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IMG.TO ·

Iamgold Provides Update ON Operations

Corporate Updates

NEWS RELEASE TSX: IMG NYSE: IAG

IAMGOLD PROVIDES UPDATE ON OPERATIONS

Toronto, Ontario, May 13, 2021 – IAMGOLD Corporation (“IAMGOLD” or the “Company”) is pleased to

provide the following updates on its operations:

Rosebel Gold Mine

At the Rosebel Gold Mine (“Rosebel”) in Suriname, Rosebel and the Rosebell Goldmines Werknemers

Organisatie (the "Union") have finalized a new Collective Labour Agreement. The agreement applies to the

two-year period from August 16, 2020 to August 15, 2022, inclusive.

Westwood Mine

At the Westwood Mine in Canada, the Company plans to proceed with a targeted, safe restart of

underground operations following the recall of employees announced on April 22, 2021.

The restart would commence in the second half of 2021 with the East Zone. Activities in the second

quarter 2021 continue to be focused on training and rehabilitation work.

As reported in IAMGOLD’s first quarter 2021 results news release on May 3, 2021, mill feed this year is

being sourced from the Grand Duc satellite open pit, located three kilometres from the Westwood mill

complex, and is expected to be supplemented by underground material from the Westwood mine.

Guidance for Westwood production remains at 45,000 to 65,000 ounces in 2021.

CAUTIONARY STATEMENT ON FORWARD-LOOKING INFORMATION

This news release contains forward-looking statements. All statements, other than of historical fact, that

address activities, events or developments that the Company believes, expects or anticipates will or may

occur in the future are forward-looking statements. Forward-looking statements are generally identifiable

by, but not limited to, the use of the words "may", "will", "should", “would”, "continue", "expect", “expected”,

"budget", "forecast", "anticipate", "estimate", "believe", “intend”, “plan”, “schedule”, “guidance ”, “outlook”,

"potential", "plans", "targeted", "focused", or "project" or the negative of these words or other variations on

these words or comparable terminology. Forward-looking statements are subject to a number of risks and

uncertainties, many of which are beyond the Company's ability to control or predict, that may cause the

actual results to differ materially from those discussed in the forward-looking statements. Factors that

could cause actual results or events to differ materially from current expectations include, among other

things, without limitation, the failure to meet expected, estimated or planned gold production, or to

accurately estimate mineral resources or mineral reserves, differences in the mineral content within the

material identified as mineral resources or mineral reserves from that predicted, unexpected increases in

all-in sustaining costs or other costs, unexpected increases in capital expenditures, operating expenditures

and exploration expenditures, changes in development or mining plans due to changes in logistical,

technical or other factors, the possibility that future exploration results will not be consistent with the

Company's expectations, changes in world gold markets and other risks disclosed in IAMGOLD's most

recent Form 40-F/ Annual Information Form on file with the United States Securities and Exchange

Commission at https://www.sec.gov/edgar.shtml and Canadian securities regulatory authorities at

www.sedar.com, which are incorporated herein. Any forward-looking statement speaks only as of the date

on which it is made and, except as may be required by applicable securities laws, the Company disclaims

any intent or obligation to update any forward-looking statement. The Company disclaims any intention or

obligation to update or revise any forward-looking statements whether as a result of new information,

future events or otherwise except as required by applicable law.

About IAMGOLD

page 2 of 2

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, construction, develo pment, and exploration projects. The Company’s

operating mines include Westwood in Canada, Rosebel (including Saramacca) in Suriname and Essakane

in Burkina Faso. 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) a nd 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.

For further information please contact:

Indi Gopinathan, VP, Investor Relations & Corporate Communications, IAMGOLD Corporation

Tel: (416) 360-4743 Mobile: (416) 388-6883

Philip Rabenok, Senior Analyst, Investor Relations, IAMGOLD Corporation

Tel: (416) 933-5783 Mobile: (647) 967-9942

Toll-free: 1-888-464-9999 [email protected]

Please note:

This entire news release may be accessed via fax, e-mail, IAMGOLD's website at www.iamgold.com and through Newsfile’s website

at www.newsfilecorp.com. All material information on IAMGOLD can be found at www.sedar.com or at www.sec.gov.

Si vous désirez obtenir la version française de ce communiqué, veuillez consulter le

https://www.iamgold.com/French/accueil/default.aspx.