McClean Lake & Cigar Lake: High-Grade Uranium Without Dilution
The McClean Lake mill, 850 km northeast of Saskatoon in northern Saskatchewan, is Orano Canada’s flagship operation. It is a unique uranium milling facility that allows for the processing of undiluted, high-grade uranium ore, which
is supplied by the Cigar Lake mine operated by Cameco Corporation, 80 km away (average grade 15% U3O8, the highest in the world). At the mine, ore is extracted from an orebody two kilometres long and 450 m deep, mixed into a slurry, and trucked to
the mill site.
The mill can produce 24 million pounds of yellowcake (uranium concentrate) annually, and in 2022 achieved total production of 18 million pounds U3O8.