Question · Q4 2025
Ralph Profiti asked about the technical risks highlighted in the MD&A for McArthur River Zone One and Zone Four, seeking clarification on whether these are transient or multi-year mine development risks. He also questioned at what point Cameco might face stress in backfilling its contract book and growing demand over the next 10-15 years.
Answer
Grant Isaac, President and Chief Operating Officer, clarified that the technical risks (e.g., clay zones) led to the September 2025 delays, but they haven't increased; Cameco's response is measured with the market, and acceleration would be driven by stronger demand and price discovery. Regarding production backfill, Mr. Isaac viewed the market as an "incredible opportunity" due to historic uncovered requirements and declining global supply. He expressed confidence that demand will come, allowing ample time to prepare existing Tier One assets, restart Tier Twos, and consider expansions, all while maintaining discipline to avoid oversupply.
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