Acquisition of ISO 14001 Certification (list of companies with ISO 14001 certification) (as of April 1, 2018)

■ Sumitomo Electric Industries, Ltd. ■ Overseas affiliates of Sumitomo Electric Industries, Ltd. and domestic affiliates （44 companies）

Certified Site Acquisition Date Prefecture Certified Site Acquisition Date Prefecture

Sumitomo Electric Industries, Ltd., Yokohama Works (Note 1) February 1999 Kanagawa Sumi-Pac Corporation February 1999 Taiwan Sumitomo Electric Industries, Ltd., Osaka Works (Note 2) March 2000 Osaka First Sumiden Circuits,Inc. January 2000 Philippines Sumitomo Electric Industries, Ltd., Itami Works (Note 3) September 2000 Hyogo Sumitomo Electric Interconnect Products (M) Sdn.Bhd. July 2000 Malaysia

(Note 1) Certified Affiliates located inside Yokohama Works Sumitomo Electric Wintec (Wuxi) Co., Ltd. March 2001 China - Sumitomo Electric Technical Solutions, Inc. Yokohama Works Sumitomo Electric Sintered Components (Thailand) Co., Ltd. October 2001 Thailand - Sumitomo Electric Device Innovations, Inc., Yokohama Headquarters - SEI Optifrontier Co., Ltd., Headquarters and Yokohama Works SEI Interconnect Products (Hungary), KFT. January 2002 Hungary (Note 2) Certified Affiliates located inside Osaka Works Engineered Sintered Components Company December 2002 USA - SEI Business Creates, Inc. - Sumitomo Electric Technical Solutions, Inc. Sumiden Powder Metallurgy (Wuxi) Co., Ltd. June 2003 China - J-Power Systems Corporation, Osaka Works Sumitomo Electric Sintered Components (M) Sdn.Bhd. July 2003 Malaysia - Sumiden Transmission and Distribution System Products, Ltd. Osaka Manufacturing Division - Sumitomo Electric System Solutions Co., Ltd., Keystone Powdered Metal Company August 2003 USA (Note 3) Certified Affiliates located inside Itami Works Sumitomo Electric Interconnect Products (Shanghai), Ltd. October 2003 China - A.L.M.T. Corp., Functional Products Plant - Sumiden Semiconductor Materials Co., Ltd., Itami Plant Sumitomo Electric Wintec (Malaysia) Sdn. Bhd. February 2004 Malaysia - Sumitomo (SEI) Steel Wire Corp. Sumitomo Electric Interconnect Products (Suzhou), Ltd. April 2004 China - Sumitomo Electric Hardmetal Corp. - Sumitomo Electric Sintered Alloy, Ltd., Itami Plant SUMIDEN INTERNATIONAL TRADING (SINGAPORE) PTE. LTD. April 2004 Singapore - Sumitomo Electric Technical Solutions, Inc. Itami Works PT. Sumitomo Electric Wintec Indonesia June 2004 Indonesia - Axismateria Ltd. - Sumitomo Electric Hardmetal Corp. Powder Metallurgy Innovation Center (PMIC) Sumitomo Electric Wintec (Thailand) Co., Ltd. November 2004 Thailand SUMIDEN INTERNATIONAL TRADING (SHANGHAI) CO., LTD. February 2005 China ■ Domestic affiliates of Sumitomo Electric Industries, Ltd. Zhongshan Sumiden Hybrid Products Co., Ltd. March 2005 China (27 companies and 38 sites) Sumitomo Electric Interconnect Products (Hong Kong),Ltd. March 2005 China

