UraniumX and F4 complete Murphy Lake drilling, define two mineralized trends

SIX OF NINE HOLES RETURN ANOMALOUS RADIOACTIVITY IN EXPANDED 4,092 METRE CAMPAIGN VANCOUVER, BC / ACCESS Newswire / July 7, 2026 / UraniumX Discovery Corp. (CSE:STMN)(OTCQB:STMXF)(FSE:Q7S) (" UraniumX " or the " Company ") is pleased to announce that it has completed its expanded 2026 diamond drill program at its flagship Murphy Lake Property (the "Property") in the Athabasca Basin, Saskatchewan. Operator F4 Uranium Corp. (TSXV:FFU) ("F4") directed the program, which was fully funded by UraniumX under the existing option agreement through which the Company is earning up to a 70% interest in the Property. The program was expanded during execution from an originally planned approximately 2,500 metres to a completed 4,092 metres in nine drill holes across six target areas.

Drilling tested priority target areas identified by the 2026 moving loop electromagnetic ("MLEM") survey and defined two distinct trends: the Murphy Lake North Trend and the Murphy Lake South Trend. Anomalous radioactivity was intersected in five of the six target areas tested, with six of the nine holes returning elevated radioactivity and multiple holes displaying strong hydrothermal alteration at the unconformity. Core has been logged and sampled, and assay results are pending.

The final two holes of the program, ML26-022 and ML26-023, were completed on the Murphy Lake South Trend at Target Areas 6 and 3 respectively, testing two modelled conductors running parallel to the conductor that hosts mineralized hole ML22-006 (0.065% U3O8 over 2.5 metres, including 0.242% U3O8 over 0.5 metres; see F3 Uranium Corp. news release dated August 10, 2022). ML26-023 intersected anomalous radioactivity of up to 400 cps over 0.5 metres in basement rocks just below the unconformity, with downhole gamma readings greater than 500 cps over a total of 3.2 metres peaking at 2,696.9 cps, the highest downhole gamma peak reported during the progr