Our Refining Process
Every batch follows the same documented sequence. The chain of custody never breaks.
Step 01
On arrival, every parcel is weighed, photographed, and sealed in the presence of the depositor or their nominated agent. A unique batch number is assigned and tracked through every subsequent step.
Step 02
A representative sample is drawn and split. Fire assay (Cupellation) and ICP-MS are run in parallel. Results are signed off by two independent assayers and shared with the depositor before refining proceeds. Discrepancies above tolerance trigger a re-sample.
Step 03
Approved doré is loaded into a high-performance electric induction furnace under controlled atmosphere. Melt loss is captured and reconciled to ±0.05% mass balance. The melt is granulated for the next stage.
Step 04
Granules pass through aqua regia or Miller chlorination, depending on the input chemistry. Impurities and base metals are dissolved and separated. The resulting precious-metal solution is precipitated and washed to remove residual reagents.
Step 05
Refined gold is cast into the requested format — kilo bars, 100g, 10g, 1g, or grain. Every bar is weighed, stamped with the AGR Kenya hallmark, batch number and assay, and sealed. A retained sample is archived against future verification.
Our automated minting lines ensure absolute weight precision and high-security stampings for institutional-grade bullion.
Quality & Chain of Custody
Every batch produces three records: an inbound receipt, an assay certificate, and an outbound seal. These records are retained for the regulatory minimum and are available to depositors and to authorised auditors on demand.
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