Fourth Quarter and Full Year 2021 Operational Results

In 2021, IAMGOLD achieved attributable gold production of 601,000 ounces, in line with updated guidance of 565,000 to 605,000 ounces, and including 153,000 ounces produced in the fourth quarter. Annual revenues were approximately $1.2 billion based on attributable gold sales of 590,000 ounces. Fourth quarter revenues were approximately $295 million based on attributable gold sales of 152,000 ounces.

The Company’s consolidated cash costs and consolidated AISC for its three operating mines are expected to be between the 2021 updated guidance ranges of $1,115 and $1,150 per ounce sold and $1,395 and $1,435 per ounce sold, respectively, excluding the impact of potential net realizable value adjustments on long term stockpiles. Long term stockpiles include historic costs which relate to ore mined in prior periods not expected to be processed in 2022. Capital expenditures for 2021 are expected to come in line with expectations, with Côté Gold preliminary spending in the fourth quarter estimated at $147 million, comparing well with guidance estimates of $150 million.