Cameco is 100% owner and operator of Canada's only uranium refining and conversion facilities, located in Ontario. These include the Blind River refinery, the world's largest, where uranium concentrates are processed into high-purity uranium trioxide (UO3), an intermediate product used as feed at the company's Port Hope conversion plants.
The Port Hope facility is one of only three commercial suppliers of uranium hexafluoride (UF6) in the western world. UF6 produced at the plant is delivered to others for enrichment and fabrication into the fuel pellets used in most nuclear reactors. The Port Hope facility is also the world's only commercial supplier of natural uranium dioxide (UO2) used to manufacture fuel for the Candu reactors.
Cameco also controls additional UF6 capacity through a toll processing agreement with the Springfields plant located in Lancashire, UK.