Western Star Resources Inc. (CSE: WSR) (OTC: WSRIF) (FRA: 4K2) has released the results of a district-scale three-dimensional geophysical inversion across its Rowland and White Star tungsten properties in Elko County, Nevada. The modelling has defined buried and partially exposed intrusive bodies and refined the fault network that is interpreted to have channeled mineralising fluids into the tungsten skarn system. This is a critical step for the company as it seeks to expand its understanding of the district's geology and identify new drill targets.
The inversion results, processed by Warren Hughes, P.Geo., of East Coast Consulting, show that the company's highest-grade rock chip samples—4.02% WO3 at Rowland and 3.00% WO3 at White Star (as reported on July 28, 2026)—correspond spatially with the contact between the modelled intrusive rocks and the carbonate host. The modelled intrusive framework extends well beyond the limits of mapped outcrop, opening substantial new search space across both properties. This is particularly significant because the intrusive body is an essential ingredient in the tungsten skarn model, and the extended framework suggests that the mineralising system could be more extensive than previously known.
According to the company, the modelling has also interpreted approximately 25 kilometres of structure in two dominant orientations: north-east–south-west and north-west–south-east. These structures are believed to be the fluid conduits that fed the skarn, and they represent the first structural framework mapped at property scale in this district. The ability to map these structures beneath extensive Quaternary cover on the eastern flank of the district provides an exploration vector into ground that cannot be mapped or sampled at surface.
The tungsten skarn model, as described in the U.S. Geological Survey assessment (Lederer and others, 2021), requires three elements: an intrusion to drive the system, reactive carbonate rock to host the replacement, and structures to focus the fluid. The company's properties fit this model, with a quartz monzonite intrusion mapped by Coats (1964) and Palaeozoic carbonate sequences. The inversion adds depth and continuity to that mapping, refining the geological model and providing a clearer picture of where skarn development may have occurred.
Blake Morgan, CEO and President of Western Star, commented: "This is the result we were hoping for. The inversion has modelled intrusive bodies spatially associated with areas where we sampled high grade tungsten values, and it has mapped the faults that we believe carried the fluid there. That is the tungsten skarn recipe, and we can now see it in three dimensions across the whole district. Better still, the modelled intrusives are more extensive than has been previously mapped, which means the ground that has produced our best rock chips continues into untested areas."
The company also announced that it has satisfied the first performance milestone under the option agreement for the Rowland tungsten project. Under the agreement with NorthEx Capital Partners Inc. and 1249445 BC Ltd., Milestone One required increasing the total project claim area by at least 30% and identifying at least three rock-chip samples grading above 2.0% WO3. Both conditions have been met, with the claim area expanded by approximately 165% to 221 hectares, and four samples grading above 2.0% WO3, including 4.02% and 2.69% WO3. As a result, the company will issue 500,000 common shares to the vendors, valued at the 10-day volume-weighted average price immediately preceding the verification date, subject to Canadian Securities Exchange policies.
Soil geochemistry from the Phase 2 programme is expected shortly and will be integrated with the inversion model, structural framework, and geological mapping to define and rank drill targets. This integrated approach is crucial for the company's next phase of exploration, which aims to test the newly identified targets and potentially outline a tungsten resource. The company's strategic emphasis on tungsten and critical minerals in the United States, as part of its portfolio of past-producing assets in Nevada and New Mexico, positions it to capitalise on the growing demand for these minerals in various industries.
The scientific and technical information in this news release has been reviewed and approved by Jasper Mowatt, MIMMM, MAusIMM, a consultant to the company and a Qualified Person as defined by National Instrument 43-101. The interpretations described require confirmation by drilling, but the results provide a solid foundation for future exploration efforts.
