Slide 1: Q2 2025 Conference Call
Q2 2025 RESULTS CONFERENCE CALL TSX: IMG l NYSE: IAG l www.iamgold.com Q2 2025 CONFERENCE CALL August 8, 2025
Slide 2: Cautionary Statement
Q2 2025 RESULTS CONFERENCE CALL Cautionary Statement CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION All information included or incorporated by reference in this presentation, including any information as to the Company’s vision, strategy, future financial or operating performance and ot
Slide 3: Technical Information and Qualified Persons
Q2 2025 RESULTS CONFERENCE CALL Technical Information and Qualified Persons CAUTIONARY NOTE TO U.S. INVESTORS REGARDING DISCLOSURE OF MINERAL RESERVE AND MINERAL RESOURCE ESTIMATES The mineral resource and reserve estimates contained in this presentation have been prepared in accordance with NI 43-1
Slide 4: Overview
Q2 2025 RESULTS CONFERENCE CALL Overview BUILDING A LEADING, MODERN CANADIAN-FOCUSED MULTI-ASSET PRODUCER • Côté Gold: Canada’s newest large-scale open pit gold mine, a model for modern mining, with significant growth and expansion potential • Westwood: Quebec underground success story, generating p
Slide 5: Q2 Highlights
Q2 2025 RESULTS CONFERENCE CALL Q2 Highlights OPERATING RESULTS Q2 2025 Q2 2024 YTD 2025 YTD 2024 RESPONSIBILITY & ACCOUNTABILITY Côté Gold (attr.) koz 67 20 118 21 TRIFR (total recordable injuries/200,000 hours) of 0.41 Westwood (100%) koz 29 35 53 67 2024 Sustainability Report published on May 6,
Slide 6: Guidance for 2025
Q2 2025 RESULTS CONFERENCE CALL Guidance for 2025 + GOLD PRODUCTION CASH COST1 AISC1 (attributable ounces) ($/ounce sold) ($/ounce sold) YTD GUIDANCE Guidance Guidance YTD cost YTD cost 2025 2025 Previous Guidance Previous Guidance 118,000 250,000 – 280,000 Côté Gold (169,000 @ 100%) (360,000 – 400,
Slide 7: Financial Results: Liquidity
Q2 2025 RESULTS CONFERENCE CALL Financial Results M 23.8 LIQUIDITY (as at June 30, 2025) $2 h: Cash and equivalents1 of $223.8 million and total liquidity2 of $616.5 million Cas • $85.1 million of cash and equivalents held by Essakane 3 91 . 7 M • $56.4 million held by Côté Gold (on 70% basis) $616.
Slide 8: Financial Results
Q2 2025 RESULTS CONFERENCE CALL Financial Results FINANCIAL HIGHLIGHTS Q2 2025 Q2 2024 YTD 2025 YTD 2024 (In $ millions, unless otherwise stated) Q2 FINANCIAL REVIEW Revenues $580.9 $385.3 $1,058.0 $724.2 Gold revenues of $580.9 million from sales of 182,000 ounces at realized average price of Gross
Slide 9: Operations
Q2 2025 RESULTS CONFERENCE CALL Operations 9
Slide 10: Côté Gold
Q2 2025 RESULTS CONFERENCE CALL Côté Gold (70% interest) (100% basis, unless otherwise stated) Ore mined kt Q2 2025 3,170 Q2 2024 2,109 YTD 2025 6,285 YTD 2024 4,053 Grade mined g/t 0.95 0.93 0.87 0.83 Q2 OPERATING HIGHLIGHTS & MILESTONES Material mined – total kt 11,808 10,514 22,563 18,111 Gold pr
Slide 11: Côté Gold Processing Plant Ramp-Up
Q2 2025 RESULTS CONFERENCE CALL Côté Gold CÔTÉ GOLD PROCESSING PLANT RAMP 42,000 PROCESSING RAMP UP 36,000 Mill throughput 2.9M tonnes at head grade of 1.10 g/t and 93% recoveries 30,000 Daily throughput (tonnes) • 100% nameplate achieved for 30-day average in June • Annual plant throughput expected
Slide 12: Côté Gold: Growth
Q2 2025 RESULTS CONFERENCE CALL Côté Gold: Growth CÔTÉ GOLD PROJECT – MINERAL RESERVES & RESOURCES (2024)1,2 Tonnes Grade Contained (100%) Attributable Contained Classification (millions) (g/t Au) (Moz Au) (Moz Au) INVESTIGATE OPTIMIZATIONS & POTENTIAL OPERATING EFFICIENCIES Côté Gold Deposit Côté d
Slide 13: Westwood Complex
Q2 2025 RESULTS CONFERENCE CALL Westwood Complex (100% basis, unless otherwise stated) Ore mined – underground kt Q2 2025 98 Q2 2024 89 YTD 2025 187 YTD 2024 172 Ore mined – other sources kt 315 128 507 248 OPERATIONAL REVIEW Ore milled kt 323 302 605 551 Gold production of 29,000 ounces in Q2 as mi
Slide 14: Essakane
Q2 2025 RESULTS CONFERENCE CALL Essakane (90% interest H1 YTD | 85% interest thereafter) (100% basis, unless otherwise stated) Ore mined kt Q2 2025 2,168 Q2 2024 2,195 YTD 2025 4,615 YTD 2024 5,653 Material mined – total kt 10,741 11,009 21,602 22,349 Q2 OPERATIONAL REVIEW Strip ratio w:o 4.0 4.0 3.
Slide 15: Chibougamau: Emerging District
Q2 2025 RESULTS CONFERENCE CALL Chibougamau: Emerging District Nelligan Longitudinal Section NELLIGAN (100% INTEREST) • Located 45 kilometres southwest of Chibougamau, Québec • Updated resource estimate1(on 100% basis): Cut-off Category Grade Tonnage Grade Contained Au (g/t Au) (Mt) (g/t Au) (koz Au
Slide 16: Graeme Jennings, VP, Investor Relations
Q2 2025 RESULTS CONFERENCE CALL Graeme Jennings, VP, Investor Relations 416-388-6883 16
Slide 17: Gold Mineral Reserves – 100% Basis
Q2 2025 RESULTS CONFERENCE CALL 1,2,3 Gold Mineral Reserves – 100% Basis As of December 31, 2024 PROVEN PROBABLE TOTAL RESERVES Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces DEPOSIT Type* Location Ownership (000’s) (g/t) (000’s) (000’s) (g/t) (000’s) (000’s) (g/t) (000’s) Burkina Essak
Slide 18: Gold Mineral Resources – 100% Basis
Q2 2025 RESULTS CONFERENCE CALL 1,2,3 Gold Mineral Resources – 100% Basis (Measured & Indicated Resources are inclusive of Proven & Probable Reserves) As of December 31, 2024 MEASURED INDICATED MEASURED + INDICATED INFERRED Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Oun
Slide 19: Graeme Jennings, VP, Investor Relations
Q2 2025 RESULTS CONFERENCE CALL Graeme Jennings, VP, Investor Relations 416-388-6883 TSX: IMG l NYSE: IAG l www.iamgold.com