENNETH A. SHIFLET S 150 78 1978 Surface Mine Foreman DON L. SHILLINGBURG SC1316 95 1995 Surface Construction Supervisor ROY K. SHILLINGBURG, JR. SC1332 95 1995 Surface Construction Supervisor KENNETH L. SHIMER S 985 79 1979 Surface Mine Foreman PRESTON G. SHIMER S 891 79 1979 Surface Mine Foreman VICTOR B. SHINGLER, JR. S 2960 94 1994 Surface Mine Foreman VICTOR B. SHINGLER, JR. S 2960 26 1994 Asst. Surface Mine Foreman THOMAS E. SHINGLETON S 931 79 1979 Surface Mine Foreman DONALD R. SHIPMAN S 70 78 1978 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MARK L. SHIRKEY S 4318 07 2007 Surface Mine Foreman MARK L. SHIRKEY S 1082 A 2007 Asst. Surface Mine Foreman DWIGHT E. SHIVLEY S 12 78 1978 Surface Mine Foreman CARL J. SHOCKEY SC001 82 1982 Surface Construction Supervisor BRUCE A. SHORT S 4532 08 2008 Surface Mine Foreman DONIVAN L. SHORT S 1506 81 1981 Surface Mine Foreman FREDDIE F. SHORT S 4434 08 2008 Surface Mine Foreman JAMES R. SHORT S 5083 12 2012 Surface Mine Foreman JASON M. SHORT SC 2380 05 2005 Surface Construction Supervisor KENNETH SHORT S 3453 01 2001 Surface Mine Foreman RONALD W. SHORT S 5463 18 2018 Surface Mine Foreman SAMUEL L. SHORT SC 3093 18 2018 Surface Construction Supervisor NATHAN T. SHORT JR S 5426 17 2017 Surface Mine Foreman JAMES A. SHORT, JR S 5184 13 2013 Surface Mine Foreman BRIAN K. SHORTER S 4119 06 2006 Surface Mine Foreman DOUGLAS W. SHORTER S 2780 92 1992 Surface Mine Foreman DOUGLAS W. SHORTER SC796 85 1985 Surface Construction Supervisor DWIGHT W. SHORTER S 4118 06 2006 Surface Mine Foreman JUSTIN R. SHORTER S 5508 18 2018 Surface Mine Foreman RANDAL U. SHORTER S 4659 09 2009 Surface Mine Foreman TRAVIS D. SHORTER S 4660 09 2009 Surface Mine Foreman JAMES L. SHOUGH SC1214 95 1995 Surface Construction Supervisor CHARLES K. SHRADER S 1497 81 1981 Surface Mine Foreman DONALD SHREVE SC1271 95 1995 Surface Construction Supervisor STEVE A. SHREVE SC1646 96 1996 Surface Construction Supervisor DORSEY E. SHREVE JR. S 4823 10 2010 Surface Mine Foreman DILLARD S. SHREWSBURY SC132 82 1982 Surface Construction Supervisor EDDIE A. SHREWSBURY SC1396 95 1995 Surface Construction Supervisor EVERETTE L. SHREWSBURY S 1159 79 1979 Surface Mine Foreman PARIS W. SHREWSBURY S 109 78 1978 Surface Mine Foreman TONEY SHREWSBURY S 2501 90 1990 Surface Mine Foreman VIRGIL A. SHREWSBURY, JR. SC1273 95 1995 Surface Construction Supervisor GEORGE G. SHROUT S 215 78 1978 Surface Mine Foreman CALVIN E. SHUCK S 874 79 1979 Surface Mine Foreman DANIEL R. SHUCK SC1573 96 1996 Surface Construction Supervisor ROY E. SHUCK SC1810 97 1997 Surface Construction Supervisor MAX E. SHUFF S 3393 00 2000 Surface Mine Foreman JOHN C. SHUFFLEBARGER SC408 83 1983 Surface Construction Supervisor DANIEL SHULER S 4771 10 2010 Surface Mine Foreman GARY D. SHULER S 5299 15 2015 Surface Mine Foreman THOMAS E. SHULL SS 48 06 2006 Shaft and Slope Superintendent DONLEY K. SHULTZ SC 2388 05 2005 Surface Construction Supervisor STEVEN E. SHULTZ SC 2876 12 2012 Surface Construction Supervisor THOMAS R. SHULTZ SC171 82 1982 Surface Construction Supervisor NELSON K. SHUMAN SC 2362 05 2005 Surface Construction Supervisor ESTEL J. SHUMATE S 5601 19 2019 Surface Mine Foreman RICHARD SHUMATE S 1753 83 1983 Surface Mine Foreman DONALD L. SHUNK SC1150 94 1994 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE FLEMING SID SC 164396 1996 Surface Construction Supervisor LESLIE W. SIEBERT SS 380 08 2008 Shaft & Slope Examiner Foreman JULIAN B. SIFERS S 1138 79 1979 Surface Mine Foreman HAROLD A. SIGLER SC 114 82 1982 Surface Construction Supervisor JOHN B. SIGLER SC 3090 18 2018 Surface Construction Supervisor LEONARD L. SIGLER SC115 82 1982 Surface Construction Supervisor PHILLIP W. SIGLER S 3953 05 2005 Surface Mine Foreman CALVIN A. SIGMON S 5168 13 2013 Surface Mine Foreman LARRY SIGMON SC 2590 08 2008 Surface Construction Supervisor ORDIE J. SIGMON SC1565 96 1996 Surface Construction Supervisor JAMES W. SIGWALT SC906 90 1990 Surface Construction Supervisor RANDY E. SILLAMAN SS302 97 1997 Shaft & Slope Examiner Foreman BRADLEY E. SILVERS SC 3018 15 2015 Surface Construction Supervisor ANTHONY F. SILVESTER S 558 79 1979 Surface Mine Foreman JOHN E. SILVESTER S 653 79 1979 Surface Mine Foreman VINCENT F. SILVESTER S 651 79 1979 Surface Mine Foreman ANTHONY F. SILVESTER SC440 83 1983 Surface Construction Supervisor JOHN E. SIMLER S 4488 08 2008 Surface Mine Foreman CLAUDE G. SIMMONS S 1387 80 1980 Surface Mine Foreman CLAUDE G. SIMMONS SC705 83 1983 Surface Construction Supervisor DELMAR WAYNE SIMMONS S 463 79 1979 Surface Mine Foreman DON SIMMONS SC 3003 14 2014 Surface Construction Supervisor DONALD WAYNE SIMMONS S 949 79 1979 Surface Mine Foreman FRANKLIN L. SIMMONS S 3377 00 2000 Surface Mine Foreman FRANKLIN L. SIMMONS SC072 82 1982 Surface Construction Supervisor GERALD P. SIMMONS S 1715 82 1982 Surface Mine Foreman GERALD P. SIMMONS SC376 83 1983 Surface Construction Supervisor GREGG SIMMONS S 2581 90 1990 Surface Mine Foreman JAMES D. SIMMONS S 4355 07 2007 Surface Mine Foreman JOHN A. SIMMONS SS 52 73 1973 Shaft & Slope Examiner Foreman JOHN M. SIMMONS SC 2999 14 2014 Surface Construction Supervisor JORDAN M. SIMMONS S 1771 83 1983 Surface Mine Foreman MELVIN E. SIMMONS S 1922 84 1984 Surface Mine Foreman PAUL M. SIMMONS S 1019 79 1979 Surface Mine Foreman ROY P. SIMMONS SC289 83 1983 Surface Construction Supervisor JOHN A. SIMMONS, JR. SS 22383 1983 Shaft & Slope Examiner Foreman ERIC L. SIMMS SC1680 96 1996 Surface Construction Supervisor JEREMY R. SIMMS S 5266 14 2014 Surface Mine Foreman RICHARD A. SIMMS SC 2512 06 2006 Surface Construction Supervisor DAVID A. SIMON SC1340 95 1995 Surface Construction Supervisor WILLIAM J. SIMON SC 2879 12 2012 Surface Construction Supervisor GREGORY SIMPKINS SC 2885 12 2012 Surface Construction Supervisor IRA M. SIMPKINS S 3009 94 1994 Surface Mine Foreman RICKY J. SIMPKINS S 2915 93 1993 Surface Mine Foreman DAVID P. SIMPSON S 5242 14 2014 Surface Mine Foreman GARY L. SIMPSON SC1279 95 1995 Surface Construction Supervisor RANDALL A. SIMPSON S 5489 18 2018 Surface Mine Foreman RICHARD F. SIMPSON SS 77 07 2007 Shaft and Slope Superintendent NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ROGER L. SIMPSON S 5054 12 2012 Surface Mine Foreman TERRY M. SIMPSON SC581 83 1983 Surface Construction Supervisor JAMES O. SIMS SC1155 94 1994 Surface Construction Supervisor JAY PHILLIP SIMS S 1764 83 1983 Surface Mine Foreman JOHN W. SIMS SC383 83 1983 Surface Construction Supervisor MICHAEL G. SIMS S 914 79 1979 Surface Mine Foreman PHILLIPS S. SIMS SC294 83 1983 Surface Construction Supervisor JOSEPH L. SINES S 1307 80 1980 Surface Mine Foreman ANTHONY W. SINGLETON S 3369 00 2000 Surface Mine Foreman CHARLES SINGLETON S2805 92 1992 Surface Mine Foreman JERRY W. SINGLETON S 315596 1996 Surface Mine Foreman JOEL M. SINGLETON SC1184 94 1994 Surface Construction Supervisor RAYMOND L. SINGLETON S 569 79 1979 Surface Mine Foreman ROBERT C. SINSEL S 1819 83 1983 Surface Mine Foreman BEN O. SIPE SC1215 95 1995 Surface Construction Supervisor TIMOTHY V. SIPPLE S 3759 04 2004 Surface Mine Foreman FRANK A. SISK SS 17980 1980 Shaft & Slope Examiner Foreman JEFFERY S. SISLER S 2388 89 1989 Surface Mine Foreman OTIS V. SISLER S 2093 86 1986 Surface Mine Foreman REX R. SISLER SM 169282 1982 Surface Mine Foreman ROBERT ROY SISLER S 1864 84 1984 Surface Mine Foreman SHERMAN SISLER S 946 79 1979 Surface Mine Foreman WILLIAM SISTIK SC109 82 1982 Surface Construction Supervisor DAVID L. SIX C03 76 1976 Clay Mine Foreman JAMES D. SIZEMORE S 4757 10 2010 Surface Mine Foreman JOHN J. SIZEMORE S 2599 91 1991 Surface Mine Foreman KENNY D. SIZEMORE S 4903 11 2011 Surface Mine Foreman KENNY D. SIZEMORE SC 2204 03 2003 Surface Construction Supervisor WILLIAM W. SIZEMORE SC702 83 1983 Surface Construction Supervisor JOHN P. SIZEMORE JR. S 730 79 1979 Surface Mine Foreman ALFRED K. SKAGGS S 779 79 1979 Surface Mine Foreman ALFRED MACK SKAGGS S 1666 82 1982 Surface Mine Foreman JACKIE D. SKEENS SC1610 96 1996 Surface Construction Supervisor MICHAEL L. SKEENS S 4992 11 2011 Surface Mine Foreman LEE R. SKEENS JR S 3982 05 2005 Surface Mine Foreman JOSEPH L. SKELLEY S 196 78 1978 Surface Mine Foreman FRANK SKERL, JR. SC1692 97 1997 Surface Construction Supervisor WILLIAM R. SKIBO S 3164 96 1996 Surface Mine Foreman WILLIAM R. SKIBO SC1568 96 1996 Surface Construction Supervisor ALLEN A. SKIDMORE SS 4773 1973 Shaft & Slope Examiner Foreman GEORGE F. SKIDMORE S 2781 92 1992 Surface Mine Foreman HURLEY B. SKIDMORE SS 45 73 1973 Shaft & Slope Examiner Foreman JOHN K. SKIDMORE S 650 79 1979 Surface Mine Foreman SAMUEL M. SKIDMORE S 2965 94 1994 Surface Mine Foreman KEVIN D. SKILES SC 2002 99 1999 Surface Construction Supervisor AARON L. SKINNER SS 130 19 2019 Shaft and Slope Superintendent JUNE SKINNER S 648 79 1979 Surface Mine Foreman LEE M. SKINNER SS 28091 1991 Shaft & Slope Examiner Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MARK D. SKINNER SC 2526 07 2007 Surface Construction Supervisor RONALD L. SKINNER SC 2273 04 2004 Surface Construction Supervisor RICHARD W. SKIPPER SC1512 96 1996 Surface Construction Supervisor LARRY R. SLAGLE SC993 92 1992 Surface Construction Supervisor EARNEST E. SLAMONS S 1574 82 1982 Surface Mine Foreman GEORGE D. SLATER S 1226 79 1979 Surface Mine Foreman HANSFORD L. SLATER SC841 86 1986 Surface Construction Supervisor BRIAN S. SLAUGENHAUPT SC 2534 07 2007 Surface Construction Supervisor RAY F. SLAYTON S 483 79 1979 Surface Mine Foreman EDDIE W. SLAZO SC 2062 00 2000 Surface Construction Supervisor LANNY S. SLAZO SC 2063 00 2000 Surface Construction Supervisor DERIK W. SLOAN S 4773 10 2010 Surface Mine Foreman JAMES G. SLOAN S 3517 01 2001 Surface Mine Foreman JOHN R. SLOAN SC595 83 1983 Surface Construction Supervisor ROBERT L. SLOAN SC 2447 06 2006 Surface Construction Supervisor RAY SLOAN, JR. SM2066 85 0 Surface Mine Foreman ALLEN W. SLONE SC 2326 05 2005 Surface Construction Supervisor BILLY E. SLONE S 4924 11 2011 Surface Mine Foreman CLARENCE W. SLONE S 3730 03 2003 Surface Mine Foreman EVERETT SLONE S 2097 86 1986 Surface Mine Foreman JIMMIE L. SLONE S 4038 06 2006 Surface Mine Foreman KEVIN L. SLONE S 5284 15 2015 Surface Mine Foreman MARTY W. SLONE S 5428 17 2017 Surface Mine Foreman RANDOLPH E. SLONE SC1344 95 1995 Surface Construction Supervisor RONNIE SLONE S 1787 83 1983 Surface Mine Foreman WILLARD R. SLONE S 5374 16 2016 Surface Mine Foreman TIMOTHY C. SLUSS S 5129 12 2012 Surface Mine Foreman ALLIE W. SMAIDI SC 2710 10 2010 Surface Construction Supervisor CHRISTOPHER SMAILES S 4567 08 2008 Surface Mine Foreman GEORGE D. SMALLEY SC243 82 1982 Surface Construction Supervisor EDDIE D. SMALLWOOD SC 2054 00 2000 Surface Construction Supervisor GREGORY E. SMALLWOOD S 3549 01 2001 Surface Mine Foreman NICHOLAS J. SMALLWOOD S 5115 12 2012 Surface Mine Foreman TERRY J. SMALLWOOD S 1630 82 1982 Surface Mine Foreman ADAM SMART SC 2841 11 2011 Surface Construction Supervisor WILLIAM B. SMELTZER S 2744 92 1992 Surface Mine Foreman ARLIE SMITH S 4253 07 2007 Surface Mine Foreman ARTHUR E. SMITH SC978 92 1992 Surface Construction Supervisor BALLARD SMITH S 3099 95 1995 Surface Mine Foreman BENNY R. SMITH S 3636 02 2002 Surface Mine Foreman BERNARD P. SMITH S 1861 84 1984 Surface Mine Foreman BILLIE J. SMITH S 2835 92 1992 Surface Mine Foreman BILLY J. SMITH SC642 83 1983 Surface Construction Supervisor BILLY R. SMITH SC 3030 16 2016 Surface Construction Supervisor BRUCE M. SMITH S 3782 04 2004 Surface Mine Foreman BRUCE M. SMITH S 1047 A 2004 Asst. Surface Mine Foreman CARL E. SMITH S 2078 85 1985 Surface Mine Foreman CARLOS G. SMITH S 2517 90 1990 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CECIL D. SMITH S 2287 88 1988 Surface Mine Foreman CHARLES A. SMITH S 718 79 1979 Surface Mine Foreman CHARLES E. SMITH S 488 79 1979 Surface Mine Foreman CHARLES K. SMITH S 1560 82 1982 Surface Mine Foreman CHRIS C. SMITH SC1485 95 1995 Surface Construction Supervisor CLARK W. SMITH SC891 88 0 Surface Construction Supervisor DALE S. SMITH SC1180 94 1994 Surface Construction Supervisor DANNY L. SMITH S 1640 82 1982 Surface Mine Foreman DAVID E. SMITH S 1799 85 1985 Surface Mine Foreman DAVID K. SMITH S 4090 06 2006 Surface Mine Foreman DAVID W. SMITH S 4430 08 2008 Surface Mine Foreman DONALD E. SMITH SC1566 96 1996 Surface Construction Supervisor DONALD R. SMITH SC1406 95 1995 Surface Construction Supervisor DONLEY H. SMITH S 1339 80 1980 Surface Mine Foreman EVERETTE A. SMITH S 5286 15 2015 Surface Mine Foreman FRANK H. SMITH S 1188 79 1979 Surface Mine Foreman FREDERICK D. SMITH SC1010 92 1992 Surface Construction Supervisor GARNETT R. SMITH SC 2202 03 2003 Surface Construction Supervisor GARY W. SMITH SC 2583 08 2008 Surface Construction Supervisor GREGORY W. SMITH SC 3113 19 2019 Surface Construction Supervisor HARRY R. SMITH SC1759 97 1997 Surface Construction Supervisor