Mr. Renaud Adams reports

IAMGOLD COMPLETES FINAL DELIVERY AND CONCLUSION OF GOLD PREPAY ARRANGEMENTS

Iamgold Corp. has completed the final delivery of gold ounces as required under its gold prepay arrangement, thereby concluding the 150,000-ounce gold prepay arrangements that were implemented as part of a previous financing package for the construction of the Cote gold mine.

"Today marks a significant cash flow inflection point for Iamgold as we successfully conclude our gold prepay arrangements," said Renaud Adams, president and chief executive officer of Iamgold. "In the first half of this year, the company delivered the remaining 75,000 ounces of gold, under the arrangements of which only a portion had some exposure to the gold price. This is equivalent to approximately $200- to $225-million of cash flow that the company would have received in H1 2025 if the gold prepay arrangements were not in place.

"The conclusion of the arrangements comes at a strategically favourable time for the company as the Cote gold mine reached nameplate throughput earlier this week and the expectations of improved operating results at all our assets in the second half of the year. Combined with the current favourable gold price environment, the company is well positioned to generate stronger free cash flows and commence a disciplined deleveraging strategy."

About Iamgold Corp.

Iamgold is an intermediate gold producer and developer based in Canada with operating mines in North America and West Africa, including Cote (Canada), Westwood (Canada) and Essakane (Burkina Faso). On March 31, 2024, the company commenced production at Cote, in partnership with Sumitomo Metal Mining Co. Ltd., a mine that has the potential to be among the largest gold mines in Canada. In addition, the company has an established portfolio of early-stage and advanced exploration projects within high-potential mining districts. Iamgold employs approximately 3,700 people and is committed to maintaining its culture of accountable mining through high standards of environmental, social and governance practices. Iamgold is listed on the New York Stock Exchange (NYSE: IAG) and the Toronto Stock Exchange (TSX: IMG).

We seek Safe Harbor.