Sermsuk Public Company Limited, together with its subsidiaries, manufactures and distributes soft drinks and beverages in Thailand. It operates through Carbonated Soft Drink and Non-Carbonated Soft Drink segments. The company produce and distribute soft drinks, drinking water, sport drinks, energy drinks, and other beverages, such as distributor of soda and tea. It offers its products under the est, Crystal, Oishi, Ranger, Jubjai, Sarsi, 100PLUS, V-Boost, Rock Mountain, ZEA Tuna Essence, and Power Plus brands. Sermsuk Public Company Limited was founded in 1952 and is headquartered in Bangkok, Thailand. Sermsuk Public Company Limited is a subsidiary of So Water Company Limited