b'G O L D M I N E S BORDEN GOLD MINE (PORCUPINE MINES) CT GOLD MINEDiscovery Silver Corp.Porcupine Gold Mines IAMGOLD Corp. gold producerundergroundgold produceropen pitMailing Address55 University AvenueMailing AddressGogama, ONP0M 2X0Suite 701Tel: (416) 360-4710Toronto, ONM5J 2H7Websitewww.iamgold.comTel: (416) 613-9410 Mine ManagerEric GosselinWebsitewww.discoverysilver.com Production Rate37,200 tonnes per day (mill capacity)Mine ManagerDawid Pretorius, Mine General Manager,Production2024199,000 ounces of goldPorcupine Mines Operations 2025380,000 ounces of gold Production Rate9,600 tonnes per day (Porcupine Mines(management projection)Operations combined), 9,979 tonnes Resources599,844,000 tonnes at 0.84 g/t gold, per day (mill capacity) containing 16,205,000 ounces of gold Production2021103,524 ounces of gold(Measured and Indicated 2022115,859 ounces of goldDecember 2024)2023120,046 ounces of gold 184,262,000 tonnes at 0.70 g/t gold, 2024284,000 ounces of goldcontaining 4,157,000 ounces of gold 2025222,000 ounces of gold (InferredDecember 2024)(estimate for Porcupine Mines Opened2024Operations combined) Life of Mine2041Resources111,500,000 tonnes at 1.73 g/t gold,EmploymentApproximately 450 containing 6,200,000 ounces of goldNotesIAMGOLD Inc.s Ct Gold Project (Measured and Indicatedachieved a key operational milestone, December 2024 for Porcupine with the processing plant sustaining an Mines Operations combined) average throughput of 36,000 tonnes 67,900,000 tonnes at 1.50 g/t gold,per dayequivalent to its nameplate containing 3,400,000 ounces of goldcapacityover a continuous 30-day (InferredDecember 2024 for Porcupineperiod on June 21, 2025. In 2025, Mines Operations combined) IAMGOLD invested nearly $13 million in Opened2019 exploration at Ct, with the majority of Life of Mine2033 the funding directed toward the Gosselin Employment764 full-time employees and 300 resource delineation drilling program. contract staff (for Porcupine MinesBy the end of Q3, Ct Mine produced Operations combined)193,000 attributable ounces (275,000 NotesDiscovery Silver completed theounces on a 100-per-cent basis) with the acquisition of Porcupine Operations fromaverage grade of 0.90 g/t Au. As of June Newmont on April 16, 2025. The Porcupine30, 2025, the Ct had a total Proven operations include the Hoyle Pond,and Probable Reserve of 229 million Pamour and Borden Lake mines as well astonnes of gold at 1.00 g/t gold for a the Dome mill. As of September 30, 2025,combined 7,341 Moz of gold.Porcupine Mines have produced 113,706 oz for this year at a head grade of 2.96 g/t Au. As of January 13, 2025, Porcupine had a total Measured and Indicated Resources of 69.67 Kt at a grade of 1.76 g/t for a total of 3,932 Koz. In 2025, Discovery ran an extensive exploration project and completed 85 holes, totalling 27,641 m, in Pamour, Hoyle Pond, Borden and Owl Creek (3 km west of Hoyle Pond). The results of this program have the potential to significantly increase production from the Porcupine Complex.In 2025, Discovery completed 19 holes totalling 4,360 m at Borden to convert and expand resources in the northeast portion of the Main Zone, which hosts the majority of gold mineralization. The initial results met or exceeded the existing resource model. These encouraging results, combined with wide-spaced surface drilling up to 1.2 km northeast, highlighted strong potential for continued resource growth. ONTARIO MINING AND EXPLORATION DIRECTORY AND RESOURCE GUIDE 2026 11'