OSAKA SODA CO., LTD. engages in the production and sale of chemicals, pharmaceuticals, and resin products. It operates through the following segments: Basic Chemicals, Functional Chemicals, and Housing Facilities. The Basic Chemicals segment includes chlor-alkali, allyl chloride, and epichlorohydrin products. The Functional Chemicals segment produces and sells pharmaceuticals and intermediates including allyl ethers, epichlorohydrin rubber, diallyl phthalate (DAP) resins, silica gel for liquid chromatography and electrodes. The Housing Facilities segment handles the production and marketing of DAP processed materials and products related to housing. It also deals with construction of chemical plants and environmental protection facilities. The company was founded on October 26, 1915 and is headquartered in Osaka, Japan.