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Inventories
12 Months Ended
Dec. 31, 2019
Classes Of Inventories [Abstract]  
Inventories

7. Inventories

20192018
Uranium
Concentrate$204,123$335,276
Broken ore51,09451,545
255,217386,821
Fuel services62,70175,541
Other2,8525,433
Total$320,770$467,795

Cameco expensed $1,398,000,000 of inventory as cost of sales during 2019 (2018 - $1,501,000,000). Included in cost of sales for the year ended December 31, 2018 is a $29,296,000 net write-down to reflect net realizable value. No write-down was recorded in the current year.