Ur-Energy Updates Lost Creek Property Technical Report Summary Estimating an Extended Mine Life and Increase in Net Cash Flow

CASPER, WY / ACCESS Newswire / March 10, 2026 / Ur-Energy Inc. (NYSE American:URG)(TSX:URE) (the "Company" or "Ur-Energy"), a U.S. producer of uranium, is pleased to announce the filing of an updated S-K 1300 Initial Assessment Technical Report Summary for its Lost Creek Property, dated March 9, 2026, with an effective date of December 31, 2025 (the "Lost Creek Report"), as an exhibit to the Company's Annual Report on Form 10-K filed on March 10, 2026, with the U.S. Securities and Exchange Commission on EDGAR at www.sec.gov/edgar.shtml. The Lost Creek Report was prepared by Qualified Person, Western Water Consultants, Inc., d/b/a WWC Engineering ("WWC").