Founded
430years ago
Carrying on Sumitomo’s founding business dating back to 1590, the Sumitomo Metal Mining Group has supported global industry and society as it strives to become a world leader in non-ferrous metals.
Through our integrated business model spanning Resources, Smelting & Refining, and Materials, we uniquely manage everything from securing raw metal resources to refining and supplying high-performance materials—an approach that sets us apart on a global scale.
As a manufacturing-based company, we remain committed to fulfilling our social responsibilities and contributing to the realization of a more sustainable society and environment.
Founded
430years ago
Global Presence
14countries
and regions
Sites
9mines
8smelters and refineries
Equity Ratio
61%
(Consolidated, as of March 31, 2025)
Total Assets
3.1trillion JPY
(Consolidated, as of March 31, 2025)
Number of Employees
7,402
(Consolidated, as of March 31, 2025)