HERBERT OLEY SMITH S 564 79 1979 Surface Mine Foreman ISAAC D. SMITH S 4401 08 2008 Surface Mine Foreman JACK A. SMITH S 1561 82 1982 Surface Mine Foreman JAMES E. SMITH S 1081 79 1979 Surface Mine Foreman JAMES E. SMITH SS 12878 1978 Shaft & Slope Examiner Foreman JAMES L. SMITH SC918 90 0 Surface Construction Supervisor JAMES M. SMITH S 2677 91 1991 Surface Mine Foreman JAMES M. SMITH SC414 83 1983 Surface Construction Supervisor JARED H. SMITH SC 3114 19 2019 Surface Construction Supervisor JEFF SMITH S 5181 13 2013 Surface Mine Foreman JEFFERY T. SMITH S 5558 18 2018 Surface Mine Foreman JEFFREY S. SMITH S 3936 05 2005 Surface Mine Foreman JEFFREY S. SMITH SC1088 93 1993 Surface Construction Supervisor JERRY L. SMITH S 2837 92 1992 Surface Mine Foreman JERRY L. SMITH SC403 83 1983 Surface Construction Supervisor JERRY W. SMITH S 1695 82 1982 Surface Mine Foreman JIMMIE L. SMITH S 598 79 1979 Surface Mine Foreman JIMMY D. SMITH S 4573 08 2008 Surface Mine Foreman JIMMY W. SMITH S 2275 88 1988 Surface Mine Foreman JOHN D. SMITH SC1758 97 1997 Surface Construction Supervisor JOHN L. SMITH S 2273 88 1988 Surface Mine Foreman JOHN T. SMITH SC1572 96 1996 Surface Construction Supervisor JOSEPH K. SMITH SC1760 97 1997 Surface Construction Supervisor JOSEPH S. SMITH S 3548 01 2001 Surface Mine Foreman KEITH B. SMITH S 4596 09 2009 Surface Mine Foreman KENNA V. SMITH SC131 82 1982 Surface Construction Supervisor KENNETH D. SMITH S 3741 03 2003 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE KENNETH J. SMITH S 3154 96 1996 Surface Mine Foreman LARRY D. SMITH S 2198 87 1987 Surface Mine Foreman LESLIE F. SMITH S 4943 11 2011 Surface Mine Foreman MELVIN W. SMITH S 3134 96 1996 Surface Mine Foreman MICHAEL A. SMITH S 3353 99 1999 Surface Mine Foreman MICHAEL A. SMITH S 4933 11 2011 Surface Mine Foreman MICHAEL R. SMITH SC 2429 06 2006 Surface Construction Supervisor NATHANIEL J. SMITH S 5071 12 2012 Surface Mine Foreman NICKEY D. SMITH S 3864 05 2005 Surface Mine Foreman NICKEY D. SMITH S 1036 A 2003 Asst. Surface Mine Foreman PAUL SMITH S 2933 93 1993 Surface Mine Foreman PAUL A. SMITH SC1099 94 1994 Surface Construction Supervisor PAUL B. SMITH SC 2471 06 2006 Surface Construction Supervisor PAUL L. SMITH SC932 91 0 Surface Construction Supervisor RALPH D. SMITH S 4366 07 2007 Surface Mine Foreman RICARD S. SMITH SC 557 83 1983 Surface Construction Supervisor RICKY SMITH S 4086 06 2006 Surface Mine Foreman ROBERT W. SMITH S 3163 96 1996 Surface Mine Foreman RONALD L. SMITH SC1753 97 1997 Surface Construction Supervisor SAMUEL L. SMITH S 5171 13 2013 Surface Mine Foreman STEPHEN D. SMITH SC1100 94 1994 Surface Construction Supervisor STEPHEN S. SMITH SC1281 95 1995 Surface Construction Supervisor TALBOT C. SMITH S 2100 86 1986 Surface Mine Foreman TERRY L. SMITH S 2410 89 1989 Surface Mine Foreman THOMAS J. SMITH SS 26390 1990 Shaft & Slope Examiner Foreman VINCENT R. SMITH S 475 79 1979 Surface Mine Foreman VIRGIL R. SMITH S 631 79 1979 Surface Mine Foreman WILLARD K. SMITH S 655 79 1979 Surface Mine Foreman WINSTON D. SMITH S 1473 81 1981 Surface Mine Foreman EVERETT P. SMITH, II S 3318 98 1998 Surface Mine Foreman GILBERT SMITH, II, JR. SC1740 97 1997 Surface Construction Supervisor WARREN SMITH, JR SC009 82 1982 Surface Construction Supervisor BERNARD P. SMITH SC685 83 1983 Surface Construction Supervisor JAMES M. SMITH, JR. SC1280 95 1995 Surface Construction Supervisor THOMAS SMITH, JR. SS 64 06 2006 Shaft and Slope Superintendent ROGER L. SMITHSON SC1393 95 1995 Surface Construction Supervisor JOSEPH SMOODY SS 352 04 2004 Shaft & Slope Examiner Foreman ANTON SNEBERGER S 943 79 1979 Surface Mine Foreman DUSTIN J. SNEED S 5580 19 2019 Surface Mine Foreman DUSTIN J. SNEED S 1180 A 2018 Asst. Surface Mine Foreman JAMES D. SNEED S 2693 91 1991 Surface Mine Foreman MICHAEL K. SNELLING S 2777 92 1992 Surface Mine Foreman MERLIN R. SNIDER S 3132 95 1995 Surface Mine Foreman MERLIN R. SNIDER SC1491 96 1996 Surface Construction Supervisor FREDRICK A. SNIDER, JR. SC 2497 06 2006 Surface Construction Supervisor DAREN S. SNODGRASS SC1819 97 1997 Surface Construction Supervisor DONALD E. SNODGRASS S 1812 83 1983 Surface Mine Foreman PHILLIP SNODGRASS S 4603 09 2009 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE RANDY L. SNODGRASS S 4824 10 2010 Surface Mine Foreman RUDY L. SNODGRASS SC1136 94 1994 Surface Construction Supervisor JACKIE L. SNOW SC 810 85 1985 Surface Construction Supervisor RUSS A. SNOW SC 3160 20 2020 Surface Construction Supervisor CLYDE WENDOLENE SNYDER S 1879 84 1984 Surface Mine Foreman DANNY R. SNYDER S 4478 08 2008 Surface Mine Foreman PAUL F. SNYDER S 2610 91 1991 Surface Mine Foreman PAUL M. SNYDER S 3711 03 2003 Surface Mine Foreman ROBERT E. SNYDER S 3748 04 2004 Surface Mine Foreman ROBERT H. SNYDER S 1115 79 1979 Surface Mine Foreman WILLIAM R. SNYDER S 4435 08 2008 Surface Mine Foreman JUSTIN A. SOBECK SC 2772 11 2011 Surface Construction Supervisor PETER R. SOCASH SC 2535 07 2007 Surface Construction Supervisor NEVIN S. SOLLENBERGER SC172 82 1982 Surface Construction Supervisor THOMAS J. SOLOMON S 2420 89 1989 Surface Mine Foreman PATRICK M. SORRELL S 3541 01 2001 Surface Mine Foreman STEPHEN D. SORRELL S 3944 05 2005 Surface Mine Foreman RONALD J. SOSSONG, JR SC313 83 1983 Surface Construction Supervisor MICHAEL W. SOUTHERN S 2455 89 1989 Surface Mine Foreman EARMEL H. SOUTHERS S 1832 84 1984 Surface Mine Foreman DAVID E. SOVINE S 1706 82 1982 Surface Mine Foreman WILLIAM BRUCE SOVINE S 2073 85 1985 Surface Mine Foreman FRED SOWARDS S 897 79 1979 Surface Mine Foreman GEORGE R. SOWARDS S 2900 93 1993 Surface Mine Foreman DONALD R. SOWARDS, JR. S 2177 87 1987 Surface Mine Foreman SHERMAN M. SOWDER SC130 82 1982 Surface Construction Supervisor WILLIAM A. SOWDER S 3133 95 1995 Surface Mine Foreman WILLIAM A. SOWDER SC1761 97 1997 Surface Construction Supervisor TERRY L. SOWERS SC957 91 1991 Surface Construction Supervisor CLAUDE M. SPALDING SC 537 83 1983 Surface Construction Supervisor LYLE D. SPALDING SC1182 94 1994 Surface Construction Supervisor THOMAS K. SPALDING, JR. SC689 83 1983 Surface Construction Supervisor ANTHONY A. SPARKS S 5529 18 2018 Surface Mine Foreman CHARLES E. SPARKS S 2670 91 1991 Surface Mine Foreman DAVID S. SPARKS SC 2640 08 2008 Surface Construction Supervisor FRANK E. SPARKS S 2632 91 1991 Surface Mine Foreman GARY L. SPARKS S 4422 08 2008 Surface Mine Foreman JAMES W. SPARKS S2740 91 1991 Surface Mine Foreman JIM E. SPARKS S 5075 12 2012 Surface Mine Foreman JOHN P. SPARKS S 1713 82 1982 Surface Mine Foreman PAUL L. SPARKS S 5076 12 2012 Surface Mine Foreman WARREN S. SPARKS SC 2654 08 2008 Surface Construction Supervisor WALTER E. SPARTMAN S 5591 19 2019 Surface Mine Foreman EARSTEN SPAULDING S 1424 81 1981 Surface Mine Foreman ROGER SPAULDING SC 2909 13 2013 Surface Construction Supervisor JACK L. SPEARIN SC1545 96 1996 Surface Construction Supervisor BOBBY SPEARS SC1435 95 1995 Surface Construction Supervisor DANIEL E. SPEARS S 3853 04 2004 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE GARY C. SPEARS S 2368 88 1988 Surface Mine Foreman JASON R. SPEARS SC 2092 01 2001 Surface Construction Supervisor MARL D. SPECK S 1076 79 1979 Surface Mine Foreman JOHN M. SPENCE S 3855 04 2004 Surface Mine Foreman JOSEPH C. SPENCE S 5630 20 2020 Surface Mine Foreman RANDALL J. SPENCE S 1712 82 1982 Surface Mine Foreman ANDREW C. SPENCER SC1589 96 1996 Surface Construction Supervisor BRADLEY L. SPENCER S 3653 03 2003 Surface Mine Foreman GERREL LEE SPENCER S 688 79 1979 Surface Mine Foreman GRANT M. SPENCER S 910 79 1979 Surface Mine Foreman HERMAN L. SPENCER SS 13878 1978 Shaft & Slope Examiner Foreman LONNIE SPENCER S 229 78 1978 Surface Mine Foreman RICHARD A. SPENCER S 4416 08 2008 Surface Mine Foreman RICHARD A. SPENCER S 1074 A 2006 Asst. Surface Mine Foreman ROGER LEE SPENCER S 298 79 1979 Surface Mine Foreman SAUL E. SPENCER S 30 78 1978 Surface Mine Foreman STEVEN S. SPENCER S 1758 83 1983 Surface Mine Foreman TIMOTHY R. SPENCER S 2828 92 1992 Surface Mine Foreman WILLIAM H. SPENCER SS 14378 1978 Shaft & Slope Examiner Foreman VIRGIL SPENCER, JR. SC1673 96 1996 Surface Construction Supervisor CLIFFORD E. SPERRY S 5627 20 2020 Surface Mine Foreman GENE R. SPERRY SC 2816 11 2011 Surface Construction Supervisor ROBERT E. SPERRY S 3927 05 2005 Surface Mine Foreman ROBERT E. SPERRY SC1520 96 1996 Surface Construction Supervisor JOHN J. SPIGA, JR. S 2436 89 1989 Surface Mine Foreman THOMAS MARSHALL SPIKER S 1949 84 1984 Surface Mine Foreman GREGORY A. SPINELL S 3879 05 2005 Surface Mine Foreman ROBERT M. SPINKS SC926 91 0 Surface Construction Supervisor MICHAEL J. SPINO SC1608 96 1996 Surface Construction Supervisor RANDOLPH E. SPONAUGLE S 2308 88 1988 Surface Mine Foreman ROBERT D. SPONAUGLE SC157 82 1982 Surface Construction Supervisor MICHAEL D. SPRADLIN S 2664 91 1991 Surface Mine Foreman MICHAEL D. SPRADLIN SC984 92 1992 Surface Construction Supervisor JAMES E. SPRADLIN, JR. S 2665 91 1991 Surface Mine Foreman JACK L. SPRADLING SC 553 83 1983 Surface Construction Supervisor PETER L. SPRENGER SC231 82 1982 Surface Construction Supervisor ARCHIE G. SPROUSE S 724 79 1979 Surface Mine Foreman BILLY D. SPROUSE SC 1952 98 1998 Surface Construction Supervisor JAMES W. SPROUSE SC 2956 13 2013 Surface Construction Supervisor LARRY E. SPURLOCK S 894 79 1979 Surface Mine Foreman PETER L. SREDNICKI S 1026 79 1979 Surface Mine Foreman CRAIG J. ST. CLAIR S 2836 92 1992 Surface Mine Foreman CRAIG J. ST. CLAIR JR. S 2836 92 1992 Surface Mine Foreman JAMES B. ST.CLAIR SC 2472 06 2006 Surface Construction Supervisor JIMMIE L. STAATS SC1165 94 1994 Surface Construction Supervisor CARL STACEY S 529 79 1979 Surface Mine Foreman DARRIN L. STACY S 5200 13 2013 Surface Mine Foreman DENVER D. STACY S 137 78 1978 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ELLIS STACY S 3709 03 2003 Surface Mine Foreman J. C. STACY SC997 92 0 Surface Construction Supervisor J.C. STACY SC0997 92 1992 Surface Construction Supervisor JAMES R. STACY S 1717 82 1982 Surface Mine Foreman JERAMEY L. STACY S 4560 08 2008 Surface Mine Foreman JERAMEY L. STACY S 1091 A 2007 Asst. Surface Mine Foreman JONATHAN STACY SS 97 11 2011 Shaft and Slope Superintendent JUNIOR B. STACY S3203 97 1997 Surface Mine Foreman LONZO STACY S 2595 91 1991 Surface Mine Foreman MITCHELL STACY SS 65 06 2006 Shaft and Slope Superintendent MITCHELL STACY SS 326 99 1999 Shaft & Slope Examiner Foreman WESLEY R. STACY S 4799 10 2010 Surface Mine Foreman TONY R. STACY JR. S 4417 08 2008 Surface Mine Foreman CHARLES M. STAFFORD S3225 97 1997 Surface Mine Foreman FRED STAFFORD III CM3318481 1981 Clay Mine Foreman CHARLES W. STAGGS S 1453 81 1981 Surface Mine Foreman JOHN D. STAHLMAN S 2586 90 1990 Surface Mine Foreman MICHAEL D. STALLARD S 4502 08 2008 Surface Mine Foreman JEFFREY L. STAMPER S 2701 91 1991 Surface Mine Foreman ROY F. STANDIFUR, JR. S 4872 10 2010 Surface Mine Foreman CLIFFORD B. STANLEY S 5424 17 2017 Surface Mine Foreman DARREL K. STANLEY SC 2557 07 2007 Surface Construction Supervisor DAVID R. STANLEY SC 3128 19 2019 Surface Construction Supervisor DENNY STANLEY SC 2730 10 2010 Surface Construction Supervisor GARY E. STANLEY S 1700 83 1983 Surface Mine Foreman GARY E. STANLEY SC 3123 19 2019 Surface Construction Supervisor JEFFREY L. STANLEY S 2208 87 1987 Surface Mine Foreman LARKIN T. STANLEY S 390 79 1979 Surface Mine Foreman PRESTON S. STANLEY S 3354 99 1999 Surface Mine Foreman RALPH H. STANLEY SC374 83 1983 Surface Construction Supervisor ROBERT D. STANLEY S 4508 08 2008 Surface Mine Foreman TERRY W. STANLEY S 2162 87 1987 Surface Mine Foreman WARREN A. STANLEY S 3216 97 1997 Surface Mine Foreman WAYNE H. STANLEY S 384 79 1979 Surface Mine Foreman LARKIN T. STANLEY JR. SC 3124 19 2019 Surface Construction Supervisor LARKIN T. STANLEY, SR. S 391 79 1979 Surface Mine Foreman GEORGE M. STANYA S 468 79 1979 Surface Mine Foreman DOUGLAS E. STAPLETON S 3138 96 1996 Surface Mine Foreman FRANK STAPLETON S 3528 01 2001 Surface Mine Foreman RICHARD T. STAPLETON S 1514 81 1981 Surface Mine Foreman WILLIAM T. STAPLETON SC1373 95 1995 Surface Construction Supervisor KEITH D. STARCHER S 2732 91 1991 Surface Mine Foreman JOHNNY W. STARK SR. S 1851 84 1984 Surface Mine Foreman HENRY E. STARKS SC680 83 1983 Surface Construction Supervisor MYRAN E. STARR S 3948 05 2005 Surface Mine Foreman STEPHEN D. STARR S 343 79 1979 Surface Mine Foreman JOSEPH STARVAGGI S 534 79 1979 Surface Mine Foreman ERNEST K. STATEN S 4542 08 2008 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE RICKY A. STATEN II S 5643 20 2020 Surface Mine Foreman WILLIAM D. STATLER, JR. SC1711 97 1997 Surface Construction Supervisor ROGER D. STATON S 4012 05 2005 Surface Mine Foreman WILLIAM R. STATON SC1444 95 1995 Surface Construction Supervisor WESLEY S. STAUD, JR. SC1702 97 0 Surface Construction Supervisor QUINTEN F. STAUDT, JR. S 