Phoenix Feasibility Study 2023 slide image

Phoenix Feasibility Study 2023

Environmental, Social, Governance & Indigenous (ESG+I) Fundamental considerations driving Denison's operations Sakitawa Ellen Grap Lodge Powering PEOPLE, PARTNERSHIPS Multiple Indigenous Agreements In Place AND PASSION. Denison Mines www.denisonmines.com Shared Prosperity Agreement with English River First Nation (2) Participation/Funding and/or Exploration Agreements with: Kineepik Métis Local / Pinehouse (3), Ya'thi Néné Lands & Resources Office (4), and Métis Nation Saskatchewan (5) Comprehensive ESG Reporting Designed to address GRI, SASB, TCFD and other global disclosure frameworks Board approved Indigenous Peoples Policy |First-in-sector policy reflecting Denison's commitment to take action towards advancing reconciliation with Indigenous peoples in Canada (1) Strong EHS&S Culture & Results Zero lost time injuries across all operations and no significant environmental events for 2022(8) | | Top 125 in Canada Leading Governance Practices & Disclosure Denison recognized by Globe & Mail "Board Games" as top | uranium development | company for corporate governance practices & disclosure in its assessment of leading companies and trusts included in Canada's | benchmark S&P/TSX | Composite Index(6, 7) Authentic Social Programs Denison's community/ social investment program targets community-based initiatives Lenison PHOTO: Highlights of the Elders of Sakitawak's market garden in Ile a la Crosse, a community-based initiative sponsored by Denison. LINKS: Denison's ESG Report ERFN SPA Signing Video NOTES: (1) See news release dated December 2, 2021. (2) See news release dated September 27, 2023. (3) See news release dated June 23, 2022. (4) See news release dated October 20, 2022. (5) See MD&A for the period ended Dec. 31, 2022 (6) For more information: https://www.theglobeandmail. com/business/careers/manag ement/board-games/article- the-globe-and-mails- comprehensive-ranking-of- canadas-corporate-boards-2/ (7) See Denison's news release dated March 15, 2021. (8) See Denison's 2022 Annual Information Form for additional details. 7
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