Independent Assurance for Metallurgical Accounting
Refineries and smelters represent the final, high-value stage of metal recovery—where every gram counts. Precise metallurgical accounting is essential for verifying performance, protecting shareholder value, and ensuring transparency between joint-venture partners.
BQCIS acts as an independent third-party to verify, audit, and assure metal accounting systems. Through mass balance reconciliation, we validate all material inputs, in-process streams, and outputs, identifying discrepancies, systemic losses, and hidden inefficiencies.
Our specialists conduct process inspections, reviewing weighing systems, sampling stations, and refining circuits. The result is a clear, defensible understanding of plant efficiency, yield, and recovery—ensuring operational accountability and investor confidence.
Key Verification Activities
Key Benefits of Refinery & Smelter Verification
Assure Metal Accounting Integrity
Independent reconciliation eliminates uncertainty, ensuring that all metal inputs, outputs, and recoveries align with reality.
Identify & Reduce Hidden Losses
Uncovers inefficiencies in sampling, weighing, or smelting circuits, providing data-driven paths to recover lost value.
Enhance Investor & Partner Confidence
Transparent, verified results strengthen trust in production data and reinforce joint-venture accountability.
Support Operational Excellence
Continuous monitoring of sampling and process efficiency ensures optimized recovery and improved profitability.
Success Story
Mass Balance Audit Identifies 1.5 % Gold Circuit Loss
A refinery reported a persistent 1.5 % shortfall between gold input and output—representing millions in unaccounted-for metal.
BQCIS audited the refinery’s sampling, weighing, and process streams. Sampling extended to off-gas dust and slag, exposing hidden retention losses previously excluded from internal accounting.
Our mass-balance data pinpointed the loss origin and enabled the installation of a new baghouse and slag-treatment unit—recovering over 90 % of the lost gold and restoring full accountability.