(via TheNewswire)

Vancouver, British Columbia – TheNewswire - June 16, 2026 – Adamera Minerals Corp. (TSX-V: ADZ; OTC: DDNFF) (“Adamera” or the “Company”) reports that new geophysical modeling at the Talisman tungsten property in Washington State has delineated three drill targets. The Company applied 3D inversion modeling of ground magnetic data, a methodology that adds a third dimension – depth - to determine the vertical extent of a magnetic source. This modeling has successfully defined deep magnetic features interpreted to potentially be associated with tungsten-copper-silver mineralization.

The model shows a magnetic anomaly in proximity to the historic Talisman mine extends approximately 1000 metres along strike and to depths up to 200 metres below the workings.  Based on our knowledge of the geology our interpretation is for “stacked” skarn horizons below the deposit historically mined.  That possibility is supported by the presence of surface mineralization at different elevations on the property, suggesting a substantially larger opportunity than previously recognized.

New 3D Modeling Significantly Expands Historic Mine Target

The Talisman Mine was a high-grade producer of tungsten, copper, and silver +- bismuth during World War II and the Korean war for U.S. military applications. Historic records report production grades averaging approximately 5% copper, 103 g/t silver and 0.35% - 1.0% WO₃.

Historic mine development of 600 metres is reported at Talisman.  The only drilling recorded is from a series of short holes in the vicinity of underground stope development.  No modern exploration drilling has been completed.

The new 3D inversion indicates that the magnetic body associated with the historic mine extends nearly one kilometre along strike and continues to depths greater than 200 metres. Also, two additional undrilled magnetic targets have been identified elsewhere on the property.

“Historically, the mine exploited only a very small portion of what now appears to be a much larger mineralized system,” stated Mark Kolebaba, President and CEO of Adamera Minerals. “We have long known that the magnetic anomaly extended beyond the mine workings laterally. What this inversion confirms is that it also extends to depth below the historic workings.  We have also identified two other undrilled anomalies, one centered on a surface sample of 0.33% WO₃.  A third target lies below multiple high-grade copper-silver samples collected at the surface. Field crews are mobilizing this month to advance the targets towards drill testing.”

Three Priority Drill Targets

Adamera completed 3D magnetic inversions to attain a better understanding the geometry of the Talisman skarn system.

Target 1 – Mine Zone (Primary Drill Target)

All four inversion parameters converge on a high-susceptibility body coincident with the historic mine area.

Key characteristics include:

• Approximately 1 kilometre of strike extent.  

• Modelled depth extent exceeds 200 metres and remains open at depth.  

• Historic mining occurred along the eastern flank of the anomaly, a favourable structural position commonly associated with high-grade replacement mineralization in skarn systems.  

• Represents the highest-priority drill target on the property.  

Target 2 – Southern Discovery

Located approximately 720 metres south of the historic mine, a surface rock sample returned 0.33% WO₃ directly above a discrete magnetic anomaly.

Key characteristics include:

• More than 200 metres of modelled depth extent.  

• No historic drilling, trenching or underground development.  

• In tungsten-skarn systems, scheelite precipitates where calcium-saturated carbonate fluids intersect tungsten-bearing magmatic inputs at structural gradient transitions. The coincidence of a high-grade surface sample with a depth-persistent magnetic body is consistent with a buried, potentially mineralized skarn.  

Target 3 – Central-Western Anomaly

A third large magnetic body is modelled in the central-western portion of the property.

Key characteristics include:

• Strong dipolar magnetic response typical of magnetite-bearing skarn systems.  

• Surface cover has limited historic prospecting and sampling.  

• Elevated copper values have been identified in the area.  

• A structural lineament links the anomaly to the mine zone target, suggesting a common hydrothermal source.  

June 2026 Field Program

Field crews are mobilizing this month to advance the targets toward drill testing. Planned work includes:

• Systematic soil and rock sampling along modelled structural corridors.  

• Prospecting and geological mapping of magnetic gradient zones.  

• VLF-EM surveying to identify conductive sulphide-bearing structures and alteration halos commonly associated with copper-bearing skarns.  

About the Talisman Tungsten Property

The Talisman Tungsten Property hosts a historic copper-silver-tungsten (± bismuth) skarn deposit in Washington State. Historic production records indicate grades averaging approximately 5% copper, 103 g/t silver and 0.35%–1.0% WO₃. The deposit formed where magmatic-hydrothermal fluids reacted with carbonate host rocks adjacent to intrusive bodies. No exploration drill holes have ever been completed on the property.

The technical content of this release has been reviewed and approved by Martin St. Pierre, P.Geo., a Qualified Person as defined by National Instrument 43-101.

About Adamera Minerals Adamera Minerals Corp. is advancing a tungsten portfolio in Washington State as part of an industry imperative to establish a secure, uninterrupted domestic supply for U.S. markets. The Company is committed to utilizing modern, tech-driven exploration methodologies and proprietary analytical methods to efficiently discover and define economic mineral resources. Adamera is focused on translating exploration success into tangible equity while continuing to evaluate high-value targets across its project pipeline.

On behalf of the Board of Directors,

Mark Kolebaba

President & CEO

For additional information please contact:

Email: info@Adamera.com
Website: www.Adamera.com
Phone: (604) 307-6450

(1) Historic production data and sampling grades are sourced from the Talisman Mine record (MRDS#10042380) and Washington Division of Mines and Geology Bulletin No. 37. These are historical figures; a Qualified Person has not completed sufficient work to verify them under NI 43-101.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release. Statements in this press release, other than purely historical information, including statements relating to the Company’s future plans and objectives or expected results, may include forward-looking statements. Forward-looking statements are based on numerous assumptions and are subject to all of the risks and uncertainties inherent in resource exploration and development. As a result, actual results may vary materially from those described in the forward-looking statements.

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