Guinea launches first refinery with local gold refining rules

Guinea has inaugurated its first gold refinery, Nimba Gold Refinery, in Conakry, with a capacity to process up to 733 tons of gold per year, according to Ecofin Agency. This significant development coincides with new government regulations that will require all gold miners, from artisanal to major producers, to refine their gold in Guinea rather than export it in unrefined form.

The new regulation comes with a 90-day transition period starting in July 2026. During this time, miners can still export unrefined gold while preparing for compliance with the domestic refining mandate. The transition ends on October 6, 2026, after which only gold refined in Guinea can be exported. Licensed refineries will have priority to process all nationally produced gold.

Government officials are now negotiating with industrial and semi-industrial miners to finalize procedures for compliance. The central bank is planning to purchase up to 30% of gold output from larger operators, though it is not clear if this supply will flow to the new refinery or meet other state objectives.

Ecofin Agency cites official figures showing Guinea exported 2.33 million troy ounces of gold, about 72 tons, with 641,275 troy ounces from industrial mines and 103,692 troy ounces from semi-industrial operations. Mining firms such as PDI Gold and AngloGold Ashanti are in discussions with authorities on meeting the new rules. PDI Gold has been considering on-site refining to reach the 95.5% minimum purity required for export.

Impacts on supply chain and provenance

For physical gold buyers, both within Guinea and internationally, the requirement for domestic refining may alter the supply chain. Historically, a large share of Guinea’s gold was shipped abroad in unrefined form, where it was processed in countries like Switzerland or the United Arab Emirates. Refining locally may support better traceability, as the place of origin is more likely to be documented at the source.

These changes will likely influence how gold reaches international markets. Refiners and traders abroad are expected to receive material that already meets the minimum 95.5% purity threshold, which may streamline processes for verifying purity or origin. However, transparency will ultimately depend on the oversight, audit, and record-keeping practices in Guinea's refinery and export system.

We think physical metal buyers may be most interested in whether gold refined under these new rules can be reliably traced back to its source in Guinea. While new regulations set a framework for domestic refining and documentation, the effectiveness of provenance tracking will rely on how thoroughly records are kept and audits are enforced at the refinery and export level. For the rule to have real impact, documentation, operational transparency and public reporting will be key to ensuring confidence in Guinea's gold supply.

Source: Guinea Opens Its First Gold Refinery as New Rules Require Miners to Refine Locally

This article is general information, not investment advice. Facts from other publications are their reporting, linked above.