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Joint Due Diligence Standard for Copper Lead Nickel and Zinc

The Joint Due Diligence Standard was developed collaboratively by the Copper Mark (CuMark), the International Lead Association (ILA), the International Zinc Association (IZA), the Nickel Institute and the Responsible Minerals Initiative (RMI).

The Standard enables companies in the supply chain to comply with the London Metal Exchange Responsible Sourcing requirements, and covers risks associated with conflict and human rights abuses in mineral supply chains. The Standard is designed to enable effective due diligence for producers and traders. It builds on existing standards and it intends to provide flexibility for multi-metal producers which extract both primary and secondary (by-product) minerals at their production sites.

Copper Mark Criteria for Responsible Production

The Copper Mark is a comprehensive assurance framework focused on demonstrating the copper industry’s responsible production practices.

The Copper Mark Criteria for Responsible Production are management system requirements defined in the Risk Readiness Assessment and the Criteria Guide. The Criteria Guide provides additional guidance, including a description of the performance determination and means of verification for each criterion. All participants of the Copper Mark commit to fully meet all criteria within 24 months. The Risk Readiness Assessment (RRA) is created by the Responsible Minerals Initiative. It represents the core expectations from over 40 leading existing voluntary sustainability standards across all major environmental, social, and governance topics.

Participation in the Copper Mark is open to multi-metal mines that produce other metals alongside copper.