Toronto - IAMGOLD Corporation (TSX: IMG) (NYSE: IAG) ('IAMGOLD' or the 'Company') is pleased to announce additional positive assay results from its delineation diamond drilling program at the Gosselin zone discovery, centered approximately 1.5 kilometres northeast of the Cote Gold construction project ('Cote Gold').
The Gosselin delineation drilling program is being undertaken as part of the Cote Gold 70:30 joint venture between IAMGOLD, as the operator, and Sumitomo Metal Mining Co., Ltd. ('SMM'). Cote Gold, located 175 km north of Sudbury, Ontario, Canada and 125 km southwest of Timmins, Ontario, Canada, is currently under construction with commercial production anticipated in the second half of 2023.
In March 2021, IAMGOLD reported the results of the remaining nine (9) diamond drill holes totaling 3,686 metres as part of the resource delineation drilling program completed in the fourth quarter of 2020.
IAMGOLD is now reporting assay results from an additional thirty one (31) diamond drill holes totaling 11,735 metres completed in 2021. Drill holes were completed from land-based drill platforms on the north and south shores of Three Ducks Lake, and also on lake ice and barge-based platforms directly on Three Ducks Lake.
Craig MacDougall, Executive Vice President, Growth for IAMGOLD, stated: 'These additional drilling results continue to demonstrate the continuity and strength of this wide mineralized system. The Gosselin zone remains open to the northeast and southeast as well as at depth. I want to acknowledge the tremendous effort of our exploration team to safely complete this logistically challenging drilling campaign, as well as our core shack technicians who processed and prepared large numbers of core samples to facilitate a timely submission for analysis. Additionally I want to acknowledge the support of our assay laboratory partner to expedite the assaying of the drill core samples allowing for their inclusion in the drilling database to support the completion of a maiden resource estimate, which we expect to release in the fourth quarter of 2021.'
The Gosselin zone discovery is located immediately northeast of the Cote Gold deposit, and is accessible by construction roads on the developing mine property. Diamond drilling to date has delineated wide intervals of low-grade Au mineralization extending from the Young-Shannon historical shaft in the west to the Gosselin zone in the east. This continuous zone of mineralization is herein referred to as the Gosselin zone.
The 2021 diamond drilling program continued to in-fill and delineate the Gosselin zone at a nominal drill hole spacing of approximately 70 metres, including the shallowest parts of the deposit under Three Ducks Lake and on the Young-Shannon peninsula. Two of the completed drill holes were oriented in the opposite direction from the regular drill pattern to cross-cut the central part of the Gosselin zone, providing additional information on the central breccia core of the deposit.
Diamond drilling data collected from this program, including oriented drill core, have been used in the creation of a robust geology model incorporating vein orientation and the observed associated structural controls. Results continue to demonstrate gold concentrations associated with two principal vein compositions, which have been modelled and used to underpin the deposit model to support the mineral resource estimate.
Drilling results to date confirm widespread Au mineralization which has now been defined over a strike length of 1,400 metres, width of 400 metres and a depth extent of 425 metres. The zone lies immediately northeast of the Cote Gold deposit outcropping below Three Ducks Lake, and remains open at depth, and along strike to the northeast and southeast.
Next Steps
The finalization of the deposit model and supporting drill hole database, including QA / QC validations have been completed and is now being used to support an initial resource estimate for the Gosselin zone, which is expected to be completed in the fourth quarter of 2021.
Drilling continues with additional in-fill drill holes in progress utilizing one barge-based drill rig on Three Ducks Lake and two land-based drill rigs on Young-Shannon peninsula, with the program expected to continue into late October of 2021.
CAUTIONARY STATEMENT REGARDING 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', 'appear' '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, differences in the mineral content within the material identified as mineral resources or mineral reserves from that predicted, the failure to accurately estimate mineral resources or mineral reserves, 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
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, development, 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 Cote 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.
Contact:
Tel: (416) 360-4743
IAMGOLD CORPORATION 
