enCore Energy extends uranium mineralization 3,700 feet at Alta Mesa East

Canada NewsWire NASDAQ: EU TSXV: EU www.encoreuranium.com DALLAS , June 1, 2026 /CNW/ - enCore Energy Corp. (NASDAQ: EU) (TSXV: EU) (the "Company" or "enCore"), America's Clean Energy Company TM , today shared positive results from initial exploration drilling tests conducted on its Alta Mesa East ("AME") property, which is immediately adjacent to the Alta Mesa wellfields and extraction operations. Exploratory drilling tests are designed to outline mineralization, which will guide the Company's efforts in permitting and expanding In-Situ Recovery ("ISR") operations into the AME from the existing Alta Mesa operations. These initial results have confirmed uranium mineralization extending more than 3,700 feet to the east from the nearest wellfield.  William M. Sheriff, Executive Chairman of enCore, said, "Our initial drill results from Alta Mesa East have reconfirmed our expectations of encouraging uranium grades across all major mineralized sand units known to exist at Alta Mesa.

Uranium extraction efforts from these sand units at the Alta Mesa wellfields have generated solid results, including current operations at wellfield 7. An aggressive drill program is underway with additional results pending." To view the Alta Mesa Wellfield maps, please visit: Alta Mesa Maps Alta Mesa East Project Drilling Update Exploration drilling at enCore's 5,900-acre AME Project is well underway and continues to advance with 6 drilling rigs in operation. The AME Project targets the continuation of productive roll fronts from Alta Mesa wellfields 1, 3, 3EXT, 4, 5B, and 7.

Overall, exploration efforts are focused on mineralization within the designated B sands, Middle C sands (MCL & MCU in the table), Lower C sands (LCL & LCU in the table), and potentially the D sands in the northeast areas. Initial exploration drilling is typically conducted on 400 and 500 foot centers with closer offsets in mineralized a