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Joint operations
 12 Months Ended
Dec. 31, 2024
Joint operations [Abstract]  
Joint operations
30.
 
Joint operations
Cameco conducts a portion of its exploration, development, mining and milling activities through joint operations. Operations
are governed by agreements that provide for joint control of the strategic operating, investing and financing activities among
the partners. These agreements were considered in the determination of joint control. Cameco’s significant Canadian uranium
joint operation interests are McArthur River, Key Lake and Cigar Lake. The Canadian uranium joint operations allocate
uranium production to each joint operation participant and the joint operation participant derives revenue directly from the sale
of such product. Mining and milling expenses incurred by joint operations are included in the cost of inventory.
Cameco reflects its proportionate interest in these assets and liabilities as follows:
Principal place
 
of business
Ownership
2024
2023
Total assets
McArthur River
Canada
69.81%
$
963,183
$
1,048,746
Key Lake
Canada
83.33%
485,635
504,508
Cigar Lake
Canada
54.55%
1,010,646
1,158,583
$
2,459,464
$
2,711,837
Total liabilities
McArthur River
69.81%
$
53,373
$
50,199
Key Lake
83.33%
248,107
244,480
Cigar Lake
54.55%
57,125
48,967
$
358,605
$
343,646