Mulga Tank Phase 4 Drilling Includes Deep Hole EIS9 and Nine RC Holes
Western Mines Group advances its Mulga Tank nickel project with a new deep diamond drill hole and an electromagnetic survey, backed by recent capital and government grants.
- Phase 4 drilling underway including deep diamond hole EIS9
- Nine reverse circulation holes planned to infill and expand resource
- MLEM survey to extend coverage over Panhandle komatiite area
- Exploration Incentive Scheme grants totaling $620,000 support drilling
- Mulga Tank hosts significant nickel sulphide mineralisation with resource over 5Mt contained nickel
Mulga Tank Drilling Accelerates After Capital Raise
Western Mines Group Ltd (ASX – WMG) has provided a detailed update on its ongoing exploration at the Mulga Tank Ni-Cu-Co-PGE Project in Western Australia's Eastern Goldfields. Following a successful capital raise in October 2025, the company is well positioned to complete the current Phase 4 drilling program and continue exploration well into 2026.
The Phase 4 program includes a combination of reverse circulation (RC) and diamond drilling designed to both infill existing resource gaps and test deeper targets. Notably, the upcoming deep diamond hole EIS9 will probe the basal zone of the Mulga Tank Ultramafic Complex, a prospective area for high-grade nickel sulphide deposits.
Strategic Drilling and Surveying to Expand Resource Confidence
The company plans to drill nine RC holes aimed at increasing resource confidence by linking two zones of Indicated Mineral Resource and extending the mineralisation footprint southwards. These holes follow encouraging results from earlier Phase 4 drilling, which encountered broad intervals of disseminated sulphides beyond the current resource boundary.
Complementing the drilling, a Moving Loop ElectroMagnetic (MLEM) survey is scheduled for mid-November to extend coverage over the Panhandle komatiite system. This survey will help identify conductive bedrock targets for seven co-funded drill holes planned in early 2026, leveraging $620,000 in Exploration Incentive Scheme (EIS) grants awarded to Western Mines.
A Hybrid Nickel Sulphide System with Significant Potential
Western Mines’ exploration to date has revealed a hybrid nickel sulphide system at Mulga Tank, featuring both disseminated and massive sulphide mineralisation. The presence of intercumulus sulphide blebs and high-grade sulphide veins within the basal zone suggests potential for significant accumulations akin to other major deposits in the region.
Deep diamond drilling, including the EIS9 hole, targets a coincident magnetic high and conductive anomaly interpreted as a fold hinge at the base of the western margin of the complex. This strategic positioning aims to test for a sulphide-enriched keel, which could represent a high-grade orebody.
Outlook and Next Steps
With nearly $4 million in cash and multiple government grants supporting exploration, Western Mines is advancing its Mulga Tank project with a clear focus on resource expansion and discovery. The company expects to complete the current drilling program by year-end and continue with further drilling and surveying into 2026, aiming to unlock the full potential of this large nickel sulphide system.
Investors and market watchers will be keenly awaiting assay results from the Phase 4 drilling and the upcoming MLEM survey data, which will guide the next phase of exploration and resource updates.
Bottom Line?
Western Mines is drilling deep and expanding its resource footprint at Mulga Tank, setting the stage for potential high-grade nickel discoveries.
Questions in the middle?
- Will the EIS9 deep diamond hole confirm the presence of a high-grade sulphide keel?
- How will the MLEM survey results influence the targeting of 2026 drill holes?
- What impact will these exploration results have on the next Mineral Resource Estimate update?
