Copper cathodes
Refined copper cathodes for wire-rod mills, brass mills and copper fabricators.

Natural gold-bearing nuggets for documented business transactions. Value is set by independent assay of fine-gold content and verified weight, never by appearance.
| Attribute | Detail |
|---|---|
| Material | Natural gold-bearing nuggets of varying size and shape |
| Composition | Gold with variable silver and other elements; no standard purity |
| Fineness | Measured by independent assay, in parts per thousand |
| Fine-gold weight | Gross weight × assayed gold fraction |
| Due diligence | Origin, ownership and export documents verified (OECD Due Diligence Guidance) |
| Inspection | Weighing and assay at an agreed independent laboratory or refinery |
| Grade | What it means |
|---|---|
| Assay fineness | Gold content in parts per thousand, for example 900 = 90.0% gold. Reported for the actual material tested. |
| 24 carat | 999 fineness or above (pure gold). Not a description of natural nuggets. |
| 22 carat | 916.7 fineness (91.67% gold). |
| 18 carat | 750 fineness (75% gold). |
| No nugget grade | There is no standard grade for natural nuggets. Each lot is valued on its own assay and weight. |
| Format | Configuration |
|---|---|
| Sealed containers | Secure, tamper-evident containers with lot identification. |
| Chain of custody | Weight, seal numbers and assay references recorded at each handover. |
| Secure transport | By an agreed specialist carrier, insured for the transaction. |
Refining into bullion and supply to the jewellery and investment markets.
Gross weight is multiplied by the assayed gold fraction. For example, 1,000 g at 900 fineness contains 900 g of fine gold.
Proof of origin and ownership, export permits from the country of origin and the records needed for responsible-sourcing checks.
It depends on the product and the lot. The minimum quantity, price and delivery terms are set out in the written quotation.
Refined copper cathodes for wire-rod mills, brass mills and copper fabricators.
Primary aluminium ingots and secondary casting-alloy ingots for remelting, alloying and die casting.