Siamgas & Petrochemicals Public Co. Ltd. engages in the sale and production of liquefied petroleum gas, ammonia, and other petrochemical products. It operates through the following segments: Petroleum and Petrochemical Products, Transportation Services, and Other. The Petroleum and Petrochemical Products segment offers products for household cooking, industry, and transportation business. The Transportation Services segment provides freight services by land and ship. The Other segment includes cylinder manufacturing, holding business, and oil depots and port services. The company was founded on January 17, 2001 and is headquartered in Bangkok, Thailand.