Corporate Information

Delivering responsiveness that is quick and precise. We have established a global network of technology development, manufacturing, and sales.

Mission Statement

Introducing the philosophy subscribed to by the entire workforce here at SUMCO.

CSR Policy

Introducing SUMCO CSR Policy.

CSR Activities

Introducing our CSR activities.

Corporate Governance

Introducing SUMCO's Corporate Governance.

Corporate Data

Introducing our trade name, our year of establishment, and other basic information pertaining to SUMCO.


Introducing SUMCO's organizational chart.


Introducing our directors and executive officers.

Company History

Introducing our history as it extends from our establishment in 1937 to the present.


Introducing a map of our Tokyo headquarters as well as our various other locations.

Environmental Management

Introducing our initiatives for ensuring that our rich natural environment will be inherited by the next generation.