What does chain of custody or supply chain traceability system mean?
This term anchors traceability to a custody sequence. It should not be replaced by a single certificate, supplier name, or shipment record unless the economic-operator custody chain is represented.
Official definitions by source
EU Conflict Minerals
Regulation (EU) 2017/821 laying down supply chain due diligence obligations for Union importers of tin, tantalum and tungsten, their ores, and gold originating from conflict-affected and high-risk areas
a record of the sequence of economic operators which have custody of minerals and metals as they move through a supply chain
Article 2 definitions for EU conflict-minerals due diligence. Source-specific to tin, tantalum, tungsten, their ores, and gold.
Reference: Article 2, point (e)
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Practical application
Implementation records should capture mineral or metal scope, actor role, source location, conflict-affected/high-risk area assessment, chain-of-custody or traceability record, due-diligence scheme or policy, risk-management decision, audit/disclosure evidence, and relevant OECD Guidance link where applicable.
Minespider commentary
For Minespider, conflict-minerals terms should route sourcing claims into auditable objects: mineral/material scope, importer declaration, smelter/refiner identity, custody sequence, area-risk classification, due-diligence policy, grievance/risk records, and recycled-metal or by-product evidence where relevant.
Common confusions
- Treating conflict-minerals terms as generic ESG due-diligence language outside tin, tantalum, tungsten, ores, and gold scope.
- Collapsing Union importer, smelter/refiner, and downstream product actors into one responsibility role.
- Using chain-of-custody or traceability labels without sequence-of-custody and economic-operator evidence.
Related regulations
Related terms