PTT Public Company Limited, a major petroleum and petrochemical enterprise based in Bangkok, Thailand, conducts extensive global operations spanning Asia, Europe, and the United States. Its diverse business activities are structured across three key segments: Upstream Petroleum and Natural Gas, Downstream Petroleum, and New Business and Infrastructure. In its Upstream operations, the company focuses on the exploration and production of petroleum, alongside the acquisition, pipeline transport, distribution, and separation of natural gas. PTT is also involved in the exploration, production, and distribution of coal. The Downstream segment encompasses the comprehensive marketing of petroleum products and lubricants, managing everything from procurement and storage to distribution and retail sales through its network of service stations. PTT is also active in the international trade of petroleum, petrochemicals, and related commodities. Beyond these core energy ventures, PTT diversifies into various strategic areas. It generates and supplies electricity, steam, and water for industrial applications. The company provides a broad spectrum of specialized services, including project management, human resource support, petroleum technology expertise, consulting for electricity businesses, petrol station and convenience store management, factory maintenance and engineering, oil and gas services, safety and environmental solutions, and the storage and handling of liquid chemicals. Furthermore, PTT invests in liquefied natural gas (LNG) ventures, develops electricity generation projects, and produces and distributes chilled water. Its petrochemical interests include the development, marketing, and distribution of polymers, their by-products, and related products. The company also engages in real estate development, operates vocational training institutions, manufactures and distributes biochemicals, paraxylene, industrial coatings, and additives, and manages the logistics (transportation, warehousing, and packaging) for polyethylene. PTT was founded in 1978.