HEAT EXCHANGERS - REFERENCE LIST

Nr. Project Description Location Customer

1 Four H/E M-3203/12/15/24 for a NAPHTHA HDT Unit HELPE- CHRISSOLOURIS 2 One H/E M-3201 A/D for a NAPHTHA HDT Unit HELPE-ASPROPYRGOS METKA 3 Four H/E M-2102/A/B/3/15/23 for a VACUUM Unit HELPE-ASPROPYRGOS CHRISSOLOURIS 4 One H/E E-3301 Compressor Int. Cooler M.O.H. KORINTHOS EKME 5 Seven H/E KIT - MESSO BIOKAT / MANNESMAN 6 One H/E E-1061 THESSALONIKI EKME / XBBE 7 Five H/E E-101/2/8, E-705/7 for a Lube oil Plant LPC – ASPROPYRGOS EKME 8 One H/E E-708 A/B HELPE - THESSALONIKI EKME 9 Two H/E XBBE THESSALONIKI EKME 10 One Condenser for a Combined cycle Power Plant of 110 MW LAVRION PPC POWER PLANT MEKABO

11 Three H/E E-1058/9/6/ for a NH3 Unit HELPE - THESSALONIKI EKME 12 Two H/E E-1127, E-1128 , preheating train KORINTHOS M.O.H / EKME 13 Two H/E E-414, E-456 for a powerformer unit HELPE - THESSALONIKI EKME 14 One water heater, heat conservation program INOFITA - ELFINCO / INMARTEK 15 Seven H/E E-1101/2/3/4/6/8/10/13 FUJAIRAH EMIRATE METRO OIL REFINERY 16 Two H/E E-658, E-659 for a sulphur recovery unit HELPE – THESSALONIKI EKME 17 Four H/E for a central heating system PPC AGIOS DIMITRIOS POWER PLANT EKME / AEGEK

18 One NH3 H/E THESSALONIKI S.I.C.N.G. / EKME 19 One H/E for PETROLA REFINERY PETROLA / ENOIA

20 One NH3 Vaporizer THESSALONIKI S.I.C.N.G. / EKME 21 Seven H/E E-324/26/27/29/31/33/35 for an isomerization unit HELPE - THESSALONIKI EKME 22 One H/E for lube oil refinery ATHENS LPC / EKME 23 One water preheater ATHENS MASINA TEAM 24 Two LP preheaters 11, 21 PPC KARDIA POWER PLANT PPC / EKME 25 Seven H/E M-4103X/08X/11X, M-4203X/07X/10X/21X for an FCC unit HELPE – ASPROPYRGOS EKME 26 Four H/E M-4251 A/B, M-4255 A/B, M-4252/56 for a P/P splitter unit HELPE - ASPROPYRGOS METKA 27 Two H/E E-185, E-186 HELPE - THESSALONIKI SKARLATOUDIS

October 2007 Page 1 of 3

HEAT EXCHANGERS - REFERENCE LIST

Nr. Project Description Location Customer

28 One Oil heater THESSALONIKI WILLACY OF SERVICES / EKME 29 One water-vapor H/E ATHENS – TEXTILE EKME 30 One H/E E-429 HELPE – THESSALONIKI EKME 31 One H/E E-413 A/B HELPE – THESSALONIKI EKME 32 Two H/E E-1804/5 HELPE – THESSALONIKI KTI / EKME 33 One H/E E-3361 THESSALONIKI S.I.C.N.G. / EKME 34 Five H/E E-203 A/B, E-212 A/B/C, E-213/14/16 A/B for a Vacuum Unit HELPE – THESSALONIKI SKARLATOUDIS 35 Two H/E E-220 A/B, E-204 A/B for a Vacuum Unit HELPE – THESSALONIKI EKME 36 One H/E M-3201 A/B/C for a NAPHTHA HDT Unit HELPE - ASPROPYRGOS EKME 37 Eleven H/E for a TAME Unit HELPE - ASPROPYRGOS EKME 38 One H/E E-102-Reformer Feed Preheater PETROLA ELEUSIS ENOIA 39 One Demineralized Water Cooler EKME / PPC 40 One H/E E-3301 Compressor Int. Cooler MOTOR OIL HELLAS KORINTHOS EKME 41 One H/E E-602 A/B HELPE – THESSALONIKI EKME 42 One Shulphuric acid H/E SING – THESSALONIKI SKARLATOUDIS BROSS 43 Five H/E (modifications) MOTOR OIL HELLAS EKME 44 Five sulphur H/E E-1901, E-1902, E-1903, E-1905, E-1908 A/B HELPE – THESSALONIKI EKME 45 Three FCC H/E M-4213X, M-4215X & M-4223X HELPE – ASPROPYRGOS EKME 46 One water/steam heat exchanger PPC – MYTILINI H. REQUOUNIOTIS 47 One heat exchanger PETROLA HELLAS EKME 48 Five H/E E-3193, E-4952, E-7510, E-7602, E-7531 MOTOR OIL HELLAS EKME 49 Three H/E M-5131, M-2123, M-2115 HELPE – ASPROPYRGOS EKME 50 Two H/E E-2 C/D, E-7 C/D PETROLA HELLAS EKME 51 Two H/E of one Sulphur Plant M-3703/4 HELPE - ASPROPYRGOS EKME 52 One Gas Preheater for a power plant HERON – TERNA METRON 53 Five H/E for unit 3300 HELPE – ASPROPYRGOS EKME

October 2007 Page 2 of 3

HEAT EXCHANGERS - REFERENCE LIST

Nr. Project Description Location Customer

54 Six H/E and one A/C MOTOR OIL HELLAS EKME 55 One H/E HELPE – ELEUSIS (PETROLA) EKME 56 Ten H/E for CDHDS Unit HELPE - ASPROPYRGOS EKME 57 One H/E for Utilities HELPE – THESSALONIKI EKME 58 Two Suction heaters PPC – ATHERINOLAKOS ATHINA 59 One H/E 100-E-03C HELPE – ELEUSIS EKME 60 Ten H/E HELPE – ELEUSIS EKME 61 Two H/E HELPE - THESSALONIKI MERICHEM/EKME 62 One Vapour – Clycerine H/E ΕLΙΝ SALONICA CONSTRUCTIONS 63 Thirty H/E of M.O.H. (Prestudy for proposal). M.O.H. EKME 64 Two H/E E-8, E-9 HELPE – ELEUSIS EKME 65 One H/E E-963 A/B HELPE - THESSALONIKI EKME 66 One H/E E-111 HELPE - THESSALONIKI SKARLATOUDIS BROSS

October 2007 Page 3 of 3