TORONTO, July 13, 2026 /PRNewswire/ - IsoEnergy Ltd. ("IsoEnergy", or the "Company") (NYSE American: ISOU) (TSX: ISO) is pleased to announce the release of its Sustainability Report for the year ended December 31, 2025 (the "Report"). The Report highlights the Company's continued progress in integrating environmental stewardship, Indigenous and community partnerships, workforce development, and strong governance practices across its growing uranium portfolio in Canada, the U.S. and Australia. As IsoEnergy advances from exploration toward potential production and expands its operational footprint, the Report demonstrates the Company's commitment to responsible growth and long-term value creation. The full report is available at https://www.isoenergy.ca/sustainability/.