IAMGOLD Consolidates Côté and Gosselin Resources, M&I Ounces Up 12% to 20.3 Moz
IAG•IAMGOLD's consolidated Côté and Gosselin resource estimate shows Measured and Indicated resources of 20.3 million ounces of gold, a 12% increase from Dec. 31, 2025, including 12.7 Moz at Côté (+13%) and 7.4 Moz at Gosselin (+8%). Inferred resources rose 61% to 3.5 Moz under a $2,500/oz gold price and 0.25 g/t cut-off.
1. Resource Estimate Highlights
IAMGOLD’s consolidated block model for Côté and Gosselin shows Measured and Indicated resources of 20.34 million ounces, up 12% from Dec. 31, 2025. Côté contributed 12.7 Moz (+13%) and Gosselin 7.4 Moz (+8%), while inferred ounces rose 61% to 3.48 Moz.
2. Updated Economic Assumptions
The estimate applies a $2,500/oz gold price and a 0.25 g/t Au cut-off grade, replacing the prior $2,100/oz assumption at Côté and 0.30 g/t cut-off. These parameters broaden the resource envelope and enhance orebody economics.
3. Drilling and Model Integration
Additional assays from 64 drill holes (20,624 m at Côté and 14,110 m at Gosselin) refined geological interpretations and delineated the saddle area, adding 0.2 Moz indicated and 0.6 Moz inferred to the consolidated model.
4. Next Steps and Outlook
The updated estimate will inform IAMGOLD’s technical report and mine plan due in Q4 2026, which will evaluate plant expansion and larger-scale mining under the integrated Côté-Gosselin framework.
