News

Naoshima Smelter & Refinery of Mitsubishi Materials Corporation and Onahama Smelter & Refinery of its Group company Onahama Smelting & Refining Co., Ltd. have been assessed under the Copper Mark Assurance Framework and awarded The Copper Mark as of October 4, 2024.

The Copper Mark is a framework developed in 2019 to demonstrate the copper industry's "responsible production" and contribution to the SDGs advocated by the United Nations. The Copper Mark is the leading assurance framework to promote responsible practices across the copper, molybdenum, nickel and zinc value chains. The Copper Mark works with companies and organizations throughout these metals' value chains to enable them to better understand and meet the increasing demands for independently verified responsible practices, and to contribute positively to sustainable development.

We started the procedure for participation in the Copper Mark Assurance Framework in December 2023(*1) and have now achieved the award after an audit by an independent third-party organization. The Group has established key material issues in its Medium-term Management Strategy FY2031 and promoted various initiatives for "contribution to the global environment," "sustainable supply chain management," and "respect for human rights." Attaining The Copper Mark certification is an objective recognition of the steady results of these efforts.

The Group set "For people, society and the earth, circulating resources for a sustainable future" as "Our Commitment." Going forward, we aim to realize Our Commitment by taking full advantage of our copper smelters & refineries.

(*1) Press release dated December 13, 2023
Initiation of a Procedure for the Copper Mark
URL: https://www.mmc.co.jp/corporate/en/news/2023/news20231213.html