Port Hope Conversion Facility Licence Renewal

Cameco’s Port Hope Conversion Facility (PHCF) holds a Class 1B Fuel Facility Operating Licence (FFOL) issued by Canada’s nuclear regulator, the Canadian Nuclear Safety Commission (CNSC). The current licence FFOL-3631.00/2027, issued on February 28, 2017, is valid until February 28, 2027.

On September 29, 2025, Cameco applied to the CNSC to renew its licence for a period of 20 years. Cameco is not requesting any changes to the currently licensed activities.

The PHCF has a long history of safe operations and has maintained strong operational and safety performance throughout the current licence period. The authorized activities are well understood, supported by established programs, experienced personnel, and a strong safety culture. Throughout this period:

• PHCF’s operations have maintained radiation exposures well below regulatory dose limits.
• Environmental emissions were controlled to levels at a fraction of the release limits.
• 2024 public opinion survey results indicate that 91% of respondents support the continuation of Cameco's operations in Port Hope. Long-term tracking consistently shows that the large majority of survey respondents are supportive of Cameco continuing its operations in Port Hope.

If you have any questions about the licence renewal process, please contact us at 1.905.800.2020 or cameco_ontario@cameco.com.

Why a 20-year licence?

Cameco’s request for a 20-year licence reflects confidence in the strength and maturity of the Canadian Nuclear Safety Commission’s regulatory framework, which continually demonstrates rigorous and effective oversight of nuclear facilities across Canada.

The CNSC’s annual regulatory oversight report process provides the public and Indigenous communities with regular and meaningful opportunities to stay engaged and informed throughout the licence period.

Cameco is committed to providing regular, transparent and honest communication with stakeholders, Indigenous communities and the public. This commitment is demonstrated through our activities such as newsletters, tours, annual BBQ, community presentations and participation in local events such as the Fall Fair. Cameco also maintains a community website (www.camecofuel.com) and local social media channels.

Longer-term licences are being granted to facilities with demonstrated safe operations and consistent regulatory compliance. A 20-year licence period is appropriate for the PHCF given its long record of safe operations and regulatory compliance.

Mature management programs in place, that protect the health and safety of workers, the public and the environment throughout the proposed 20-year licence term and authorized activities, will continue to be carried out in alignment with the objectives of the licensing basis.

The PHCF’s consistent performance during the current licence period demonstrates our commitment to safety and the protection of people and the environment.