Mr. David Smith reports

IAMGOLD ANNOUNCES CHANGES TO THE BOARD OF DIRECTORS

Iamgold Corp.'s Ian Ashby, who has served on the company's board of directors since February, 2022, has retired, and the company has appointed Anne Marie Toutant as an independent director to the board. These changes are effective as of today, Nov. 9, 2023.

David Smith, chair of the Iamgold, extended his appreciation for Mr. Ashby's service. Mr. Smith remarked: "Ian has been an invaluable member of our board, and we want to express our deepest gratitude for his service and the valuable insights he brought during a critical time for our company. His contributions and leadership of the Cote project review committee were instrumental during the advancement of Cote Gold. On behalf of the whole board, we wish him well in the future."

Ms. Toutant, who previously served on the board from December, 2020, to May, 2023, brings her extensive experience and expertise to the company. "We are excited to welcome Anne Marie back to the Iamgold board," Mr. Smith continued. "Her expertise and past experience with Iamgold, and Cote Gold in particular, will make for a smooth transition to fill this important role. Anne Marie has a profound technical background which will prove to be a significant asset as Iamgold prepares to ramp up production at Cote Gold early next year, bringing on line one of Canada's largest gold mines which will be a model for modern mining in the industry for many years to come."

Ms. Toutant has a proven record as an executive in the mining industry for over 35 years. In her career, Ms. Toutant held executive roles at Suncor Energy overseeing the initial start-up and operations of the $18-billion Fort Hills project in Northern Alberta, which included the deployment and accelerated implementation of Suncor's autonomous haulage system, developing a multiyear digital transformation strategy for mining and the final reclamation of Wapisiw Lookout -- the first reclaimed oil sands tailings pond in Canada. Prior to this, Ms. Toutant held operational and technical management positions at metallurgical and thermal coal mines for Luscar Ltd. and Cardinal River Coals Ltd. and was highlighted as one of Canada's early female mine managers in 1998. These experiences contributed to her passions around safety, mentoring, sustainability and technology.

Ms. Toutant is contributing as a non-executive director in the public and non-profit sectors. She served on charitable and industry related boards including the Suncor Energy Foundation and the Mining Association of Canada (MAC). She is currently the past president of the Canadian Institute of Mining and Metallurgy (CIM) and a founding member of Women in Mining Calgary branch (WIM YYC).

Ms. Toutant holds a bachelor of science degree in mining engineering from the University of Alberta and is registered as a professional engineer in the province of Alberta.

About Iamgold Corp.

Iamgold is an intermediate gold producer and developer based in Canada with operating mines in North America and West Africa. The company is building the large-scale, long-life Cote gold project in Canada in partnership with Sumitomo Metal Mining Co. Ltd., which is expected to commence production in early 2024. In addition, the company has an established portfolio of early-stage and advanced exploration projects within high potential mining districts in the Americas. Iamgold employs approximately 3,300 people and is committed to maintaining its culture of accountable mining through high standards of environmental, social and governance (ESG) practices, including its commitment to zero harm in every aspect of its business.