538 79 1979 Surface Mine Foreman JOHN E. STAUFFACHER SC 2739 10 2010 Surface Construction Supervisor ERIC LYNN STEAR S 2897 93 1993 Surface Mine Foreman LEROY M. STEAR S 2895 93 1993 Surface Mine Foreman NORMAN R. STEAR S 2896 93 1993 Surface Mine Foreman VIRGIL A. STEEL III S 4810 10 2010 Surface Mine Foreman BOBBY J. STEELE S 2447 89 1989 Surface Mine Foreman CARLOS P. STEELE S 2449 89 1989 Surface Mine Foreman CHANCEY R. STEELE S 3816 04 2004 Surface Mine Foreman DANNY J. STEELE S 2525 90 1990 Surface Mine Foreman JACK D. STEELE S3233 97 1997 Surface Mine Foreman JAMES W. STEELE SC129 82 1982 Surface Construction Supervisor LARRY E. STEELE SC1237 95 1995 Surface Construction Supervisor MILLARD F. STEELE S 4815 10 2010 Surface Mine Foreman STEPHEN R. STEELE SC1502 96 1996 Surface Construction Supervisor TRACY A. STEELE S 4795 10 2010 Surface Mine Foreman ZACHARY C. STEELE S 5458 18 2018 Surface Mine Foreman RONNIE G. STEFFEY SC 3117 19 2019 Surface Construction Supervisor KEVIN F. STEINHILBER S 1781 83 1983 Surface Mine Foreman ADRAIN E. STEMPLE S 2683 91 1991 Surface Mine Foreman ADRIAN E. STEMPLE SC1783 97 1997 Surface Construction Supervisor JOHN BRADFORD STEMPLE S 1107 79 1979 Surface Mine Foreman LELAND G. STEPHEN S 3737 03 2003 Surface Mine Foreman CLYDE B. STEPHENS S 2237 87 1987 Surface Mine Foreman JESSIE L. STEPHENS S 5221 14 2014 Surface Mine Foreman CHARLES D. STEPHENSON, JR. S 2635 91 1991 Surface Mine Foreman CHRISTOPHER B. STEPP SS 43 05 2005 Shaft and Slope Superintendent GREGORY STEPP SS 53 06 2006 Shaft and Slope Superintendent GREGORY J. STEPP SS 21082 1982 Shaft & Slope Examiner Foreman JOHN R. STEPP S 3993 05 2005 Surface Mine Foreman SAMMY D. STEPP S 1513 81 1981 Surface Mine Foreman THURREL STEPP S 3502 01 2001 Surface Mine Foreman BEDFORD STEVENS S 1341 80 1980 Surface Mine Foreman BILL STEVENS S 4817 10 2010 Surface Mine Foreman BRADY D. STEVENS SC 2850 12 2012 Surface Construction Supervisor CHARLES R. STEVENS SC 2830 11 2011 Surface Construction Supervisor DAVID L. STEVENS SC922 90 0 Surface Construction Supervisor FRANCIS E. STEVENS SC352 83 1983 Surface Construction Supervisor GILBERT L. STEVENS SC164 82 1982 Surface Construction Supervisor JEFFREY C. STEVENS SC1474 95 1995 Surface Construction Supervisor JERRY B. STEVENS S 2024 85 1985 Surface Mine Foreman JERRY B. STEVENS SC1358 95 1995 Surface Construction Supervisor LARRY STEVENS S 2127 86 1986 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE LARRY STEVENS SC959 91 1991 Surface Construction Supervisor LOYD S. STEVENS SC 1975 99 1999 Surface Construction Supervisor LARRY STEVENS, JR. S 5233 14 2014 Surface Mine Foreman ROBERT L. STEVENSON S 4334 07 2007 Surface Mine Foreman RONNIE J. STEVSNS S 2316 88 1988 Surface Mine Foreman CHRISTOPHER O. STEWARD SC 2972 13 2013 Surface Construction Supervisor CLYDE O. STEWARD S 3485 01 2001 Surface Mine Foreman AUDY L. STEWART S 5234 14 2014 Surface Mine Foreman DANIEL M. STEWART SC 2947 13 2013 Surface Construction Supervisor GREGORY D. STEWART SC1325 95 1995 Surface Construction Supervisor HUGH S. STEWART S 676 79 1979 Surface Mine Foreman JAMES R. STEWART SC 532 83 1983 Surface Construction Supervisor JAMES R. STEWART SC 1992 99 1999 Surface Construction Supervisor JEROME STEWART S 2045 85 1985 Surface Mine Foreman MICHAEL D. STEWART S 1218 80 1980 Surface Mine Foreman MICHAEL D. STEWART SC212 82 1982 Surface Construction Supervisor RICHARD A. STEWART SC1510 96 1996 Surface Construction Supervisor ROBERT STEWART SC 2023 99 1999 Surface Construction Supervisor STEPHEN D. STEWART SC1681 96 1996 Surface Construction Supervisor STEPHENSON R. STEWART SC 2232 03 2003 Surface Construction Supervisor TOMMY R. STEWART S3229 97 1997 Surface Mine Foreman WILLIAM S. STEWART S 1462 81 1981 Surface Mine Foreman DANNY J. STEWART JR S 3750 04 2004 Surface Mine Foreman ARNOLD JAY STEWART, JR. S 4527 08 2008 Surface Mine Foreman OSCAR D. STIDHAM S 5480 18 2018 Surface Mine Foreman ROBERT STIER SC 2342 05 2005 Surface Construction Supervisor JAMES N. STILES, JR. SC 2480 06 2006 Surface Construction Supervisor DENNIS J. STILLEY 2117 86 1986 Surface Mine Foreman AUDIE STILTHER, JR. S 3159 96 1996 Surface Mine Foreman DANNY D. STILTNER S 5300 15 2015 Surface Mine Foreman GREGORY STILTNER S 3654 03 2003 Surface Mine Foreman JEROME STILTNER S 3945 05 2005 Surface Mine Foreman MICHAEL E. STILTNER S 3537 01 2001 Surface Mine Foreman RICKEY V. STILTNER S 3436 00 2000 Surface Mine Foreman VIRLO STILTNER S 5193 13 2013 Surface Mine Foreman BRIAN L. STINE SC1835 97 1997 Surface Construction Supervisor MELVIN STININGER S 476 79 1979 Surface Mine Foreman SHAWN G. STIPES SC 2343 05 2005 Surface Construction Supervisor JERRY W. STIRE SS 379 08 2008 Shaft & Slope Examiner Foreman KENNETH STIRE SS 100 12 2012 Shaft and Slope Superintendent DONALD T. STIRE, JR. SS 25388 1988 Shaft & Slope Examiner Foreman THOMAS J. STIRE, JR. SS 368 05 2005 Shaft & Slope Examiner Foreman THOMAS P. STOCKDALE SC1442 95 1995 Surface Construction Supervisor ROY LEE STOKLEY S 44 78 1978 Surface Mine Foreman JAMES D. STOLLINGS S 3462 01 2001 Surface Mine Foreman DANIEL T. STONE S 3972 05 2005 Surface Mine Foreman DONNIE F. STONE SC 2814 11 2011 Surface Construction Supervisor JAMES O. STONE S 2794 92 1992 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JAMES W. STONE S 282 79 1979 Surface Mine Foreman KENNETH R. STONE S283 79 1979 Surface Mine Foreman LEWIS W. STONE SC 2572 07 2007 Surface Construction Supervisor MITCHEL R. STONE SC 2607 08 2008 Surface Construction Supervisor Wesley R. Stone S 2568 90 1990 Surface Mine Foreman CLARENCE A. STONE JR. S 4495 08 2008 Surface Mine Foreman WILLIAM P. STONEBRAKER, SR. SC 2118 01 2001 Surface Construction Supervisor JOHNNY L. STONECIPHER SC 2977 14 2014 Surface Construction Supervisor DANIEL J. STOOTS SC 2139 01 2001 Surface Construction Supervisor DONALD R. STOTTLEMIRE SC577 83 1983 Surface Construction Supervisor EDWARD J. STOUT S 4060 06 2006 Surface Mine Foreman JAMES A. STOUT S 2285 88 1988 Surface Mine Foreman JOHN STOUT SC1547 96 1996 Surface Construction Supervisor RAYMOND M. STOUT SS 7976 1976 Shaft & Slope Examiner Foreman HARRY T. STOUT, JR. SC1609 96 1996 Surface Construction Supervisor FRANKIE E. STOVER S 3822 04 2004 Surface Mine Foreman FRANKIE L. STOVER S 2075 85 1985 Surface Mine Foreman GARY L. STOVER SC1469 95 1995 Surface Construction Supervisor PAUL B. STOVER S 492 79 1979 Surface Mine Foreman ROCKY A. STOVER S 4052 06 2006 Surface Mine Foreman ROCKY A. STOVER SC 2276 04 2004 Surface Construction Supervisor ROY K. STOVER S 2984 94 1994 Surface Mine Foreman ROY K. STOVER SC664 83 1983 Surface Construction Supervisor STEPHEN G. STOVER S 3761 04 2004 Surface Mine Foreman FRANK L. STOVER, JR. S 3482 01 2001 Surface Mine Foreman WARREN E. STOVER, JR. S 5214 14 2014 Surface Mine Foreman CARLOESS D. STOWERS S 1095 79 1979 Surface Mine Foreman PAUL S. STOWERS S 5231 14 2014 Surface Mine Foreman SODER R. STOWERS S 1484 81 1981 Surface Mine Foreman S D. STRAHLE S 1151 79 1979 Surface Mine Foreman ROBERT B. STRALEY S 1543 81 1981 Surface Mine Foreman ROBERT J. STRANSKY SC149 82 1982 Surface Construction Supervisor CASSANDRA D. STRATTIS S 4968 11 2011 Surface Mine Foreman FRANCIS J. STRAWMIER SC203 82 1982 Surface Construction Supervisor DAVID L. STREET S 4341 07 2007 Surface Mine Foreman EDWARD M. STREET SC 3092 18 2018 Surface Construction Supervisor RAY STREET S 1807 83 1983 Surface Mine Foreman RICHARD G. STREET SC955 91 1991 Surface Construction Supervisor ALBERT L. STREETS S 1907 84 1984 Surface Mine Foreman CARL ANDREW STREETS S 459 79 1979 Surface Mine Foreman DAVID L. STREETS S 1908 84 1984 Surface Mine Foreman LAWRENCE ALLEN STREETS S 461 79 1979 Surface Mine Foreman THOMAS FRANKLIN STREETS S 460 79 1979 Surface Mine Foreman FRANKLIN D. STREETS, JR. SC914 90 1990 Surface Construction Supervisor FRANKLIN D. STREETS, SR. SC936 91 0 Surface Construction Supervisor HUBERT H. STRICKLAND SC177 82 1982 Surface Construction Supervisor TEDDY R. STRICKLAND S 3421 00 2000 Surface Mine Foreman TERRY K. STRONG SC410 83 1983 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE TIM L. STROSINDER S 4929 11 2011 Surface Mine Foreman JAMES T. STROTHER S 1326 80 1980 Surface Mine Foreman KELLY STROUD S 3040 94 1994 Surface Mine Foreman PHILLIP R. STROUD SC1108 94 1994 Surface Construction Supervisor ROGER D. STROUD S 3543 01 2001 Surface Mine Foreman WAYNE A. STROUD S 2617 91 1991 Surface Mine Foreman WILLIAM D. STROUD S 3064 95 1995 Surface Mine Foreman CECIL L. STUART S 2992 94 1994 Surface Mine Foreman GEORGE E. STUART S 1099 79 1979 Surface Mine Foreman GAIL B. STUART JR. S 1301 80 1980 Surface Mine Foreman DANIEL L. STULL S 2786 92 1992 Surface Mine Foreman GARY R. STULL S 1820 83 1983 Surface Mine Foreman RICHARD H. STULL S 2594 91 1991 Surface Mine Foreman RICHARD L. STULL SC 2680 09 2009 Surface Construction Supervisor ROBERT L. STULL SC 1902 98 1998 Surface Construction Supervisor RAY A. STULL JR. SC 1901 98 1998 Surface Construction Supervisor CARTER W. STUMP S 3573 02 2002 Surface Mine Foreman CARTER W. STUMP S 1004 A 2001 Asst. Surface Mine Foreman CARTER W. STUMP SC1567 96 1996 Surface Construction Supervisor FREDERICK E. STUMP S 59 78 1978 Surface Mine Foreman TERRY L. STUMP S 4754 10 2010 Surface Mine Foreman JOSEPH STURGELL S 4308 07 2007 Surface Mine Foreman ANTHONY W. STURGILL S 3555 01 2001 Surface Mine Foreman JAMES D. STURGILL S 1355 80 1980 Surface Mine Foreman JEREMY R. STURGILL S 5055 12 2012 Surface Mine Foreman JOHNNY S. STURGILL S 2419 90 1990 Surface Mine Foreman JOSHUA C. STURGILL S 5053 12 2012 Surface Mine Foreman SCOTT D. STURGILL S 5533 18 2018 Surface Mine Foreman JODY L. STUTLER S 4291 07 2007 Surface Mine Foreman WILLIAM T. STUTLER S 842 79 1979 Surface Mine Foreman DAVID ANTHONY STYCRS S 1217 79 1979 Surface Mine Foreman WILLIAM A STYLES SM 969 79 1979 Surface Mine Foreman JOHN A. SUBYAK S 2939 93 1993 Surface Mine Foreman ALEN W. SUESLI SC621 83 1983 Surface Construction Supervisor TENNIS J. SUGG S 4412 08 2008 Surface Mine Foreman JAMES W. SUITS SC 2520 07 2007 Surface Construction Supervisor JAMES W. SUITS, JR. SC 2521 07 2007 Surface Construction Supervisor JASON J. SULLIVAN S 4137 06 2006 Surface Mine Foreman JASON L. SULLIVAN S 4031 06 2006 Surface Mine Foreman KENNETH R. SULLIVAN S 2917 93 1993 Surface Mine Foreman TERRENCE M. SULLIVAN S 2361 88 1988 Surface Mine Foreman DELBERT A. SUMMERS SC1724 97 1997 Surface Construction Supervisor DENZIL A. SUMMERS SC1426 95 1995 Surface Construction Supervisor RANDY SUMMERS SC 2638 08 2008 Surface Construction Supervisor ROBERT L. SUMMERS SC 2148 01 2001 Surface Construction Supervisor STEPHEN D. SUMMERS S 2335 88 1988 Surface Mine Foreman DAVIS A. SUMNER SC016 82 1982 Surface Construction Supervisor DANNY W. SUMPTER S 5475 90 1990 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE STEPHEN E. SUPKO SC449 83 1983 Surface Construction Supervisor ROGER D. SURFACE SC 2407 06 2006 Surface Construction Supervisor GARY P. SURRATT SC 2134 01 2001 Surface Construction Supervisor BLAINE V. SUTHERLAND SS 54 73 1973 Shaft & Slope Examiner Foreman BLAINE V. SUTHERLAND SC646 83 1983 Surface Construction Supervisor Cornel D. Sutherland S 2309 88 1988 Surface Mine Foreman WILLARD SUTHERLAND S 1362 80 1980 Surface Mine Foreman BRIAN D. SUTPHIN S 3725 03 2003 Surface Mine Foreman WILLIAM B. SUTTLE S 1270 80 1980 Surface Mine Foreman HERBERT SUTTLES S 4309 07 2007 Surface Mine Foreman FRANK SUTTLES JR. S 2444 89 1989 Surface Mine Foreman CHARLES K. SUTTON SS 7 03 2003 Shaft and Slope Superintendent CHARLES K. SUTTON SS 350 03 2003 Shaft & Slope Examiner Foreman CHARLES R. SUTTON S 2087 85 1985 Surface Mine Foreman IRELAND B. SUTTON S 1830 84 1984 Surface Mine Foreman IRELAND B. SUTTON SC254 82 1982 Surface Construction Supervisor WELLINGTON JOE SUTTON S 642 79 1979 Surface Mine Foreman GEORGE T. SVHMIDLE S 987 79 1979 Surface Mine Foreman JASON R. SVONAVEC S 5030 12 2012 Surface Mine Foreman EDWARD SWAFFORD SC015 82 1982 Surface Construction Supervisor DANIEL T. SWAIN SC 2955 13 2013 Surface Construction Supervisor DANIEL C. SWAN SC 2678 09 2009 Surface Construction Supervisor GILBERT "JD" SWANEY SC037 82 1982 Surface Construction Supervisor RONALD L. SWANIGER, SR. SS 10477 1977 Shaft & Slope Examiner Foreman ERIC SWANSON SC 2716 10 2010 Surface Construction Supervisor RONALD D. SWEARINGEN SC283 83 1983 Surface Construction Supervisor DAVID SWEENEY S 1520 81 1981 Surface Mine Foreman WILLIAM L. SWEENEY SS303 97 1997 Shaft & Slope Examiner Foreman RICHARD P. SWEENEY, JR. S 2735 91 1991 Surface Mine Foreman ROBERT E. SWEITZER SS 8 03 2003 Shaft and Slope Superintendent ROBERT E. SWEITZER SS 349 03 2003 Shaft & Slope Examiner Foreman JOHN C. SWENGEL SC232 82 1982 Surface Construction Supervisor CHRISTOPHER P. SWIGER SC1665 96 0 Surface Construction Supervisor CHRISTOPHER P. SWIGER SC1665 96 1996 Surface