Bangchak Sriracha PCL engages in the petroleum refining and distribution business. It focuses on operating oil refinery and aromatics business in Sriracha, Chonburi province, a network of oil terminals, nationwide service stations under the brand, Bangchak. It operates through the Downstream and Petrochemicals segments. The Downstream segment includes the refining and marketing of petroleum products. The Petrochemicals segment refers to the manufacturing and marketing of chemical products. The company was founded in 1965 and is headquartered in Bangkok, Thailand.