Hiroto Tamai

RS Energy KK engages in the manufacture and sale of energy-related products. It operates through the following business segments: Oil Business, Energy Solutions Business, and Other. The Oil Business segment supplies gasoline, naphtha, kerosene, diesel oil, fuel oil, liquefied petroleum gas, asphalt, and petrochemical products. The Energy Solutions Business segment offers solar panel systems and electric power. The Other segment includes real estate, construction works, and automobile supplies. The company was founded on August 1, 1942 and is headquartered in Tokyo, Japan.

Solar Frontier KK operates as a CIS thin-film solar energy company by production, sales and technology. The firm’s products include R&D, module production, supply, system solutions, power production, operation and maintenance. The company was founded in 2006 and is headquartered in Tokyo, Japan.

Toa Oil Co., Ltd. engages in the petroleum refining and electrical power generation businesses. It operates through the following divisions: Refining Business, Generation Business, Facilities. The Refining Business division provides refinery of gasoline, kerosene, light oils, and heavy oils. The Generation Business division engages in the supply of electricity and steam necessary for oil refinery through pipelines, boiler and gas turbines. The Facilities division provides oil-refining and power-generation equipment. It also supplies petroleum products to Kanto region. The company was founded on February 6, 1924 and is headquartered in Kawasaki, Japan.