SGS Accra Laboratory Partnership – 100% First-Pass Assay Acceptance Across 312 Shipments

From 2023 to 2025, CM MINING partnered with SGS Accra Laboratory to validate 412,000 kilograms of gold and 89,000 metric tons of copper concentrate sourced from Ghanaian operations. This collaboration covered 312 high-value shipments destined for refineries in Switzerland, Dubai, and China representing $11.4 billion in facilitated trade under LBMA, EUDR, and OECD compliance frameworks.

Challenge

Global buyers increasingly rejected shipments due to assay discrepancies between field samples and lab results a risk amplified by Ghana’s humid climate affecting sample integrity during transport. Even minor variances (e.g., 0.3% gold purity) triggered costly reprocessing or contract penalties.

Solution

CM MINING and SGS Accra co-designed a sealed-chain protocol: tamper-proof sample containers with GPS-tracked custody logs, immediate on-site drying, and same-day lab intake. Field teams used calibrated XRF devices pre-submission, while SGS implemented dual-assay verification (fire + ICP-MS) for all batches over 500 kg. Digital reports were auto-synced to buyer portals within 4 hours.

Outcome:

All 312 shipments achieved 100% first-pass acceptance at destination refineries. Zero disputes arose over assay results. SGS Accra designated CM MINING a Strategic Partner, granting priority processing and dedicated lab capacity through 2027.

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SGS Accra Laboratory Partnership – 100% First-Pass Assay Acceptance Across 312 Shipments

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