Siamgas and Petrochemicals Public Company Limited, together with its subsidiaries, engages in trading of petroleum and petrochemical, transportation services by land, ship, oil depots, and port services in Thailand and internationally. It operates through Petroleum and Petrochemical Products, Transportation Services, and Other segments. The company is also involved in trading of petroleum for household cooking, industry, and transportation sectors; and the holding business. In addition, it provides transportation services by land and ship; manufactures and distributes cylinders; and oil depots and port services, as well as warehousing and storage services. The company was formerly known as VSPP Development Company Limited. Siamgas and Petrochemicals Public Company Limited was founded in 2001 and is headquartered in Bangkok, Thailand.