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 near Laurier, Washington for joint venture, including 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. Tungsten is considered critical by the United States, European Union, Canada and United Kingdom due to its importance in ballistics, aerospace and technology, with unique properties including extreme hardness and high melting point. The metal has not been mined commercially in the USA since 2015, with most supplies sourced from China.

Work by Adamera on the Talisman Property focused on high-grade copper and silver mineralization, with limited attention to historically mined tungsten-bearing scheelite skarn zones. The mine was a key tungsten producer during World War II, supplying strategic metal for U.S. military applications. Scheelite occurs in garnet-epidote skarn along limestone and intrusive rock contacts, with selected samples containing 0.35–1.0% WO₃ and local samples assaying higher. In addition to high-grade tungsten, smelter records report high-grade copper and silver averaging 5% and 103 g/t respectively, with specific zones containing Pb up to 20% and Zn up to 11% according to Talisman Mine (MRDS#10042380) and Washington Division of Mines and Geology Bulletin No. 37.

Mark Kolebaba, President and CEO of Adamera Minerals Corp., stated the property represents a critical minerals opportunity with confirmed polymetallic mineralization containing tungsten, copper, silver, lead, zinc and bismuth observed at shallow depths. While initial work paid little attention to tungsten standalone, exploration demonstrated the mineralizing system extends well beyond old mine workings with clear potential for discovering a much larger polymetallic deposit. Surface sampling, mapping and geophysical interpretation show copper, silver, zinc and lead mineralization extends beyond the historic mine, suggesting tungsten may do the same.

Recent exploration identified zones with elevated tungsten (100–2600 ppm) and bismuth (100–2850 ppm) located 700–1500 metres from the mine that have not been followed up. The Talisman Mine is hosted within carbonate rocks intruded by granite and diorite bodies, forming extensive skarn alteration along contact zones. Adamera's mapping outlined a 1.5-kilometre mineralized corridor with copper-silver-lead-zinc +/- tungsten occurrences, multiple magnetic anomalies coinciding with surface mineralization, and continuity of alteration beyond historic mine workings. The company believes the skarn system remains open along strike and at depth with significant 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 associated copper-silver-bearing sulphides. Additional work will include systematic soil and rock geochemistry focusing on tungsten and detailed EM survey. The Talisman Property represents one of few known past-producing tungsten sites in Washington State with strong re-development potential under modern critical-minerals initiatives. The combination of historical tungsten production and newly identified copper-silver enrichment positions Talisman as a strategic exploration asset. The current plan to entertain joint venture proposals allows the company to focus on its gold assets while advancing this critical minerals opportunity.