F4 Uranium to conduct geophysics work at Murphy Lake

Executive Summary

• F4 Uranium Corp. announces the commencement of ground electromagnetic (EM) geophysics at its Murphy Lake property, financed by partner UraniumX Discovery Corp.
• The survey involves 9.2 line kilometres of moving-loop electromagnetics (MLEM) designed to tighten line spacing around known prospective conductor systems to guide a planned drill program in late spring 2026.
• The Murphy Lake property is strategically located in the Athabasca basin, situated 5 km south of IsoEnergy’s Hurricane deposit and 4 km east of Cameco’s La Rocque Lake zone, building on previous 2022 drilling that identified strong uranium geochemistry and alteration.

Key Details

• Geophysics Program: EarthEx Geophysical Solutions is completing four lines totaling 9.2 line kilometres of moving-loop electromagnetics (MLEM).
• Objective: The survey aims to build on previous ground geophysics by tightening line spacing to test areas around and between two known prospective conductor systems previously identified by F4.
• Future Plans: Results will be integrated into the project model to guide an upcoming drill program planned for late spring 2026.
• Financing: The work program is financed by UraniumX Discovery Corp. under an option agreement allowing UraniumX to acquire up to a 70% interest in the Murphy Lake property. F4 acts as the operator during the earn-in period.
• Historical Drilling (2022):
  • Total: 14 completed drill holes totaling 6,850 meters.
  • Hole ML22-006: Intersected 0.242% U3O8 over 0.5 m (within a broader 2.5 m interval of 0.065% U3O8 from 322.5 m to 324.5 m). Also identified intense hematite and limonite alteration in sandstone and graphitic shear zones.
  • Hole ML22-012: Located 1.4 km north of ML22-006; interpreted to have overshot the conductive basement target but intersected strong 56 ppm uranium in a 0.5 m sandstone sample just above the unconformity.
• Property Location: 609-hectare property in the northeastern corner of the Athabasca basin, 30 km northwest of Orano's McLean Lake deposits.
• Neighboring Context: Proximity to major uranium discoveries including IsoEnergy's Hurricane and Cameco's La Rocque Lake (where hole Q22-040 intersected 29.9% U3O8 over 7.0 m).

Notable Quotes

• Erik Sehn, Vice-President of Exploration: "F4 Uranium considers Murphy Lake to be one of its best exploration properties considering its strong early indicators, and close proximity to major uranium discoveries including IsoEnergy's Hurricane and Cameco's La Rocque Lake project. Along with our partners UraniumX, we look forward to completing this geophysical program to assist in target generation for the next drill program."