Bar chart: Cameco: Uranium Production by Mine (Quarterly) for Cameco. Q1 2023-Q3 2025, values in million pounds U3O8 (Cameco attributable share). In Q3 2025: McArthur River + Key Lake (70%) 3.1, Cigar Lake (50%) 2.4, Inkai JV (40%; Kazakh ISR) 1, US ISR (Crow Butte + Smith Ranch; restarted 2024) 0.4.