F4 and UraniumX Report Anomalous Radioactivity at Murphy

Executive Summary

• F4 Uranium Corp announced initial results from the first two drillholes (ML26-015 and ML26-016) of its ~2,500m Murphy Lake drill program in the Athabasca Basin, Saskatchewan.
• Drillhole ML26-015 intersected anomalous radioactivity up to 460 cps and visually identified pitchblende in the Athabasca Sandstone approximately 3 metres above the unconformity, accompanied by intense hydrothermal alteration.
• The program is fully funded by partner UraniumX Discovery Corp. (who holds an option to earn up to 70% interest) and will advance to Target 2 following a recent Moving Loop Electromagnetic (MLEM) survey that defined multiple priority conductive targets.

Key Details

• Drill Program Scope: ~2,500m program currently completed with two holes on the northern portion of "Target Area 1", following up on historic hole ML22-012.
• ML26-015 Highlights (L1230N):
• Handheld scintillometer readings >300 cps over 1.0 m (316.5-317.5 m), peaking at 460 cps from 317.0-317.5 m.
• Downhole gamma probe readings >500 cps over 4.3 m (312.8-317.1 m) above the Athabasca Unconformity.
• Visually identified pitchblende present as bedding concordant blebs and nodules in Athabasca Sandstone just above the unconformity.
• Intense hydrothermal alteration observed: bleaching and clay alteration in the sandstone, strong chlorite alteration in basement rocks, and intervals of disseminated sulphides and graphite.
• ML26-016 Highlights: Step-out hole on the same section line (L1230N) intersected similar but less intense hydrothermal alteration; handheld scintillometer readings did not exceed 300 cps.
• Future Drilling Plans: Program will advance to Target 2 to test a conductor target along strike of the resistivity low trend identified by the May 5, 2026 MLEM survey.
• Funding & Option Agreement: Program is fully funded by UraniumX Discovery Corp. pursuant to an option agreement allowing UraniumX to earn up to a 70% interest (per July 29, 2025 release).
• Previous Results Context:
• ML22-006: 0.065% U₃O₈ over 2.5 m (including 0.242% U₃O₈ over 0.5 m) within a 4.2 m graphitic deformation zone and intense alteration.
• ML22-012 (1.4 km north): 56 ppm U in sandstone immediately above the unconformity.
• 2026 MLEM Survey: Refined and extended key conductive trends, defining up to five priority target areas including along strike from the 2022 intercepts.
• Technical & Methodology Parameters:
• Handheld spectrometer (RS-125) calibrated by Radiation Solutions Inc.; anomalous defined as >300 cps, highly radioactive >10,000 cps, off-scale >65,535 cps.
• Downhole gamma probe (QL-40GR) anomalous threshold >500 cps.
• Samples standardized at 0.5 m downhole intervals, split on-site, and sent to SRC Geoanalytical Laboratories for 63-element suite analysis (U by ICP-MS, Au by ICP-OES/AAS, B by ICP-OES).
• Company grade definitions: >1.0% U₃O₈ is "high grade"; >20.0% U₃O₈ is "ultra-high grade".
• All reported depths are downhole; true thicknesses are pending calculation.
• Property Location: 609-hectare Murphy Lake Property in the NE Athabasca Basin, SK, located 30 km NW of Orano's McLean Lake, 5 km S of IsoEnergy's Hurricane, and 4 km E of Cameco's La Rocque Lake.

Notable Quotes

• Erik Sehn, P.Geo, VP Exploration: "The presence of visually identified pitchblende in the first hole of the 2026 program, together with the associated alteration and geophysical setting, is consistent with our targeting model at Murphy Lake. We look forward to assay results and to testing the additional high-priority targets across the property."