Adamera Reports Multiple Drill-Ready Gold-Silver-Copper Targets in Established Mining Districts of B.C. and Washington State

Background

Over the past decade, Adamera has pursued a disciplined exploration strategy focused on proven mining districts in B.C. and Washington State. Both jurisdictions offer excellent access and a well-defined and established path for permitting to enable exploration and mining. Challenging market conditions in recent years have led the Company to prioritize low-cost field work programs, including geology, geochemistry and geophysics, to establish and refine high quality drill targets. In 2026, Adamera's focus is shifting to more advanced drilling stage in anticipation of a possible discovery. Drilling is scheduled to start by mid year.

Project Highlights

Target generation is complete across the core assets:

• Buckhorn 2.0 (Washington State - gold, silver, copper): district-scale project surrounding the former Buckhorn gold mine ("the Crown Jewel discovery"). This high-grade producer (Kinross Gold) closed in 2017. A very large historic database supplemented by Adamera data surveys has identified +30 drill targets with both gold and copper-silver near surface potential. Land position +2,117 hectares.

• South Hedley (British Columbia - gold, copper): district-scale land position in the historic Hedley Gold Camp / Copper Mountain Copper Gold camp. Multiple emerging and drill-ready gold and gold-copper targets including the Max and Glix targets. Land position +19,000 hectares.

• Flag Hill and Flag Hill South (Washington State - Gold, Silver): gold-silver epithermal vein system in the Republic Gold District, a historic multi-million-ounce gold-silver camp. Drilling in 2024 discovered shallow gold and silver mineralization. Follow up drilling justified. Land position +438 hectares.

• Empire Creek (Washington State - Gold, Silver): High-grade epithermal gold-silver project on the Republic Graben structural corridor near Kinross Gold's former K2 Mine. Historic multi-gram gold and silver drill intercepts and extensive surface anomalies to drill.

• Talisman (Washington State - Tungsten, Copper, Silver): Past-producing copper-tungsten-silver mine. Adamera has generated strong multi-metal results. Drilling provides exposure to critical-metal opportunity in a secure jurisdiction.

"Adamera has a tight share structure and modest market capitalization. We offer investors leveraged exposure to multiple potential discoveries on properties within districts that host major historic discoveries yet little modern exploration. Adamera's portfolio, a mix of gold, silver, copper and tungsten targets, is ideal in the current commodity cycle. Over the past decade, we have advanced these projects cost-effectively from conceptual geology to well defined drill-ready targets. Each target has been ranked and refined using multiple layers of geological, geochemical, and geophysical data. Drilling is the obvious next step," comments Mark Kolebaba, President & Chief Executive Officer.

Washington State Portfolio

Adamera's Washington State projects are located exclusively in historic mining districts with established infrastructure. A key advantage for this portfolio is the proximity to an underutilized Kinross Gold's treatment facility located approximately 14 kilometers (km) from several of the Company's gold projects. This represents a potential development advantage.

Buckhorn 2.0 Property (Gold-Silver-Copper)
The Buckhorn 2.0 Project surrounds the past-producing Buckhorn Gold Mine, a high-grade skarn deposit that produced approximately 1.3 million ounces of gold at ~13 g/t (1,5). This mine establishes a strong geological framework for surrounding exploration. Adamera has compiled and reinterpreted extensive historic and recent datasets, including drilling, geochemistry and geophysical surveys. Interpretation of this data has generated +30 prioritized drill targets across the property. Key gold targets include Keystone, where historic drilling returned 45 g/t gold over 1.5 metres (m). Additional multi-gram intercepts are recorded in skarn including VTEM1 where Adamera intersecting near-surface mineralization with 4.0 g/t gold associated with magnetite skarn within a strong, laterally extensive magnetic anomaly comparable to the Buckhorn Mine located approximately 800m away.

Buckhorn 2.0 also hosts significant copper-silver potential. Two large target areas flank the Buckhorn Mine to the north and south. Each exceeds one kilometer in diameter. These targets are defined by widespread copper-silver bearing rock samples and historic drilling. One historic drill hole intersected 4.3% copper over 6m and another 1% copper over 13m. Surface rock samples includes copper values ranging from 0.1 to 5.9% copper and silver values from 1 to 376 g/t and locally very high historic silver assays (55,420 g/t Ag and 82,960g/t Ag). The spatial association of high-grade gold, near-mine gold targets and peripheral copper-silver mineralization supports a large scale, zoned skarn system potentially related to buried intrusive rocks. Collectively, the data indicate Buckhorn 2.0 is a multi-metal project with potential extending well beyond the historic mine footprint.

