SAM GAS Brand of LPG was introduced when SAM GAS CORPORATION was established in August 17, 1990. It is a family corporation which was established by the Samonte Group of Companies. Its first refilling plant is located in a prime industrial lot along the highway in Pulilan, Bulacan. It has customers (independent marketers) who carry their own brand, and dealers which serve as its marketing arm for domestic, commercial and industrial clients.
Due to its growing number of clients in the greater manila area, the Samonte Group of Companies decided to establish a marketing arm for Sam Gas brand of LPG in able to efficiently serve its Metro Manila based clients. It was then called Trident Gas and General Merchandise, it was later on incorporated in 2001 and was named TRIDENT GAS ENTERPRISE CORPORATION.
Because of the growing number of satisfied clients of Sam Gas brand of LPG who eagerly convinced the Samonte Group of Companies to serve their requirements in the Southern Tagalog Region, the Sta. Rosa, Laguna plant was then built and established as STA. ROSA GAS CORPORATION. The plant was also established to ensure better service and uninterrupted supply of LPG to Sam Gas clients in Paranaque, Alabang, Laguna, Cavite, going further South. The Sta. Rosa Gas plant has a capacity to refill twice as much as the Pulilan, Bulacan plant.