Ensuring Integrity for High-Value Materials
In the precious metals trade, a minor discrepancy in sampling can translate into millions in value. BQCIS ensures absolute integrity and impartiality at every stage of the sampling process. Our independent supervision guarantees that every assay reflects the true quality and content of your material.
Our inspectors are trained under ISO 12743 and global best practices to oversee sampling of concentrates and bullion at mines, ports, and refineries. We manage every cut, split, and reduction stage, ensuring that the final sample remains truly representative and tamper-proof.
Through secure seals, serialized tracking, and full Chain-of-Custody documentation, BQCIS maintains a transparent custody trail from collection to lab delivery—providing defensible assurance for both contractual and financial settlement.
Key Sampling & CoC Activities
Key Benefits of Sampling & Chain-of-Custody Assurance
Guarantee Sample Representativeness
Independent supervision ensures unbiased, statistically valid samples that reflect the true composition of your shipment.
Eliminate Risk of Tampering
Secure sealing and documented custody prevent unauthorized interference, ensuring full integrity from mine to lab.
Strengthen Commercial Confidence
Transparent, third-party oversight eliminates disputes and fosters long-term trust between miners, refiners, and traders.
Support Legal & Financial Defensibility
BQCIS custody documentation provides a verifiable chain-of-evidence for trade, arbitration, or insurance claims.
Success Story
Independent Sampling Resolves Gold Concentrate Dispute
A gold mine and its refinery partner faced repeated assay discrepancies on concentrate shipments, delaying payments and eroding trust.
BQCIS implemented independent ISO 12743 sampling supervision and full Chain-of-Custody tracking from site to laboratory, ensuring transparency and security throughout the process.
Both parties achieved matching assay results on supervised shipments, confirming unbiased sampling and restoring confidence. BQCIS was retained for ongoing oversight of all future transactions.