Adamera Minerals to Joint Venture Talisman Tungsten Property in Washington State Amid Critical Minerals Demand

Adamera Minerals Corp. will offer its Talisman Copper-Silver-Tungsten Property for joint venture, located near Laurier, Washington, which includes the historic Talisman tungsten mine. The property is not core to the Company's business but warrants exploration due to increased demand for critical minerals. Adamera conducted a mineral potential review reporting grades of 0.35–1.0% WO₃, with historical data indicating high-grade copper averaging 5% and silver at 103 g/t, alongside lead up to 20% and zinc up to 11%.

Tungsten is designated a critical mineral by the United States, European Union, Canada, and the United Kingdom due to its importance in ballistics, aerospace, and technology, driven by its extreme hardness and high melting point. The United States has not mined tungsten commercially since 2015, with most supplies sourced from China, underscoring the strategic value of domestic projects like Talisman. The mine was a key tungsten producer during World War II, supplying strategic metal for U.S. military applications, and now presents an opportunity for re-development under modern critical-minerals initiatives.

Work by Adamera has focused on high-grade copper and silver mineralization, with limited attention to historically mined tungsten-bearing scheelite skarn zones. Scheelite occurs in garnet-epidote skarn along limestone and intrusive rock contacts, with samples containing 0.35–1.0% WO₃ and local higher assays. Mark Kolebaba, President and CEO of Adamera Minerals Corp., stated that the property represents a critical minerals opportunity with a polymetallic system containing tungsten, copper, silver, lead, zinc, and bismuth observed at shallow depths. Exploration has shown the mineralizing system extends beyond old mine workings, indicating potential for a larger deposit.

Surface sampling, mapping, and geophysical interpretation demonstrate that copper, silver, zinc, and lead mineralization extends well beyond the historic mine, suggesting tungsten may do the same. Recent exploration identified zones with elevated tungsten (100 to 2600 ppm) and bismuth (100 to 2850 ppm) located 700 to 1500 metres from the mine, as detailed in historical references like http://mrdata.usgs.gov/mrds. The Talisman Mine is hosted in carbonate rocks intruded by granite and diorite, forming extensive skarn alteration along contact zones. Adamera's mapping outlined a 1.5-kilometre mineralized corridor with polymetallic occurrences, multiple magnetic anomalies coinciding with surface mineralization, and continuity beyond historic workings.

The skarn system remains open along strike and at depth, with untested potential beneath a likely barren rock unit. A drill program has been prepared to test below and along strike of former mine workings, targeting high-grade scheelite zones and copper-silver-bearing sulphides. Additional work will include systematic soil and rock geochemistry focusing on tungsten and detailed EM surveys. The joint venture approach allows Adamera to focus on its gold assets while advancing Talisman's exploration. Gordon Gibson, a qualified person under NI 43-101, reviewed and approved data associated with the release, with rock samples analyzed at Act Labs.