Koatsu Gas Kogyo Co., Ltd. engages in the production and sale of high-pressure gas, gas-related equipment, adhesives, and paints. It operates through the following segments: Gas, Chemical Products, and Others. The Gas segment offers molten acetylene, industrial gases, welding fusing-related equipment, and containers for molten acetylene. The Chemical Products segment provides adhesives, paints, and raw materials for chemical products. The Others segment includes latent semantic indexing (LSI) cards, radio-frequency identification (RFIDs), electronic paper displays, and food additives. The company was founded on June 26, 1958 and is headquartered in Osaka, Japan.