F3 Intersects Uranium Mineralization in Multiple Step-Out Holes at the Tetra Zone

• Event: F3 Uranium Corp. announced drilling results from its winter 2026 program at the Tetra Zone of the Patterson Lake North (PLN) Project on April 22, 2026.
• Drilling Results: Three out of six step-out holes intersected uranium mineralization using handheld spectrometers/scintillometers.
  • Hole PLN26-226: 0.5 m up to 1,400 cps.
  • Hole PLN26-225: Two intervals (340 cps and 740 cps).
  • Hole PLN26-222: 0.5 m at 330 cps.
• Geological Update: A new study confirms the Tetra Zone is genetically linked to the high-grade JR Zone, increasing district-scale discovery potential.
• Mineralization Style: Uraninite generations identified (U1, U2, U3), with U3 being dominant at Tetra.
• Future Work: Priorities include applying the model across A1/B1 trends and Harrison Fault; planning 3D DCIP IP surveys.
• Administrative: Granted 240,000 stock options to a marketing firm at $0.20/share expiring March 27, 2031.

• Incremental Validation: The news confirms the structural model and genetic link between Tetra and JR Zones but relies on handheld spectrometer data (cps) rather than full assay grades for these specific step-out holes. This is less material than previous assay-driven announcements (e.g., Dec 2025 Resource Estimate).
• Capital Context: The announcement follows a $5.5 million bought deal closing on April 17, 2026. The capital raise was intended to fund exploration; this news confirms the deployment of those funds into high-priority targets.
• Market Expectation: Given the winter drill program launch in February 2026 and previous extensions (Jan 2026), these results are consistent with management's stated roadmap rather than a surprise discovery.
• Risk Mitigation: The genetic link to JR Zone reduces geological risk for Tetra, but without full assay grades on the new holes, economic potential remains unquantified compared to the JR Indicated Resource (11.8M lbs).

• Company: F3 Uranium Corp. (TSXV: FUU).
• Flagship Project: Patterson Lake North (PLN) in the Athabasca Basin, Saskatchewan.
• Key Assets:
  • JR Zone: Hosts an initial Indicated Mineral Resource of 11.8M lbs U3O8 at 4.39% grade (Dec 2025). High-grade domain of 10.79M lbs @ 12.23%.
  • Tetra Zone: Newly discovered high-grade zone on the Broach Property (~13km south of JR), extending plunge length to 135m (Jan 2026).
• Land Package: 42,961 ha total across Patterson Lake North, Minto, and Broach properties.