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    Iamgold’s Lemelin and Côté Gold: production, AISC and expansion notes for engineers

    December 27, 2025|

    Reviewed by Joe Ashwell

    Iamgold’s Lemelin and Côté Gold: production, AISC and expansion notes for engineers

    First reported on MINING.com

    30 Second Briefing

    Iamgold COO Bruno Lemelin, named Northern Miner Group’s EY Operator of the Year, has led the Côté open-pit mine in Ontario to commercial production at its 36,000 t/d plant, drawing on 233 Mt at 0.96 g/t for 7.17 Moz over an 18-year life and targeting average output of 365,000 oz/y. Third-quarter production reached 106,000 oz from Côté, Essakane (92,000 oz) and Westwood (23,000 oz), generating US$707 million revenue at an average realised gold price of US$3,492/oz and AISC of US$1,956/oz. Expansion work includes 55 km of drilling at the adjacent Gosselin deposit (4.4 Moz indicated, 3 Moz inferred) to test a “super-pit” concept lifting throughput from 13 Mt/y to up to 20 Mt/y, while Essakane life extension drilling proceeds under Burkina Faso’s tougher 2024 mining code and Côté ramps autonomous haulage and AI-enabled control-room operations.

    Technical Brief

    • First gold pour at Côté occurred in April 2024, following Iamgold’s 2012 takeover of Trelawney Mining.
    • Essakane’s mining department under Lemelin previously managed about 800 personnel producing 400,000 oz gold per year.
    • Third-quarter sales of 203,000 oz generated about US$707 million revenue at realised prices near US$3,492/oz.
    • Year-to-date revenue reached US$1.76 billion, with all-in sustaining costs averaging US$1,956/oz, near guidance ceiling.
    • Lemelin flags cost management and efficiency at Côté as the primary operational focus for the coming year.

    Our Take

    With Côté’s low reserve grade (0.96 g/t) and Gosselin’s even lower indicated and inferred grades (0.85 g/t and 0.75 g/t), Iamgold is clearly committing to a bulk-tonnage, high-throughput operating model, which makes the 13–20 Mt/y plant expansion options pivotal for unit cost control over the 18-year mine life.

    The Essakane lease renewal in 2028, combined with Burkina Faso’s move from a 10% to 15% (and potentially 30%) state stake, means West African cash flow will likely face higher government take just as Côté ramps up, reinforcing the strategic logic of diversifying gold exposure back into Canada.

    The acquisitions of Northern Superior Resources and Mines D’Or Orbec, which nearly triple Iamgold’s footprint in the Chibougamau region, suggest a deliberate build-out of a second Canadian gold hub beyond Côté, aligning with a pattern in our database of mid-tier gold producers consolidating district-scale positions rather than pursuing single-asset bets.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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