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, organic chemicals, and synthetic resin products. The Chemicals segment manufactures and sells functional polymers, industrial gases, basic chemicals, information electronic chemicals, and coating materials. The Electronics segment covers hard disks, silicon carbide epitaxial wafer, compound semiconductors, and lithium ion battery materials. The Inorganics segment deals with graphite electrodes and ceramics. The Aluminum segment manufactures and sells high-purity aluminum foil for capacitors, cylinders for laser beam printers, extruded and forged products, heat exchanger, and beverage cans. The Others segment deals with wholesale and building materials. The company was founded by Nobuteru Mori on June 1, 1939 and is headquartered in Tokyo, Japan.