Cameco Customers

We sell uranium and fuel services to utility customers around the world. Our core strengths are an extensive portfolio of contracts and the long-term, trusting relationships we have with our customers.

Uranium Customers

  America Europe Asia
Uranium Customers 41 20 39



39 nuclear utilities worldwide

  • 41% of volume to Americas (US, Canada, Latin America)
  • 39% of volume to Asia
  • 20% of volume to Europe
  • five largest customers account for 55% of commitments


~150 million pounds of U3O8 contracted

Conversion Customers

  America Europe Asia
Conversion Customers 33 41 26

Conversion – UF6


31 nuclear utilities worldwide

  • 33% of volume to Americas (US, Canada, Latin America)
  • 26% of volume to Asia
  • 41% of volume to Europe
  • five largest customers account for 59% of commitments


over 40 million kilograms as UF6 conversion

Conversion – UO2

Cameco is a leading supplier of uranium dioxide (UO2) used by the Canadian operators of CANDU heavy water reactors.

Conversion – UO3

Cameco provides intermediate fuel services product, uranium trioxide (UO3), through our Blind River refinery – the world's largest uranium refinery.

Fuel Manufacturing

Cameco is one of two nuclear fuel manufacturers in Canada, and the largest Canadian-based supplier of reactor components to CANDU operators in Canada.


  • utilities operating CANDU reactors


  • finished fuel for CANDU reactors
  • specialty alloy products for various CANDU reactor applications


  • 1.2 million KgU as UO2 finished fuel bundles per year

For more information on Cameco’s marketing activities see our 2017 Q4 MD&A.