Sumitomo Electric manufactures wire harnesses, optical fiber, power cables and industrial materials. Its products serve automotive, communications, energy and manufacturing applications.
History and development
Sumitomo Electric's roots lie in Sumitomo's wire-manufacturing business of 1897. Copper processing and electrical cables developed into optical communications, automotive wiring and electronic materials. It supplies materials and components rather than operating as an electricity-generating utility.
References: Sumitomo Electric: history