Adamera Minerals Establishes Washington Tungsten Hub to Advance Domestic U.S. Supply

Vancouver, British Columbia — June 25, 2026 — Leads & Copy — Adamera Minerals Corp. has established the Washington Tungsten Hub, a consolidation of four scheelite-bearing tungsten properties in northeastern Washington, aimed at bolstering domestic U.S. tungsten supply. This initiative is being undertaken in anticipation of a federal procurement deadline on January 1, 2027, which will prohibit tungsten from China, Russia, Iran, and North Korea from specific U.S. defense applications. The United States currently has no operating domestic tungsten mines.

The strategic positioning of the Washington Tungsten Hub addresses a structural global tungsten supply shortage and an approaching U.S. defense procurement deadline, fundamentally resetting the value of domestic brownfield tungsten assets. For the first time, four properties with known tungsten mineralization have been brought under single ownership, creating district-scale exploration and development potential.

The hub's development is designed to offer a pathway to near-term production. Underground rehabilitation at the Talisman and Tungsten Ridge properties will provide direct access to known mineralization, while surface exploration aims to expand these deposits. These properties share a common geological setting, featuring scheelite-bearing tungsten mineralization within carbonate skarn systems that have a history of past production.

Consolidating these closely located assets under a unified program has the potential to scale both production and project size through centralized logistics, shared infrastructure, and coordinated exploration. Mark Kolebaba, President and CEO of Adamera Minerals, stated, "The Washington Tungsten Hub provides Adamera investors direct exposure to what I believe is a district-scale brownfield tungsten portfolio at a time when tungsten prices have already risen 900% in response to restricted supply and increased demand. This supply/demand imbalance is not a short-term problem, the work being done across the industry is urgent, and we are just beginning to understand what our district holds."

The initial focus for the Washington Tungsten Hub will be to determine the scalability of tungsten development in the region. The four primary assets include Talisman, the flagship property, which is a past-producing underground tungsten and base metals mine. Historical records indicate tungsten grades ranging from 0.35% to 1.0% WO₃, with some zones reporting 5% copper and 103 g/t silver. These copper and silver credits, consistent with the polymetallic nature of the skarn systems, represent potential byproduct revenue. Other zones are reported to have contained lead and zinc. Adamera has identified additional exploration targets requiring systematic follow-up across the property.

Tungsten Ridge is a past producer of tungsten, copper, molybdenite, and silver. Historical records report tungsten grades from 0.1% to 7.6% WO₃ across multiple mineralized zones and working levels, with higher values reflecting selective samples from higher-grade shoots rather than bulk estimates. Additional untested targets have been identified and require exploration follow-up.

Pierre Creek Tungsten is a recently staked property with a known tungsten-copper-gold occurrence and evidence of past mining activity, expanding the hub's footprint. Roosevelt Tungsten Skarn Front, located on Adamera’s Buckhorn 2.0 property, includes several tungsten-bearing skarns, such as the Magnetic and Roosevelt mines, and Adamera has identified tungsten anomalies within its Buckhorn sample database.

Adamera plans to conduct systematic surface exploration and drilling, with an initial focus on the Talisman property, commencing shortly. Subsurface rehabilitation efforts at Talisman and Tungsten Ridge are also planned to re-establish safe access to historic workings and characterize mineralization continuity at depth. The company is pursuing strategic partnerships and capital markets financing to advance the Washington Tungsten Hub, aligning its timing with the January 2027 procurement deadline.

Tungsten is classified as a critical mineral by both the United States and the European Union. Ammonium Paratungstate (APT), the primary international pricing benchmark, saw a surge from approximately $340/mtu in early January 2025 to approximately $3,150/mtu by mid-2026, an increase of roughly 900% in 18 months. This price increase is attributed to the convergence of Chinese export controls reducing tungsten flow to western markets and increasing demand from the defense, aerospace, cemented carbide, and semiconductor sectors.

Tungsten's applications in armor-piercing munitions, advanced missile systems, air-defense systems, and electronics make it indispensable in defense and civilian manufacturing. China currently accounts for approximately 80% of global tungsten mine production. The U.S. imports an estimated 10,000 metric tons of tungsten annually, with no domestic mine production since 2015. Effective January 1, 2027, Section 4872 of the National Defense Authorization Act will bar tungsten mined, refined, or processed in China, Russia, Iran, or North Korea from certain U.S. defense procurement, creating a significant opportunity for domestic producers.

Adamera Minerals Corp. is a Vancouver-based mineral exploration company advancing a portfolio of critical mineral and precious metal projects in southern British Columbia and Washington State. The company is developing a tungsten-focused critical mineral portfolio in eastern Washington to support domestic U.S. supply, while also exploring for high-grade gold, silver, and copper. Adamera trades on the TSX Venture Exchange under the symbol ADZ and on OTC Markets under the symbol DDNFF.

Source: Adamera Minerals Corp.