F3 Targets New Discoveries in 2026 Summer Exploration Program Across PLN

Executive Summary

• F3 Uranium Corp. announced its 2026 summer exploration program for its 100% owned Patterson Lake North Project in the Western Athabasca Basin, with drilling expected to commence in early July 2026.
• The program will initially comprise approximately 4,000 metres of drilling across new drill-ready targets on the Broach, Patterson Lake North, and Minto properties, advancing trends identified through reinterpretation of historic and new geophysical/geochemical datasets.
• Ongoing 3D-DCIP and resistivity surveys are being conducted directly over the Tetra Zone, while summer work focuses on advancing regional targets and follow-up drilling near historic anomalous intersections.
• The Company also entered into a three-month marketing and investor relations agreement with Delray Capital Markets Group for an initial fee of US$200,000.

Key Details

• Drilling Program: Approximately 4,000 metres planned, commencing early July 2026.
• Project Land Package: 42,961 hectares total, comprising the Patterson Lake North Property (4,074 ha), Minto Property (19,864 ha), and Broach Property (19,022 ha).
• Broach Property (Tetra Zone): 3D-DCIP and resistivity survey underway over the Tetra structure. Targeting concentrated in the Patterson West Area (4 prioritized targets near Tetra; historic core sampling returned 423 ppm U) and the Broach Lake South (BRS) Area (2 drill-ready targets, follow-up to 2022 drilling intersecting graphite-rich faults and strong alteration).
• Patterson Lake North Property: Hosts the high-grade JR Zone discovery (~23 km NW of Paladin's Triple R). Summer work focuses on advancing regional trends, including targets in the Harrison area and along the B1 conductor, toward the drill-ready stage.
• Minto Property: Hosts priority conductive corridors parallel to the JR Zone's A1 conductor. The A4 trend spans ~7 km. Summer work targets follow-up drilling near historic hole PLN14-021 (drilled 2014), which intersected anomalous uranium (up to 44 ppm U) and 698 ppm boron ~413 m above the Athabasca unconformity. A magnetotelluric survey identified a significant resistivity low system with newly defined ground conductors, upgrading the corridor to drill-ready.
• Marketing & IR Agreement: Entered into an agreement with Delray Capital Markets Group for investor relations, marketing, and media services. Initial 3-month term beginning July 1, 2026, for a fee of US$200,000. Optional 3-month extension for up to US$150,000 (subject to TSXV approval). Arm's length transaction with no equity ownership by the consultant.
• Qualified Person: Raymond Ashley, P.Geo., President & COO, approved all technical information per NI 43-101.
• Reference Report: NI 43-101 Technical Report for the Patterson Lake North Project dated January 20, 2026, available on SedarPlus.

Notable Quotes

• Sam Hartmann, Vice President Exploration: "Our 2026 summer program reflects the systematic, land-package-wide approach that has driven our discoveries at the JR and Tetra Zones. The Tetra Zone was a game-changing discovery — the first in the Clearwater Domain, an area long overlooked because of its high magnetic profile and historically weak conductor response. It showed that by applying new deposit models where others weren't looking, F3 can make discoveries in unexpected places. We are now bringing that same first-mover mindset across the Project, integrating a combination of geophysical methods — magnetotellurics, resistivity, ground EM and gravity, tailored to each target — to build a deep pipeline of drill-ready targets. This season we are advancing the most prospective of them while continuing to unlock the significant untested potential that remains across all three properties."