Construction Supervisor DAVID L. SWIGER SS 20681 1981 Shaft & Slope Examiner Foreman HERBERT K. SWIGER S 734 79 1979 Surface Mine Foreman JAMES A. SWIGER S 3325 99 1999 Surface Mine Foreman ROBERT K. SWIGER SS 18080 1980 Shaft & Slope Examiner Foreman JOSEPH H. SWIM SC1317 95 1995 Surface Construction Supervisor JOHN SWINN SC998 92 1992 Surface Construction Supervisor ALLEN K. SWISHER SS 43 73 1973 Shaft & Slope Examiner Foreman THOMAS A. SWISHER SS 325 99 1999 Shaft & Slope Examiner Foreman RODNEY A. SWITALSKI SC908 90 1990 Surface Construction Supervisor BILLY R. SWORD S 5497 18 2018 Surface Mine Foreman JAMES L. SWORD S 2259 88 1988 Surface Mine Foreman JAMES C. SYKES S 3359 99 1999 Surface Mine Foreman DANIEL K. SYNER SC 2833 11 2011 Surface Construction Supervisor JUNIOR SYPOLT S 1061 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JOE SYSLO S 818 79 1979 Surface Mine Foreman JOHN M. SZOKE S 320 79 1979 Surface Mine Foreman JOHN M. SZOKE, II S 1583 82 1982 Surface Mine Foreman GARY D. TABOR SC1305 95 1995 Surface Construction Supervisor ZACHARIAH E. TABOR SC 3079 17 2017 Surface Construction Supervisor ALLEN E. TACKETT S 487 79 1979 Surface Mine Foreman BARRY C. TACKETT S 2468 90 1990 Surface Mine Foreman BRADLEY A. TACKETT S 5590 19 2019 Surface Mine Foreman BRIAN A. TACKETT S 4874 11 2010 Surface Mine Foreman JAMES GORDON TACKETT S 2544 90 1990 Surface Mine Foreman STEVEN C. TACKETT S 5080 12 2012 Surface Mine Foreman JAMES T. TACKETT, JR. S 683 79 1979 Surface Mine Foreman DEWAYNE G. TACY S 2636 91 1991 Surface Mine Foreman HAROLD G. TACY S 4148 06 2006 Surface Mine Foreman JOHN TAGGART SC 2162 02 2002 Surface Construction Supervisor JOHN M. TAGGE SC1402 95 1995 Surface Construction Supervisor HARRY I. TAKA S 506 79 1979 Surface Mine Foreman CECIL R. TALBERT S 579 79 1979 Surface Mine Foreman JIMMIE G. TALBERT S 1684 82 1982 Surface Mine Foreman RONALD B. TALBERT II S 511 79 1979 Surface Mine Foreman BRIAN K. TALLAMY S 3661 03 2003 Surface Mine Foreman TERRY L. TALLMAN S 4526 08 2008 Surface Mine Foreman TERRY L. TALLMAN S 1105 A 2008 Asst. Surface Mine Foreman EDWARD LEE TANKERSLEY S 126 78 1978 Surface Mine Foreman RICHARD L. TANKERSLEY S 122 78 1978 Surface Mine Foreman GARY E. TANNER S 4439 08 2008 Surface Mine Foreman JOHN H. TANNER S 3588 02 2002 Surface Mine Foreman ROY D. TANNER S 3640 02 2002 Surface Mine Foreman ROY D. TANNER SC 2185 02 2002 Surface Construction Supervisor ROY ROGER TANNER S 1495 81 1981 Surface Mine Foreman DELMAS TASKER SC 501 83 1983 Surface Construction Supervisor KEMBLE D. TATE SC342 83 1983 Surface Construction Supervisor MONTE TATE SC1532 96 1996 Surface Construction Supervisor WENDELL TATE SC 2079 01 2001 Surface Construction Supervisor KEMBLE D. TATE JR SC 2974 14 2014 Surface Construction Supervisor BILL S. TAYLOR SC 529 83 1983 Surface Construction Supervisor BRYAN D. TAYLOR S 2993 94 1994 Surface Mine Foreman CARL B. TAYLOR SC284 83 1983 Surface Construction Supervisor CHARLES W. TAYLOR S 4465 08 2008 Surface Mine Foreman DOUGLAS L. TAYLOR SC 2109 01 2001 Surface Construction Supervisor EDDIE D. TAYLOR S 4162 06 2006 Surface Mine Foreman EDWARD H. TAYLOR SC658 83 1983 Surface Construction Supervisor ESTEL NORMAN TAYLOR S 160 78 1978 Surface Mine Foreman FRED A. TAYLOR S 2063 85 1985 Surface Mine Foreman FREDERICK J. TAYLOR S 2630 91 1991 Surface Mine Foreman GREGORY L. TAYLOR S 3825 04 2004 Surface Mine Foreman JACKIE L. TAYLOR S 1645 82 1982 Surface Mine Foreman JACKIE R. TAYLOR S 5325 15 2015 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JAMES F. TAYLOR S 3756 04 2004 Surface Mine Foreman JAMES W. TAYLOR S 2391 89 1989 Surface Mine Foreman JOHN B. TAYLOR SC800 85 1985 Surface Construction Supervisor JOHN S. TAYLOR S 628 79 1979 Surface Mine Foreman LARRY E. TAYLOR SC606 83 1983 Surface Construction Supervisor LARRY R. TAYLOR SC1046 92 0 Surface Construction Supervisor LELAND G. TAYLOR S 2892 93 1993 Surface Mine Foreman MARK L. TAYLOR S 5647 20 2020 Surface Mine Foreman MICHAEL E. TAYLOR S 4249 06 2006 Surface Mine Foreman MITCHELL A. TAYLOR SC 2774 11 2011 Surface Construction Supervisor PATRICK TAYLOR SC 2192 02 2002 Surface Construction Supervisor PRENTISS E. TAYLOR SM2067 85 1985 Surface Mine Foreman RANDALL D. TAYLOR S 3332 99 1999 Surface Mine Foreman RUSSELL L. TAYLOR SC 2713 10 2010 Surface Construction Supervisor SAMMY L. TAYLOR S 2593 91 1991 Surface Mine Foreman SEAN D. TAYLOR S 1529 81 1981 Surface Mine Foreman WILLIAM D. TAYLOR S 3935 05 2005 Surface Mine Foreman RICHARD C. TAYLOR, JR. SC260 82 1982 Surface Construction Supervisor JAMES R. TEATERS SC 2939 13 2013 Surface Construction Supervisor DAVID G. TEBERG SC675 83 1983 Surface Construction Supervisor DAVID M. TEBERG SC861 86 1986 Surface Construction Supervisor JEFF TEGI SC 2934 13 2013 Surface Construction Supervisor RONALD A. TELENKO SC 541 83 1983 Surface Construction Supervisor STEVEN A. TEMOFF SC 2718 10 2010 Surface Construction Supervisor MICHAEL J. TEMPLE SS308 97 1997 Shaft & Slope Examiner Foreman JOHN S TENNANT SS 322 98 1998 Shaft & Slope Examiner Foreman MARK A. TENNANT SC 2470 06 2006 Surface Construction Supervisor ROBERT TENNANT SC1236 95 1995 Surface Construction Supervisor DAVID M. TENNEY S 3930 05 2005 Surface Mine Foreman JACKIE E. TERHERST S 3072 95 1995 Surface Mine Foreman CLARENCE TERRY SC1019 92 1992 Surface Construction Supervisor DAVID TERRY SC1025 92 1992 Surface Construction Supervisor DEXTER L. TERRY S 3685 03 2003 Surface Mine Foreman DWAYNE C. TERRY S 5357 16 2016 Surface Mine Foreman SCOTT A. TERRY S 5543 18 2018 Surface Mine Foreman WILLIAM V. TERRY SC1648 96 1996 Surface Construction Supervisor CHESTER E. TESTEMENT SC1470 95 0 Surface Construction Supervisor ARTHUR TESTERMAN SC863 86 1986 Surface Construction Supervisor MARK A. TETRICK SC1806 97 1997 Surface Construction Supervisor JESSE E. TETRICK, JR. SS 86 08 2008 Shaft and Slope Superintendent DONALD E. TEWELL SC046 82 1982 Surface Construction Supervisor BILLY G. THACKER S 4731 10 2010 Surface Mine Foreman CHRISTOPHER K. THACKER S 4626 09 2009 Surface Mine Foreman HENRY A. THACKER S 2931 93 1993 Surface Mine Foreman JIMMY L. THACKER S 4730 10 2010 Surface Mine Foreman MARTY THACKER S 5363 16 2016 Surface Mine Foreman MICHAEL S. THACKER S 4641 09 2009 Surface Mine Foreman RICHARD L. THACKER SS 17579 1979 Shaft & Slope Examiner Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE RONALD THACKER SC 2489 06 2006 Surface Construction Supervisor TIMOTHY D. THACKER S 4631 09 2009 Surface Mine Foreman WILLIAM R. THACKER SC888 87 0 Surface Construction Supervisor CODY J. THARP SS 134 20 2020 Shaft and Slope Superintendent HARRY R. THARP SS 11077 1977 Shaft & Slope Examiner Foreman RONNIE D. THARPE SC1301 95 1995 Surface Construction Supervisor PERRY L. THATCHER S 4110 06 2006 Surface Mine Foreman ELIZABETH A. THEWES S 2 78 1978 Surface Mine Foreman FRED A. THIEN S 3017 94 1994 Surface Mine Foreman HARRY R. THMOPSON SC211 82 1982 Surface Construction Supervisor ADAM W. THOMAS SC 2697 09 2009 Surface Construction Supervisor BENJAMIN F. THOMAS S 148 78 1978 Surface Mine Foreman BOB G. THOMAS SC1145 94 1994 Surface Construction Supervisor EDWARD R. THOMAS SC399 83 1983 Surface Construction Supervisor FREDDIE F. THOMAS S 417 79 1979 Surface Mine Foreman GENE R. THOMAS SC 2366 05 2005 Surface Construction Supervisor GEORGE THOMAS SC 3015 15 2015 Surface Construction Supervisor GERALD W. THOMAS SC 2320 05 2005 Surface Construction Supervisor HOWARD D. THOMAS S 4628 09 2009 Surface Mine Foreman JACKIE K. THOMAS S 1377 80 1980 Surface Mine Foreman JOHN L. THOMAS SC1321 95 1995 Surface Construction Supervisor JOHN W. THOMAS SC 2696 09 2009 Surface Construction Supervisor JOSHUA A. THOMAS SC 3043 16 2016 Surface Construction Supervisor KEITH D. THOMAS S 2479 90 1990 Surface Mine Foreman KENNETH J. THOMAS SC 2334 05 2005 Surface Construction Supervisor KEVIN D. THOMAS S 2796 92 1992 Surface Mine Foreman LESLIE G. THOMAS S 2688 91 1991 Surface Mine Foreman RALPH L. THOMAS SS 25589 1989 Shaft & Slope Examiner Foreman ROBERT F. THOMAS S 1266 80 1980 Surface Mine Foreman RODNEY M. THOMAS SC 2012 99 1999 Surface Construction Supervisor VINCENT C. THOMAS SC 2391 05 2005 Surface Construction Supervisor WARREN D. THOMAS SC282 83 1983 Surface Construction Supervisor WILLIAM J. THOMAS S 2110 86 1986 Surface Mine Foreman RICHARD THOMAS, JR. S 4890 11 2011 Surface Mine Foreman ROBERT L. THOMAS, JR. S 5538 18 2018 Surface Mine Foreman DONALD H. THOME SC 2188 02 2002 Surface Construction Supervisor ALLEN D. THOMPSON SC045 82 1982 Surface Construction Supervisor ANDREW J. THOMPSON SC1253 95 1995 Surface Construction Supervisor BILLY G. THOMPSON SC1254 95 1995 Surface Construction Supervisor CHARLES A. THOMPSON S 3071 95 1995 Surface Mine Foreman GARY G. THOMPSON SC 2435 06 2006 Surface Construction Supervisor HARRY R. THOMPSON S 1608 82 1982 Surface Mine Foreman JACK Z. THOMPSON SC1368 95 0 Surface Construction Supervisor JACK Z. THOMPSON SC1368 95 1995 Surface Construction Supervisor JEFFREY A. THOMPSON SC 2823 11 2011 Surface Construction Supervisor JIMMY THOMPSON S 2729 91 1991 Surface Mine Foreman JOHNNIE C. THOMPSON S 2833 92 1992 Surface Mine Foreman JUSTIN F. THOMPSON S 4323 07 2007 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE KENNETH B. THOMPSON SC1830 97 1997 Surface Construction Supervisor LAWRENCE I. THOMPSON S 4736 10 2010 Surface Mine Foreman MICHAEL K. THOMPSON S 3604 02 2002 Surface Mine Foreman MICHAEL T. THOMPSON S 3399 00 2000 Surface Mine Foreman NICHOLAS THOMPSON SC1471 95 1995 Surface Construction Supervisor RICHARD D. THOMPSON S 194 85 1985 Surface Mine Foreman RICHARD D. THOMPSON SC677 83 1983 Surface Construction Supervisor ROBERT H. THOMPSON S 3472 01 2001 Surface Mine Foreman ROBERT J. THOMPSON SC1255 95 1995 Surface Construction Supervisor ROGER L. THOMPSON SC1827 97 1997 Surface Construction Supervisor SCOTT E. THOMPSON SC1262 95 1995 Surface Construction Supervisor STANLEY C. THOMPSON S 5323 15 2015 Surface Mine Foreman STEVE THOMPSON S 2077 85 1985 Surface Mine Foreman TALMAGE S. THOMPSON S 5154 13 2013 Surface Mine Foreman TARLIS R. THOMPSON S 5039 12 2012 Surface Mine Foreman TERRENCE E. THOMPSON S 4770 10 2010 Surface Mine Foreman TERRY A. THOMPSON S 5554 18 2018 Surface Mine Foreman WARREN L. THOMPSON S 46 78 1978 Surface Mine Foreman GARY G. THOMPSON II SC 2073 00 2000 Surface Construction Supervisor WILLARD THOMPSON JR. S 1039 79 1979 Surface Mine Foreman MICHAEL K. THOMPSON, II S 1008 A 2001 Asst. Surface Mine Foreman DONALD ALLEN THORN 35901 36 1990 Asst. Surface Mine Foreman RESSIE J. THORN SC 2851 12 2012 Surface Construction Supervisor ROBERT JUNIOR THORN S 831 79 1979 Surface Mine Foreman ADDIE W. THORNBERRY S 2765 92 1992 Surface Mine Foreman BARRY L. THORNBERRY SC 2390 05 2005 Surface Construction Supervisor GEORGE M. THORNSBURY S 4919 11 2011 Surface Mine Foreman JACK R. THORNSBURY S 3658 03 2003 Surface Mine Foreman MATTHEW M. THORNSBURY S 5620 19 2019 Surface Mine Foreman WILLARD V. THORNSBURY S 3333 99 1999 Surface Mine Foreman DOUGLAS L. THORNTON S 901 79 1979 Surface Mine Foreman JAMES R. THRASHER SS 70 75 1975 Shaft & Slope Examiner Foreman JAMES R. THRASHER SC645 83 1983 Surface Construction Supervisor CHARLES T. THRUSH S 374 79 1979 Surface Mine Foreman RODNEY D. THURMOND S 3375 00 2000 Surface Mine Foreman DENNIS D. THURSBY S 3878 05 2005 Surface Mine Foreman KAROL G. TIBBS SC 2655 08 2008 Surface Construction Supervisor JACK RAY TICHINEL S 1938 84 1984 Surface Mine Foreman ROGER L. TICHINEL S 1937 84 1984 Surface Mine Foreman RODNEY W. TICHINEY S 1923 84 1984 Surface Mine Foreman DAVID CHARLES TICHNELL S 2491 90 1990 Surface Mine Foreman JERRY MARTIN TICHNELL S 1782 83 1983 Surface Mine Foreman PHILLIP DANIEL TICHNELL S 541 79 1979 Surface Mine Foreman ANDREW T. TILLER S 2742 91 1991 Surface Mine Foreman RUSSELL D. TILLER, JR. S 3727 03 2003 Surface Mine Foreman ELMER B. TILLEY SC 2196 03 2003 Surface Construction Supervisor TERRY D. TILLEY SC 2775 11 2011 Surface Construction Supervisor WILLIAM R. TILLEY S 3321 98 1998 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILLIAM R. TILLEY SC1205 95 1995 Surface Construction Supervisor BRAD R. TIMBERLAKE SC 2643 08 2008 Surface Construction Supervisor GARY S. TINCHER S 3515 01 2001 Surface Mine Foreman LLOYD L. TINCHER S 915 79 1979 Surface Mine Foreman RANDY K. TINCHER S 4165 06 2006 Surface Mine Foreman RAY E. TINCHER SC492 83 1983 Surface Construction Supervisor RONALD A. TINCHER SC 2883 12 2012 Surface Construction Supervisor RONALD J. TINCHER S 3762 04 2004 Surface Mine Foreman RONALD J. TINCHER S 1025 A 2003 Asst. Surface Mine Foreman GARY D. TINNEL S 1302 80 1980 Surface Mine Foreman JAMES F. TINNEL S 4429 08 2008 Surface Mine Foreman JAY E. TINNEL S 2856 92 1992 Surface Mine Foreman BENNIE TIPTON SC 2832 11 2011 Surface Construction Supervisor BENNIE S. TIPTON SC 2856 12 2012 Surface Construction