Cameco Corp
CCJ
Materials
2
exclusion reasons
2 themes
Cameco Corp is screened out under 2 exclusion reasons spanning 2 issue categories.
This page is part of our public exclusion list — a transparency tool that shows which companies we screen out and why. It is not investment advice, and it is not an accusation. It is a statement of values.
Cameco Corporation is the world's largest publicly traded uranium company, deriving its revenue from the mining and sale of uranium fuel for nuclear power generation. Its primary operations include uranium mines in Saskatchewan, Canada, and in-situ recovery facilities in Wyoming and Nebraska, United States.
The company has accumulated $1.145 million in penalties across seven environmental violation records, according to ViolationTracker. This includes specific incidents such as a 2020 determination by the Nuclear Regulatory Commission for violations at its Smith Ranch operation in Wyoming, which involved failures to properly post radiation areas and control access to them. Further reporting links Canadian mining companies, including Cameco, to broader patterns of human rights abuses and environmental damage associated with global extractive industry expansion.
Cameco Corp is a global uranium mining and processing company, operating large-scale mines and mills in Canada, the United States, and Kazakhstan. The company’s core business involves extracting and processing uranium ore, which generates significant volumes of radioactive and chemically toxic waste rock, tailings, and effluent.
Historical operations have been linked to documented environmental contamination. During the mid-20th century uranium mining boom in the Saskatchewan region where Cameco now operates, hundreds of miners contracted lung cancer from prolonged exposure to radioactive dust and radon gas, a legacy of inadequate worker and environmental protections at the time. The company’s current milling processes, which involve crushing ore and using chemical leaching to extract uranium, continue to produce fine particulate dust and liquid effluents containing heavy metals and radionuclides. Community concerns persist regarding the potential for toxic pollution from processing plants and the long-term environmental security of massive above-ground tailings management facilities, which require perpetual monitoring and water treatment.
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