Canada built its nuclear industry to avoid foreign fuel. by relying on imported enriched uranium, Canada would give foreign governments the ability to disrupt its nuclear fuel supply during a political dispute. The American-Japanese-designed light water reactor uses low-enriched uranium, unlike Canada’s Candus, which use fuel made domestically from natural uranium without enrichment. Cameco, the Saskatoon-based uranium mining and nuclear fuel company, will mine uranium ore in Saskatchewan and convert it in Port Hope, Ont., before it is enriched in the United States. The federal government says foreign enrichment doesn’t present a significant supply risk, especially in the short to medium-term.