Commodity Ore Grade Geology Powder Factor Flitches Location Copper 1.00% ** Narrow vein 0.7 kg/m 3 2 Africa * Numbers are rounded; ** Average grade of ore polygon; *** Calculated at a copper price of US$5,500/t This African copper mine operates three active open pits. The predominant mineralisation is structural in nature and is found in a narrow-vein which dips differently in each pit. ? Ore polygons are delineated using assay data taken from reverse-circulation drilling performed prior to blast hole drilling ? Blasts are relatively narrow (max width ~25 m (80 ft)), highly confined on both sides and in the front face ? The site mines two flitches of 3 m (9 ft) each on a 6 m (18 ft) bench Lack of accurate blast movement data from BVI solution BMM System accurately

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