Yaichi Kimura

United Petroleum Development Co., Ltd. is engaged in the development, production and sales of crude oil and other petroleum products. The company was established in 1970 and is based in Tokyo, Japan.

Maruzen Petrochemical Co., Ltd. develops, produces and sells petrochemical products. It produces ethylene and other chemicals. The firm offers petrochemical products such as ethylene, propylene and benzene. The company was founded by Shun Fujii on October 10, 1959 and is headquartered in Tokyo, Japan

Cosmo Oil Co., Ltd. engages in the petroleum bulk stations and terminals business. It also operates in oil procurement and manufacture, distribution, import and export of oil and petrochemical products. The company was founded on April 1, 1986 and is headquartered in Tokyo, Japan.

Eco Power Co., Ltd. engages in the provision of wind power generation services. It provides repair and maintenance services for wind turbines; management guidance of the wind power generation business; collection and analysis of wind data; wind power generation machinery equipment maintenance, repair and contract business; development of renewable power generation sites; operates wind turbine plants, distributes wind turbines electricity and others. The company was founded on July 1, 1997 and is headquartered in Tokyo, Japan.

Part of Cosmo Energy Holdings Co., Ltd., Cosmo Petroleum Gas Co., Ltd. is a Japanese company that refines and distributes petroleum gas products. The company is based in Tokyo, Japan.

Part of Cosmo Energy Holdings Co., Ltd., Cosmo Oil Lubricants Co., Ltd. is a Japanese company that develops, produces, and sells lubricating oils and greases. The company is based in Tokyo, Japan.

Founded in 1935, Cosmo Oil Sales Corp. is a subsidiary of Cosmo Energy Holdings Co., Ltd. that retails automobile petroleum products, cars, and parts, and provides automobile repair services. The company is based in Tokyo, Japan.

Part of Cosmo Energy Holdings Co., Ltd., COSMO Energy Exploration & Development Co., Ltd. is a Japanese company that develops crude oil. The company is based in Tokyo, Japan.