Supervisor VERNON W. TIPTON S 3327 99 1999 Surface Mine Foreman SAMUEL A. TIPTON II S 3665 03 2003 Surface Mine Foreman JOHN E. TITCHNELL S 71 78 1978 Surface Mine Foreman TERRY L. TITCHNELL SC 3083 18 2018 Surface Construction Supervisor CLIFFORD D. TITCHNELL, JR. S 2094 86 1986 Surface Mine Foreman BRIAN E. TITLOW SC 2200 03 2003 Surface Construction Supervisor JAMES E. TITUS SC 1940 98 1998 Surface Construction Supervisor JOHN E. TITUS S 2597 91 1991 Surface Mine Foreman TIMOTHY WAYNE TITUS S 294 79 1979 Surface Mine Foreman WILLIAM S. TOBIN SC014 82 1982 Surface Construction Supervisor CURTIS G. TODD S 3101 95 1995 Surface Mine Foreman JOHN A. TODD S 1235 80 1980 Surface Mine Foreman STEPHEN D. TODD S 2883 93 1993 Surface Mine Foreman WILLIAM C. TODD SC691 83 1983 Surface Construction Supervisor ERIC M. TODICH SC 3011 15 2015 Surface Construction Supervisor ERIC M. TODICH RBS 6 19 2019 Raised Bore/Blind Drilling Super. HAROLD D. TOLBERT SC842 86 1986 Surface Construction Supervisor BRADLEY C. TOLER SC1294 95 1995 Surface Construction Supervisor JERRY L. TOLER SC 2096 01 2001 Surface Construction Supervisor KENNETH R TOLER S 3268 98 1998 Surface Mine Foreman MARCIAL K. TOLER S 2956 93 1993 Surface Mine Foreman RANDALL TOLER S 353 79 1979 Surface Mine Foreman ROGER P. TOLER SC 2095 01 2001 Surface Construction Supervisor RONALD G. TOLER S 1381 80 1980 Surface Mine Foreman TERRY A. TOLER SC1295 95 1995 Surface Construction Supervisor THOMAS TOLER S 4640 09 2009 Surface Mine Foreman THOMAS G. TOLER SC830 86 1986 Surface Construction Supervisor TIMOTHY TOLER S 2404 89 1989 Surface Mine Foreman WILLIAM D. TOLER S 2721 91 1991 Surface Mine Foreman HOMER G. TOLLER JR. S 679 79 1979 Surface Mine Foreman MICHAEL A. TOLLEY S 2802 92 1992 Surface Mine Foreman TERRY W. TOLLEY S 1999 85 1985 Surface Mine Foreman CARLOS W. TOLLIVER SC1282 95 1995 Surface Construction Supervisor CLARENCE W. TOLLIVER SC1326 95 1995 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE CURT J. TOLLIVER S 4053 06 2006 Surface Mine Foreman JIM TOLLIVER S 5617 19 2019 Surface Mine Foreman JUSTIN Q. TOLLIVER S 5623 19 2019 Surface Mine Foreman MICHAEL L. TOLLIVER S 4932 11 2011 Surface Mine Foreman CARL N. TOMBLIN S 1766 83 1983 Surface Mine Foreman GARRETT K. TOMBLIN S 4457 08 2008 Surface Mine Foreman GARRETT K. TOMBLIN S 1167 A 2011 Asst. Surface Mine Foreman GORDON S. TOMBLIN S 4959 11 2011 Surface Mine Foreman JASON L. TOMBLIN S 4845 10 2010 Surface Mine Foreman OTIS M. TOMBLIN SC1203 95 1995 Surface Construction Supervisor SHERMAN TOMBLIN S 416 79 1979 Surface Mine Foreman SHERMAN TOMBLIN SC1490 96 1996 Surface Construction Supervisor TERRY D. TOMBLIN S 3668 03 2003 Surface Mine Foreman DAVID B. TOMCZYK SC1107 94 1994 Surface Construction Supervisor EDWARD L. TONEY SC 2333 05 2005 Surface Construction Supervisor GARY G. TONEY SC1376 95 1995 Surface Construction Supervisor STEPHEN W. TONEY SC 2042 00 2000 Surface Construction Supervisor WESTON L. TONEY S 5596 19 2019 Surface Mine Foreman PAUL E. TONKERY JR. S 853 79 1979 Surface Mine Foreman CARL R. TOOTHMAN SC 2479 06 2006 Surface Construction Supervisor DENZIL L. TOOTHMAN SC1216 95 1995 Surface Construction Supervisor GARY L. TOOTHMAN SS 22084 1984 Shaft & Slope Examiner Foreman RODNEY O. TOOTHMAN SC 2738 10 2010 Surface Construction Supervisor ROGER E. TOOTHMAN SC1425 95 1995 Surface Construction Supervisor VERNON L. TOOTHMAN SC339 83 1983 Surface Construction Supervisor STANLEY TOOTHMAN JR. SC 2338 05 2005 Surface Construction Supervisor TONY W. TOTH S 4083 06 2006 Surface Mine Foreman LlOYD L. TRACEY S 2008 85 1985 Surface Mine Foreman LLOYD P. TRAIL S 748 79 1979 Surface Mine Foreman LAWRENCE J. TRAINOR S 2703 91 1991 Surface Mine Foreman ARLEY W. TRASHER SC495 83 1983 Surface Construction Supervisor KEVIN D. TREADWAY SC 2133 01 2001 Surface Construction Supervisor LEON P. TREADWAY SC1101 94 1994 Surface Construction Supervisor WILLIAM C. TREADWAY, JR. S 3427 00 2000 Surface Mine Foreman CARL J. TRENT SC300 83 1983 Surface Construction Supervisor DAVID A. TRENT S 2153 87 1987 Surface Mine Foreman DENNIE L. TRENT SS 330 99 1999 Shaft & Slope Examiner Foreman EARL D. TRENT S 2451 89 1989 Surface Mine Foreman EARNEST L. TRENT SC815 86 1986 Surface Construction Supervisor HARRY C. TRENT S 2442 89 1989 Surface Mine Foreman HASSEL M. TRENT S 211 78 1978 Surface Mine Foreman JEFFREY M. TRENT S1707 82 1982 Surface Mine Foreman MICHAEL D. TRENT SC 2912 13 2013 Surface Construction Supervisor RAYMOND D. TRENT SC 2605 08 2008 Surface Construction Supervisor GLEN H. TRENT JR. S 129 78 1978 Surface Mine Foreman ALFRED P. TREVISON S 1114 79 1979 Surface Mine Foreman JAMES R. TRICHEL S 1605 82 1982 Surface Mine Foreman DOUGLAS R. TRIMBLE S 5362 16 2016 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE WILLIAM J. TRIMBLE SC965 91 0 Surface Construction Supervisor WILLIAM J. TRIMBLE SC0965 91 1991 Surface Construction Supervisor ELIJAH TRIPLETT S 2204 87 1987 Surface Mine Foreman JASON M. TRIPLETT S 4680 09 2009 Surface Mine Foreman JASON M. TRIPLETT S 1109 A 2008 Asst. Surface Mine Foreman LONNIE L. TRIPLETT SC979 92 1992 Surface Construction Supervisor OTIS P. TRIPLETT S 2709 91 1991 Surface Mine Foreman RICKY D. TRIPLETT S 2166 87 1987 Surface Mine Foreman ROBERT D. TRIPLETT SC980 92 1992 Surface Construction Supervisor ROY L. TRIPLETT SM2035 85 1985 Surface Mine Foreman SENNETT C. TRIPLETT SM2037 85 1985 Surface Mine Foreman TEDDY L. TRIPLETT S 2914 93 1993 Surface Mine Foreman TOMMY W. TRIPLETT S 3314 98 1998 Surface Mine Foreman DENNIS O. TRIVETTE SC1748 97 1997 Surface Construction Supervisor JAMES M. TRIVOLETTE S 2476 90 1990 Surface Mine Foreman LARRY TROFY SC 2229 03 2003 Surface Construction Supervisor TERRY L. TROUT S 2811 92 1992 Surface Mine Foreman EDUARDO Z. TRUJILLO SC 2970 13 2013 Surface Construction Supervisor RAS L. TRULL SC128 82 1982 Surface Construction Supervisor JONATHAN D. TRUMAN S 4492 08 2008 Surface Mine Foreman DANNY P. TRUMP S 4064 06 2006 Surface Mine Foreman DAVID W. TRUMP S 5416 17 2017 Surface Mine Foreman STANLEY TRUMP S 2156 87 1987 Surface Mine Foreman TEDDY R. TRUMP SC418 83 1983 Surface Construction Supervisor WESLEY TRUMP S 4117 06 2006 Surface Mine Foreman JERRY R. TRUMP, JR. S 3766 04 2004 Surface Mine Foreman RICHARD PAUL TRZASKOMA S 535 79 1979 Surface Mine Foreman JAMES L. TUCKER S 1241 80 1980 Surface Mine Foreman JERRY L. TUCKER SC236 82 1982 Surface Construction Supervisor JERRY L. TUCKER SC 3108 19 2019 Surface Construction Supervisor JERRY L. TUCKER SC 3109 19 2019 Surface Construction Supervisor JOHN A. TUCKER SS 116 18 2018 Shaft and Slope Superintendent TERRY TUCKER SC1736 97 1997 Surface Construction Supervisor THOMAS L. TUCKER II S 5546 18 2018 Surface Mine Foreman LAWRENCE L. TUCKWILLER 91679 1979 Surface Mine Foreman TEDDY F. TUE S 524 79 1979 Surface Mine Foreman LESTER D. TUELL IV SS 110 12 2012 Shaft and Slope Superintendent LESTER D. TUELL IV SS 386 12 2012 Shaft & Slope Examiner Foreman DONALD C. TULLY S 373 79 1979 Surface Mine Foreman JOSEPH K. TURBISH SC1159 94 1994 Surface Construction Supervisor JOSEPH C. TURLEY, III S 1199 79 1979 Surface Mine Foreman WILLIAM C. TURLEY, JR. SC382 83 1983 Surface Construction Supervisor DANIEL J. TURNER SS 13 03 2003 Shaft and Slope Superintendent DANIEL J. TURNER SS 346 03 2003 Shaft & Slope Examiner Foreman DAVID A. TURNER S 2576 90 1990 Surface Mine Foreman JOHN A. TURNER S 822 79 1979 Surface Mine Foreman JOSHUA J. TURNER S 5297 15 2015 Surface Mine Foreman JUSTIN R. TURNER S 5296 15 2015 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE KENT A. TURNER S 201 78 1978 Surface Mine Foreman PHILLIP W. TURNER SC 578 83 1983 Surface Construction Supervisor RICHARD E. TURNER S 5008 11 2011 Surface Mine Foreman RYAN A. TURNER S 5243 14 2014 Surface Mine Foreman FRED W. TURNLEY S 285 79 1979 Surface Mine Foreman RONALD W. TUSTIN SC1690 97 1997 Surface Construction Supervisor ANTHONY TUTTLE S 5353 16 2016 Surface Mine Foreman SAMUEL A. TYGRETT S 3800 04 2004 Surface Mine Foreman SCOTT A. TYGRETT S 4930 11 2011 Surface Mine Foreman ARCHIE W. TYLER SC849 86 1986 Surface Construction Supervisor JOHNNIE G. TYLER S 1053 79 1979 Surface Mine Foreman ROCKY L. TYLER S 4978 11 2011 Surface Mine Foreman FRANK W. TYO SC 2199 03 2003 Surface Construction Supervisor LEWIS K. TYREE S 2015 85 1985 Surface Mine Foreman HERBERT W. TYSON SC1497 96 1996 Surface Construction Supervisor JOSHUA E. UHL S 4997 11 2011 Surface Mine Foreman WILLIAM ULISKY SC460 83 1983 Surface Construction Supervisor FRED A. ULUM S 801 79 1979 Surface Mine Foreman TIMOTHY D. UMBEL SC 2316 05 2005 Surface Construction Supervisor ROBERT J. UMBLE, JR. S 1683 82 1982 Surface Mine Foreman ANTHONY L. UNDERWOOD S 1575 82 1982 Surface Mine Foreman BERNARD A. UNDERWOOD S 4971 11 2011 Surface Mine Foreman DEVON L. UNDERWOOD S 4592 09 2009 Surface Mine Foreman DUSTIN S. UNDERWOOD S 4952 11 2011 Surface Mine Foreman ELMER W. UNDERWOOD S 146 78 1978 Surface Mine Foreman GARY E. UNDERWOOD S 2137 86 1986 Surface Mine Foreman JOHN T. UNDERWOOD S 1471 81 1981 Surface Mine Foreman LARRY B. UNDERWOOD S 91 78 1978 Surface Mine Foreman MICHAEL D. UNDERWOOD S 2388 89 1989 Surface Mine Foreman RICHARD F. UNDERWOOD S 795 79 1979 Surface Mine Foreman SAMUEL A. UNDERWOOD S 1714 82 1982 Surface Mine Foreman WILLIAM A. UNDERWOOD S 4297 07 2007 Surface Mine Foreman WOODRUM C. UPHOLD SC396 83 1983 Surface Construction Supervisor DONALD L. UPOLE, JR. SC1599 96 1996 Surface Construction Supervisor ROBIN D. URICK SC 1903 98 1998 Surface Construction Supervisor MICHAEL A. URIOSTE SC 2031 00 2000 Surface Construction Supervisor RALPH J. URSO S 933 79 1979 Surface Mine Foreman CHARLES D. UTT S 2755 92 1992 Surface Mine Foreman DEE J. UTT SC1666 96 1996 Surface Construction Supervisor CHARLES A. VACCARO S 2217 87 1987 Surface Mine Foreman JAMES G. VADNAL S 2558 90 1990 Surface Mine Foreman BOYD L. VANCE S 344 95 1995 Surface Mine Foreman BRUCE L. VANCE S 3585 02 2001 Surface Mine Foreman CHARLES R. VANCE SC 2397 05 2005 Surface Construction Supervisor DANNY E. VANCE S 305 79 1979 Surface Mine Foreman DAVID R. VANCE S 3061 95 1995 Surface Mine Foreman DERICK D. VANCE SS 135 20 2020 Shaft and Slope Superintendent DUSTIN C. VANCE S 5608 19 2019 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DUSTIN L. VANCE S 5471 18 2018 Surface Mine Foreman FREDERICK VANCE S 2927 93 1993 Surface Mine Foreman JERRY R. VANCE SC843 86 1986 Surface Construction Supervisor JERRY WAYNE VANCE S 1361 80 1980 Surface Mine Foreman KENNETH VANCE SC1409 95 1995 Surface Construction Supervisor LANNIE G. VANCE S 4139 06 2006 Surface Mine Foreman LAUREL O. VANCE S 1539 81 1981 Surface Mine Foreman LONNIE R. VANCE SC 2108 01 2001 Surface Construction Supervisor MICHAEL D. VANCE S 4344 07 2007 Surface Mine Foreman MICHAEL P. VANCE S 5275 15 2015 Surface Mine Foreman ROGER D. VANCE S 4877 11 2011 Surface Mine Foreman RONALD G. VANCE S 2392 89 1989 Surface Mine Foreman SCOTTIE G. VANCE S 5478 18 2018 Surface Mine Foreman TERRY J. VANCE S 1567 82 1982 Surface Mine Foreman TERRY L. VANCE S 1221 79 1979 Surface Mine Foreman WILLIAM D. VANCE S 4365 07 2007 Surface Mine Foreman CURTISS VANCE III S 3507 01 2001 Surface Mine Foreman EVERETT L. VANCE, JR S 5175 13 2013 Surface Mine Foreman LEWIS G. VANCE, JR. S3231 25 1997 Asst. Surface Mine Foreman KENNETH A. VANDAL SC409 83 1983 Surface Construction Supervisor GLEN D. VANDALL SC1531 96 1996 Surface Construction Supervisor MARVIN E. VANDALL SC1121 94 1994 Surface Construction Supervisor RUSSELL F. VANDALL SC1708 97 1997 Surface Construction Supervisor EDWIN P. VANDERPAS SS 93 76 1976 Shaft & Slope Examiner Foreman DONNIE F. VANDEVANDER S 2048 85 1985 Surface Mine Foreman CHARLES M VANDYKE SC 1890 98 1998 Surface Construction Supervisor ELMER C. VANDYKE SS 20080 1980 Shaft & Slope Examiner Foreman SCOTT J. VANGILDER SC 3082 18 2018 Surface Construction Supervisor DANNY M. VANHOOSE S 3400 00 2000 Surface Mine Foreman STEVIE L. VANHOOSE S 4615 09 2009 Surface Mine Foreman CHARLES D. VANHORN S 2305 88 1988 Surface Mine Foreman CHARLES D. VANHORN SC1837 97 1997 Surface Construction Supervisor ROBERT R. VANHORN SC 2173 02 2002 Surface Construction Supervisor ALLEN R. VANHORNE,II S 2552 90 1990 Surface Mine Foreman FRANKLIN L. VANNOY S 5052 12 2012 Surface Mine Foreman MASON G. VANOVER S 5576 19 2019 Surface Mine Foreman RICHARD C. VANOVER S 3900 05 2005 Surface Mine Foreman RICHARD C. VANOVER S 1052 A 2004 Asst. Surface Mine Foreman MIKE P. VARGO SC700 83 1983 Surface Construction Supervisor DAVID T. VARNER S 1185 79 1979 Surface Mine Foreman RODNEY A. VARNER SC 2982 14 2014 Surface Construction Supervisor CHARLES R. VARNEY S 5038 12 2012 Surface Mine Foreman DANNY R. VARNEY S 1526 81 1981 Surface Mine Foreman GARY L. VARNEY S 1371 80 1980 Surface Mine Foreman NOAH G. VARNEY S 3532 01 2001 Surface Mine Foreman CHARLES VARNEY, JR. S 1054 79 1979 Surface