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nuclear•chain

Cameco Corporation

Cameco Corporation is a CAN company active in the nuclear fuel chain as miner, converter, fabricator.

The largest Western uranium producer, and one of very few companies present at three separate stages of the chain: it mines in northern Saskatchewan, converts to UF6 at Port Hope, and fabricates CANDU fuel. Since 2023 it also owns 49% of Westinghouse alongside Brookfield, which extends its reach to reactor supply and LWR fuel. Its McArthur River and Cigar Lake deposits are the highest-grade uranium orebodies on earth by a wide margin.

Company
HeadquartersSaskatoon, Saskatchewan, Canada
Founded1988
Ownershiplisted
ListingNYSE: CCJ
Roles in the chainminer, converter, fabricator

Position in the chain

Mining Conversion Enrichment Fabrication HALEU Reprocessing

Downstream

Output from this company feeds the stages below it in the chain, and ultimately 419 operating reactors across these types.

Reactor typeOperating units
Pressurised water reactor 311
Boiling water reactor 45
Pressurised heavy water reactor 44
Gas-cooled reactor 9
Light water graphite reactor 7
Fast reactor 2
High-temperature gas reactor 1

Facilities

FacilityStageCountryCapacity / outputStatus
Port Hope Conversion Facility conversion CAN 12,500tU/yr as UF6 operating
Cameco Fuel Manufacturing, Port Hope fabrication CAN 1,650tHM/yr operating
McArthur River / Key Lake mining CAN 7,808tU/yr operating
Cigar Lake mining CAN 6,501tU/yr operating

What it supplies

ProductForOperating units of that kind
CANDU fuel bundles, natural uranium phwr —

Recorded as capability against a reactor type or model line rather than against named units, because utilities do not publish fuel contracts.

Sources