Cameco's Cigar Lake mine halts output on mill acid plant issue
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Cigar Lake Operation Update
July 1, 2026 6:30 AM EDTAll amounts in Canadian dollars unless specified otherwise.
SASKATOON, Saskatchewan, Canada--(BUSINESS WIRE)-- Cameco (TSX: CCO; NYSE: CCJ) today announced our Cigar Lake mine in northern Saskatchewan has temporarily suspended operations due to challenges at Oranos McClean Lake mill, where Cigar Lake ore is processed.
Oranos McClean Lake mill has encountered operational challenges with its sulfuric acid plant that caused it to shut down in order to repair the issue. Orano is currently working to bring the acid plant back online and is assessing options to... More
