Mr. Jim MacKenzie reports

VISCOUNT MINING ENGAGES SLR TO RE-ANALYZE KATE DEPOSIT RESOURCE AMID STRENGTHENING SILVER MARKET

Viscount Mining Corp. has engaged SLR Consulting (Canada) Ltd., a globally recognized mining advisory firm, to undertake a reanalysis of the existing mineral resource at the Kate deposit at its 100-per-cent-owned Silver Cliff project in Colorado.

This work is being initiated in response to the significant strengthening in silver prices, which the company believes may have a meaningful impact on cut-off grade assumptions and the overall economic profile of the existing resource.

Strategic resource re-evaluation under way

Under the project, SLR will recalculate cut-off grades using updated silver pricing and rereport the existing block model, providing an updated perspective on the current resource base and supporting future technical and economic evaluation.

SLR brings extensive experience in resource modelling and National Instrument 43-101-compliant reporting across silver and polymetallic systems in North America, including work on epithermal and porphyry-related deposits similar to Silver Cliff. Upon SLR's completion, the current NI 43-101 will be updated.

For the resource estimation, SLR will work in conjunction with Harald Hogenberg, PGeo, Viscount's qualified person and author of the company's most recent technical report. The updated resource estimate will be prepared in accordance with National Instrument 43-101 (Standards of Disclosure for Mineral Projects).

Kate deposit: foundation for resource growth

The Silver Cliff project hosts the Kate deposit, a near-surface epithermal silver system with an existing NI 43-101 resource. As outlined in the company's December, 2025, release, Kate is characterized by a continuous north-south mineralized corridor with strong potential for expansion beyond the current resource footprint.

Recent work integrating soil geochemistry, structural mapping and historical drilling has demonstrated:

• A coherent and expanding silver system extending north and northeast;
• Multiple high-priority stepout targets;
• Continued openness along key structural trends;
• Strong grades historically encountered in drilling, including multiounce silver intercepts.

The company is currently planning a 2026 drill program designed to expand and upgrade the Kate resource while supporting future technical work.

Positioned to benefit from rising silver prices

The engagement of SLR reflects Viscount's strategy to pro-actively reassess its resource base in a stronger silver price environment. The existing Kate resource was estimated using a silver price of approximately $24 (U.S.) per ounce, and the company believes that higher prevailing prices may support:

• Lower cut-off grades;
• Increased contained ounces;
• Potential expansion of economically viable mineralization;
• This work represents a critical step toward aligning the Silver Cliff project with current market conditions and unlocking additional value for shareholders.

Advancing a district-scale opportunity

Beyond the Kate deposit, Silver Cliff hosts multiple mineralized centres, including the Passiflora porphyry target, where its discovery drill hole intersected a robust gold-copper porphyry system over the entire 843.9-metre interval. The company believes the district represents a large-scale, multiphase mineral system with both near-surface silver and deeper porphyry potential.

"With silver prices strengthening, it is both timely and strategic to revisit the Kate resource with a fresh lens," said Jim MacKenzie, president and chief executive officer of Viscount Mining. "Engaging SLR, a globally respected resource advisory group, ensures that this work is completed to the highest technical standard. We believe this initiative has the potential to materially enhance our understanding of the scale and value of the Kate deposit and position the company for the next phase of growth."

Qualified persons

The scientific and technical information contained in this news release has been reviewed and approved by Mr. Hogenberg, CPG, an independent consulting geologist who is a qualified person as such term is defined under National Instrument 43-101 (Standards of Disclosure for Mineral Projects).

About Viscount Mining Corp.

Viscount is a project generator and mineral exploration company focused on advancing high-quality silver, gold and copper assets in the western United States. The company's portfolio includes the Silver Cliff silver, gold, copper project in Colorado and the Cherry Creek multimetal district in Nevada.

Viscount's strategy is to acquire, explore and advance high-potential mineral properties through systematic geological work while continuing to build partnerships that support long-term development.

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