Cigar Lake

  • Cigar Lake is the world's highest grade uranium mine and is located in northern Saskatchewan, Canada.
  • Since commissioning in 2014, the site has produced a total of 46.9 million pounds (100% basis).  It began commercial operation in May 2015.
  • As the operator, Cameco developed an innovative jet-boring technique specifically for this challenging deposit.
  • Cigar Lake's ore is processed 70 km northeast, at the McClean Lake mill, operated by AREVA Resources.
Operation(As of December 31, 2017)
50% Cameco ownership
532 Cigar Lake Employees
Production(As of December 31, 2017)
Cigar Lake Average % Grade of U3O8 of 14.91
Licenced to 2021
Cigar Lake 2017 Production Trend

2018 Q2 Update


Total packaged production from Cigar Lake was 16% higher in the second quarter and 6% higher for the first six months compared to the same periods last year. Production is expected to be lower in the third quarter as the site enters an extended summer shutdown period starting in July, which is expected to increase quarterly unit production costs. Production is expected to restart at the end of August and remains on track to meet forecast for the year.

Cigar Lake Production

Cameco's Share (million lbs)

3 months ended
June 30
  Six months ended
June 30
2018 2017 Change 2018 2017 Change 2018 Plan
2.9 2.5 16% 5.1 4.8 6% 9.0

See full Quarterly Report

Environment & Safety

Worker safety, protection of the environment and proper decommissioning after mining is completed, are of the utmost importance to Cameco.

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Reserves & Resources

Our mineral reserves and resources are the foundation of our company and fundamental to our success.

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Caution about forward-looking information

This page may contain forward-looking information that is based upon the assumptions and subject to the material risks discussed on page 2 of Cameco's most recent Quarterly MD&A.