Nitima Thepvanangkul

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.

PTT Aromatics & Refining Public Co. Ltd. manufactures cyclic organic crudes and intermediates. The company's principal activities are aromatics and refinery businesses. It supplies and refines petroleum products, such as liquefied petroleum gas, light naphtha and reformate, middle distillates including jet fuel and diesel and heavy products including fuel oil. The group is also engaged in the production and sale of aromatics products, which includes benzene, paraxylene, orthoxylene, toluene and mixed xylenes. The company was founded on September 13, 2007 and is headquartered in Bangkok, Thailand.

Sak Chaisidhi Co., Ltd. is a Thai company that manufactures and sells hydrocarbon solvents. The company is a subsidiary of the Government of Thailand and is based in Rayong, Thailand. The CEO of the private company is Surachai Saengsamran.

PTT International Trading Pte Ltd. is a Singaporean company that specializes in procuring, importing, exporting, and international trading of crude oil, petroleum, and petrochemical products. The private company is based in Singapore, Singapore. The company is ultimately controlled by the Government of Thailand.

Part of PTT Global Chemical Plc, PTT Phenol Co., Ltd. produces and distributes phenol and acetone. The private company is based in Bangkok, Thailand. PTT Phenol Co. was acquired by PTT Global Chemical Plc on May 02, 2013 for $171 million.