Mitsui Kinzoku Company, Limited (President: Takeshi Nou; “Mitsui Kinzoku”) announces that it has calculated the carbon footprint of products (CFP), specifically, of copper cathodes produced by Hibi Kyodo Smelting Co., Ltd. (President: Ryuchi Takahashi; hereinafter “Hibi Kyodo Smelting”), a Mitsui Kinzoku Group company. It has also received third-party assurance of its calculations. CFPs are a metric of greenhouse gas (GHG) emissions in the product life cycle.
The GHG emissions per kilogram of copper cathodes manufactured through the processes of Hibi Kyodo Smelting in fiscal year 2023 were calculated, including the processes from the procurement of raw materials to the shipments of products (commonly referred to as cradle to gate), in accordance with the ISO 14067:2018 standard. Additionally, Mitsui Kinzoku asked DNV Business Assurance Japan K.K., a third-party assurance body, to verify its calculation process and results, and it received limited assurance from it.
Like the Copper Mark certification received in April 2025, Mitsui Kinzoku considers the reception of this assurance to be an important step for Hibi Kyodo Smelting to become a truly sustainable copper smelter. Mitsui Kinzoku’s metals business has a mission of providing solutions that help build a sustainable world. Mitsui Kinzoku believes that this initiative will lead to the provision of greater environmental value to customers.
In the future, Mitsui Kinzoku will apply this initiative for the products of its zinc and lead smelters as it works to be highly evaluated by more customers.
Mitsui Kinzoku will contribute to the realization of a sustainable society by implementing its vision for 2030, “Building new businesses －and the future－ with our material intelligence,” based on its purpose, “We promote the well-being of the world through a spirit of exploration and diverse technologies.”
Please check the below PDF file for details.
Calculation of Carbon Footprint of Copper Cathodes and Reception of Third-Party Assurance