ENVIRONMENT, HEALTH & SAFETY POLICY

DENISON MINES CORP.
ENVIRONMENT, HEALTH AND SAFETY POLICY

Denison is committed to the operation of its facilities in a manner that puts the safety of its workers, its community and the environment above all else. Whenever issues of safety conflict with other corporate objectives, safety shall be the first consideration. Accordingly, Denison is committed to the following principles:

• it will build and operate its facilities in compliance with all applicable laws and regulations of the jurisdictions in which it operates; and
• it will adopt and adhere to standards that are protective of both human health and the environment at all of its facilities.
• [it will keep health and safety hazards, including radiation exposures, and environmental risks, as low as reasonably achievable]

In support of these principles, Denison will:

• establish and maintain clearly defined safety and environmental management programs to guide its operations in accordance with the foregoing principles;
• ensure that it has adequate resources and appropriate staffing in order to implement its safety and environmental programs;
• ensure that its employees are properly trained in the implementation of its safety and environmental programs and in compliance with applicable laws and regulations;
• institute regular monitoring programs to identify risks to its workers, the public or the environment and to ensure compliance with regulatory requirements;
• [set objectives and targets in an effort to continually improve its health, safety and environmental management and performance;]
• identify and reduce the potential for accidents and emergency situations, and implement emergency response plans that will protect the health and safety of its workers, the public and the environment;
• conduct regular audits to assess and ensure compliance with this policy;
• develop processes for preventing non-conformance with this policy and adopting corrective actions; and
• require regular reporting to its Board of Directors regarding compliance with this policy.

This policy has been adopted by and its implementation is the responsibility of the Board of Directors of Denison. The Board of Directors holds all levels of management and all employees responsible for compliance with this policy within their areas of responsibility.