Hiroyuki Sakakida

Tanaka Holdings Co. Ltd. manufactures and distributes precious metal products. It operates through its subsidiaries such as Tanaka Kikinzoku Hanbai, Tanaka Kikinzoku International, and Tanaka Denshi Kogyo. The firm offers services to the energy conservation, environmental control, health care, electric and electronics, automobile, telecommunication, and semiconductor industries. The company was founded in 1885 and is headquartered in Tokyo, Japan.

Part of Mitsubishi Corp., Mitsubishi Corp. RtM Japan Ltd. is a Japanese metal trading company that handles metal resources such as steel raw materials and non-ferrous metals. The company operates as a corporate site and a new graduate recruitment site of Mitsubishi Corporation RtM Japan Co., Ltd.

Tanaka Kikinzoku Kogyo KK manufactures, sells, imports, and exports industrial metal products. Its products include platinum, gold, silver and others. The firm also does refining and recycling of precious metals. The company was founded in 1885 and is headquartered in Tokyo, Japan.

Metalor Technologies International SA manufactures, sells, imports and exports industrial metals products. Its core competencies are chemistry, metallurgy and management of precious metals. The company was founded in 1852 and is headquartered in Neuchatel, Switzerland.