Cameco Resumes Full Production at Key Lake and McArthur River Operations

2026-05-28 10:13:42 ET

Uranium major Cameco (TSX:CCO,NYSE:CCJ) has resumed full production at its Key Lake mill and McArthur River mine in northern Saskatchewan following a supply route disruption caused by regional flooding .

The logistics disruption stemmed from the partial collapse of the Smoothstone River Bridge due to high water levels.

While Cameco’s mining and milling facilities were not directly inundated by floodwaters, the bridge serves as the primary transport route for hauling critical operating supplies to both operations. Deliveries were further impeded by weight and traffic restrictions imposed on an alternative secondary roadway.

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