Legacy Minerals (ASX:LGM) has appointed WSP Global (TSX:WSP) to update the mineral resource estimate (MRE) at its Mt Carrington Gold-Silver-Copper Project in New South Wales.
The company expects the updated MRE within four weeks, targeting increased silver ounces, copper tonnes, and resource confidence.
Work will incorporate previously unincorporated ‘high-grade’ silver and copper drilling results, updated density measurements, and revised metal payability assumptions informed by the 2026 Ausenco Scoping Study.
The current 2025 MRE contains 1.2 million ounces of gold equivalent (AuEq) at 1.10 grams per tonne AuEq across 34.4 million tonnes — an 80% increase in tonnage from the 2022 estimate.
“Since the 2025 estimate, we have validated large density datasets across the project, the metal price environment has strengthened, and we have identified a clear and simple mining and processing pathway through the Ausenco Scoping Study,” CEO Christopher Byrne says.
The updated MRE will include ‘high-grade’ silver (Ag) results not previously incorporated, including 26.5m @ 220g/t Ag and 0.10g/t Au from 133.3m. ‘High-grade’ copper (Cu) results will also be included, such as 18.9m @ 5.8% Cu from 58m and 10.1m at 7.26% Cu from 88m.
Legacy Minerals aims to upgrade confidence categories, moving inferred resources to indicated, supported by previously unincorporated specific gravity and drilling datasets.
The work incorporates updated density measurements, higher metal prices compared to the 2025 estimate, revised economic extraction assumptions, and a review of geological models.
Drilling at the Emu prospect is underway, with results expected four to six weeks after the final hole is completed. The rig will then mobilise to Mascotte to follow up on results from the first campaign.
Legacy Minerals is an Australian explorer currently focused on advancing the Mt Carrington Project in NSW, with a portfolio of additional exploration projects across the state.
Write to JC Villarba at Mining.com.au
Images: Legacy Minerals
