Mr. David Greenway reports

URANIUM ONE ENGAGES DERRICK STRICKLAND TO PREPARE NI 43-101 TECHNICAL REPORT ON RECENTLY ACQUIRED FOGHORN CRITICAL MINERAL PROJECT, BC

Uranium One Mining Corp. has engaged Derrick Strickland, a consulting geologist and qualified person as defined under National Instrument 43-101 (Standards of Disclosure for Mineral Projects), to prepare a technical report on the company's recently acquired Foghorn critical mineral project, located near Birch Island in south-central British Columbia.

The engagement represents a step toward evaluating the project's historical exploration and establishing recommendations for further work. Foghorn represents an opportunity to advance multicommodity mineral system with demonstrated potential for fluorite, rare earth elements, celestite, thorium and historical uranium mineralization.

David Greenway, president of the company, commented: "Foghorn presents a compelling opportunity to build on decades of exploration and evaluate the broader critical mineral potential of this hydrothermal system. The extensive fluorite mineralization, together with historically reported occurrences of rare earth elements and celestite, provides a strong foundation for modern exploration. Reported historical exploration included in excess of 368 drill holes and approximately 17,280 metres of drilling, with previous reputable operators, including Denison Mines and Placer Dome, contributing to a substantial geological database. By integrating this historical information with modern exploration techniques, we aim to refine priority targets and assess mineral potential that may not have been fully evaluated by earlier programs."

About the Foghorn critical mineral project

The Foghorn critical mineral project hosts a historically identified volcanogenic hydrothermal system developed within altered alkalic volcanic rocks of the Eagle Bay formation, representing a concentration of critical minerals within a single mineralizing environment. Historical work indicates that this robust hydrothermal event enriched the system in fluorine, rare earth elements, strontium and other strategic minerals, creating a broad, structurally controlled mineralized corridor with significant exploration upside.

One of the distinguishing characteristics of the Foghorn critical mineral project is the historically reported occurrence of rare earth elements and celestite in association with fluorite mineralization. Historical analyses identified the presence of several rare earth elements, including lanthanum, cerium, yttrium, samarium, gadolinium, dysprosium and ytterbium. Reported historical rare earth oxide values ranged from 0.24 per cent to 1.88 per cent REO, including composite values of approximately 1.03 per cent REO. Historical geological records also identify the presence of the rare-earth-bearing mineral bastnesite, further highlighting the project's potential for multicommodity mineralization.

At the core of the project lies an extensive fluorite-rich system that has been traced for at least 410 metres along strike, with a reported width of approximately 38 metres (true width unknown), remains open both along strike and at depth, and is closely associated with a strong hydrothermal alteration footprint and well-developed structural controls.

Historical drilling returned notable fluorite intersections, including 28 per cent CaF2 over 40 feet, yet several of the strongest mineralized areas remain effectively untested. The lack of meaningful follow-up work beyond these intercepts highlights a compelling opportunity to expand the known mineralized footprint.

The Foghorn critical mineral project comprises approximately 40 Crown-granted mineral claims covering approximately 614 hectares in British Columbia. The project has an extensive exploration history, with past operators including Denison Mines Ltd. and Placer Dome, as identified in historical records. Reported historical exploration between 1943 and 1976 included approximately 17,280 metres of drilling in 368 surface and underground holes.

The Foghorn critical mineral project hosts historically identified fluorite and uranium mineralization that provides a starting point for exploration targeting and evaluation of the project's critical mineral potential. Government geological records also identify fluorites associated with celestite and minor rare-earth-bearing minerals, highlighting additional opportunities for technical assessment. The company's planned technical review will assess these historical data sets, refine geological interpretations and identify priority targets for follow-up exploration.

Management believes the project represents a rare opportunity to evaluate a district-scale critical mineral asset where fluorite, rare earth elements and celestite occur together within a large and well-developed hydrothermal system. With the benefit of modern exploration methods, advanced geochemistry, updated geophysical techniques and contemporary geological modelling, the company believes there is potential to further define, expand and unlock value from mineralization that has received only limited attention despite decades of historical exploration.

Scope of the National Instrument 43-101 technical report

The proposed NI 43-101 technical report is intended to provide an independent geological evaluation of the Foghorn critical mineral project, incorporating available historical exploration records, geological mapping, drilling information and mineralization data.

Qualified person

The scientific and technical information contained in this news release has been reviewed and approved by Mr. Strickland, a consulting geologist who is a qualified person as defined under National Instrument 43-101.

About Uranium One Mining Corp.

Uranium One is a Canadian mineral exploration company focused on the acquisition, exploration and development of uranium projects and select battery metal assets. The company is advancing a diversified portfolio of exploration-stage projects in Canada, Paraguay and Argentina, with a strategic focus on assets positioned to benefit from the increasing global demand for nuclear energy and secure energy supply chains.

The company's projects include the Quark uranium project, the Yuty Prometeo uranium project and the Nucleon uranium project, each of which offers significant exploration upside and potential for resource expansion.

Uranium One is committed to responsible exploration practices, disciplined capital allocation and the creation of long-term shareholder value through the systematic advancement of its project portfolio.

We seek Safe Harbor.