Viroj Mavichak

Part of Thai Oil Public Co. Ltd., Thai Lube Base Public Co., Ltd. is a company that refines and produces lube base oil products. The company is based in Cholburi, Thailand. The CEO of the company is Abhinant Supatrabutra. Thai Lube Base Public Co. was acquired by Thai Oil Public Co. Ltd. from Nippon Oil Corp. on October 20, 2004 for $48.34 million.

Thai Paraxylene Co., Ltd. manufactures aromatics and other petrochemical products. The company is based in Sri Racha, Thailand. Thai Paraxylene Co. was acquired by Thai Oil Public Co. Ltd. on October 20, 2004 for $40.29 million.

Independent Power Thailand Co. Ltd. owns and operates a power plant. The company is headquartered in Chonburi, Thailand.

Thaioil Power Co. Ltd. is engaged in generation of electric power. The company operates and manages a natural gas-fired combined-cycle co-generation power plant. Thaioil Power was founded in 1997 and is headquartered in Bangkok, Thailand.

Part of Nathalin Co. Ltd., Truth Maritime Co. Ltd. is an investment holding Thai company. The company is based in Bangkok, Thailand. The CEOs of the company are Nitas Krongvanitchayakul and Suthasinee Muenlamay.

Thaioil Solvent Co., Ltd. is a company that manufactures petrochemical, lube oils, ethanol and chemical solvent products. The company is based in Chatuchak, Thailand. The company is a subsidiary of Thaioil Group and ultimately controlled by the Government of Thailand. The company was founded in 2008. The CEO is Chaiwat Damrongmongkolgul.

Thaioil Ethanol Co., Ltd. provides oil refining services and is ultimately controlled by the Government of Thailand. The company is based in Bangkok, Thailand.

TOP Solvent Co. Ltd. produces and distributes solvents and chemicals. The company was founded in on October 14, 2008 and is headquartered in Bangkok, Thailand.