Bangchak is a leading Thai petroleum company, with a refining capacity of 120,000 barrels per day. It operates more than 1,000 service stations nationwide under trademark. With a vision of Greenergy Excellence, the company also operates several renewable energy businesses, including the Sunny Bangchak and Bangchak Solar Energy (BSE) photovoltaic power generation plants, with a combined installed capacity of 170 MW, a 360,000 litre per day biodiesel plant, and a 400,000 litre per day ethanol plant.