West Holdings Corp. engages in the solar power generation business. It operates through the following segments: Renewable Energy, Energy Saving, Electric Power, and Maintenance. The Renewable Energy segment deals with public and industrial solar power generation systems as well as environmental reforms. The Energy Saving segment handles the construction and sale of roof, exterior wall, and earthquake-proof materials. The Electric Power segment engages in power generation business using solar power systems. The Maintenance segment provides comprehensive management and maintenance of solar power generation systems and related facilities. The company was founded in October 1981 and is headquartered in Hiroshima, Japan.