Slide 1: Q1 2026 Earnings Conference Call
TSX: GMIN | OTCOQX: GMINF GMIN.GOLD Q1 2026 Earnings Conference Call Thursday, May 14, 2026 All figures are in U.S. dollars unless otherwise noted. Build, Operate & Explore for More.
Slide 2: Cautionary Statements
Cautionary Statements Generally, forward-looking information can be identified by use of words such as “outlook”, “objective”, “may”, “could”, “would” , “will” ,“expect”, “intend”, “estimate”, “forecasts”, “project”, “seek”, “anticipate”, “believes”, “should”, “plans ” “pro forma”, or “continue”, an
Slide 3: Agenda & Speakers
Agenda & Speakers 01 Corporate Highlights 02 Operational Performance 03 Financial Results 04 Growth Projects Update 05 2026 Priorities & Outlook 06 Q&A Louis-Pierre Gignac Julie Lafleur Jean-François Lemonde President & CEO, CFO and VP, Finance VP, Investor Relations and Director 3
Slide 4: Corporate Highlights
Corporate Highlights
Slide 5: Q1 2026 Operating and Financial Highlights
Q1 2026 Operating and Financial Highlights Solid quarterly operating performance, in line with plan Production (koz) Net Income, per share Cash from Operating Activities Free Cash Flow(1) (before change in working capital) 46,360 47,346 $0.55 42,587 $122 $107 $90 31,846 $0.40 $80 $0.35 $70 $61 $56 $
Slide 6: Operational Performance
Operational Performance
Slide 7: Q1 2026 Operational Highlights
Q1 2026 Operational Highlights Production impacted by mine-sequencing; grades/recoveries set to improve in H2 Production Summary Unit Q1 2026 INSIGHTS Total Tonnes Mined kt 5,512 • Gold production of 31,846 ounces in Q1 2026 was in line Ore Tonnes Mined kt 1,020 with the planned processing of lower-
Slide 8: Q1 2026 Operating Cost Breakdown
Q1 2026 Operating Cost Breakdown In millions of $, except as otherwise noted Q1 2026 2026 Guidance INSIGHTS Gold Sold koz 33.8 - • Total cash costs were $1,034 per Operating Expenses $M $31.3 - oz sold; Site-Level AISC of $1,441 Royalties $M $4.8 - per oz sold and AISC of $1,588 per oz sold. The var
Slide 9: Financial Highlights
Financial Highlights
Slide 10: Q1 2026 Financial Highlights
Q1 2026 Financial Highlights Q1 2026 INSIGHTS In millions of $, except as otherwise noted Gold Sold koz 33.8 • Gold ounces sold of 33,776 at a record average realized gold price of $4,143 per ounce, Realized Gold Price USD/oz $4,143 contributing to revenue of $139.9 million, which was reduced by a $
Slide 11: Q1 2026 Cash Position Bridge
Q1 2026 Cash Position Bridge Figures in USD Millions $800 $700 $600 Free Cash Flow $56 million(1) $500 $315 ($110) $400 ($3) $300 $287 $70 ($14) ($88) $200 $191 ($6) ($12) $100 $135 $0 Cash Balance Q4-25Operating Cash Flow Sustaining Capital Starting Cash Oko West Non-Sustaining Other Investing Shar
Slide 12: Q1 2026 Capital Expenditure Breakdown
Q1 2026 Capital Expenditure Breakdown INSIGHTS Sustaining Capital Expenditures 2026 Annual Q1 2026 In millions of $, except as otherwise noted Guidance • Oko West project development capital expenditures for Q1 2026 was Sustaining Capital $2 $38 - $45 $88 million, bringing cumulative spend to $292 m
Slide 13: 2026 & 2027 Operational Guidance
2026 & 2027 Operational Guidance Summary 2026 2027 INSIGHTS Operational & Cost Guidance (2) Guidance Guidance $ millions, unless otherwise indicated • Average annual Gold Production k oz 160 – 190 200 – 235(3) production of 200,000 ounces of gold over the Total Cash Costs(1) $/oz Au sold 736 – 865 6
Slide 14: Growth Projects Update
Growth Projects Update
Slide 15: Oko West Construction Remains on Track
