Investor Presentaiton

Tocantinzinho Mineral Inventory - Robust mineral reserve totaling 2.0Moz Au at 1.31g/t Mineral reserves optimized for $1,400/oz gold price Additional conservativism added by applying 5.5% mining dilution 200 SE Excellent resource to reserve conversion (97%) Mineral resource estimate supported by 144 drillholes (~45km of drilling) completed between 2004-2010 NW Classification Proven Probable Total P&P Mineral Reserves Tonnes Grade Gold Contained Gold 000's g/t Au 000's oz Au 17,973 1.46 842 30,703 1.22 1,200 48,676 1.31 2,042 Notes CIM definitions were followed for mineral reserves. Mineral reserves are estimated for a gold price of $1,400/oz. Mineral reserve cut-off of grade of 0.36 g/t. A dilution skin width of 1 m was considered resulting in an average mining dilution of 5.5% Bulk density of ore is variable with an average of 2.67 t/m³. The average strip ratio is 3.36:1/Numbers may not add due to rounding. Effective date of the estimate is December 10, 2021. AU grade bins 0.5 100m 10.31 Long Section Looking South-West Mineral Resources Tonnes Grade Gold Contained Gold Classification 000's g/t Au 000's oz Au Measured 17,609 1.49 841 Indicated 30,505 1.29 1,261 Total M+I 48,114 1.36 2,102 Inferred 1,580 0.99 50 Note: Mineral resources are not mineral reserves and do not have demonstrated economic viability. All figures are rounded to reflect the relative accuracy of the estimates. Assays were capped where appropriate. Open pit mineral resources are reported at a cut-off grade of 0.30 g/t gold. The cut-off grades are based on a gold price of US$1,600 per troy ounce and metallurgical recoveries of 78% for gold in saprolite rock, 90% for gold in rock, and 82% for gold in tailings. Effective date of the estimate is December 10, 2021. TSXV:GMIN 26

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