About Us

Sumitomo Metal Mining by the numbers

history

More than

430years of history

Bases in

14countries and regions

9mines

8smelters and refineries

Financial base

Equity ratio

60.1%

Total assets of

3.1 trillion yen

(Consolidated, as of March 31, 2025)

Employees

7,402​

(Consolidated, as of March 31, 2025)

Becoming the World Leader
in the Non-Ferrous Metals Industry

President and Representative Director
Nobuhiro Matsumoto

Greetings from the President

Corporate Philosophy

Corporate Information

History

Core facilities / group companies

Corporate Profile

Here you can find Sumitomo Metal Mining Group’s history, an overview of our business, Sustainability initiatives, and other such information.

Media Library

430 years of history. SMM contributes to society by leveraging the Sumitomo Business Spirit handed down over many generations and the technology we have refined over many years. And the future...
Learn visually about Sumitomo Metal Mining from various angles.

Photo Gallery

Sumitomo Metal Mining in pictures. Learn about our businesses and products in pictures.

Video Library

Sumitomo Metal Mining in videos. Watch a video introducing the company, the company’s brand video, and other videos.

Corporate advertisement

See corporate advertisements that have been placed in the media.
Media Library