Production

	Actual Q1 2025	Full Year Guidance 2025
Côté Gold (70%)	51	250 – 280
Westwood (100%)	24	125 – 140
Essakane (90%)	86	360 – 400
Total attributable production (000s oz)	161	735 – 820

Total attributable production for IAMGOLD in 2025 is expected to be in the range of 735,000 to 820,000 ounces. Production is expected to be higher quarter over quarter through 2025 as Côté ramps us to design capacity by the end of 2025 and the grade at Essakane increases during the second half of the year based on the mining sequence. At Westwood, underground throughput and grade is expected to increase from the first quarter through underground process improvments.

Costs

	Actual Q1 2025	Full Year Guidance 2025
Côté Gold
Cash costs ($/oz sold)	$1,260	$950 – $1,100
AISC ($/oz sold)	$1,643	$1,350 – $1,500
Westwood
Cash costs ($/oz sold)	$1,527	$1,175 – $1,325
AISC ($/oz sold)	$2,124	$1,675 – $1,825
Essakane
Cash costs ($/oz sold)	$1,557	$1,400 – $1,550
AISC ($/oz sold)	$1,846	$1,675 – $1,825
Consolidated
Cost of sales1 ($/oz sold)	$1,465	$1,200 – $1,350
Cash costs1,2 ($/oz sold)	$1,459	$1,200 – $1,350
AISC1,2 ($/oz sold)	$1,908	$1,625 – $1,800

1. Consists of Côté Gold, Westwood and Essakane on an attributable basis of 70%, 100% and 90%, respectively.
2. This is a non-GAAP financial measure. See "Non-GAAP Financial Measures".

Capital Expenditures

	Actual Q1 20251			Full Year Guidance 20252
($ millions)	Sustaining	Expansion	Total	Sustaining	Expansion	Total
Côté Gold (IMG share)	$18.2	$3.1	$21.3	$110	$15	$125
Westwood	$15.1	—	$15.1	$70	—	$70
Essakane	$27.9	$2.2	$30.1	$110	$5	$115
Corporate	$61.2 $0.5	$5.3 —	$66.5 $0.5	$290 —	$20 —	$310 —
Total3	$61.7	$5.3	$67.0	$290	$20	$310

1. 100% basis, for Westwood and Essakane, and reflects IAMGOLD’s 70% interest in Côté Gold UJV on an incurred basis.
2. Capital expenditures guidance (±5%).
3. Includes $11 million of capitalized exploration and evaluation expenditures also included in the Exploration Outlook guidance table.

Exploration Outlook

	Actual Q1 2025			Full Year Guidance 2025
($ millions)	Capitalized	Expensed	Total	Capitalized	Expensed	Total
Exploration projects – greenfield	$0.2	$5.5	$5.7	—	$25	$25
Exploration projects – brownfield	$1.9	$0.6	$2.5	$11	$2	$13
Total	$2.1	$6.1	$8.2	$11	$27	$38

Income Taxes Paid and Depreciation Outlook

($ millions)	Actual Q1 2025	Full Year Guidance 2025
Depreciation expense	$79.7	$450 (±5%)
Income taxes paid	$15.2	$120 – $130