Mulga Tank Drilling to Extend Deep Hole MTRC009 and Add Nine RC Holes in 2026

Exploration Resumes at Mulga Tank

Western Mines Group Ltd (ASX – WMG) has officially commenced its 2026 drilling program at the Mulga Tank nickel-copper-cobalt-platinum group elements (Ni-Cu-Co-PGE) project, located in the Minigwal Greenstone Belt of Western Australia’s Eastern Goldfields. The company’s exploration team has mobilised on site to continue a campaign that aims to build on significant nickel sulphide mineralisation discovered over the past three years.

Following a productive 2025 season, the program will initially focus on completing outstanding holes from the previous Phase 4 drilling, including extending deep diamond hole MTRC009. This hole, drilled to over 1,400 metres, intersected broad zones of disseminated mineralisation and remobilised massive sulphide veins, with the extension designed to confirm the footwall assemblage and test for additional mineralisation.

Targeting Resource Growth and Confidence

In addition to the diamond drilling, Western Mines Group plans to drill nine reverse circulation (RC) holes within the main body of the Mulga Tank Ultramafic Complex. These holes aim to infill gaps between existing Indicated Mineral Resource areas, reducing drill spacing and increasing confidence in the resource model. The program also targets extensions beyond the current resource shell, potentially expanding the known mineralised footprint.

One standout from last year’s drilling was hole MTRC066, which returned one of the best shallow RC intersections to date, including a continuous 269-metre interval grading 0.33% nickel with notable cobalt and copper credits. Follow-up drilling around this zone is planned to target similar high-grade mineralisation.

Exploration Incentive Scheme Grants Bolster Efforts

Western Mines Group’s 2026 campaign is well supported by multiple government Exploration Incentive Scheme (EIS) grants, which co-fund several planned holes within tenement E39/2134. This includes seven RC and diamond holes targeting a mineralised komatiite sequence in the Panhandle area, a key geological feature believed to host significant nickel sulphide mineralisation. Recent geophysical surveys have refined targeting, enhancing the potential for discovery.

Managing Director Dr Caedmon Marriott highlighted the company’s strong financial position following an October capital raise and the EIS grants, enabling consistent drilling through the first half of 2026. He emphasised the team’s readiness to build on last year’s successes and the strategic approach to testing both shallow and deep targets within the Mulga Tank Complex.

Looking Ahead

With a Mineral Resource Estimate announced in April 2025 exceeding 5 million tonnes of contained nickel, Mulga Tank stands as Australia’s largest nickel sulphide deposit. The ongoing drilling program aims to enhance this resource base and unlock further high-grade zones, critical for the company’s growth ambitions in the nickel sector. Investors and analysts will be watching closely as assay results emerge and the resource model evolves.