Toronto, Ontario--(Newsfile Corp. - February 4, 2022) - IAMGOLD Corporation (NYSE: IAG) (TSX: IMG) ("IAMGOLD" or the "Company") announces that the Company has filed a technical report titled "Technical Report on the Rosebel Gold Mine, Suriname" (the "Rosebel Technical Report") prepared by Rosebel Gold Mines N.V. ("RGM"), a subsidiary of the Company, in collaboration with WSP Global Inc. ("WSP") and SRK Consulting (Canada) Inc. ("SRK") in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101"), as reported in the Company's news release dated January 12, 2022.

The Rosebel Technical Report was prepared by representatives of IAMGOLD, WSP and SRK, each of whom is a "qualified person", as defined in NI 43-101 (a "QP"). WSP and SRK QPs are independent of IAMGOLD and have reviewed and approved the information contained in their respective sections of disclosure contained in the Rosebel Technical Report.

The Rosebel Technical Report can be found on the Company's website at www.iamgold.com, on SEDAR at www.sedar.com and on EDGAR at www.sec.gov/edgar.shtml.

About IAMGOLD

IAMGOLD is a mid-tier gold mining company operating in three regions globally: North America, South America and West Africa. Within these regions the Company is developing high potential mining districts that encompass operating mines and construction, development and exploration projects. The Company's operating mines include Essakane in Burkina Faso, Rosebel (including Saramacca) in Suriname and Westwood in Canada. A solid base of strategic assets is complemented by the Côté Gold construction project in Canada, the Boto Gold development project in Senegal, as well as greenfield and brownfield exploration projects in various countries located in the Americas and West Africa.

IAMGOLD employs approximately 5,000 people. IAMGOLD is committed to maintaining its culture of accountable mining through high standards of Environmental, Social and Governance practices, including its commitment to Zero Harm®, in every aspect of its business. IAMGOLD (www.iamgold.com) is listed on the New York Stock Exchange (NYSE: IAG) and the Toronto Stock Exchange (TSX: IMG) and is one of the companies on the JSI index1.

1 Jantzi Social Index ("JSI"). The JSI is a socially screened market capitalization-weighted common stock index modeled on the S&P/TSX 60. It consists of companies which pass a set of broadly based environmental, social and governance rating criteria.

IAMGOLD Contact Information

Graeme Jennings, Vice President, Investor Relations