Tadamitsu Fukuchi

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.

Part of Shiomi Holdings Corp., Wakamatsu Gas Kagaku Kogyo Co. Ltd. is a Japanese company that engages in the construction of air ducts and ventilation systems. The company is based in Aizu-Wakamatsu, Japan.

Part of Shell Plc, Showa Yokkaichi Sekiyu Co., Ltd. engages in processing and wholesale of petroleum products and petrochemicals. The company is based in Yokkaichi, Japan.