Bangchak Corp. Public Co. Ltd. engages in the operation of oil refinery. It operates through the following business segments: Refinery & Oil Trading, Marketing, Electricity, Bio-Based Product, Natural Resource and Others. The company markets its oil products to various sectors, such as transportation, aviation, shipping, construction, industrial, and agriculture sectors; and sells its oil products through oil traders. Bangchak was founded by Prem Tinsulanon on November 8, 1984 and is headquartered in Bangkok, Thailand.