In 2020, the Organisation for Economic Cooperation and Development (OECD) launched a project to develop a methodology to evaluate the extent to which companies embrace the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas, including how they align with its core elements, the 5-Step framework and the Annex II Model Policy. This metric belongs to that methodology.

The OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas (OECD Guidance) was developed to provide recommendations to help companies respect human rights and avoid contributing to conflict through their mineral purchasing decisions and practices. The OECD Guidance is for use by any company potentially sourcing minerals or metals from conflict-affected and high-risk areas.