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 the world’s most technologically advanced uranium mill 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 2021 achieved total production of 12.3 million pounds U3O8.