F3 Uranium starts EM surveys at Broach Lake

Executive Summary

• F3 Uranium Corp. has begun a high‑resolution stepwise moving‑loop electromagnetic (SWMLEM) survey covering ~65 km of priority ground at the Broach Lake property within its 100% owned Patterson Lake North project.
• The survey targets the Tetra zone conductor and the area between Tetra and historic drill hole PAT‑16‑002 to improve targeting and reduce the number of required drill holes.
• The program follows earlier successful EM work, geochemical sampling (423 ppm U over 0.5 m), and drilling that identified high‑grade uranium intervals in the Tetra zone.

Key Details

• Survey Scope: ~65 km of stepwise moving‑loop electromagnetic (SWMLEM) lines on a 200 m spaced grid, covering a 1,600 m strike length that includes the ~1,200 m corridor between the Tetra zone and drill hole PAT‑16‑002.
• Objective: Detect subtle basement‑hosted conductors beneath highly conductive overburden to increase confidence in conductor location and lower drilling inventory.
• Historical Context:
• Aug 5 2025 – Intercepted a 67.0 m total composite radioactivity zone at Tetra.
• July 21 2025 – Maiden geochemical assay from PAT‑16‑002 returned 423 ppm U over 0.5 m.
• Feb 11 2025 – Initiated exploration program with a 41 km moving‑loop time‑domain EM (MLTDEM) survey.
• Mar 18 2025 – First anomalous radioactivity intersected in drill hole PLN25‑202 (six zones over 90 m).
• Apr 15 2025 – Discovered Tetra zone in drill hole PLN25‑205 with a 1.0 m high‑grade interval (2.50 % U₃O₈) within a 22.5 m mineralized section averaging 0.26 % U₃O₈ (384.5–407.0 m).
• Commentary: Sam Hartmann, VP Exploration, highlighted that the new SWMLEM survey provides tighter control over conductor locations compared with earlier first‑pass surveys and is expected to reduce drilling requirements.
• Project Overview: The Patterson Lake North (PLN) project spans 42,961 ha in the southwestern Athabasca basin, adjacent to Paladin’s Triple R and NexGen’s Arrow high‑grade uranium deposits. It comprises:
• JR zone discovery on the 4,074 ha Patterson Lake North property.
• Minto property (19,864 ha).
• Broach property (19,022 ha) hosting the Tetra zone, located ~13 km south of the JR zone.
• Qualified Person: Raymond Ashley, P.Geo., President & COO, reviewed and approved all technical information per NI 43‑101.

Notable Quotes

“This tighter survey based on 200 m spaced lines will give us greater control over local conductor locations and reduce exploration drilling.” – Sam Hartmann, Vice‑President of Exploration, F3 Uranium Corp.