AFFILIATED CORPORATIONS DIVISION
Related businesses center on engineering and trading companies that support the operations of Mitsubishi Materials’ businesses. These companies are expanding their sphere of activities from Japan to locations overseas.
Our engineering companies offer comprehensive engineering services, such as designing nonferrous metal, chemical, pharmaceutical and diverse other plants, as well as providing maintenance services after the plants are constructed. Our trading companies engage in unique businesses, including domestic coal extraction and sales of gold. In the regional development arena, we conduct tours at disused mining sites.
Many of the Company's related businesses got their start as departments supporting the Group's coal and metal mining operations. Mitsubishi Materials Techno Corporation started by providing mine maintenance and construction services. Kanko Kodo was established to provide employment at disused metal mines and communicate our history of industrial development to future generations.
|1947||Established Ryoko Sangyo Corporation (now Mitsubishi Materials Trading Corporation)|
|1950||Established Ote Real Estate Corporation (now Mitsubishi Materials Real Estate Corporation)|
|1955||Established Sakito Salt Corporation (now Diasalt Co., Ltd.)|
|1958||Established Ote Kosan Co., Ltd. (now Mitsubishi Materials Techno Corporation)|
|1961||Established Hokuryo Sangyo Corporation (now Hokuryo Corporation)|
|1963||Established Tohoku Automobile Kogyo Corporation (now Diaplaza Corporation)|
|1969||Established Toi Marine Kanko Co., Ltd.|
|1970||Established Golden Sado Inc.|
|1974||Established Silver Ikuno Inc.|
|1985||Established Ryoko Finance Co., Ltd. (now Materials' Finance Co., Ltd.)|
|2003||Transferred nuclear power engineering business to Mitsubishi Materials Techno Corporation|
|2015||Transferred jewelry business to Mitsubishi Materials Trading Corporation|
|2017||Established Kitakyushu Ash Recycle Systems Co., Ltd.|
|2021||Transferred etuity of Dia Plaza Co., Ltd.|
|2023||Absorbed Materials' Finance Co., Ltd.|
|2023||Transferred equity of Diasalt Co., Ltd.|
|2023||Established Mitsubishi Materials IT Solutions Co., Ltd.|