The OECD Due Diligence Guidance provides a framework and detailed due diligence recommendations ‚to help companies respect human rights and avoid contributing to conflict through their sourcing decisions, including the choice of their suppliers‚ (Introduction). It is for use by any company potentially sourcing minerals or metals from conflict-affected and high-risk areas. It includes a Supplement on Tin, Tantalum and Tungsten and a Supplement on Gold.