Oko West Construction Remains on Track Continued ramp-up of construction activities Update as of March 31, 2026 Construction on schedule and on budget, with ~$292M spent to date (30% of initial project capital) and ~$525M of capital committed (54% of the total project capital) Detailed engineeri
Slide 16: Indicative Integration Timeline
Indicative Integration Timeline Schedule unchanged; first gold expected in H2 2027 2025 2026 2027 2028 2029 2030 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Permitting Aug 29, 2025: Full Env. Permit Mar 6, 2025: Start of Early Works Early works Construction Apr 28, 2025:
Slide 17: 2026 Priorities & Outlook
2026 Priorities & Outlook
Slide 18: 2026 & 2027 Priorities & Outlook
2026 & 2027 Priorities & Outlook Upcoming milestones and strategic priorities 2026 Completed 2026 Upcoming 2027 2028 All Assets All Assets Oko West Oko West Gurupi TZ Oko West Oko West Oko West Updated MRMR Exploration updates Large lead items Complete detailed Deliver the PEA, Higher produc
Slide 19: Questions? Oko West Construction Progress
Questions? Oko West Construction Progress – as of April 28, 2026 Pre-Leach Thickener & CIP Formworks Power Generation Plant Foundation On the left, we have our Pre-Leach Thickener with our team assembling formworks. On the right, is our CIP tanks (Carbon-in-Pulp) The power plant foundation has reach
Slide 20: Thank you for joining us today!
TSX: GMIN | OTCOQX: GMINF GMIN.GOLD Thank you for joining us today! INVESTOR RELATIONS Jean-François Lemonde Vice President, Investor Relations Phone: 514.299.4926 Email: jflemonde@gmin.gold
Slide 21: Appendix – Additional Information
Appendix – Additional Information 21
Slide 22: G2 Acquisition to Create Regional-Scale Land Package
G2 Acquisition to Create Regional-Scale Land Package 362km2 combined, contiguous land package in a prolific geological region Expanded Regional-Scale Land Position • GMIN significantly increases its footprint in a world-class geological region • Option agreements provide the ability to expand the
Slide 23: Q1 26 AISC to All-In-Cost Reconciliation
Q1 26 AISC to All-In-Cost Reconciliation(1) Q1 26 $M $/oz $1,588/oz In millions of $, except as otherwise noted Revenue $139.9 $4,143 AISC per ounce Q1 26 Free Cash Flow $56.2 $1,663 All-In-Cost Margin $83.7 $2,480 Cash Operating Cost $36.1 $1,070 Gain on Foreign Currency Contracts $(1.2) ($36) $1,7
Slide 24: Q1 26 AISC to Cost of Sales Reconciliation
Q1 26 AISC to Cost of Sales Reconciliation(1) Figures in USD Millions $60.0 $53.6 $50.0 $49.5 $(13.5) $13.3 $(0.2) $40.0 $1.2 $(5.0) $30.0 $20.0 $10.0 $- All-In Sustaining Cost Sustaining Capital Accretion to General and Gain on FX contracts Depreciation Cost of Goods sold Rehabilitation Provision A
Slide 25: Mineral Reserves and Resources
Mineral Reserves and Resources Updated March 12, 2026 M&I Resources of 9.17 Moz @ 1.67 g/t Au, Inferred Resources of 1.17 Moz @ 1.52 g/t Au M&I Resources Inferred Resources Tonnes Grade Ounces Tonnes Grade Ounces Long Life Assets Project kt g/t Au koz Au kt g/t Au koz Au +10 years of TZ 47,655 1.26
Slide 26: Mineral Reserves and Resources – Assumptions and Notes
Mineral Reserves and Resources 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
Slide 27: Mineral Reserves and Resources – Assumptions and Notes
Mineral Reserves and Resources Assumptions and Notes Project specific MRMR disclosures continued: Oko West 20. The qualified person (QP) for this Mineral Resource Estimate (MRE) is Christian Beaulieu, P.Geo., Consulting Geologist for G Mining Services Inc. 21. The effective date of the Oko West Mine