Flag Hill and Flag Hill South (Gold-Silver)
Flag Hill is located in the Republic Gold-Silver District, which has reportedly produced approximately 3 million ounces of gold and 15 million ounces of silver. Historic mining in this district was characterized by very high grades, including gold grades of 15 to 30 g/t and silver grades of approximately 90-150 g/t and locally much higher bonanza-grade shoots.(2 )

Adamera completed 3 shallow drill holes at Flag Hill South in 2024. Drilling intersected 2.0 metres grading 3.0 g/t gold and 10.8 g/t silver, and 2.2 metres grading 1.8 g/t gold and 71.2 g/t silver, with over-limit analyses indicating silver values approaching 125 g/t silver. The 2024 drilling suggests grades and thickness increase with depth.

Empire Creek (Gold-Silver)
Empire Creek lies along the same structural corridor that hosts the historic K2 and Granny mines which hosts multiple high-grade gold-silver vein systems with drill intercepts locally exceeding 10 g/t Au and 100 g/t Ag. (3,7) Historic drilling at Empire Creek intercepted 15.2 metres grading 10.5 g/t gold and 183.3 g/t silver, confirming the presence of high-grade mineralization on the property. Work by Adamera since that drilling has identified gold anomalies in soil and rock extending for more than a kilometer. The project is drill-ready.

Talisman (Tungsten-Copper-Silver)
The Talisman Project hosts a historic tungsten mine that supplied strategic metals during World War II. Reported historic grades range from approximately 0.35% to 1.0% WO?.(6) Rock sampling by Adamera has returned tungsten values up to 2,600 ppm, with associated copper values from 0.54% to 4.6%, silver values ranging from 1 to 1,000 g/t, zinc up to 6.9%, and lead up to 12.8%. In an environment of increasing strategic focus on critical metals, Talisman represents a unique and timely asset within the Company's portfolio.

British Columbia - South Hedley Gold-Copper Projects

The South Hedley Gold-Copper Project is located within the historic Hedley Gold Camp of southern British Columbia. The Hedley district reportedly produced more than 2.5 million ounces of gold, primarily from the Nickel Plate and Mascot skarn deposits. The district lies along a broader mineralized corridor with the Copper Mountain copper-gold-silver mine located 18 km to the west. That Copper Mountain mine has produced in excess of one billion pounds of copper(2). In summary, South Hedley is placed within one of southern British Columbia's most productive and best documented gold-copper belts.

Due to our ability to conduct exploration at a low cost, South Hedley was a strong focus for 2025. Recent results indicate that South Hedley has the potential to emerge as one of southern B.C.'s newest discovery stage areas. We have identified multiple mineralized areas that appear to have been virtually unexplored, largely because significant areas are concealed by younger barren volcanic cover.

Through mapping, soil geochemistry and geophysics Adamera has defined several gold and gold-copper targets in its South Hedley property package. Both the Max and Glix prospects are considered drill-ready.

Max Prospect (Gold-Copper)
The Max Prospect represents a newly recognized gold-copper system that appears to be topographically concealed beneath younger volcanic cover. The discovery soil sample returned 1,340 ppb gold (1.34 g/t Au), determined by fire assay. Follow-up soil sampling expanded the anomaly, returning gold values up to 1.61 g/t Au and an associated copper anomaly with copper values ranging from 100 ppm to 1,450 ppm copper. The Max anomaly is partially coincident with an approximately 500-metre-long magnetic anomaly, interpreted as a potential subsurface intrusive or skarn-related source. Further results will be disclosed in the coming weeks.

Glix Prospect (Gold)
The Glix Prospect represents a separate and independent gold discovery within the same property package. Soil sampling has returned gold values ranging from background to a maximum of 4,283 ppb gold (4.3 g/t Au). Multiple anomalous samples define a corridor that is spatially associated with a conductive and magnetic geophysical response extending for more than 400 metres. Gold mineralization is accompanied by elevated arsenic, zinc and copper. This association is characteristic of the Hedley-style gold skarn system.

Property Scale and Emerging Targets
The South Hedley Project now encompasses more than 19,000 hectares in the southern Hedley Gold Camp. Additional gold-copper prospects are advancing beyond the early reconnaissance stage on other parts of the South Hedley property. South Hedley has evolved into a multi-prospect project.

2026 Outlook and Key Catalysts

The Company's strategy is to advance a pipeline of drill-ready targets across multiple properties. Exploration will be funded through a combination of equity financing and potential joint venture partnerships. Short-term plans include targets at Flag Hill South in Washington State and targets at South Hedley, particularly the Max and Glix prospects.