Mine Foreman JAMES ANDERSON VASS S 413 79 1979 Surface Mine Foreman CHRISTOPHER M. VAUGHAN S 5577 19 2019 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JAMES E. VAUGHN SS 88 76 1976 Shaft & Slope Examiner Foreman JAMES E. VAUGHN SC634 83 1983 Surface Construction Supervisor RAYMOND E. VAUGHN SS 39091 1991 Shaft & Slope Examiner Foreman STEPHEN L. VAUGHN SC 2327 05 2005 Surface Construction Supervisor WADE D. VAUGHN SC 2812 11 2011 Surface Construction Supervisor STONEY T. VEALEY S 4753 10 2010 Surface Mine Foreman LOUIS VEID JR. S 875 79 1979 Surface Mine Foreman DELMER STILES VENCILL S 2199 87 1987 Surface Mine Foreman ERNEST WELSEY VENCILL S 2197 87 1987 Surface Mine Foreman ARNULFO VENZOR SC 2545 07 2007 Surface Construction Supervisor MARTIN C. VENZOR SC 2548 07 2007 Surface Construction Supervisor ROBERTO C. VENZOR SC 2547 07 2007 Surface Construction Supervisor WILLIAM J. VERBOSKY S 1662 82 1982 Surface Mine Foreman ROY VERDINE S 1419 81 1981 Surface Mine Foreman ROBERT J. VERMILLION, II S 3169 96 1996 Surface Mine Foreman MARVIN E. VERNATTER S 1230 79 1979 Surface Mine Foreman JASON R. VERNO SC 2870 12 2012 Surface Construction Supervisor JOHN R. VERNO S 1726 83 1983 Surface Mine Foreman ALLEN R. VEST S 2129 86 1986 Surface Mine Foreman HOWARD W. VEST S 2245 87 1987 Surface Mine Foreman WILBUR W. VIA SC400 83 1983 Surface Construction Supervisor KYLE VIARS S 2853 92 1992 Surface Mine Foreman AARON VICKERS S 4519 08 2008 Surface Mine Foreman EDWARD E. VICKERS SC047 82 1982 Surface Construction Supervisor JOHN D. VICKERS S 3956 05 2005 Surface Mine Foreman PAUL E. VICKERS SC682 83 1983 Surface Construction Supervisor DAVID K. VIDOVICH S 3084 95 1995 Surface Mine Foreman ROBERT S. VIERS SS 275 91 1991 Shaft & Slope Examiner Foreman MICHAEL L. VIGILANTE SC807 85 1985 Surface Construction Supervisor ANDREW T. VIGLIANCO S 2971 94 1994 Surface Mine Foreman SAM D. VIGNOLI SC907 90 1990 Surface Construction Supervisor DOUGLAS E. VINCENT SC 2120 01 2001 Surface Construction Supervisor ROBERT M. VINCENT SC 2415 06 2006 Surface Construction Supervisor ROBERT L. VINCENT JR. SC1843 97 1997 Surface Construction Supervisor DELMER LYNN VINCILL S 2200 87 1987 Surface Mine Foreman HENRY M. VINES S 1409 81 1981 Surface Mine Foreman MICHAEL F. VINES S 5150 13 2013 Surface Mine Foreman MICHAEL F. VINES S 1169 A 2012 Asst. Surface Mine Foreman JAMES VINGINO SC1834 97 1997 Surface Construction Supervisor ANTHONY M. VINGLAS SC199 82 1982 Surface Construction Supervisor HARRY VINSON S 1565 82 1982 Surface Mine Foreman JAMES R. VINSON S 2169 87 1987 Surface Mine Foreman JAMES W. VINSON S 2466 90 1990 Surface Mine Foreman MOSS VINSON S 1055 A 2004 Asst. Surface Mine Foreman MOSS VINSON III S 3834 04 2004 Surface Mine Foreman GARY T. VIOLA SS 18380 1980 Shaft & Slope Examiner Foreman DANIEL VIR SC1063 93 1993 Surface Construction Supervisor MICHAEL D. VIRA S 2438 90 1990 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE FORREST A. VIRDEN, JR. SC1167 94 1994 Surface Construction Supervisor DONALD D. VISSAT S 2825 92 1992 Surface Mine Foreman RAYMOND J. VITORI SC010 82 1982 Surface Construction Supervisor TRAVIS VLIET SS 121 19 2019 Shaft and Slope Superintendent CHAD J. VOGEL SC 2746 10 2010 Surface Construction Supervisor RICHARD A. VOGEL S 4809 10 2010 Surface Mine Foreman FRANK A. WADDELL S 3554 01 2001 Surface Mine Foreman JAMES G. WADDELL S 3811 04 2004 Surface Mine Foreman WILLIAM W. WADDELL S 2132 86 1986 Surface Mine Foreman BERNARD WADE S 412 79 1979 Surface Mine Foreman CARL E. WADE SC693 83 1983 Surface Construction Supervisor CHARLES W. WADE S 1169 79 1979 Surface Mine Foreman MICHAEL G. WADE SC 1924 98 1998 Surface Construction Supervisor ORMAN K. WADE SC963 91 1991 Surface Construction Supervisor RONALD E. WADE S 2058 85 1985 Surface Mine Foreman WESLEY C. WADE S 2795 92 1992 Surface Mine Foreman RONNIE WAGES SC1011 92 1992 Surface Construction Supervisor GROVER L. WAGGONER S 1191 79 1979 Surface Mine Foreman DARREN J. WAGNER SC 2251 04 2004 Surface Construction Supervisor LELAND WAGNER SC 3024 15 2015 Surface Construction Supervisor STEVEN M. WAGNER S 4167 06 2006 Surface Mine Foreman CHARLES R. WAINE II S 3738 03 2003 Surface Mine Foreman JIMMY D. WAKEFIELD SC 3155 20 2020 Surface Construction Supervisor JAMES C. WALDECK S 1047 79 1979 Surface Mine Foreman MICHAEL L. WALK S 1546 81 1981 Surface Mine Foreman AARON K. WALKER S 4934 11 2011 Surface Mine Foreman DAVID E. WALKER SC 2369 05 2005 Surface Construction Supervisor DELMAS H. WALKER SC596 83 1983 Surface Construction Supervisor DONALD E. WALKER SC1152 94 1994 Surface Construction Supervisor JAMES W. WALKER SS 8676 1976 Shaft & Slope Examiner Foreman JAMEY P. WALKER SC 2044 00 2000 Surface Construction Supervisor JIMMY E. WALKER S 2626 91 1991 Surface Mine Foreman JOHNNY WALKER S 267 79 1979 Surface Mine Foreman LARRY A. WALKER S 4947 11 2011 Surface Mine Foreman MARK D. WALKER S 5341 15 2015 Surface Mine Foreman MICHAEL L. WALKER SC1776 97 1997 Surface Construction Supervisor NATHAN A. WALKER S 5142 13 2013 Surface Mine Foreman ROBERT E. WALKER SC1153 94 1994 Surface Construction Supervisor TERRANCE L. WALKER S 5343 16 2016 Surface Mine Foreman TERRY L. WALKER SC 2035 00 2000 Surface Construction Supervisor TIMOTHY B. WALKER S 1599 82 1982 Surface Mine Foreman TODD WALKER SC 2466 06 2006 Surface Construction Supervisor VERNON C. WALKER S 1602 82 1982 Surface Mine Foreman WENDELL W. WALKER S 2801 92 1992 Surface Mine Foreman DAVID E. WALKER, JR. SC1151 94 1994 Surface Construction Supervisor JEFFREY W. WALKUP SC1472 95 1995 Surface Construction Supervisor DENZIL M. WALL SC1709 97 1997 Surface Construction Supervisor CHARLES WALLACE S 4768 10 2010 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE OLIVER T. WALLACE S 4696 09 2009 Surface Mine Foreman RODERICK R. WALLACE S 3053 95 1995 Surface Mine Foreman CHARLES L. WALLEN S 5420 17 2017 Surface Mine Foreman DANNY L. WALLEN S 3306 98 1998 Surface Mine Foreman DONALD J. WALLIS, JR. SC 2700 09 2009 Surface Construction Supervisor HERMAN D. WALLS S 1719 82 1982 Surface Mine Foreman JAMES R. WALLS S 1751 83 1983 Surface Mine Foreman MICHAEL WALLS S 4739 10 2010 Surface Mine Foreman THOMAS H. WALLS , JR. S 3182 96 1996 Surface Mine Foreman BERNIE WALLS, II S 3520 01 2001 Surface Mine Foreman EDDIE G. WALSH S 4287 07 2007 Surface Mine Foreman ROBERT L. WALTERS S 902 79 1979 Surface Mine Foreman LONNY R. WALTERS, JR. SS 367 05 2005 Shaft & Slope Examiner Foreman KENNETH F. WALTHER SC 2476 06 2006 Surface Construction Supervisor ALFRED B. WALTON S 2646 91 1991 Surface Mine Foreman BERMAN E. WALTON S 565 79 1979 Surface Mine Foreman LONNIE C. WALTON SC 2157 02 2002 Surface Construction Supervisor JIMMY WAMPLER S 3195 97 1997 Surface Mine Foreman JOHN L. WAMSLEY S 479 79 1979 Surface Mine Foreman RANDALL L WAMSLEY S 3275 98 1998 Surface Mine Foreman WARREN D. WAMSLEY JR. S 3135 96 1996 Surface Mine Foreman THOMAS W. WARBURTON S 53 78 1978 Surface Mine Foreman BILLY M. WARD S 5111 12 2012 Surface Mine Foreman CHARLES E. WARD S 1553 81 1981 Surface Mine Foreman DAVID B. WARD SC 2724 10 2010 Surface Construction Supervisor DAVID WAYNE WARD S 2194 87 1987 Surface Mine Foreman DELFORD WARD S 2845 92 1992 Surface Mine Foreman DON C. WARD S 3192 96 1996 Surface Mine Foreman DONALD E. WARD S 1216 79 1979 Surface Mine Foreman GARY WARD SC 1885 98 1998 Surface Construction Supervisor GORDON WARD SC1537 96 1996 Surface Construction Supervisor JAMES A. WARD S 4010 05 2005 Surface Mine Foreman JAMES A. WARD S 1026 A 2003 Asst. Surface Mine Foreman JAMES E. WARD SC999 92 1992 Surface Construction Supervisor JAMIE L. WARD SC 2325 05 2005 Surface Construction Supervisor KEITH A. WARD S 4049 06 2006 Surface Mine Foreman LARRY G. WARD SC792 85 1985 Surface Construction Supervisor LARRY P. WARD SC 2811 11 2011 Surface Construction Supervisor RICHARD WARD SC 2160 02 2002 Surface Construction Supervisor ROBERT L. WARD SC801 85 1985 Surface Construction Supervisor ROGER L. WARD SC1091 93 1993 Surface Construction Supervisor TIMOTHY S. WARD S 5411 17 2017 Surface Mine Foreman BRIAN E. WARDEN S 3733 03 2003 Surface Mine Foreman ELLIOTT L. WARDEN SC208 82 1982 Surface Construction Supervisor WILBUR G. WARDEN SC207 82 1982 Surface Construction Supervisor LARRY L. WARDRIP S 4534 08 2008 Surface Mine Foreman JAY R. WARDWELL S 4039 06 2006 Surface Mine Foreman MICHAEL W. WARDWELL S 4018 05 2005 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ALDEN O. WARE SS 4273 1973 Shaft & Slope Examiner Foreman JOHNNY D. WARE SC389 83 1983 Surface Construction Supervisor PATRICK F. WARE S 2885 93 1993 Surface Mine Foreman ROBERT W. WARGO SC459 83 1983 Surface Construction Supervisor DOUGLAS H. WARNER S 4940 11 2011 Surface Mine Foreman ROGER B. WARNICK SC 3135 19 2019 Surface Construction Supervisor DAVID A. WARREN S 1522 81 1981 Surface Mine Foreman JOSEPH L. WARREN S 2691 91 1991 Surface Mine Foreman SCOTTY D. WARREN S 3679 03 2003 Surface Mine Foreman JOHN WARREN JR. SC649 83 1983 Surface Construction Supervisor LADES R. WARRINER SC095 82 1982 Surface Construction Supervisor RUSSELL R. WARRING S 2764 92 1992 Surface Mine Foreman WILLIAM A. WARRIX S 4566 08 2008 Surface Mine Foreman PAUL WASHINGTON S 4898 11 2011 Surface Mine Foreman THOMAS W. WASHINGTON S 4491 08 2008 Surface Mine Foreman WILLIAM E. WATERS S 3618 02 2002 Surface Mine Foreman WILLIAM E. WATERS S 1018 A 2002 Asst. Surface Mine Foreman WILLIAM E. WATERS SC1027 92 1992 Surface Construction Supervisor GREGORY L. WATKINS SC338 83 1983 Surface Construction Supervisor MICHEAL E. WATKINS SC 2131 01 2001 Surface Construction Supervisor CLEMENCE R. WATOWSKI SC981 92 1992 Surface Construction Supervisor FRANKLIN N. WATSON SS 25287 1987 Shaft & Slope Examiner Foreman JERRY D. WATSON S 5044 12 2012 Surface Mine Foreman JIMMY W. WATSON SC 2867 12 2012 Surface Construction Supervisor RICHARD L. WATSON SC1161 94 1994 Surface Construction Supervisor AARON P. WATTS S 1141 A 2010 Asst. Surface Mine Foreman BRIAN M. WATTS SC 3143 20 2020 Surface Construction Supervisor COLUMBUS C. WATTS S 1384 80 1980 Surface Mine Foreman DARRELL R. WATTS S 2924 93 1993 Surface Mine Foreman HAROLD M. WATTS SC 1970 98 1998 Surface Construction Supervisor JAKE T. WATTS S 272 79 1979 Surface Mine Foreman JOHN H. WATTS S 3319 98 1998 Surface Mine Foreman JOHN H. WATTS SC1523 96 1996 Surface Construction Supervisor KYLE WATTS S 1135 79 1979 Surface Mine Foreman THURMAN A. WATTS S 4781 10 2010 Surface Mine Foreman TYRONE WATTS S 5334 15 2015 Surface Mine Foreman JAKE T. WATTS, JR. S 2071 85 1985 Surface Mine Foreman FRED W. WAUGH S 357 79 1979 Surface Mine Foreman ROBIE T. WAUGH S 3468 01 2001 Surface Mine Foreman FRED W. WAUGH, JR. SC573 83 1983 Surface Construction Supervisor JERRY E. WAY S 2658 91 1991 Surface Mine Foreman BILLY D. WAYBRIGHT SC1434 95 1995 Surface Construction Supervisor CALVIN WAYBRIGHT SC1272 95 1995 Surface Construction Supervisor FRANKIE L. WAYMAN S 4219 06 2006 Surface Mine Foreman FRANKLIN D. WAYMAN S 2459 89 1989 Surface Mine Foreman DANIEL L. WAYNE S 2020 85 1985 Surface Mine Foreman ROBERT W. WAYT III SC 3034 16 2016 Surface Construction Supervisor THEODORE WEASENFORTH S 660 79 1979 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DAVID A. WEAVER SC 2284 04 2004 Surface Construction Supervisor PERRY W. WEAVER S 1308 80 1980 Surface Mine Foreman ADAM A. WEBB SS 381 08 2008 Shaft & Slope Examiner Foreman ANTHONY R. WEBB SC1591 96 1996 Surface Construction Supervisor BILLIE RAY WEBB S 13 78 1978 Surface Mine Foreman GEORGE D. WEBB S 2723 91 1991 Surface Mine Foreman HERMAN E. WEBB SC1440 95 1995 Surface Construction Supervisor JAMES M. WEBB S 4440 08 2008 Surface Mine Foreman JAMES M. WEBB SC 2595 08 2008 Surface Construction Supervisor JAMES R. WEBB SC 2558 07 2007 Surface Construction Supervisor JEFFREY L. WEBB S 1705 82 1982 Surface Mine Foreman KENNETH R. WEBB S 5203 13 2013 Surface Mine Foreman LARRY D. WEBB SC 2826 11 2011 Surface Construction Supervisor LAWRENCE W. WEBB SC674 83 1983 Surface Construction Supervisor PETE WEBB S 2033 85 1985 Surface Mine Foreman ROY S. WEBB S 4977 11 2011 Surface Mine Foreman ROY S. WEBB S 1155 A 2010 Asst. Surface Mine Foreman SHANNON E. WEBB S 3670 03 2003 Surface Mine Foreman TOMMY D. WEBB S 968 79 1979 Surface Mine Foreman EDDIE WEBBER, JR. S 4839 10 2010 Surface Mine Foreman BRENT A. WEBER S 3055 95 1995 Surface Mine Foreman PHILIP H. WEBER S 1050 79 1979 Surface Mine Foreman DONALD J. WEDDINGTON S 3833 04 2004 Surface Mine Foreman JACKIE J. WEEKLEY S 5287 15 2015 Surface Mine Foreman JAMES WEEKLY S 5321 15 2015 Surface Mine Foreman CHAD J. WEEMS S 5133 13 2013 Surface Mine Foreman HERMAN G. WEESE S 649 79 1979 Surface Mine Foreman JAMES D. WEESE SC 2789 11 2011 Surface Construction Supervisor RANDY L. WEESE S 1933 84 1984 Surface Mine Foreman ROBERT WEHR S 4915 11 2011 Surface Mine Foreman CALVIN M. WEIKEL SC216 82 1982 Surface