Exhibit 99.1 NEWS RELEASE NASDAQ:EU TSXV:EU May 12, 2025 www.encoreuranium.com Total Costs of U3O8 Sold in Q1-2025 | | Pounds U3O8 | Cost in '000 | | | Cost/pound | | --- | --- | --- | --- | --- | --- | | Total Cost of all Pounds | | 290,000 $18,262 | |$ | 62.97 | | 1Purchased | | 216,289 $14,900 | |$ | 68.89 | | Extracted total cost | | 73,711 $| 3,362 |$ | 45.62 | | Extracted | 2cash cost | $| 2,304 |$ | 31.26 | | | 3non-cash cost | $| 1,058 |$ | 14.36 | Inventory Remaining on Hand (end Q1-2025) ...