F3 Uranium Begins 2026 Summer Drilling on New Target Areas at PLN Project

• Drilling has started under F3's 2026 summer exploration programme at the 100% owned Patterson Lake North (PLN) Project, with initial metreage expected at approximately 4,000 metres.
• The programme is testing newly defined target areas on the Broach and Minto properties, several of which are being drill tested for the first time.
• A completed 3D DCIP and resistivity survey over the Broach property is being used to refine drill targeting over the Tetra Zone structure and the surrounding Patterson West Area.
• At Minto, drilling will test the A4 conductor, a nearly 7 kilometre trend running parallel to the A1 conductor that hosts the JR Zone.
• At Broach Lake South, a newly reinterpreted conductor believed to be an extension of the Carter Trend is scheduled for its first drill test.

F3 Uranium Corp. (TSXV: FUU) (OTCQB: FUUFF) (FSE: GL7) is a Canada-based uranium exploration company operating the Patterson Lake North Project in the Western Athabasca Basin, Saskatchewan. Its work centres on the JR Zone and the Tetra Zone, located on its Broach property. F3 holds three properties in the Athabasca Basin, an area that also hosts uranium projects held by neighbouring companies Paladin and NexGen Energy.

Summer Drilling Commenced Across New Target Areas on Broach and Minto Properties at PLN Project

F3 Uranium has begun its 2026 summer drilling programme at the PLN Project, with activity extending to newly defined target areas across the Broach and Minto properties. The JR and Tetra Zones remain the company's primary discoveries at PLN. Review of geophysical, geological and geochemical data across the wider project has brought additional target areas to drill ready status. Drilling is expected to total approximately 4,000 metres in this initial phase.

The PLN Project covers 42,960 hectares along the south-western margin of the Athabasca Basin, near the Triple R deposit held by Paladin and the Arrow deposit held by NexGen Energy. The project comprises three properties: Patterson Lake North, which hosts the JR Zone; Minto; and Broach, which hosts the Tetra Zone, located approximately 13 kilometres south of JR.

Vice President Exploration Sam Hartmann commented:

"It's exciting to finally be putting the drill into some of these areas. A number of them have been in our pipeline for years, and it's only now, with the additional geophysics we've completed and a systematic reinterpretation of our historic and newly acquired datasets, that they've matured to the drill-ready stage."

Completed 3D DCIP and Resistivity Survey Over Tetra Zone Refining Drill Targets in Patterson West Area

At the Broach property, F3 has completed a 3D DCIP (direct current induced polarisation) and resistivity survey, a geophysical method used to map subsurface rock properties. Results are being interpreted to refine drill targeting over the Tetra Zone structure, building on the survey first reported in June 2026.

The surrounding Patterson West Area contains several targets defined by electromagnetic conductors and gravity low anomalies with geophysical signatures similar to those at the Tetra Zone. Four of these targets have been selected for drill testing this summer. Historic drill core sampling in the area previously returned 423 parts per million uranium along with intense bleaching, an alteration feature associated with uranium mineralising systems. These targets have not previously been followed up with drilling.

The completed survey is being used to define drill targeting ahead of this summer's programme, concentrating planned drilling on structures identified through the geophysical data rather than on wider undefined areas.

Broach Lake South Carter Trend Extension and Minto A4 Conductor Among Priority First-Time Drill Targets

At the Broach Lake South Area, a newly reinterpreted, steeply dipping conductor at the southern end of the property is interpreted to be a continuation of the Carter Trend. This target is scheduled for its first drill test this summer.

At the Minto property, drilling will test the A4 conductor, a trend spanning nearly 7 kilometres that runs parallel to, and shares a similar electromagnetic response with, the A1 conductor that hosts the JR Zone. At least one drill hole is planned around historic drill hole PLN14-021 along this trend.

These targets, together with those in the Patterson West Area, make up the set of new areas being tested for the first time under the 2026 summer programme, in addition to continued evaluation of the JR and Tetra discoveries.

Milestones and Next Steps

Drilling is underway across the Broach and Minto properties as part of F3's 2026 summer programme. Results are expected to be reported as assays and interpretations become available. Areas to be tested include the Patterson West targets surrounding Tetra, the Broach Lake South Carter Trend extension, and the Minto A4 conductor near historic hole PLN14-021. Further drill target refinement at Broach may follow as interpretation of the 3D DCIP and resistivity survey continues.

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