Construction Supervisor ALLEN DARL WEIMER S 1880 84 1984 Surface Mine Foreman FRED S. WEIR, JR. SC 1359 95 1995 Surface Construction Supervisor AUSTIN D. WEIS SC 3163 20 2020 Surface Construction Supervisor EARLEN B. WEIS SC073 82 1982 Surface Construction Supervisor JAMES THOMAS WELCH S 2242 87 1987 Surface Mine Foreman PETE L. WELCH S 4095 06 2006 Surface Mine Foreman THOMAS P. WELCH S 1212 79 1979 Surface Mine Foreman MILTON CARRELL WELLING S 1924 84 1984 Surface Mine Foreman DENNIS K. WELLMAN S 2752 92 1992 Surface Mine Foreman TRAVIS S. WELLMAN S 2536 90 1990 Surface Mine Foreman CHRISTOPHER D. WELLS S 4082 06 2006 Surface Mine Foreman CHRISTOPHER L. WELLS SC 2731 10 2010 Surface Construction Supervisor DANA R. WELLS SC1527 96 1996 Surface Construction Supervisor DANIEL WELLS SC1235 95 1995 Surface Construction Supervisor DOUGLAS K. WELLS S 3439 01 2001 Surface Mine Foreman DOUGLAS K. WELLS SC 2113 01 2001 Surface Construction Supervisor GARY L. WELLS SC 2733 10 2010 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE HOWARD J. WELLS S 1010 79 1979 Surface Mine Foreman JAMES L. WELLS S 2743 92 1992 Surface Mine Foreman JOHN C. WELLS SC1436 95 1995 Surface Construction Supervisor LYLE WELLS SC1374 95 1995 Surface Construction Supervisor MELVIN D. WELLS S 2484 90 1990 Surface Mine Foreman SHANNON L. WELLS SC1375 95 1995 Surface Construction Supervisor THOMAS R. WELLS SC 2389 05 2005 Surface Construction Supervisor TIMOTHY H. WELLS S 4445 08 2008 Surface Mine Foreman LARRY J. WENGERD SC1600 96 1996 Surface Construction Supervisor GEORGE E. WENZEL SC448 83 1983 Surface Construction Supervisor RAYMOND L. WESNEY S 2295 88 1988 Surface Mine Foreman JOHB F. WEST S 499 79 1979 Surface Mine Foreman KENNETH WEST S 2385 89 1989 Surface Mine Foreman RAYMOND C. WEST S 5539 18 2018 Surface Mine Foreman REX D. WEST SC 3058 17 2017 Surface Construction Supervisor RUFUS W. WEST SC 2135 01 2001 Surface Construction Supervisor MAY WEST, JR. S 1927 84 1984 Surface Mine Foreman DARRELL O. WESTFALL S 4623 09 2009 Surface Mine Foreman MARK A. WESTFALL SC1017 92 1992 Surface Construction Supervisor MICHAEL A. WESTFALL S 3475 01 2001 Surface Mine Foreman MICHAEL D. WESTFALL SC 748 84 1984 Surface Construction Supervisor RICHARD L. WESTFALL SC742 84 1984 Surface Construction Supervisor THOMAS L. WESTFALL, JR. SC1016 92 1992 Surface Construction Supervisor THOMAS L. WESTFALL, SR. SC1015 92 1992 Surface Construction Supervisor MARY WESTFALL-HOLBROOK SC1018 92 1992 Surface Construction Supervisor JAMES L. WESTMORELAND S 3434 00 2000 Surface Mine Foreman HOWARD T. WETER S 172 78 1978 Surface Mine Foreman JOHN R. WHARTON SC1548 96 1996 Surface Construction Supervisor TONY L. WHEATLEY S 5114 12 2012 Surface Mine Foreman WILLARD C. WHEATLEY S 888 79 1979 Surface Mine Foreman STEVEN D. WHEATLEY II S 4868 10 2010 Surface Mine Foreman JAMES R. WHEELER SC 2927 13 2013 Surface Construction Supervisor THOMAS WHEELER, JR. SS 94 10 2010 Shaft and Slope Superintendent ROGER L. WHETZEL, II S 3594 02 2002 Surface Mine Foreman RONALD WHIEHAIR 168124 1948 Clay Mine Foreman ELLIS G. WHIGHAM S 3049 95 1995 Surface Mine Foreman RONALD K. WHIPKEY S 2674 91 1991 Surface Mine Foreman KARL D. WHITAKER SC982 92 1992 Surface Construction Supervisor BENCIL V. WHITE S 171 78 1978 Surface Mine Foreman CHESTER A. WHITE SC579 83 1983 Surface Construction Supervisor CLARENCE M. WHITE S 3940 05 2005 Surface Mine Foreman CLARENCE M. WHITE S 1056 A 2004 Asst. Surface Mine Foreman DAN B. WHITE S 5451 17 2017 Surface Mine Foreman DONALD WHITE SS 353 04 2004 Shaft & Slope Examiner Foreman DONALD G. WHITE S 1554 81 1981 Surface Mine Foreman DONALD W. WHITE SC1682 96 1996 Surface Construction Supervisor ERNEST E. WHITE RBS 1 19 2019 Raised Bore/Blind Drilling Super. GREGORY W. WHITE SC 2923 13 2013 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE HERMAN D. WHITE S 1025 79 1979 Surface Mine Foreman JAMES D. WHITE S 3516 01 2001 Surface Mine Foreman JAMES E. WHITE SC1424 95 1995 Surface Construction Supervisor JAMES R. WHITE S 2238 87 1987 Surface Mine Foreman JAMES R. WHITE S 308 79 1979 Surface Mine Foreman JEFFERY A. WHITE S 3295 98 1998 Surface Mine Foreman JEFFREY D. WHITE S 1582 15 1982 Asst. Surface Mine Foreman JOHN A. WHITE SC097 82 1982 Surface Construction Supervisor JOHN P. WHITE S 2030 85 1985 Surface Mine Foreman JOHN W. WHITE SC 2930 13 2013 Surface Construction Supervisor KENNETH G. WHITE SC 2929 13 2013 Surface Construction Supervisor LESTER L. WHITE S 2910 93 1993 Surface Mine Foreman MATTHEW L. WHITE S 5337 15 2015 Surface Mine Foreman MICHAEL E. WHITE S 5640 20 2020 Surface Mine Foreman RICHARD V. WHITE S 93 78 1978 Surface Mine Foreman RICHARD V. WHITE S 5542 18 2018 Surface Mine Foreman RICK WHITE SC1683 96 1996 Surface Construction Supervisor RICKY M. WHITE S 4055 06 2006 Surface Mine Foreman ROY A. WHITE S 3334 99 1999 Surface Mine Foreman STEVEN A. WHITE SC 3022 15 2015 Surface Construction Supervisor THOMAS M. WHITE S 1458 81 1981 Surface Mine Foreman THOMAS R. WHITE S 2080 85 1985 Surface Mine Foreman ROBERT H. WHITE II S 3180 96 1996 Surface Mine Foreman JAMES W. WHITE JR. S 235 78 1978 Surface Mine Foreman DAVID R. WHITELEY SS 83 07 2007 Shaft and Slope Superintendent MICHAEL B. WHITESIDE S 2186 87 1987 Surface Mine Foreman GLENN WHITFIELD SC1803 97 1997 Surface Construction Supervisor ERIC W. WHITLATCH SC 2078 01 2001 Surface Construction Supervisor JENNINGS WHITLEY S 4080 06 2006 Surface Mine Foreman ALBERT M. WHITLOCK S 2812 92 1992 Surface Mine Foreman CECIL C. WHITT SC1044 92 1992 Surface Construction Supervisor JAMES D. WHITT S 4081 06 2006 Surface Mine Foreman JOHN E. WHITT S 5547 18 2018 Surface Mine Foreman LAWSON WHITT S 2655 91 1991 Surface Mine Foreman WILLIAM O. WHITT SC 1978 99 1999 Surface Construction Supervisor CECIL C. WHITT III SC1844 97 1997 Surface Construction Supervisor CECIL C. WHITT, III SC 2790 11 2011 Surface Construction Supervisor CHAD W. WHITTAKER S 4772 10 2010 Surface Mine Foreman DENNIS J. WHITTAKER SC064 82 1982 Surface Construction Supervisor DEREK A. WHITTEN S 3184 96 1996 Surface Mine Foreman RONALD G. WHITTINGTON S 798 79 1979 Surface Mine Foreman RONALD G. WHITTINGTON SC175 82 1982 Surface Construction Supervisor LARRY E. WHYTE SS 29795 1995 Shaft & Slope Examiner Foreman STANLEY D. WICKHAM SC1103 94 1994 Surface Construction Supervisor DARL J. WICKMAN SC 3112 19 2019 Surface Construction Supervisor DOUGLAS B. WIGGINS SS 79 07 2007 Shaft and Slope Superintendent EDWIN J. WILBER, SR. S 1858 84 1984 Surface Mine Foreman DWAYNE E. WILBURN SC 2727 10 2010 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MICHAEL L. WILBURN SC 2574 08 2008 Surface Construction Supervisor MERRILL C. WILCHER SC 2460 06 2006 Surface Construction Supervisor DOUGLAS C. WILCOX S 498 79 1979 Surface Mine Foreman DAVID R. WILES SC 1898 98 1998 Surface Construction Supervisor NOEL V. WILES SC1448 95 1995 Surface Construction Supervisor HARLEY J. WILFONG S 1862 84 1984 Surface Mine Foreman PATRIC M. WILFONG S 5245 14 2014 Surface Mine Foreman SCOTT T. WILHELM SC 3031 16 2016 Surface Construction Supervisor BERYL A. WILKINSON S 640 79 1979 Surface Mine Foreman HAROLD THOMAS WILKINSON S 328 79 1979 Surface Mine Foreman JERRY B. WILKINSON SC1751 97 1997 Surface Construction Supervisor JERRY B WILKINSON SC 1751 97 1997 Surface Construction Supervisor JOHN C. WILKINSON S 4787 10 2010 Surface Mine Foreman GEORGE R. WILLARD SC 2258 04 2004 Surface Construction Supervisor WILLIAM A. WILLARD SC1477 95 1995 Surface Construction Supervisor CARL L. WILLEY SC493 83 1983 Surface Construction Supervisor AARON D. WILLIAMS S 5274 15 2015 Surface Mine Foreman CHARLES E. WILLIAMS SC692 83 1983 Surface Construction Supervisor CHRISTOPHER WILLIAMS S 1120 A 2008 Asst. Surface Mine Foreman DALE F. WILLIAMS S3235 97 1997 Surface Mine Foreman DANNY J. WILLIAMS SC 2360 05 2005 Surface Construction Supervisor DONALD W. WILLIAMS S 2857 92 1992 Surface Mine Foreman DURK G. WILLIAMS SS 24586 1986 Shaft & Slope Examiner Foreman DWIGHT D. WILLIAMS S 3156 96 1996 Surface Mine Foreman GARY R. WILLIAMS SC934 91 0 Surface Construction Supervisor GEORGE WILLIAMS SC291 83 1983 Surface Construction Supervisor JAMES WILLIAMS S 3895 05 2005 Surface Mine Foreman JAMES C. WILLIAMS SC 2332 05 2005 Surface Construction Supervisor JAMES D. WILLIAMS S 4056 06 2006 Surface Mine Foreman JERRY W. WILLIAMS SC 1871 98 1998 Surface Construction Supervisor JESTON O. WILLIAMS S 1005 79 1979 Surface Mine Foreman JOEY P. WILLIAMS S 3540 01 2001 Surface Mine Foreman JOHN G. WILLIAMS SC447 83 1983 Surface Construction Supervisor LARRY L. WILLIAMS SC 2361 05 2005 Surface Construction Supervisor MARK A. WILLIAMS SC1075 93 1993 Surface Construction Supervisor MARK A. WILLIAMS SC 3095 18 2018 Surface Construction Supervisor MARSHALL D. WILLIAMS S 3172 96 1996 Surface Mine Foreman MITCHELL R. WILLIAMS S 4595 09 2009 Surface Mine Foreman OLIVER WILLIAMS SC880 87 1987 Surface Construction Supervisor RICHARD L. WILLIAMS SC 2692 09 2009 Surface Construction Supervisor RILEY WILLIAMS S 2068 85 1985 Surface Mine Foreman ROBERT L. WILLIAMS SC223 82 1982 Surface Construction Supervisor ROBERT S. WILLIAMS SC057 82 1982 Surface Construction Supervisor RODNEY N. WILLIAMS S 4191 06 2006 Surface Mine Foreman RONNIE WILLIAMS S 4116 06 2006 Surface Mine Foreman ROY D. WILLIAMS SC 2246 04 2004 Surface Construction Supervisor SHAWN D. WILLIAMS SS 323 98 1998 Shaft & Slope Examiner Foreman STEPHEN E. WILLIAMS SC 2101 01 2001 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE STEPHEN J. WILLIAMS SC876 86 1986 Surface Construction Supervisor TIMOTHY R. WILLIAMS SC 3059 17 2017 Surface Construction Supervisor WILLIAM H. WILLIAMS S 2556 90 1990 Surface Mine Foreman WILLIAM L. WILLIAMS S 2385 89 1989 Surface Mine Foreman CARLOS A. WILLIAMS, JR. SC416 83 1983 Surface Construction Supervisor DOUGLAS C. WILLIAMS, JR. SC1473 95 1995 Surface Construction Supervisor FRANKLIN WILLIAMS, JR. S 3261 98 1998 Surface Mine Foreman RONNIE G. WILLIAMS, JR. S 3980 05 2005 Surface Mine Foreman RONNIE G. WILLIAMS, JR. S 1054 A 2004 Asst. Surface Mine Foreman WILLIAM WILLIAMS, JR. SC058 82 1982 Surface Construction Supervisor CLARK WILLIAMSON S 3121 95 1995 Surface Mine Foreman DAVID L. WILLIAMSON S 2937 93 1993 Surface Mine Foreman DONALD D. WILLIAMSON S 2588 90 1990 Surface Mine Foreman DONALD G. WILLIAMSON SS 19580 1980 Shaft & Slope Examiner Foreman DONALD G. WILLIAMSON SC326 83 1983 Surface Construction Supervisor ELIJAH WILLIAMSON S 4047 06 2006 Surface Mine Foreman FRED R. WILLIAMSON SS 64 74 1974 Shaft & Slope Examiner Foreman GLENN M. WILLIAMSON SC330 83 1983 Surface Construction Supervisor JACK W. WILLIAMSON SC329 83 1983 Surface Construction Supervisor JAMES E. WILLIAMSON S 1641 82 1982 Surface Mine Foreman JAMES R. WILLIAMSON SC322 83 1983 Surface Construction Supervisor JASON D. WILLIAMSON S 5616 19 2019 Surface Mine Foreman JOHN F. WILLIAMSON S 2190 87 1987 Surface Mine Foreman LESLIE WILLIAMSON SC1172 94 1994 Surface Construction Supervisor MICHAEL WILLIAMSON S 4939 11 2011 Surface Mine Foreman NATHAN J. WILLIAMSON SC 2831 11 2011 Surface Construction Supervisor RICHARD H. WILLIAMSON SC 2486 06 2006 Surface Construction Supervisor ROY L. WILLIAMSON SS 55 73 1973 Shaft & Slope Examiner Foreman ROY L. WILLIAMSON SC651 83 1983 Surface Construction Supervisor ROY M. WILLIAMSON S 2799 92 1992 Surface Mine Foreman STEPHEN C. WILLIAMSON S 5346 16 2016 Surface Mine Foreman TIMOTHY W. WILLIAMSON SS 29695 1995 Shaft & Slope Examiner Foreman BRENT A. WILLIS SC 2138 01 2001 Surface Construction Supervisor HERCY L. WILLIS SS306 97 1997 Shaft & Slope Examiner Foreman JOHN HARDIN WILLIS S 3578 02 2002 Surface Mine Foreman CHARLES J. WILLIS, JR. S 4552 08 2008 Surface Mine Foreman TERRY E. WILLIS, JR. S 2676 91 1991 Surface Mine Foreman JOHN W. WILLS S 1431 81 1981 Surface Mine Foreman LLOYD R. WILLS S 4292 07 2007 Surface Mine Foreman RONALD A. WILLS S2618 91 1991 Surface Mine Foreman SIDNEY D. WILLS S 3317 98 1998 Surface Mine Foreman CLIFFORD LEO WILMOTH S 632 79 1979 Surface Mine Foreman CHRISTOPHER R. WILSON S 5555 18 2018 Surface Mine Foreman DANIEL R. WILSON S 3799 04 2004 Surface Mine Foreman FRANK C. WILSON S 205 78 1978 Surface Mine Foreman GARY M. WILSON S 815 79 1979 Surface Mine Foreman GEORGE R. WILSON S 1702 82 1982 Surface Mine Foreman HARLAN N. WILSON S 2418 89 1989 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JIMMY D. WILSON SC 2488 06 2006 Surface Construction Supervisor RUSSELL D. WILSON SC1808 97 1997 Surface Construction Supervisor TENNIS S. WILSON S 3774 04 2004 Surface Mine Foreman TERRY D. WILSON SC 1950 98 1998 Surface Construction Supervisor TIMOTHY L. WILSON SC 1916 98 1998 Surface Construction Supervisor WAYNE D. WILSON S 2684 91 1991 Surface Mine Foreman WENDELL G. WILSON S 2243 87 1987 Surface Mine Foreman WILLIAM E. WILSON C-04 83 1983 Clay Mine Foreman JOHNNY E. WILSON JR S 