Strengthened gold and silver prices, long-term demand for copper (driven by electrification and infrastructure renewal) and a strategic interest in tungsten collectively enhance the appeal of the Company's asset mix. With 36,031,572 shares outstanding and a comparatively low market capitalization, Adamera believes it offers shareholders outstanding leverage.

As Adamera enters 2026, the Company is positioned at a stage of the discovery cycle where drilling, rather than surface work, will be the primary driver of value creation. Adamera looks forward to updating shareholders as the Company advances through this next phase.

Gordon Gibson (P.Geo.), qualified person under NI 43-101, is an independent consultant that has reviewed and approved data associated with this release. Historic data used by the Company has not been verified; however, it appears to be of acceptable quality consistent with the time period during which it was collected.

About Adamera Minerals Corp.
Adamera Minerals Corp. is a mineral exploration company focused on the discovery and development of gold, silver, copper, and tungsten deposits in British Columbia and Washington State.

Mark Kolebaba
President & Chief Executive Officer
Adamera Minerals Corp.

Forward-Looking Statements
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.

Soil samples were analyzed in-house using the detectORETM method for gold, a proprietary process developed by Portable PPB in Australia that allows for rapid gold analysis at ppb levels using a pXRF. The method uses a rigorous QA/QC process whereby a standard rock sample of known gold content is inserted every 30 to 45 samples at the preparation step. This sample is later analyzed by the pXRF along with additional control samples that are tested every 20 analyses. The pXRF is fully automated and can analyze up to 180 samples per run. Each sample run using the pXRF is initiated by testing 5 control samples, if any samples do not pass the standard's specifications, the XRF is immediately calibrated. Samples analyzed using the detectORETM method report gold content in detectORETM units which represents a calculated ppb value. Selected samples may be followed up with fire-assay as a means of calibrating the detectORETM results, therefore the Company considers detectORETM gold results to be a semi-quantitative providing highly effective exploration advantage. In addition to detectORETM, gold content of other soil and rock was determined by fire assay of a 30-gram sample with atomic absorption finish at the Activation Laboratory in Kamloops.

1. 1)Kinross Gold Corp., Buckhorn Mine Technical and Production Reports, Washington State, 2008-2017.
   Washington State Department of Natural Resources, Buckhorn Mine Closure and Reclamation Summary.

2. 2)www2.gov.bc.ca/assets/gov/farming-natural-resources-and-industry/mineral-exploration-mining/documents/mineral-development-office/gold_september_2015.pdf and Copper Mountain Mining Corp. (2023). NI 43-101 Technical Report - Copper Mountain Mine, British Columbia.
   Filed on SEDAR+.

3. 3)https://dnr.wa.gov/sites/default/files/2025-04/ger_ic110_iaml_republic_mining_dist.pdf

4. 4)https://www.spokesman.com/stories/2005/oct/08/ferry-county-mine-to-close/

5. 5)https://miningrecord.com/kinross-golds-buckhorn-mine-is-now-operational

6. 6)Pryor, W. A., and Logan, M. H. (1951). Tungsten Deposits of Washington. Wa Division of Mines and Geology Bulletin No. 37, pp.

7. 7)Church, S.E., Johnson, M.G., Walker, R.L. (1989). Geology and Mineralization of the Republic Mining District, Washington. USGS Professional Paper 1125.

Other References

Bostock, H.S. (1940). Nickel Plate Mine, Hedley Camp, British Columbia. British Columbia Department of Mines, Bulletin 20.

British Columbia Geological Survey (BCGS). MINFILE 092HSE040 - Nickel Plate Mine. Province of British Columbia.
https://minfile.gov.bc.ca

British Columbia Geological Survey (BCGS). MINFILE 092HSE033 - Mascot Mine. Province of British Columbia.
https://minfile.gov.bc.ca

British Columbia Ministry of Energy, Mines and Petroleum Resources (2015). British Columbia Gold Map and Mineral Development Office Report.

https://www2.gov.bc.ca/assets/gov/farming-natural-resources-and-industry/mineral-exploration-mining/documents/mineral-development-office/gold_september_2015.pdf

Kinross Gold Corporation (2014-2017). Buckhorn Mine Technical and Production Reports, Okanogan County, Washington.
Filed on SEDAR and company technical archives.

Muessig, Siegmund (1967). Gold and Silver in the Republic Mining District, Washington. Washington Geological Survey, Bulletin 82.

Preto, V.A. (1972).

Geology of the Copper Mountain Area, British Columbia. British Columbia Geological Survey, Bulletin 61.

United States Bureau of Mines (1944). Tungsten Deposits of Washington State. Strategic Minerals Report.

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