Mr. Raymond Ashley reports

F4 AND URANIUMX SUCCESSFULLY EXTEND MURPHY LAKE CONDUCTORS BY 1.45 KM

F4 Uranium Corp. has extended ground conductors by 1.45 kilometres at the Murphy Lake property, Athabasca basin. The partner-financed moving-loop electromagnetic (MLEM) ground EM survey, which was previously announced to be in progress (see F4 news release dated March 18, 2026), has now been completed (see F4 news releases dated Feb. 17, 2026, and March 18, 2026). The property is located five kilometres south of IsoEnergy's high-grade Hurricane deposit and four kilometres east of Cameco's La Rocque Lake uranium zone.

Interpretation of the new data is preliminary but very encouraging and shows that the prospective conductor systems have been extended by an additional 1.45 km, significantly increasing the size of the high-priority target area. The new conductor extensions display a strong correlation with basement resistivity lows, particularly in the corridor where drill hole ML22-012 was drilled at the northern end of the survey -- which intersected strong uranium geochemistry in Athabasca Sandstone (up to 56 parts per million U (uranium)) immediately above the unconformity (see F3 Uranium news release dated Aug. 10, 2022) -- and drill hole ML22-006, which returned a radioactive intercept assaying 0.065 per cent U3O8 over 2.5 metres, including 0.242 per cent U3O8 over 0.5 metre (see F3 Uranium news release dated Aug. 10, 2022).

Drilling at Murphy Lake, where F4 is the operator, is scheduled to commence in the middle of May, 2026. The program is fully financed by UraniumX Discovery Corp. in accordance with the terms of the option agreement to earn up to a 70-per-cent interest in the Murphy Lake property (see F4 news release dated Feb. 2, 2026).

Erik Sehn, PGeo, vice-president, exploration, commented: "Encouragingly, these early ground EM results are exactly what we hoped to see. The survey successfully extended the conductors into the areas we didn't cover last time, adding a total of 1.45 km of strike length. This greatly expands the prospective corridor along our two key historic drill holes and we are excited to begin drilling in the middle of May with our partner company UraniumX."

About Murphy Lake

F4's 609-hectare Murphy Lake property is located in the northeastern corner of the Athabasca basin, 30 kilometres northwest of Orano's McLean Lake deposits, five km south of IsoEnergy's Hurricane uranium deposit and four km east of Cameco's La Rocque Lake uranium zone where drill hole Q22-040 intersected 29.9 per cent U3O8 over 7.0 m. The 2022 maiden drill program at the Murphy Lake property consisted of 14 completed drill holes totalling 6,850 m; drill hole ML22-006 intersected 0.065 per cent U3O8 over 2.5 m from 322.5 m to 324.5 m, including 0.242 per cent U3O8 over 0.5 m.

Marketing agreement

The company also announces that it will extend the digital marketing services agreement with Connect 4 Marketing Ltd. to provide the company with comprehensive digital marketing services including content creation (videos ad creatives, landing pages), influencer management, newsletter coordination and targeted advertising campaigns in both English and German markets (previously announced in the news release of March 31, 2026). F4 agrees to pay an additional fee of $50,000.

Qualified person

The technical information in this news release has been reviewed and approved on behalf of the company by Sam Hartmann, PGeo, president and 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 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 Murphy Lake property.

For additional information on the Murphy Lake property, please refer to the National Instrument 43-101 report titled "Technical Report For The Murphy Lake Project, NE Athabasca Basin, Saskatchewan, Canada" effective March 20, 2024, available at SEDAR+.

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 17 wholly owned properties totalling roughly 157,000 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.

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