Mr. Graydon Kowal reports

GUARDIAN EXPLORATION COMPLETES HIGH-RESOLUTION AIRBORNE GEOPHYSICAL SURVEY AT MOUNT CAMERON PROJECT, YUKON

Guardian Exploration Inc. has successfully completed a high-resolution airborne magnetic and radiometric survey over its 100-per-cent-owned Mount Cameron project, an exploration-stage silver-lead-zinc project located in the Mayo mining district of central Yukon, Canada.

Highlights

• High-resolution airborne magnetic and radiometric survey completed across the Mount Cameron project.
• Survey designed to identify structural features, alteration zones and geological contacts that may control high-grade silver-lead-zinc mineralization.
• Final processed geophysical products will be integrated with existing geological, geochemical and lidar (light detection and ranging) data sets.
• Processed geophysical interpretations will assist in prioritizing drill targets for the company's continuing exploration program.

The survey was completed by Precision GeoSurveys Inc. of Langley, B.C., using a helicopter-borne geophysical platform designed to acquire magnetic and radiometric data across the project area. The survey totalled approximately 669 line kilometres over a 30.3-square-kilometre block, flown on 108-degree/288-degree survey lines at 50-metre spacing (tie lines at 500 m) and a nominal flight height of 40 m above ground, using a cesium-vapour magnetometer and a 21-litre NaI(Tl) gamma-ray spectrometer. The survey is expected to enhance the company's understanding of the geological setting, distribution of lithological units and structural controls associated with mineralization at Mount Cameron.

Graydon Kowal, president and chief executive officer of Guardian Exploration, commented: "The completion of this airborne survey marks another significant step forward for Mount Cameron. Modern airborne geophysics will provide an important new layer of processed geological information that will complement our existing geological, geochemical and lidar data sets. Integration of the magnetic and radiometric geophysical data will significantly enhance our understanding of the project and help prioritize high-quality drill targets for the next phase of exploration at Mount Cameron."

Preliminary data sets received from the survey confirm complete coverage of the planned survey block and include both Total magnetic intensity (TMI) and radiometric measurements.

The company expects to receive final processed geophysical products and interpretations in the coming weeks.

Mount Cameron hosts numerous historical high-grade silver, lead and zinc occurrences, and remains significantly underexplored by modern exploration methods. Guardian believes the combination of advanced airborne geophysics, detailed geological mapping and systematic exploration provides an excellent opportunity to identify additional high-priority exploration targets across the property.

About the Mount Cameron project

The Mount Cameron Ag-Pb-Zn (silver-lead-zinc) project is an exploration-stage polymetallic project containing several historical high-grade mineral occurrences. It is located within Yukon's Mayo mining district and comprises 154 Yukon quartz mining claims covering approximately 3,017 hectares.

Yukon Minfile and historical assessment reports describe the project as hosting both structurally controlled silver-lead-zinc vein mineralization and carbonate-replacement-deposit-(CRD)-style mineralization along the eastern margin of the prolific Keno Hill silver district.

The project encompasses two significant historical mineral occurrences documented in the Yukon Minfile database:

• Clark (Minfile 106D 011) -- classified by Yukon Minfile as a deposit, consisting of CRD-style Ag-Pb-Zn mineralization;
• Cameron (Minfile 106D 012) -- classified by Yukon Minfile as a prospect, comprising a structurally controlled Ag-Pb-Zn vein and replacement system.

Data compilation and digitization

Guardian's geological team has compiled and digitized historical exploration, surface and underground drilling, and analytical data from available assessment reports for the Clark and Cameron occurrences using Leapfrog 3-D modelling software. Preliminary compilation completed to date includes 104 drill holes, several trenches, and considers historic reported geological observations and interpretations. Investigation and confirmation of these historic results is one of the objectives of the 2026 surface exploration program and planned twinning of historic drill holes.

Historic core stacked at the Clark occurrence will be examined, relogged and resampled, subject to confirmation that the core is sufficiently intact and complete.

Further information regarding the Mount Cameron project is available on the company's website.

The company expects to provide additional updates throughout the exploration season, including progress on field activities, commencement of diamond drilling and assay results as they become available.

Ken Reading -- Canadian prospector and geologist

The company also wishes to acknowledge the passing of legendary Canadian prospector and geologist Kenneth (Ken) Reading (October, 1929, to July, 2026), whose remarkable career in mineral exploration spanned more than 80 years. A renowned Canadian prospector and geologist, Mr. Reading began his career in the 1940s and spent decades exploring some of Canada's most prospective mineral districts, including multiple field seasons in Nunavut. Throughout his distinguished career, he was credited with numerous significant mineral discoveries, including the Sundog gold project, and contributed to the geological understanding of several important Canadian mineral camps. Mr. Reading's connection to Sundog alone spanned nearly four decades, beginning with his first visits to the property in the mid-1980s. His exceptional geological insight, unwavering curiosity and lifelong passion for mineral exploration left an enduring legacy within the Canadian mining industry. Beyond his remarkable discoveries, Mr. Reading will be remembered for his generosity in sharing knowledge, mentoring fellow geologists and inspiring generations of explorers.

Graydon Kowal, president and chief executive officer of Guardian Exploration, commented: "Ken Reading was one of the finest geologists I have ever known. Those of us fortunate enough to know him will remember not only his remarkable discoveries, but also his thoughtful typewritten letters -- carefully crafted and filled with geological insight, encouragement, and wisdom gathered over decades in the field. In an era of e-mails and text messages, Ken's personal correspondence reflected the same patience, precision and integrity that defined his work as a geologist. His passing is a tremendous loss to our industry, but his legacy will live on through the countless geologists and explorers he inspired."

Commitment to first nations and local communities

Guardian acknowledges that the Mount Cameron project lies within the Traditional Territory of the First Nation of Na-Cho Nyak Dun (FNNND). The company is committed to building a respectful, long-term relationship with the FNNND and the Mayo community through collaboration, transparency and shared benefits.

Guardian will prioritize local employment and training opportunities, support procurement from indigenous-owned businesses wherever practical, and maintain high standards of environmental stewardship throughout its exploration activities. The company is committed to maintaining open and continuing dialogue with the FNNND and local stakeholders as work advances.

Qualified person

The scientific and technical information contained in this news release has been reviewed and approved by Steven Dudka, BSc, PGeo, EGBC No. 21326, a consulting geologist to the company who is a qualified person as such term is defined under National Instrument 43-101 -- Standards of Disclosure for Mineral Projects. The qualified person has been unable to verify the historical exploration information, including drill results, reported in this news release. Although the company considers these results relevant for exploration targeting, they should not be relied upon and are not necessarily indicative of future exploration results.

We seek Safe Harbor.