Certified Site Acquisition Date Prefecture Sumitomo Electric Sintered Components (Germany) GmbH April 2005 Germany SUMIDEN INTERNATIONAL TRADING (H. K. ) CO., LTD. August 2005 China J-Power Systems Corporation Works March 1997 Ibaraki Sumiden Electoronic Materials (M) Sdn. Bhd. January 2006 Malaysia Sumitomo Electric Fine Polymer, Inc. February 1998 Osaka ＰＴ. Ｓｕｍｉｄｅｎ Ｓｅｒａｓｉ Ｗｉｒｅ Ｐｒｏｄｕｃｔｓ February 2006 Indonesia Sumitomo Electric Device Innovations, Inc. Yamanashi Plant August 1998 Yamanashi JUDD Wire, Inc. April 2006 USA Kanto Works November 1998 Sumitomo (SEI) Electronic Wire, Inc A.L.M.T.(Thailand) Co., Ltd. April 2006 Thailand Hachinohe Works December 2003 Aomori Sumitomo Electric Interconnect Products (Shenzhen),Ltd. November 2006 China Sumitomo Electric Toyama Co., Ltd. December 1999 Toyama SD Vietnam Industries Limited November 2006 Vietnam Saitama Works Saitama A.L.M.T. Diamond Dies (SUZHOU) Co., Ltd. July 2007 China SEI Optifrontier Co., Ltd. Shonan Works February 2000 Kanagawa Suzhou Sumiden Electronic Materials Co,. Ltd. December 2007 China Suwa Works Nagano Sumitomo Electric Semiconductor Materials, Inc. April 2008 USA Communication Accessories Head Office and March 2000 Aichi Manufacturing Co., Ltd. Komaki Plant SUMIDEN INTERNATIONAL TRADING (THAILAND) CO., LTD. April 2008 Thailand Sumitomo Electric Photo-Electronics Components (Suzhou), Ltd. August 2008 China Sumiden Opcom, Ltd. July 2000 Kanagawa Sumitomo Electric Fine Polymer (Suzhou) Ltd. September 2008 China Sakata Works July 2000 Yamagata SEI Electronics Materials Ltd. October 2008 Taiwan Harima Works September 2000 Hyogo A.L.M.T. Corp. Chengdu Liang Hong Molybdenum Co., Ltd. March 2009 China Awaji Plant September 2003 Hyogo Sumitomo Electric Hardmetal Manufacturing (Thailand), Ltd. April 2009 Thailand Toyama Works September 2004 Toyama ＰＴ. ＳUMI INDO KABEL Tbk. May 2010 Indonesia Head Office and Sumitomo Electric Sintered Alloy, Ltd. November 2000 Okayama Okayama Plant Sumitomo Electric Interconnect Products, Inc. October 2010 USA Sumitomo Electric Interconnect Products (Vietnam), Ltd. January 2011 Vietnam Shigaraki Works December 2000 Shiga Sumitomo Electric Wintec, Inc. Sumiden Device Innovations Vietnam Co., Ltd. February 2012 Vietnam Taguchi Works January 2004 Niigata Sumitomo Electric Hartmetallfabrik GmbH. June 2013 Germany Sumiden Shoji Co., Ltd. June 2002 Osaka, etc. SEI Electronic Components (Vietnam), Ltd. August 2013 Vietnam Minakuchi Works Sumitomo Electric Printed Circuits, Inc. September 2003 Shiga SEI Interconnect Products (Thailand) Ltd. November 2013 Thailand Ishibe Works PT. Sumiden Sintered Components Indonesia March 2017 Indonesia Kiyohara Sumiden, Ltd. October 2003 Tochigi Head Office and Plant February 2004 Osaka Sunray Reinetsu Co., Ltd. Branch Office August 2006 Tokyo Hoshi Industries Co., Ltd. March 2004 Osaka Daikoku Electric Wire Co., Ltd. Kurobane Factory September 2004 Tochigi

Head Office and Sumiden Semiconductor Materials Co., Ltd. December 2004 Hyogo Kobe Plant

Gokoh Shoji Co., Ltd. December 2005 Osaka, etc. Maebashi Plant Gunma Sumiden Fine Conductors Co., Ltd. April 2006 Himejima Plant Osaka Kyushu Sumiden Seimitsu Ltd. June 2006 Saga Hokkaido Sumiden Precision Co., Ltd. July 2006 Hokkaido Sumiden Transmission and Head Office and Itami Works Hyogo December 2006 Distribution System Products, Ltd. Tokyo Office Tokyo Sumiden Sizai Kakou Co., Ltd. Head Office and Osaka Office December 2007 Osaka Sumitomo Electric Tochigi Co., Ltd. December 2007 Tochigi Tokai Sumiden Precision Co., Ltd. June 2008 Mie Misawa Trading Co., Ltd. Head Office September 2009 Osaka Acquisition of ISO 14001 Certification (list of companies with ISO 14001 certification) (as of April 1, 2018)

