Western Star Models Buried Intrusive Bodies and Fluid Conduits Across Its Nevada Tungsten District

Western Star Resources Inc. (CSE: WSR) (OTC: WSRIF) (FRA: 4K2) (the “Company” or “Western Star”) is pleased to announce the results of a district-scale three-dimensional geophysical inversion across its Rowland and White Star tungsten properties in Elko County, Nevada, USA. The modelling has defined buried and partially exposed intrusive bodies across the district and has refined the fault network that is interpreted to be involved in channelling mineralising fluid into the tungsten skarn system. Importantly, the Company’s highest-grade rock chips, 4.02% WO₃ at Rowland and 3.00% WO₃ at White Star ( July 28, 2026) both correspond spatially with the contact between these modelled intrusive rocks and the carbonate host. The modelled intrusive framework extends well beyond the limits of the mapped outcrop, opening substantial new search space across both properties.

Blake Morgan, the CEO and President of Western Star, stated “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. Soil geochemistry from Phase 2 is due back shortly and we can use these in our drill hole planning.”

A district-scale three-dimensional magnetic inversion has been completed across the Rowland and White Star properties by Warren Hughes, P.Geo., of East Coast Consulting, a specialist in geophysical modelling and interpretation. The modelling defines buried and partially exposed intrusive bodies across the district. A causative intrusion is the essential ingredient of a tungsten skarn system, and the modelled intrusive framework extends well beyond the mapped outcrop. The Company’s highest-grade rock chips, 4.02% WO₃ at Rowland and 3.00% WO₃ at White Star, both are associated with the contact between modelled intrusive rock and carbonate host rocks, and adjacent to interpreted structures. Approximately 25 kilometres of structure has been interpreted in two dominant orientations, north-east–south-west and north-west–south-east. These are interpreted as the fluid conduits that fed the skarn, and represent the first structural framework mapped at property scale in this district. The modelled magnetic domains correspond closely with the units mapped by Coats (1964). The inversion adds depth and continuity to that mapping and will be used to refine the geological model in the next phase of work. The inversion resolves geology beneath the extensive Quaternary cover on the eastern flank of the district, providing an exploration vector into ground that cannot be mapped or sampled at surface. Soil geochemistry from the Phase 2 programme is expected shortly and will be integrated with the inversion model, the structural framework and the geological mapping to define and rank drill targets.