F4 Uranium outlines resistivity-low zone at Cree Bay

Mr. Raymond Ashley reports F4 DEFINES DRILL TARGETS WITH AIRBORNE MT SURVEY ON THE CREE BAY PROPERTY F4 Uranium Corp. has released results from a recently completed airborne mobile magnetotellurics (MT) survey over the Cree Bay project, located in the southwestern Athabasca basin. The new MT data reveal a broad resistivity-low zone through the heart of the property, defining a key area for follow-up exploration along the promising structural offset inferred from 2019 drilling. The Cree Bay is located along the Virgin River conductive corridor and lies along strike of Orano and Geiger Energy's joint venture Fir Island property, approximately 10 kilometres to the northeast of Cree Bay. The mobile MT survey, completed in September, 2025, was designed to provide an updated geophysical overview of the Cree Bay project and assist in defining new exploration target areas. Limited drilling completed in 2019 identified significant faulting, hydrothermal alteration and strongly elevated boron values in the sandstone in drill hole CB19-001. The drilling intersected the Athabasca unconformity at 565 metres, approximately 350 metres deeper than expected, suggesting the presence of a significant structural offset, a favourable environment for uranium mineralization. The newly defined resistivity-low zone, combined with the geophysical models from ground data collected in 2022, will be used to refine drill targets. In addition, the broader MT data set provides valuable context for defining additional target areas for future focused ground geophysical surveys and follow-up exploration drilling. Mobile MT surveys have also been completed on the Todd, Clearwater West and Grey Island properties. Interpretation of the mobile MT survey data for those data sets is under way, and the results will be disclosed as they become available. Erik Sehn, PGeo, vice-president, exploration, commented: "The F4 technical team has established a proven and effective approach to uranium exploration in the Athabasca basin, having been directly involved in four major uranium discoveries, including two within the past three years. Cree Bay is an exciting project, given its proximity to Orano and Geiger Energy's Fir Island property and prospective East Channel fault, which the MT survey shows to continue onto the Cree Bay property. Incorporating and merging the results from this survey with all previous data, the F4 team will apply its understanding of geophysical signatures and geological controls from previous uranium discoveries to define strong target areas at Cree Bay in the search for the next uranium deposit." About the Cree Bay project F4 Uranium's 100-per-cent-owned Cree Bay property comprises 16 mineral claims totalling 14,080 hectares located 20 kilometres south of Stony Rapids within the northern edge of the Athabasca basin along the Virgin River conductive corridor. Drilling on the property in 2019 revealed significant faulting, hydrothermal alteration and elevated boron in the sandstone in hole CB19-001. The property lies 10 kilometres along strike to the southeast from Orano and Geiger Energy's joint venture Fir Island property. Qualified person The scientific and technical information in this news release has been prepared in accordance with the Canadian regulatory requirements set out in National Instrument 43-101, Standards of Disclosure for Mineral Projects, and approved on behalf of the company by Sam Hartmann, PGeo, president and chief operating officer of F4 Uranium, a qualified person. Mr. Hartmann has reviewed and approved the data disclosed. This news release also refers to neighbouring 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 neighbouring properties is not necessarily indicative of mineralization on the Cree Bay property. About F4 Uranium Corp. F4 Uranium is a Canadian uranium exploration company focused on the Athabasca basin in Northern Saskatchewan and the latest uranium explorer led by the same management and exploration team with a legacy of discovery successes. The project portfolio includes 16 wholly owned properties totalling roughly 155,000 hectares, many of which are near uranium deposits, including Paladin's Triple R, Nexgen Energy's Arrow and IsoEnergy's Hurricane projects. The assets were spun out of F3 Uranium in 2024, where the technical and management team made their third and more recently fourth uranium discoveries at Patterson Lake North and Broach Lake. F4's core focus will be split between the west and east sides of the Athabasca basin as the company is establishing itself as an explorer and project generator providing shareholders renewed exposure at an early stage. We seek Safe Harbor.