Announcement • Jul 21

F4 Uranium Corp Commences Airborne Mobile Magneto Tellurics Survey At Wales Lake Project

F4 Uranium Corp. announced the commencement of an airborne Mobile Magneto Tellurics (Mobile MT) survey over the western portion of its Wales Lake Project, located just outside of the southwestern Athabasca Basin, in search of the Patterson Lake Corridor (PLC) on Wales Lake. The PLC and its associated parallel trends host two major uranium deposits and three recent high-grade discoveries within 30km to the northeast of the Wales Lake Project. Following the closing of a brokered private placement for gross proceeds of CAD 1.0 million, this program is being funded from the placement and is the first phase of work on F4's western Athabasca portfolio which includes Todd and Wales Lake and will be the focus of summer exploration in 2026. The Patterson Lake Corridor (PLC) is a prolific conductive corridor which hosts both NexGen Energy's Arrow (30km to the northeast) and Paladin's Triple R deposits (22km to the northeast). In addition, the PLC is accompanied by the parallel Saloon Trend which hosts Paladin Energy's newly announced Atlas discovery (20 kms to the northeast), their high-grade Saloon discovery from 2024 and NexGen Energy's Patterson Corridor East (PCE) discovery. Both highly prospective corridors are interpreted to trend down towards and potentially through F4's Todd and Wales Lake Projects and locating them across the Todd and Wales Properties is the Company's primary objective in the near term. In 2025, F4 completed the same airborne MT survey on its Todd Lake Project, which already identified possible extensions to the Patterson Lake Corridor (PLC) and the Carter Trends within the Clearwater Domain. Now in 2026 F4 has contracted Expert Geophysics Surveys Inc. to complete the same survey, which will consist of approximately 700 line kilometres of flying, with the goal of determining if the trends observed on the Todd property continue onto the western extent of the Wales Lake property. The program marks the first work of summer 2026 on F4's Western Athabasca portfolio with plans for additional work on Todd Lake and Wales Lake in the coming months. The nearby Tetra Zone discovery, just four kilometres northeast of Todd Lake in the Clearwater Domain, already shows this setting can host high-grade uranium mineralization. This airborne survey is the first step: mapping the corridors geophysically from the air. Based on the results, the company will tighten up those targets with ground geophysics, before moving to drill-testing the most prospective of them. The Wales Lake Project consists of the Wales Lake East and Wales Lake West properties, both 100% owned, permitted and drill ready with strong airborne and ground conductor targets. Significantly underexplored with only two historic drillholes, the Wales Lake Project is located just outside of the Southwestern Athabasca Basin within 25km of Paladin's Triple R and NexGen Energy's Arrow deposits. A series of recent discoveries including F3 Uranium's JR and Tetra Zones, NexGen Energy's PCE occurrence, and Paladin Energy's Saloon area further highlight the uranium discovery potential near the Southwestern Athabasca Basin. Wales Lake is accessed by Provincial Highway 955, which transects the property. F4 Uranium's 100% owned Todd Lake Project is located 14km Southwest of Paladin's Triple R and Nexgen Energy's Arrow deposits and lies along trend of the Patterson Lake corridor which hosts the aforementioned deposits. Significantly underexplored with no historic drilling, the Todd Lake Project is located just outside of the Southwestern Athabasca Basin. A series of recent discoveries including Nexgen Energy's PCE occurrence, Paladin Energy's Saloon area and F3 Uranium's JR and Tetra Zones, the latter located just 4km Northeast of the top of Todd Lake, further highlight the uranium discovery potential near the Southwestern Athabasca Basin. Todd Lake is accessed by Provincial Highway 955, located to the east of the property. The technical information in this news release has been reviewed and approved on behalf of the Company by Sam Hartmann, P.Geo., President & Chief Operating Officer of F4, and a qualified person as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects. This news release also refers to neighboring properties in which F4 Uranium has no interest, and the Qualified Person has been unable to verify the information from those properties. Mineralization on those neighboring properties is not necessarily indicative of mineralization on the Wales Lake Project. For additional information on the Wales Lake Project, please refer to the reports titled "Technical Report for the Wales Lake West Property, Northern Saskatchewan, Canada" dated February 3, 2025 and "Technical Report for the Wales Lake East Property, Northern Saskatchewan, Canada" dated May 12, 2025, both available at www.sedarplus.ca, and prepared in accordance with NI 43-101.

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