1. ABB Contracting
2. Alliance Refining Company Limited (SPRC & RRC)
3. Annual inspection of LPG sphere tank (PWD)
4. Applied Machinery Company Limited
5. Asian Steel Product

6. Bangchak Petroleum Company Limited
7. Bec-Pro Company Limited
8. Beta Clough Co., Ltd.
9. BJC/Shop Structural Fabrication Service
10. Bureau Veritas (Thailand) Limited

11. C.S. Engineering Company Limited
12. CBI (Chicago Bridge & Iron Co. (Illinois))
13. CH. Karnchang Company Limited
14. CH. Karnchang - Tokyu Construction (Joint venture)
15. Chai Mongkol Asia Co., Ltd. / Thai Paraxylene

16. Chaijira Co., Ltd.
17. Chatr Karnchang Laemchabang / SUP 3
18. Chiyoda (Thailand) Ltd.
19. Christiani & Nielsen Company Limited
20. CKC Engineering & Construction (1998) Co., Ltd. / Esso

21. Consotium Mitsui / Maruzen / Sino-Thai (PTT Songkhla LPG & Oil Depot Project)
22. Consortium NKK /TMK / VP / NET
23. Consortium of CTCI Corporation and CTCI (Thailand) Co., Ltd.
24. CTCI (Thailand) Co., Ltd.
25. Electrocity Generating Authority of Thailand

26. Emco Ltd. (Thailand) Limited
27. Esso (Thailand) Company Limited
28. European Gas Turbines Co., Ltd.
29. Finemores Logistic Co., Ltd.
30. Foster Wheeler / Steel Structual

31. H.M.C. Polymer Corporation
32. HMI / Hinkrud Power Plant
33. Hyundai Heavy Industries
34. Italian - Thai Corporation
35. Italian - Thai Development Public Co., Ltd.

36. K.S.S. Mechanics & Equipment Public Co., Ltd.
37. Ketchan Engineering Company Limited
38. Lucky Engineering Co., Ltd.
39. Mechelin Siam Co., Ltd.
40. Meisei International Co., Ltd.

41. Metropolitan Water Works Authority, Bangkok
42. Mitsui Company / Thai Meidensha (Joint venture)
43. National Petrochemical Corporation
44. Norconsult INternational A-S
45. Otto Ender Steel structure Co., Ltd.

46. PAE (Thailand) Welding / Welder Qualification Programmer
47. Provincial Electrocity Authority
48. Provincial Water Authority
49. PTT / LPG Sphere
50. Rom Chat Limited Partnership

51. Royal Irrigation Department
52. Royal Thai Airforce
53. Royal Thai Army
54. S. Paisal Co., Ltd.
55. S. Sirisaeng / P.T.T. (Joint venture)

56. Saipem Asia Sdn. Bhd.
57. Samsung Engineering and Construction Co., Ltd.
58. SHI / 7 Sphere
59. Siam Cement Group (Various sections)
60. Siam City Cement Company Limited

61. Siam Craft Industry
62. Siam Machinery & Equipment
63. Siam Steel Work Company Limited
64. Sino Thai Corporation
65. SK Construction

66. SKEC (Thailand) Co., Ltd.
67. Slot - Nankai Company Limited
68. Soecon Engineering Company Limited
69. Spie Battignolles Company Limited
70. Sriracha Construction

71. Stecon
72. STP & I Co., Ltd.
73. Sukhothai Petroleum
74. Summit Grade / Srikokkij (Joint venture)
75. T. J. Chatura Company Limited

76. Thai Aromatic Plant
77. Thai Engineering Consultant Company Limited
78. Thai Herrick
79. Thai International Airways
80. Thai Maintenence Contracting

81. Thai Nishimatsu Company Limited
82. Thai Oil Refinery Company Limited
83. Thai Peroxide Company Limited
84. Thai Petro Industry
85. Thai Petrochemical Industry

86. Thai Polyethylene Company Limited
87. Thai Rotary
88. Thai Shell Petroleum Company Limited
89. Thailand Institute of Science & Technology Research
90. TOC

91. Toll (Thailand) Co., Ltd.
92. Toshiba (Thailand) Limited
93. Toyo Engineering Corporation
94. Toyo Thai Corporation Limited
95. Tuntex (Thailand) Limited

96. Ultimate Technology Service
97. Union Oil Company Limited
98. Unithai Shipyard & Engineering Ltd.
99. Vatanaphaisal Engineering Company Limited
100. Vianini Lavori S.P.S.

101. Others