Red Mountain Mining Limited has returned a series of high-grade tungsten and polymetallic assay results from systematic rock chip sampling at the Pioneer Tungsten Project in Montana, United States.

The exploration work yielded 50 rock chip samples exceeding 500 parts per million WO3 and 31 samples above 1,000 parts per million WO3. Peak tungsten values reached 5,473 parts per million, or 0.55%, at the Greenstone prospect, alongside 4,036 parts per million at Glow Worm and 3,241 parts per million at Lost Creek.

Assays from Greenstone and Glow Worm also demonstrated strong polymetallic prospectivity, returning grades of up to 6.72% copper, 462 grams per tonne silver, and 3.88 grams per tonne gold. The systematic sampling program targeted areas of outcropping garnet skarn along the eastern margin of the Cretaceous Mount Torrey Batholith.

Red Mountain moved to secure 100 percent ownership of the Pioneer Tungsten Project in Montana in May 2026 following the completion of due diligence. Following that acquisition, the company staked additional prospective geology along the batholith margin, more than doubling the project footprint to 517 hectares. This expansion covers expanded ground over Greenstone and Mammoth alongside the addition of the Glow Worm prospect, situated approximately one kilometre north of Greenstone and four kilometres south of Lost Creek.

The company plans to conduct its next field sampling program covering the Mammoth and Lost Creek prospects within the Pioneer Tungsten Project in October 2026. The upcoming campaign will focus on areas that remain largely unexplored.

Read the full announcement: FURTHER STRONG TUNGSTEN AND COPPER ASSAYS AT PIONEER PROJECT