Bowon Vongsinudom

Part of Thai Oil Public Co. Ltd., PTT Utility Co. Ltd. is a company that generates and supplies electricity. The company is based in Bangkok, Thailand. PTT Utility Co. was acquired by Independent Power Thailand Co. Ltd. from PTT Public Co., Ltd. on January 10, 2013.

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.

Part of PTT Global Chemical Plc, PTT Polyethylene Co. Ltd. is a Thai company that produces high-density polyethylene pellets. The company is based in Bangkok, Thailand. PTT Polyethylene Co. was acquired by PTT Chemical Public Co., Ltd. from PTT Public Co., Ltd. on October 03, 2006.

Thai Tank Terminal Ltd. provides liquid bulk terminal services to the petrochemical industry. The company was founded on March 27, 1992 and is headquartered in Rayong, Thailand.

Part of PTT Global Chemical Plc, PTTGC International Pte Ltd. functions as an investment holding Singaporean company. The company is based in Singapore, Singapore.

Part of PTT Global Chemical Plc, PTT Chemical International Ltd. (Asia Pacific ROH) provides investment services. The company is based in Bangkok, Thailand.

Vinythai Public Co., Ltd. engages in the manufacture and distribution of petrochemical products. It operates through the Vinyl and Biochemical segments. The company was founded on December 27, 1988 and is headquartered in Bangkok, Thailand.

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

Part of ICAP-SIRA Chemicals & Polymers SpA, UAC Advance Polymer & Chemicals Co., Ltd. is a leading industrial adhesive manufacturer in Thailand. The company is based in Bangkok, Thailand. The Thai company specializes in producing polymer emulsion or latex for various industries, including paint, adhesive, construction, textile, flexographic ink, floor polish, and specialty toll manufacturing. The company also offers co-development and customization services to clients with unique requirements. The company has over 20 years of experience in the polymer emulsion market and has collaborations with leading scientific institutions in Thailand. The company has participated in innovation competitions at the national level, including the Total Innovation Management Award 2016 held by SET, MAI, and NIA. The company was founded in 2015. Wirote Aparattanachai has been the CEO of the company since 2023. UAC Advance Polymer & Chemicals Co. was acquired by ICAP-SIRA Chemicals & Polymers SpA from UAC Global Public Co. Ltd. on March 28, 2023.

ASEAN Potash Chaiyaphum Public Co. Ltd. manages potash mining projects. The company was founded in 2015 and is headquartered in Bangkok, Thailand.

Bangkok Industrial Gas Co., Ltd. distributes industrial gases. The joint venture company is based in Bangkok, Thailand.

Thai Gas Corp Co., Ltd. is engaged in procurement, distribution and transportation of liquefied petroleum gas (LPG). It provides LPG for household and industrial customers. The company also operates LPG station and offers LPG transportation services. Thai Gas Corp was founded on March 11, 2011 and is headquartered in Bangkok, Thailand.

State Railway of Thailand owns and operates railroads. The private company is based in Bangkok, Thailand.

Metropolitan Waterworks Authority produces, transmits, and distributes water. The company is a subsidiary of the Government of Thailand and is based in Bangkok, Thailand.