The Copper Mark Chain of Custody Standard sets the rules to support product-level claims related to “Copper Mark copper.” It seeks to increase transparency in copper supply chains and to bring responsibly sourced copper to the market.

The Chain of Custody Standard is a voluntary add-on option to an assessment against the Copper Mark Criteria. It defines the requirements for a system of control and transparency for copper-containing products that move through a supply chain.

For mines, smelters, refiners, and other supply chain actors (e.g., semis-fabricators) that are eligible to participate in the Copper Mark, conformance with the Copper Mark Criteria is a pre-requisite to complete the Chain of Custody Standard, though both assessments may be done at the same time.

For supply chain actors further downstream (e.g., manufacturing, end users), the Chain of Custody Standard can be used as a standalone framework.

The CoC Standard, version 1, 1 July 2022 is available HERE (CHI / ESP).

The CoC Standard was developed using the Standard Setting Procedure.  Read more about the process here under “past consultations.”