Sumitomo Electric Industries, Ltd. engages in the manufacture and sale of electrical wires, cables, and other communication wiring products. It operates through the following business segments: Environmental Energy-Related, Information and Communication-Related, Automotive-Related, Electronics-Related and Industrial Materials-Related Businesses. The Environmental Energy-Related Business segment conductive products, power transmission and distribution wires, cables and equipment, windings, air springs, etc. The Information and Communication-Related Business segment optical fiber cables, communication cables and equipment, optical fusion splicers, optical and electronic devices such as optical data link and wireless communication devices. The Automotive-Related Business segment wire harnesses, vibration-damping rubber, automotive hoses, automotive electrical components. The Electronics-Related Business segment electronic wires, electron beam irradiation products, flexible printed circuits, fluororesin products, rivets and screws, metal parts, chemical products. The Industrial Materials-Related Business segment PC steel materials, precision spring wire, steel cord, cemented carbide tools, diamonds CBN tools, optical components for lasers, sintered components, semiconductor heat dissipation substrates. The company was founded in April 1897 and is headquartered in Osaka, Japan.