Reserves & Resources

Note: Resources are inclusive of reserves. Prepared in accordance with the standards of the Canadian Institute of Mining, Metallurgy and Petroleum (“CIM”) (2014) and the best practices described by CIM (2019). Effective dates and full list of underlying assumptions can be found in the Appendix. As of December 31, 2025, announced March 12, 2026.

Appendix A: Consolidated Mineral Reserves by Project & Mining Method (Effective Dec 31, 2025)

Appendix B: Consolidated Mineral Resources by Project and Mining Method - Inclusive of Reserves (Effective Dec 31, 2025)

Appendix C: Assumptions and Notes

1. The Mineral Resources described above have been prepared in accordance with the standards of the Canadian Institute of Mining, Metallurgy and Petroleum (“CIM”) (2014) and the best practices described by CIM (2019).
2. Rounding of values to the '000s may result in apparent discrepancies.
3. Mineral resources are inclusive of mineral reserves.
4. The classification has been classified as Measured, Indicated and Inferred Mineral Resources according to drill spacing. The density has been applied based on measurements taken on drill core and assigned in the block model by weathering type and lithology.
5. Tonnage has been expressed in the metric system, and gold metal content has been expressed in troy ounces.
6. The tonnages have been rounded to the nearest 1,000 tonnes, and the metal content has been rounded to the nearest 1,000 ounces. Totals may not add up due to rounding errors.
7. These Mineral Resources assume no mining dilution and losses.

Project specific MRMR disclosures are as follows:

Gurupi

1. The Qualified Person for the Gurupi MRE is Pascal Delisle, P.Geo. (OGQ #1378) and is not considered “independent” of the corporationwithin the meaning of section 1.5 of NI 43-101.
2. The effective date of the Mineral Resource Estimate is February 3, 2025.
3. The cut-offs used to report Contact and Blanket Mineral Resources are 0.34 g/t Au in transition and 0.35 g/t Au in rock; for Chega Tudo are 0.36 g/t Au in transition and 0.37 g/t Au in rock.
4. No Measured Mineral Resource has been estimated for Gurupi.
5. This MRE is based on subblock models with a main block size of 5 m × 5 m × 5 m, with subblocks of 1.25 m × 1.25 m × 1.25 m for Cipoeiro (Blanket and Contact deposits) and a main block size of 5 m × 5 m × 5 m, with subblocks of 2.5 m × 1.25 m × 2.5 m for Chega Tudo, and have been reported inside an optimized pit shell. Gold grades were interpolated with 1 m composites using Ordinary Kriging for all mineralized domains.
6. Open pit optimization parameters and cut-off grades assumptions are as follows:
   • Gold price of $1,950/oz.
   • Total ore-based costs for Cipoeiro (Blanket and Contact deposits) of $16.50/t for transition with a 85.0% processing recovery and $17.00/t for rock based on 85.0% processing recovery.
   • Total ore-based costs for Chega Tudo deposits of $18.50/t for transition with a 88.9% processing recovery and $19.00/t for rock based on 88.9% processing recovery.
   • Cipoeiro overall open pit slope angles of 47° in transitional and 47° in rock.
   • Chega Tudo deposits overall pit slope angles of 45° in transitional and 45° in rock.
   • Royalty rate of 6.75%.
7. These Mineral Resources are not Mineral Reserves as they have not demonstrated economic viability. The quantity and grade of reported Inferred Mineral Resources in this news release are uncertain in nature and there has been insufficient exploration to define these resources as indicated or measured; however, it is reasonably expected that most of the Inferred Mineral Resources could be upgraded to Indicated Mineral Resources with continued exploration.

Tocantinzinho

1. The Qualified Person for the Mineral Resources Estimate is Julie-Anaïs Debreil, Ph.D., P.Geo (OGQ #2106), for the Mineral Reserve estimate is Antoine Champagne, P.Eng. (OIQ #137814) .
2. Effective date of the estimates is December 31, 2025.
3. Based on regular block models with a block size of 5 m × 5 m × 5 m, and reported inside an optimized pit shell. Gold grades were interpolated with 2 m composites using Ordinary Kriging for all mineralized domains.
4. Gold price assumption: $1,950/oz for Resources and $1,800/oz for Reserves. Cut-off grades (Resources): 0.35 g/t (tailings), 0.47 g/t (saprolite), 0.39 g/t (rock). Cut-off grades (Reserves): 0.38 g/t (tailings), 0.50 g/t (saprolite), 0.42 g/t (rock). Metallurgical recovery varies from 70.8% (saprolite) to 90.0% (rock). Royalty rate: 3%.

Oko West

1. Mineral Reserves are estimated using a long-term gold price of $1,800/oz. Mineral Resources are estimated using a gold price of $1,950/oz.
2. The qualified person for the Mineral Reserve estimate is Alexandre Burelle, P.Eng. (OIQ #5019855), Mine planning and financial analysis consultant, G Mining Services Inc. The qualified person for the Mineral Resource estimate is Christian Beaulieu, P.Geo., Consulting Geologist, G Mining Services Inc. (OGQ #1072).
3. Mineral Resource for Open Pit are estimated at a cut-off grade of 0.38, 0.34, and 0.30 g/t Au for Rock, Transition, and Saprolite/Alluvium/Colluvium. Mineral Resource for Underground Mine are estimated at a cut-off grade of 1.35 g/t Au.
4. Mineral Reserves for Open Pit are estimated at a cut-off grade of 0.41, 0.37, and 0.33 g/t Au for Rock, Transition, and Saprolite.
5. The Open Pit Strip Ratio is 6.83:1 and Dilution factor is 14%.
6. Mineral Reserves for Underground Mine are estimated at a cut-off grade of 1.70 g/t Au.
7. The underground mine dilution factor is 10% including 4% for the backfill.
8. For the underground a minimum mining width of 5 m was used.
9. The numbers may not sum due to rounding; rounding followed the recommendations in NI 43-101.
10. The mine design and Mineral Reserve estimate have been completed to a level appropriate for feasibility studies. The Mineral Reserve estimate stated herein is consistent with the CIM definitions and is suitable for public reporting. Average Gold Recovery: 93%. Royalty rate: 8% (Open Pit), 3% (Underground). After-Tax NPV5% of $2,163 million at $2,500/oz gold price.