■ Sumitomo Wiring Systems, Ltd. ■ Overseas affiliates of Sumitomo Wiring Systems, Ltd. and domestic affiliates （46 companies）

Certified Site Acquisition Date Prefecture Certified Site Acquisition Date Prefecture

Sumitomo Wiring Systems, Ltd. SWS Group in Japan October 1997 Mie, etc. Sumitomo Electric Wiring Systems (Thailand) Ltd. December 2001 Thailand Sumidenso do Brasil Industrias Eletricas Ltda. June 2002 Brazil ※ Scope of registration International Wiring Systems(Phils.) Corporation July 2002 Philippines - Sumitomo Wiring Systems, Ltd. February 2003 Mexico - Chuetsu Sumidenso, Ltd. Conductores Technologicos de Juarez, S.A. de C.V. - Sumidenso Platech, Ltd. SEWS Romania S.R.L. July 2003 Romania - SWS East Japan, Ltd. Sumitomo Electric Wiring Systems, Inc. September 2003 USA - SWS West Japan, Ltd. SEWS-CABIND Poland Sp. Zo.o. February 2004 Poland ※ Companies included in relation to the scope above SEWS-CABIND Maroc S.A.S. February 2004 Morocco - AutoNetworks Technologies, Ltd. SUMI-HANEL Wiring Systems Co., Ltd. June 2004 Vietnam - Sumitomo Electric Information Systems Co., Ltd. - S.D. Engineering, Ltd. Huizhou Zhurun Wiring Systems Co., Ltd. June 2004 China - SEI Loginet Co., Ltd. Autosistemas de Torreon S.A. de C.V. July 2004 Mexico - Sumidenso Service, Ltd. Sumidenso Mediatech Suzhou Co., Ltd. July 2004 China - SWS Management Support, Ltd. Tianjin Jin-Zhu Wiring Systems Co., Ltd. July 2004 China SEWS-COMPONENTS (Thailand)LTD. November 2004 Thailand PT. Sumi Indo Wiring Systems November 2005 Indonesia Sumidenso Vietnam Co., Ltd. March 2006 Vietnam SEWS-Automotive Wire Hungary Ltd. May 2006 Hungary Sumidenso Mediatech (Huizhou)Ltd. May 2006 China PILIPINAS KYOHRITSU INC. December 2006 Philippines HuiZhou Sumiden Wiring Systems Co., Ltd. September 2007 China SEWS COMPONENTS (HUIZHOU),LIMITED March 2008 China Wuhan Sumiden Wiring Systems Co., Ltd. September 2008 China Fuzhou Zhu Wiring Systems Co., Ltd. November 2008 China SEWS-Maroc SARL January 2009 Morocco Suzhou Sumiden Automotive Wire Co., Ltd April 2009 China SEWS Hungary Wiring Harness, Ltd. November 2009 Hungary SEWS South Africa Pty. Ltd. November 2009 South Africa International Electric Wires Phils. Corp. December 2009 Philippines Huizhou Zhurun Automotive Wire Co.,Ltd. February 2010 China Suzhou Bordnetze Electrical Systems Ltd. April 2010 China SE Wiring Systems Egypt S.A.E July 2010 Egypt Sumiden Vietnam Automotive Wire Co., Ltd. March 2011 Vietnam SE Bordnetze S.R.L April 2011 Romania SE Bordnetze-Bulgaria EOOD December 2011 Bulgaria Sumidenso da Amazonia Industrias Eletricas Ltda. August 2012 Brazil SEWS Components and Electronics Europe Ltd. February 2013 Hungary SE Bordnetze-Mexico S.A. de C.V. February 2014 Mexico Sumi Vietnam Wiring System Co., Ltd. August 2014 Vietnam Jiang Xi Wiring Systems Co.,Ltd. January 2015 China SEWS-Components Changshu, Ltd. April 2015 China Sistemas de Arneses K&S Mexicana, S.A. de C.V. January 2016 Mexico SEWS-COMPONENTS VIETNAM CO., LTD.｠ June 2017 Vietnam Changchun SE Bordnetze Co.,Ltd. June 2017 China Chengdu SE Bordnetze Company Ltd. June 2017 China Wuzhou SE Bordnetze Company Ltd. June 2017 China SUMI PHILIPPINES WIRING SYSTEMS CORPORATION October 2017 Philippines