Iamgold Shareholders Re-Elect Board of Directors

NEWS RELEASE

TSX: IMG NYSE: IAG

IAMGOLD SHAREHOLDERS RE-ELECT BOARD OF DIRECTORS

TORONTO, May 10, 2017 – IAMGOLD Corporation (“IAMGOLD” or the “Company”) today announced

that shareholder voting at the Company’s annual meeting of shareholders on May 10, 2017, has resulted

in the election of all the directors listed as nominees in management’s information circular dated March 30,

2017.

Results of the shareholder voting were as follows:

Nominee Votes For % For Votes Withheld % Withheld

John E. Caldwell 262,240,888 99.21 2,084,731 0.79

Donald K. Charter 250,263,484 94.68 14,062,135 5.32

Sybil E. Veenman 260,687,191 98.62 3,638,428 1.38

Richard J. Hall 262,324,881 99.24 2,000,738 0.76

Stephen J. J. Letwin 259,226,975 98.07 5,098,664 1.93

Mahendra Naik 244,425,371 92.47 19,900,248 7.53

Timothy R. Snider 260,216,164 98.45 4,109,455 1.55

About IAMGOLD

IAMGOLD (www.iamgold.com) is a mid-tier mining company with four operating gold mines on three

continents. A solid base of strategic assets in North and South America and West Africa is complemented

by development and exploration projects and continued assessment of accretive acq uisition opportunities.

IAMGOLD is in a strong financial position with extensive management and operational expertise.

For further information please contact:

Ken Chernin, VP Investor Relations, IAMGOLD Corporation

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

Laura Young, Director, Investor Relations, IAMGOLD Corporation

Tel: (416) 933-4952 Mobile: (416) 670-3815

Shae Frosst, Investor Relations Associate, IAMGOLD Corporation

Tel: (416) 933-4738 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 CNW Group’s

website at www.newswire.ca. 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

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