Guardian Exploration Completes High-Resolution Airborne Geophysical Survey at Mount Cameron Project, Yukon

Calgary, Alberta--(Newsfile Corp. - July 16, 2026) - Guardian Exploration Inc. (TSXV: GX) (OTCQB: GXUSF) (FSE: R6B) ("Guardian" or the "Company") is pleased to announce the successful completion of a high-resolution airborne magnetic and radiometric survey over its 100%-owned Mount Cameron Project ("Mount Cameron" or the "Project"), an exploration-stage silver-lead-zinc project located in the Mayo Mining District of central Yukon, Canada. Highlights

Calgary, Alberta--(Newsfile Corp. - July 16, 2026) - Guardian Exploration Inc. (TSXV: GX) (OTCQB: GXUSF) (FSE: R6B) ("Guardian" or the "Company") is pleased to announce the successful completion of a high-resolution airborne magnetic and radiometric survey over its 100%-owned Mount Cameron Project ("Mount Cameron" or the "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 datasets. Processed geophysical interpretations will assist in prioritizing drill targets for the Company's ongoing exploration program.

The survey was completed by Precision GeoSurveys Inc. ("Precision") of Langley, British Columbia, 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 km2 block, flown on 108°/288° survey lines at 50 m 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 & 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 datasets.

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 datasets received from the survey confirm complete coverage of the planned survey block and include both Total Magnetic Intensity ("TMI") and radiometric measurements. Figure 1: Mount Cameron Property Location, Yukon, Canada To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/5066/305397_f95fc974e45b0871_002full.jpg

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.

Figure 2: Image of the Mount Cameron Ag-Pb-Zn Project, Yukon, Canada (June 2026) To view an enhanced version of this graphic, please visit: https://images.newsfilecorp.com/files/5066/305397_f95fc974e45b0871_003full.jpg About the Mount Cameron Project The Mount Cameron Ag-Pb-Zn 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; and - 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 3D 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. Clark Occurrence: Selected Intersections* | Section | Hole |

From | To | Length | Ag | Pb | Zn | | (ft) (m) | (oz/ ton) (g/t)

| (%) | (%) | |||| | 175E | H-12 | 0 | 8 | 8 (2.4) | 5.58 (191.3) | 5.85 | 10.56 | | 190E | Trench

| 31 (9.4) | 10.68 (366.2) | 9.4 | 4.6 | || | 190E | W-1 | 0 | 45 | 45 (13.7) | 4 (137.1)

| 6 | 7.08 | | 304E | H-6 | 0 | 27 | 27 (8.2) | 6.49 (222.5) | 5 | 3.93 | | 300E | Trench | 0 | 13 | 13 (4.0) | 15.7 (538.3)

| 15.5 | 6.4 | | 310E | W-9 | 42 | 56.5 | 14.5 (4.4) | 11.5 (394.3) | 9.14 | 6.69 | | 325E | H-17 | 34 | 79 | 45 (13.7) | 3.52 (120.7) | 3.31 | 7.26 | | 352E | H-21

| 23 | 41 | 18 (5.5) | 6.77 (232.1) | 6.5 | 6.3 |