Millennium
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The Cree Extension-Millennium project is a Cameco-operated joint venture located in the southeastern portion of the Athabasca Basin, approximately 35 km north of the Key Lake operation.
The project includes the Millennium deposit which was discovered in 2000. We own 69.9% of the project.
| Location | Saskatchewan, Canada |
|---|---|
| Cameco's share | 69.9% |
| Mine type | Underground |
| Estimated resources (Cameco's share) | 53.0 million lbs (indicated), average grade U3O8: 2.39% 20.2 million lbs (inferred), average grade U3O8: 3.19% |
| Product | Uranium concentrates |
| Discovered | 2000 |
| Other possible features |
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Development Progress
We believe that we have some of the best undeveloped uranium projects in the world. However, our current focus is on producing from our tier-one uranium assets at a pace aligned with our contract portfolio and market opportunities.
No work is planned at Millennium in 2026.
Environmental Assessment
A number of studies have been completed to evaluate the potential effects during the construction, operation, and decommissioning of the Millennium project.
Map
February 13, 2026
November 5, 2025
July 31, 2025
June 3, 2025
May 1, 2025