Guardian Metal Resources plc has returned positive tungsten drill results from the newly discovered Tremor Zone and the previously untested Good Hope Zone at its 100%-owned Pilot Mountain tungsten project in Nevada.

The drilling confirms extensive mineralization over a 200-metre strike distance at the northern Tremor Zone, where mineralization remains open in multiple directions. Significant intersections include hole PM26-088, which returned 64.15m at 0.20% WO3 from 139.97m, including 14.27m at 0.34% WO3 from 147.68m. Hole PM26-097 intersected multiple zones, including 44.08m at 0.18% WO3 from 86.03m downhole.

The Tremor Zone is a blind tungsten-skarn discovery identified during condemnation drilling in an area previously considered for a tailings storage facility. These results have prompted Guardian Metal to relocate the planned tailings facility, requiring a revised design not expected to materially affect project costs or the development timeline.

At the Good Hope Zone, inaugural drilling returned near-surface tungsten intersections within 1.3 kilometres of the Desert Scheelite resource area and 1.1 kilometres east of the Garnet resource area. Hole GH26-01 returned 12.95m at 0.79% WO3 from 12.19m. Holes GH26-01 and GH26-02 were twinned holes, with the latter drilled to recover the upper part of the zone, representing a combined apparent thickness of 23 metres at an average grade of 0.58% WO3.

The Pilot Mountain project is advancing following a Pre-Feasibility Study in June 2026, supported by a US$6.2 million investment from the U.S. Department of War under Title III of the Defense Production Act. Elsewhere in the surrounding Nevada district, continuous polymetallic mineralization and tungsten have been reported at the New Boston project.

“The Tremor Zone did not form part of the PFS mineral resource, yet drilling continues to highlight meaningful size and scale, with mineralization remaining open in multiple directions.”

“With numerous exploration targets still to be drill tested, we see potential to add further tungsten resources, subject to further drilling and evaluation, while the DFS, engineering and permitting advance in parallel and at pace as we work to make Pilot Mountain the first new tungsten mine on U.S. soil in over a decade.” — Oliver Friesen, CEO

Guardian Metal awaits pending assay results from the Tremor Zone, including hole PM26-096 and the southern zone.

No Mineral Resource Estimate has been prepared for either the Tremor Zone or the Good Hope Zone, and further drilling and evaluation are required to determine their significance to the broader project.

Read the full announcement: Guardian Metal Resources PLC Announces Drilling Results Support Potential Resource Growth