Showa Denko K.K. engages in the manufacture and sale of chemical products. It operates through the following segments: Petrochemicals, Chemicals, Electronics, Inorganics, Aluminum, and Others. The Petrochemicals segment produces and merchandises olefins and organic chemicals. The Chemicals segment manufactures and sells functional polymers, industrial gases, and basic chemicals. The Electronics segment covers hard disks, compound semiconductors, rare earth magnetic alloys, and lithium ion battery materials. The Inorganics segment deals with graphite electrodes and ceramics. The Aluminum segment manufactures and sells rolled aluminum products, aluminum specialty components, and beverage cans. The Others segment produces and sells silicon carbide epitaxial wafers and building materials. The company was founded by Nobuteru Mori in 1939 and is headquartered in Tokyo, Japan.