Masaharu Sano

Teikoku Oil Co. Ltd. explores, develops, and supplies petroleum, natural gas, and other energy resources. The company's services include refining and processing of oil, natural gas, and chemical and petro-chemical industrial products. Its other activities include real estate rental and leasing, civil engineering, well-drilling works, passenger transportation, and warehousing. The company was founded on September 1, 1941 and is headquartered in Tokyo, Japan.

Japan Drilling Co., Ltd. engages in offshore drilling contract business. It also provides engineering services, research and development in relation to offshore drilling, and oil and gas exploration and development. The company was founded on April 23, 1968 and is headquartered in Tokyo, Japan.

ELIIY Power Co., Ltd. develops and manufactures electricity storage systems. It offers general-purpose products such as electricity storage system for indoor use; stationary electricity storage systems; and general-purpose electricity storage system for industrial use. The firm also manufactures custom-built products including high-capacity electricity storage systems. The company was founded by Hiroichi Yoshida on September 28, 2006 and is headquartered in Tokyo, Japan.