Sample recovery was measured by weighing bulk recovered samples. Samples were logged visually for recovery, moisture and contamination. The majority of RC samples were logged as dry and sample contamination in RC holes is not considered a significant risk to the reliability of resource estimates. Reject RC samples have been retained at site in "sample farms" with all assay pulps retained at the relevant laboratory for 3 months before return to site for long term storage. Sample Analytical Methods The majority of sample preparation has been carried out on site at Yaouré in a dedicated sample preparation facility owned and operated by Perseus. Sample preparation typically comprised drying, crushing to -2 millimetres and pulverising of a 1.5 kg subsample. Internal laboratory checks required at least 85% of the pulp passing -75 microns.