Mayfair Gold’s Fenn-Gib Drilling Validates 1.0 M Tonnes, Boosts High-Grade Yield 28%
MINE•Grade control drilling at Fenn-Gib validated 1.0 M tonnes of probable reserves (25% of Phase 1 PFS), yielding 2% more contained gold at a 0.8 g/t Au cut-off and 28% more tonnes at 7% higher grade above 3.0 g/t Au. These findings de-risk early high-grade feed and support accelerated financing and earlier higher-grade production.
1. Grade Control Program Overview
Mayfair completed a tight-spaced grade control drilling program at the Fenn-Gib deposit, targeting approximately 1.0 million tonnes of probable reserves defined in its 2026 pre-feasibility study. The program comprised 56 diamond drill holes on 10×10 metre spacing to a nominal depth of 75 metres, designed to validate mineralization continuity and refine ore shape and dilution assumptions.
2. Key Drill Results
At a 0.8 g/t Au cut-off, the grade control model delivered 2% more contained gold than the reserve model for the test area. For material above 3.0 g/t Au, it identified 28% more tonnes at 7% higher grade, equating to 37% more gold in the high-grade portion compared to the probable reserve estimate.
3. Implications for Financing and Production
The positive correlation between the grade control model and reserve model strengthens confidence in early high-grade feed and cash flow projections. This validation de-risks the initial mine sequence, supports accelerated project financing discussions and highlights the potential to bring forward higher-grade production in the early years.
