Gas Industry
Linde
Bangkok Industrial Gases
Praxair
Air Liquide
Thai Special Gases
Labgaz
Air product Industrial
Thai Japan Gas
Siam Gas
Blu Gas
Unique Gas
World Gas

Off Shore
Halliburton
Warley Parson
Marubeni
Bechtel International
PTTET

Petrochemical & Chemical
PTT Chemical
Emerson
GE Toshiba
AGC Chemical

Car Assambly Industrial
Toyota
Misubishi
Isuzu
Nissan
General Motor
Siam Koshi
Yamaha

Steel Mill
Thai Nippon Steel
Siam United Steel
Thai Steel Profile
Saha Viriya

Electronic Industrial
Panasonic
Spansion
Nakamura
Philip
Segate
Fabinet

Food Industrial
Thai Union Frozen
Royal Sea Food
Car Grill