Bangchak Corporation Public Company Limited, together with its subsidiaries, engages in the refining and marketing of petroleum products in Thailand, Singapore, Norway, Korea, Laos, and internationally. It operates through the Refinery and Oil Trading, Marketing, Electricity, Bio-Based Product, Natural Resource, and Others segments. The company also engages in the production and distribution of electricity from green energy; investment in alternative energy business; oil terminal and seaport businesses; and biofuel products and related products. In addition, it is involved in the operation of electric motorcycles and battery replacement services; solar power plants and rooftop businesses; installation of management district cooling systems; manufacture and distribution of ethanol; public utilities and energy services business; operation of contract development and manufacturing organization platform for synthetic biology products with precision fermentation technology; real estate for lease; hydropower plant; and investment in foreign energy, petrochemical, and natural resource businesses. The company sells its products through oil traders. It serves the transportation, aviation, shipping, construction, industrial, and agriculture sectors. The company was formerly known as The Bangchak Petroleum Public Company Limited and changed its name to Bangchak Corporation Public Company Limited in April 2017. Bangchak Corporation Public Company Limited was founded in 1984 and is headquartered in Bangkok, Thailand.