Fenn-Gib gold project fast-tracked: capex, throughput and risk notes for engineers
Reviewed by Tom Sullivan
First reported on MINING.com
30 Second Briefing
Ontario has placed Mayfair Gold’s Fenn-Gib project near Timmins into its One Project, One Process accelerated permitting stream, targeting roughly two-year reviews under a single provincial coordinator while maintaining Indigenous consultation duties. The open-pit plan centres on 25.1 million tonnes of probable reserves at 1.29 g/t, feeding a 4,800 t/d plant over 14.3 years to produce about 64,100 oz. gold annually, with 71,300 oz. per year in the first six years. Mayfair has arranged up to C$310 million in financing from Macquarie Bank, including a proposed C$300-million project loan against an estimated C$450-million initial capex.
Technical Brief
- Macquarie’s financing package includes a C$300-million project loan plus a C$10-million equity tranche.
- An initial C$25-million early drawdown is earmarked for engineering, equipment orders and pre-construction works.
- Macquarie’s equity buy-in was ~2.35 million Mayfair shares at C$4.26 each, completed on 14 October.
- The proposed debt would fund roughly two-thirds of the C$450-million initial development capital.
- Fenn-Gib’s September 2024 estimate reports 181.3 Mt indicated at 0.74 g/t Au (4.3 Moz contained).
- Inferred resources add 8.9 Mt at 0.49 g/t Au, containing ~141,000 oz gold.
- Prefeasibility work in January narrowed the mine plan to a smaller, higher-grade starter pit within the larger resource.
- Ontario’s One Project, One Process framework aims to halve review durations by centralising multi-ministry approvals under one coordinator.
Our Take
Ontario’s targeted two-year permitting timeline for Fenn-Gib contrasts with the longer, more uncertain pathways seen for other Ontario projects like Frontier Lithium’s PAK lithium project and Canada Nickel’s Crawford nickel project in our coverage, signalling that gold projects with established regional infrastructure near Timmins may be the earliest beneficiaries of the province’s ‘fast-track’ framework.
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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