Ghana Gold Board tightens purity testing standards with XRF method from October

Ghana's gold industry is set for a significant overhaul in how the purity of locally purchased gold is assessed, as the Ghana Gold Board (GoldBod) introduces stricter testing standards effective October 1, 2026. The move marks a departure from long-standing practices and signals the Board's commitment to modernising Ghana's gold sector and ensuring greater accuracy in valuation and payment.

The new framework, outlined in a compliance notice issued on September 28, establishes X-Ray Fluorescence (XRF) testing as the definitive method for determining the purity of gold doré—semi-refined gold ore—purchased by the Board and all licensed buyers. This represents a fundamental shift from the Water Density method, which has been the industry standard for decades but will now only serve as an indicative tool rather than a basis for final payment decisions.

What changes and what stays the same

Under the new regime, payment for all gold transactions will be calculated based on purity levels confirmed through XRF testing. However, GoldBod has built in flexibility for operational realities. Where licensed buyers face genuine logistical or operational obstacles in accessing XRF technology, or where both buyer and seller mutually agree to continue using the Water Density method, transactions may proceed—but with a 0.7 percent purity discount applied to the seller's payment.

To ensure consistency and reliability, GoldBod has also introduced tolerance thresholds for XRF testing. Successive XRF test results for the same gold transaction must remain within plus or minus 0.1 percent of each other. Any variance exceeding this range must be verified and resolved before the transaction is completed or reported to the Board. This precision requirement reflects international best practices and aims to eliminate disputes over purity valuations that have historically affected miners and small-scale operators.

Why it matters for Ghana

For Ghana's gold sector—a cornerstone of the national economy—these changes carry substantial implications. Gold is the country's largest export earner and a critical source of foreign exchange. Standardising testing methodology at a higher technical level reduces opportunities for fraud, undervaluation, or payment disputes that have long plagued artisanal and small-scale miners in particular.

The introduction of XRF testing, a non-destructive and more accurate technology, should provide greater transparency and fairness in pricing. This may encourage formalisation within the sector, as legitimate operators gain confidence that their gold will be valued accurately. However, the 0.7 percent discount for Water Density purchases may create a two-tier market, potentially disadvantaging buyers without immediate XRF access in remote areas.

All aggregators and licensed gold buyers must comply by the October deadline. GoldBod has made clear that these requirements form part of licence conditions, and non-compliance could trigger regulatory action under the Ghana Gold Board Act, 2025. The Board has directed all stakeholders to ensure full readiness ahead of implementation.