enCore Energy Corp. (NASDAQ: EU) reported results from its ongoing drilling program at the Alta Mesa East Project in South Texas, according to a press release dated June 16, 2026.

The latest batch of results covers 20 drill holes, of which 12 were found to be mineralized. Six of those holes returned Grade Thickness (GT) values ranging from 0.43 to 1.76. The company considers a GT value of 0.3 or above suitable for inclusion in a wellfield.

The top result came from drill hole 12-20, which intersected 8.5 feet of mineralization grading 0.199% U3O8 at a depth of 487 feet, for a GT of 1.69. The total GT for that hole was 1.76 when combining both sand horizons intercepted.

The program has identified uranium mineralization within sands at average depths of 400 to 460 feet and 480 to 520 feet. Six rigs are currently drilling on 400 to 500 foot spacing at an average depth of 600 feet, with seven east-west fence lines underway to characterize mineralization across the property.

The Alta Mesa East Project is located immediately adjacent to enCore's existing Alta Mesa Uranium Project, which operates a licensed Central Processing Plant with a total capacity of 1.5 million pounds of uranium per year. The Alta Mesa Uranium Project operates under a 70/30 joint venture with Boss Energy Limited, managed by enCore.

William M. Sheriff, Executive Chairman of enCore, said the goal is "to confirm mineralization at levels that will enable Alta Mesa East to directly feed the fully operational Alta Mesa Central Processing Plant."

All mineralization reported lies within the Pliocene Goliad Formation. The technical disclosure was reviewed and approved by John M. Seeley, Ph.D., enCore's Vice President of Exploration and Production and a Qualified Person under Canadian National Instrument 43-101 and U.S. SEC S-K 1300.