Thaioil Group is a Thai energy and chemicals company whose vision is to improve quality of life through sustainable energy and chemicals. With more than six decades of experience, it has grown from a refinery producing 35,000 barrels per day into an integrated, complex refinery with capacity of 275,000 barrels per day. Designed to extract greater value from its processes, the refinery can adjust its product mix to market demand and use crude oil from different sources. Its products include refined petroleum, petrochemicals and lube base oils.

The group also operates in petrochemicals and power generation. Its electricity business includes investment through TOP SPP and collaboration with Global Power Synergy, a major power business in the PTT Group. Other businesses support and strengthen its operations. Thaioil serves customers and business partners through product information, online ordering and customer and supplier registration services. Across its activities, the group highlights sustainable growth and ESG management, covering environmental stewardship, social responsibility and corporate governance, with a stated aim of creating long-term value for stakeholders.