5205 13 2013 Surface Mine Foreman ALBERT M. WILSON JR. S 128 78 1978 Surface Mine Foreman LYMAN V. WILSON, JR SS 21482 1982 Shaft & Slope Examiner Foreman LYMAN V. WILSON, JR SC640 83 1983 Surface Construction Supervisor ARVILLE P. WILT S 1238 80 1980 Surface Mine Foreman DAVID L. WILT S 2508 90 1990 Surface Mine Foreman DAVID L. WILT SC1829 97 1997 Surface Construction Supervisor JAMES R. WILT S 670 79 1979 Surface Mine Foreman RICHARD A. WILT S 1941 84 1984 Surface Mine Foreman ROGER P. WILT SC349 83 1983 Surface Construction Supervisor EARL D. WILT JR. S 1935 84 1984 Surface Mine Foreman CHRISTOPHER M. WIMMER S 5522 18 2018 Surface Mine Foreman STEVEN R. WINE SC 1923 98 1998 Surface Construction Supervisor DENNIS WINES, JR. SC597 83 1983 Surface Construction Supervisor CURTIS C. WINFORD S 906 79 1979 Surface Mine Foreman RICHARD A. WINFREY S 4602 09 2009 Surface Mine Foreman GEORGE W. WINGATE S 2272 88 1988 Surface Mine Foreman FREDDIE L. WINGLER S 3857 04 2004 Surface Mine Foreman TERRY L. WINIESDORFFER SC 560 83 1983 Surface Construction Supervisor HARRY G. WINKLER SC1627 96 1996 Surface Construction Supervisor MARTY S. WINNER S 3076 95 1995 Surface Mine Foreman RONNIE J. WINTERS S 4988 11 2011 Surface Mine Foreman TONEY WIREMAN S2113 86 1986 Surface Mine Foreman DONNIE R. WISE SC 2405 05 2005 Surface Construction Supervisor CHARLES A. WISEMAN S 1956 84 1984 Surface Mine Foreman JAMES W. WISEMAN S 3655 03 2003 Surface Mine Foreman ROY E. WISEMAN S 1774 83 1983 Surface Mine Foreman STEAVEN R. WISEMAN S 2773 92 1992 Surface Mine Foreman LARRY S. WISNEWSKI S 2149 87 1987 Surface Mine Foreman JAMES R. WITHROW S 611 79 1979 Surface Mine Foreman JAMES R. WITHROW, JR. S 2261 88 1988 Surface Mine Foreman CURT WOFLE SC 3006 14 2014 Surface Construction Supervisor JOE A. WOICEHOVICH S 4045 06 2006 Surface Mine Foreman CHARLES E. WOLF SC424 83 1983 Surface Construction Supervisor CARL C. WOLFE S 103 78 1978 Surface Mine Foreman DARRELL W. WOLFE S 2430 89 1989 Surface Mine Foreman HERBERT E. WOLFE S 560 79 1979 Surface Mine Foreman JAMES D. WOLFE S 1072 79 1979 Surface Mine Foreman JAMES T. WOLFE S 736 79 1979 Surface Mine Foreman JERRY D. WOLFE SC1217 95 1995 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE ROBERT K. WOLFE S2678 91 1991 Surface Mine Foreman WILLIAM D. WOLFE S 1932 84 1984 Surface Mine Foreman DALLAS L. WOLFORD SC233 82 1982 Surface Construction Supervisor HASSELL D. WOLFORD S 4543 08 2008 Surface Mine Foreman KENNETH A. WOLFORD S 4850 10 2010 Surface Mine Foreman KENNETH L. WOLFORD SC 2801 11 2011 Surface Construction Supervisor MELVIN K. WOLFORD S 4168 06 2006 Surface Mine Foreman WILLIAM H. WOLFORD S 3097 95 1995 Surface Mine Foreman JODYM W. WOLVERTON SC 2822 11 2011 Surface Construction Supervisor BRUCE G. WOOD S 3005 94 1994 Surface Mine Foreman DAVID E. WOOD S 4726 10 2010 Surface Mine Foreman DENNIS M. WOOD S 1725 83 1983 Surface Mine Foreman DENNY M. WOOD S 1524 81 1981 Surface Mine Foreman JOHN R. WOOD SC 1969 98 1998 Surface Construction Supervisor TERRY A. WOOD SC1391 95 1995 Surface Construction Supervisor CHRISTOPHER M. WOODARD S 5615 19 2019 Surface Mine Foreman JOSEPH G. WOODARD SC205 82 1982 Surface Construction Supervisor STEPHEN E. WOODARD S 5595 19 2019 Surface Mine Foreman RONALD D. WOODRUM SC 2888 12 2012 Surface Construction Supervisor CARSEL WOODS S 4245 06 2006 Surface Mine Foreman JAMES F. WOODS SC290 83 1983 Surface Construction Supervisor JAMES O. WOODS SM 1197 79 1979 Surface Mine Foreman JASON S. WOODS S 5319 15 2015 Surface Mine Foreman JOHN B. WOODS S2695 91 1991 Surface Mine Foreman JOSEPH P. WOODS S 1030 79 1979 Surface Mine Foreman PAUL D. WOODS SS 66 75 1975 Shaft & Slope Examiner Foreman ROBERT D. WOODS S 4803 10 2010 Surface Mine Foreman ROGER L. WOODY SC388 83 1983 Surface Construction Supervisor RON E. WOODY S 49 78 1978 Surface Mine Foreman RONALD E. WOODY SC442 83 1983 Surface Construction Supervisor DAVID M. WOOFTER S 1264 80 1980 Surface Mine Foreman EUGENE A. WOOLWINE S 4575 08 2008 Surface Mine Foreman EUGENE A. WOOLWINE II S 4720 09 2009 Surface Mine Foreman DAVID A. WOOTEN SC 2417 06 2006 Surface Construction Supervisor EDWARD WOOTEN S 2044 85 1985 Surface Mine Foreman ROBERT M. WOOTEN S 1499 81 1981 Surface Mine Foreman ALFRED L. WOOTEN, JR. SC 2703 09 2009 Surface Construction Supervisor ERIC W. WORDEN SC 2784 11 2011 Surface Construction Supervisor DALE A. WORKMAN SC168 82 1982 Surface Construction Supervisor DAMON E. WORKMAN S 2178 87 1987 Surface Mine Foreman DENNIS A. WORKMAN SC 2926 13 2013 Surface Construction Supervisor DONALD R. WORKMAN S 3158 96 1996 Surface Mine Foreman GLEN R. WORKMAN S 3297 98 1998 Surface Mine Foreman HENRY WORKMAN S2116 85 1986 Surface Mine Foreman JAMES B. WORKMAN SC 2406 06 2006 Surface Construction Supervisor JAMES R. WORKMAN S 3652 03 2003 Surface Mine Foreman KEITH A. WORKMAN S 3634 02 2002 Surface Mine Foreman MARK S. WORKMAN SC224 82 1982 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE MARK T. WORKMAN S 4311 07 2007 Surface Mine Foreman MELVIN W. WORKMAN S 3691 03 2003 Surface Mine Foreman MICHAEL D. WORKMAN S 3447 01 2001 Surface Mine Foreman MILTON D. WORKMAN S 3441 01 2001 Surface Mine Foreman NICKY L. WORKMAN S 3069 95 1995 Surface Mine Foreman PATRICK J. WORKMAN S 3144 96 1996 Surface Mine Foreman PATRICK J. WORKMAN SC1439 95 1995 Surface Construction Supervisor RICKY A. WORKMAN S 5198 13 2013 Surface Mine Foreman RICKY L. WORKMAN S 1975 84 1984 Surface Mine Foreman STEPHEN R. WORKMAN SC1498 96 1996 Surface Construction Supervisor TEDDY WORKMAN SC 2919 13 2013 Surface Construction Supervisor THURMAN L. WORKMAN S 1703 82 1982 Surface Mine Foreman WILLIAM J. WORKMAN S 2478 90 1990 Surface Mine Foreman DAMON E. WORKMAN, JR. SC701 83 1983 Surface Construction Supervisor JEROME L. WORKMAN, JR. S 1083 79 1979 Surface Mine Foreman RONALD R. WORKMAN, JR. SC 2049 00 2000 Surface Construction Supervisor FLOYD M. WORLEY S 1610 82 1982 Surface Mine Foreman ROBY TELDEN WORLEY S 28 78 1978 Surface Mine Foreman JOHN W. WORLEY, JR. SC 531 83 1983 Surface Construction Supervisor RICKY B. WORRIX S 5041 12 2012 Surface Mine Foreman DALE M. WOTRING S 72 78 1978 Surface Mine Foreman DALE M. WOTRING SC256 82 1982 Surface Construction Supervisor JOHN P. WRICK SS 9 03 2003 Shaft and Slope Superintendent JOHN P. WRICK SS 348 03 2003 Shaft & Slope Examiner Foreman ADAM WRIGHT S 4535 08 2008 Surface Mine Foreman BOBBY R. WRIGHT SS 16879 1979 Shaft & Slope Examiner Foreman BRADLEY F. WRIGHT S 2898 93 1993 Surface Mine Foreman DALE E. WRIGHT S 1959 84 1984 Surface Mine Foreman DAVID A. WRIGHT S 2823 92 1992 Surface Mine Foreman JIMMY D. WRIGHT S 1375 80 1980 Surface Mine Foreman KENNETH F. WRIGHT SS 14178 1978 Shaft & Slope Examiner Foreman MICHAEL A. WRIGHT S 5344 16 2016 Surface Mine Foreman PHILLIP M. WRIGHT S 5057 12 2012 Surface Mine Foreman RALPH T. WRIGHT SS 35 05 2005 Shaft and Slope Superintendent RAYMOND F. WRIGHT S 2072 85 1985 Surface Mine Foreman RICHARD D. WRIGHT SC1707 97 0 Surface Construction Supervisor RICHARD D. WRIGHT SC1707 97 1997 Surface Construction Supervisor ROBERT M. WRIGHT SC 2283 04 2004 Surface Construction Supervisor SHERMAN E. WRIGHT SS 16779 1979 Shaft & Slope Examiner Foreman SHERMAN E. WRIGHT SC638 83 1983 Surface Construction Supervisor TERRY W. WRIGHT SC1765 97 1997 Surface Construction Supervisor WILLIAM H. WRIGHT S 485 79 1979 Surface Mine Foreman GEORGE E. WRIGHT, JR. S 1390 80 1980 Surface Mine Foreman JAMES V. WRIGLEY SC234 82 1982 Surface Construction Supervisor LESLEY D. WRISTON S 3324 99 1999 Surface Mine Foreman RICHARD J. WRISTON S 2537 90 1990 Surface Mine Foreman ROBERT J. WRISTON S 224 78 1978 Surface Mine Foreman KENNETH J. WROTEN SC 3020 15 2015 Surface Construction Supervisor NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE JAMES J. WUJCIK SC108 82 1982 Surface Construction Supervisor JERRY LEON WURM S 2251 87 1987 Surface Mine Foreman JEFFERY L. WYATT SC 2152 01 2001 Surface Construction Supervisor JOHN E. WYATT SC1012 92 1992 Surface Construction Supervisor ROBERT G. WYATT SC1369 95 1995 Surface Construction Supervisor RUSSELL WYATT, JR. S 4605 09 2009 Surface Mine Foreman GERALD K. WYER SC688 83 1983 Surface Construction Supervisor CHRISTOPHER L. WYGAL S 4226 06 2006 Surface Mine Foreman ERNEST M. WYGAL S 4489 08 2008 Surface Mine Foreman JOHN F. WYNNE S 68 78 1978 Surface Mine Foreman GRANT E. WYRE SC 2757 10 2010 Surface Construction Supervisor GERALD P. YACOVIELLO S 937 79 1979 Surface Mine Foreman MICHAEL J. YANERO S 848 79 1979 Surface Mine Foreman ROBERT L. YANERO SC 2345 05 2005 Surface Construction Supervisor DANIEL E. YATES S 5609 19 2019 Surface Mine Foreman NICHOLAS S. YATES S 4131 06 2006 Surface Mine Foreman RONALD D. YATES S 4832 10 2010 Surface Mine Foreman LUCAS D. YATES JR S 4233 06 2006 Surface Mine Foreman BERN E. YEAGER SC 555 83 1983 Surface Construction Supervisor FRED M. YEAGER S 3459 01 2001 Surface Mine Foreman MICHAEL A. YEAGER S 2542 90 1990 Surface Mine Foreman STEVE W. YEAGER S 1829 84 1984 Surface Mine Foreman STEVEN W. YEAGER S 1469 81 1981 Surface Mine Foreman STEVEN W. YEAGER SC253 82 1982 Surface Construction Supervisor BILL R. YERKEY S 1000 79 1979 Surface Mine Foreman ROBERT R. YINGLING, JR. SS 75 07 2007 Shaft and Slope Superintendent CHARLES G. YOCHYM S 817 79 1979 Surface Mine Foreman CHALMER C. YOCUM S 3036 94 1994 Surface Mine Foreman CHALMER C. YOCUM SC1586 96 1996 Surface Construction Supervisor KORY YOCUM SS 107 12 2012 Shaft and Slope Superintendent MARK D. YODEN SC1154 94 1994 Surface Construction Supervisor MICHAEL P. YODER SC 2081 01 2001 Surface Construction Supervisor MARK E. YOHO S 4257 07 2007 Surface Mine Foreman CLAUDIO T. YON SC217 82 1982 Surface Construction Supervisor CHARLES YONTS S 5238 14 2014 Surface Mine Foreman BRETT L. YOST SC1076 93 1993 Surface Construction Supervisor DANNY L. YOST SC1341 95 1995 Surface Construction Supervisor DAVID D. YOST SC1077 93 1993 Surface Construction Supervisor DENNIS L. YOST SC1078 93 1993 Surface Construction Supervisor JAMES F. YOST SC098 82 1982 Surface Construction Supervisor LARRY L. YOST SC1079 93 1993 Surface Construction Supervisor MICHAEL YOST SC1342 95 1995 Surface Construction Supervisor WILLIAM F. YOST SC765 84 1984 Surface Construction Supervisor WILLIAM R. YOST SC202 82 1982 Surface Construction Supervisor BILLY YOUNG S 4616 09 2009 Surface Mine Foreman COLT W. YOUNG SS 119 19 2019 Shaft and Slope Superintendent DANIEL R. YOUNG S 5594 19 2019 Surface Mine Foreman DAVID P. YOUNG S 2932 93 1993 Surface Mine Foreman NON-UNDERGROUND SUPERVISORY CERTIFICATIONS AS OF 12/1/2020

YEAR CERTIFICATION NAME CERT. NO. ISSUED TYPE DENNIS W. YOUNG SC366 83 1983 Surface Construction Supervisor ERIC R. YOUNG SC 3028 15 2015 Surface Construction Supervisor JAMES L. YOUNG S 2380 89 1989 Surface Mine Foreman JAMES P. YOUNG S 1556 81 1981 Surface Mine Foreman JOSEPH P. YOUNG SC287 83 1983 Surface Construction Supervisor KENNETH E. YOUNG S 3340 99 1999 Surface Mine Foreman KENNETH ROY YOUNG S 376 79 1979 Surface Mine Foreman LAWRENCE YOUNG SC 2159 02 2002 Surface Construction Supervisor ROBERT H. YOUNG SC 505 83 1983 Surface Construction Supervisor RUFUS W. YOUNG SC1137 94 1994 Surface Construction Supervisor WILLIAM A. YOUNG S 3056 95 1995 Surface Mine Foreman GEORGE O. YOUNG II S 3286 98 1998 Surface Mine Foreman HARRY W. YOUNG, JR. S 5 78 1978 Surface Mine Foreman CARL W. YOWLER SC 2440 06 2006 Surface Construction Supervisor JOSEPH F. YUTZY SC 2288 05 2005 Surface Construction Supervisor ARTHUR J. ZAHURANCIK SC 3040 16 2016 Surface Construction Supervisor DEREK V. ZAHURANCIK SC 3041 16 2016 Surface Construction Supervisor ARTHUR J. ZAHURANCIK, JR. SC 3042 16 2016 Surface Construction Supervisor ROGER ZALESKI SC1684 96 1996 Surface Construction Supervisor DAVID L. ZEIGLER S 1636 82 1982 Surface Mine Foreman CHARLES ZEMKO SC063 82 1982 Surface Construction Supervisor JOHN T. ZEMONICK SC 2227 03 2003 Surface Construction Supervisor ALAN J. ZENI SS 18580 1980 Shaft & Slope Examiner Foreman ALAN J. ZENI SC1773 97 1997 Surface Construction Supervisor ANDREW M. ZENI SC1768 97 1997 Surface Construction Supervisor JOHN T. ZENI SS 20981 1981 Shaft & Slope Examiner Foreman ROBERT L. ZERFOSS, JR. SC 2612 08 2008 Surface Construction Supervisor HENRY J. ZIELINSKI S 3030 24 1994 Asst. Surface Mine Foreman GARY S. ZILCH S 4051 06 2006 Surface Mine Foreman DENZIL F. ZIMMERMAN S 1637 82 1982 Surface Mine Foreman FRED ZIMMERMAN SC093 82 1982 Surface Construction Supervisor DARRELL R. ZINN S 386 78 1979 Surface Mine Foreman DAVID B. ZOGG SC 2779 11 2011 Surface Construction Supervisor BRADLEY S. ZORIK SC 170097 1997 Surface Construction Supervisor JEFFREY N. ZORNES S 5064 12 2012 Surface Mine Foreman RONNIE E. ZORNES S 4216 06 2006 Surface Mine Foreman RONNIE E. ZORNES SC 2358 05 2005 Surface Construction Supervisor EDWIN P. ZWIERCAN SS 151 79 1979 Shaft & Slope Examiner Foreman