Slide 1: Q2 2026 Earnings Results Conference Call
Q2 2026 EARNINGS RESULTS CONFERENCE CALL AUG 7, 2026
Slide 2: Cautionary Statement
CAUTIONARY STATEMENT All information included or incorporated by reference in this MD&A, including any information as to the Company’s vision, strategy, future financial or operating performance and other statements that express management’s expectations or estimates of future performance or impact,
Slide 3: Cautionary Statement
CAUTIONARY STATEMENT CAUTIONARY NOTE TO U .S . INVESTORS REGARDING DISCLOSURE OF MINERAL RESERVE AND MINERAL RESOURCE ESTIMATES Disclosure regarding the Company’s mineral properties, including with respect to mineral reserve and mineral resource estimates, included in this presentation, was prepared
Slide 4: Overview
OVERVIEW A LEADING, MODERN CANADIAN-FOCUSED MULTI-ASSET PRODUCER • Côté Gold: One of Canada’s largest open pit gold mines, a model for modern mining, with significant growth potential • Westwood: Quebec underground success story, generating positive cashflow with a revised technical approach to unde
Slide 5: Q2 Operating Highlights
Q2 OPERATING HIGHLIGHTS OPERATING RESULTS RESPONSIBILITY Q2 2026 Q2 2025 YTD 2026 2026 Guidance • Q2 TRIFR of 0.70, with YTD TRIFR of 0.56 Côté Gold (attr.) koz 67.3 67.0 119.6 270 – 310 • Zero significant environmental incidents reported in Q2 Westwood (100%) koz 32.4 29.4 68.6 110 – 130 Essakane (
Slide 6: Q2 Financial Highlights
Q2 FINANCIAL HIGHLIGHTS Q2 2026 CASH FLOW RECONCILIATION 01.4 M $5 Cash @ Mar 31, 2026 $550.2 : sh Operating activities Ca 4 5.7 M +$442.9 (before WC) Operating $1.35B Taxes paid -$72.4 TOTAL LIQUIDITY : $8 Δ W/C & stockpiles, ty +$74.6 ARO, etc va ili c A ila a ble C re d it F Capital expenditures
Slide 7: Financial Highlights
FINANCIAL HIGHLIGHTS Q2 FINANCIAL HIGHLIGHTS (In $ millions, unless otherwise stated) Q2 2026 Q2 2025 YTD 2026 CASH FLOW & BALANCE SHEET Revenues $856.9 $580.9 $1,887.0 • Mine-site free cash flow of $ 368.9M (up 163% y/y) | YTD: $893.5 M Gross profit $415.1 $198.8 $985.8 EBITDA 1 $495.3 $283.8 $1,15
Slide 8: Operations
OPERATIONS
Slide 9: Côté Gold
2026 (100% basis, unless otherwise stated) Q2 2026 Q2 2025 YTD 2026 CÔTÉ GOLD (70% Interest ) Ore mined kt 3,072 3,170 6,625 Guidance Grade mined g/t 0.86 0.95 0.93 Q2 OVERVIEW 11,736 11,808 21,062 Material mined – total kt ~48,000 • Production (70%): 67,300 oz | YTD: 119,600 oz Ore milled kt 2,873
Slide 10: Côté Gold Costs
CÔTÉ GOLD (70% Interest ) Q2 COSTS • Cash costs1 (excluding royalties) of $1,245/oz, cash costs1 of $1,554/oz & AISC1 of $2,082/oz in Q2 • Mining costs averaged $4.49/t, further improvements expected with additional fleet availability and expanded operating area in pit to improve efficiencies • Mill
Slide 11: Côté Expansion
CÔTÉ EXPANSION MINERAL RESERVE & RESOURCE ESTIMATE UPDATED MINE PLAN Tonnes Grade Ounces • Updated technical report and mine plan in Q4 2026 to outline (Resources effective Mar 31, 2026; Reserves effective Dec 31, (000’s) (g/t) (000’s) longer mine life and increased reserves at an increased capacity
Slide 12: Westwood Complex
2026 Q2 2026 Q2 2025 YTD 2026 WESTWOOD COMPLEX (100% basis, unless otherwise stated) Guidance Ore mined – UG kt 104 98 210 Ore mined – OP kt 109 315 169 Q2 OVERVIEW Ore milled kt 287 323 590 ~1,200 • Production of 32,400 oz | YTD: 68,600 oz Head grade – UG g/t 8.40 7.38 9.1 • Mine-site free cash flo
Slide 13: Westwood Complex Mineral Reserve & Resource Estimate
WESTWOOD COMPLEX MINERAL RESERVE & RESOURCE ESTIMATE3 Tonnes Grade Ounces COSTS (as of Dec 31, 2025) (000’s) (g/t) (000’s) Proven & Probable (Westwood) 3,462 9.72 1,082 • Cash costs1 of $1,606/oz & AISC1 of $2,163/oz in Q2 Proven & Probable (Grand Duc) 1,896 1.10 67 • Underground mining costs were $
Slide 14: Essakane
2026 (100% basis, unless otherwise stated) Q2 2026 Q2 2025 YTD 2026 Guidance ESSAKANE (90% interest prior to Q2 2025; 85% thereafter) Ore mined Mt 2.5 2.2 4.7 Material mined – total Mt 12.0 10.7 23.9 43 – 46 Q2 OVERVIEW Strip ratio w:o 3.8 4.0 4.1 3.0 – 4.0 • Production (attr .) of 88,400 oz | YTD:
Slide 15: Essakane Mineral Reserve & Resource Estimate
ESSAKANE (90% interest prior to Q2 2025; 85% thereafter) MINERAL RESERVE & RESOURCE ESTIMATE3 Category Tonnes Grade Ounces COSTS (as of Dec 31, 2025) (000’s) (g/t) (000’s) • Cash costs1 (excl. royalties) of $1,214/oz, Cash costs1 of $1,724/oz & Reserves AISC1 of $2,201/oz in Q2 Proven (stockpile) 22
Slide 16: Exploration
EXPLORATION
Slide 17: Nelligan Mining Complex
NELLIGAN MINING COMPLEX CREATING THE NEXT GREAT CANADIAN MINING CAMP • IAG completed acquisitions of Northern Superior and Orbec in Croteau Est 100%, Au December 20251 - exploration • Nelligan Mining Complex total combined Mineral Resources2,3: 4.3 Moz Indicated (0.99 g/t Au) and 7.5 Moz (1.08 g/t A
Slide 18: IAMGOLD | Ese.
IAMGOLD | Ese.
Slide 19: Gold Mineral Reserves
1,2,3 GOLD MINERAL RESERVES – 100% BASIS As of December 31, 2025 PROVEN PROBABLE P+P MINERAL 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) Côté Gold3 OP Canada 70% 116,055 1.05 3
Slide 20: Gold Mineral Resources
1,2,3,4,5 GOLD MINERAL RESOURCES – 100% BASIS MEASURED INDICATED MEASURED + INDICATED INFERRED Location Ownership Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces Tonnes Grade Ounces DEPOSIT Type* (000’s) (g/t) (000’s) (000’s) (g/t) (000’s) (000’s) (g/t) (000’s) (000’s) (g/t) (000’s) Côté
Slide 21: Graeme Jennings
GRAEME JENNINGS, VP, BUSINESS DEVELOPMENT & INVESTOR RELATIONS 416 -388 -6883 TSX: IMG | NYSE: IAG | www.iamgold.com 21