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SafetyWe manage the safety of our workers through programs, systems, and standards, with our Safety, Health, Environment and Quality (SHEQ) Policy providing overarching guidance. There are many aspects of the management system that contribute to a safe work environment, a few examples include:Risk assessments help identify issues and determine the appropriate controls; the corrective action process verifies that incidents and near misses are reported, tracked, investigated and shared with colleagues; and emergency preparedness and planning prepare us to respond to serious incidents.We have developed 12 corporate safety standards to help protect our workers from our most common hazards. Some standards guide our general safety practices, such as our job hazard analysis and our job task observation, and other standards deal with specific hazardous situations (similar to other companies’ life saving rules): such as fall protection, confined space entry, rigging and hoisting, and control of hazardous energy (also referred to as lockout/tagout).Routine audits are conducted to monitor compliance with regulations and our own requirements. These and other aspects of the management system are routinely examined to verify that they continue to be effective at keeping our workers safe.Radiation ProtectionRadiation risks are effectively managed at the Port Hope conversion facility through a formal radiation protection program and dedicated personnel who ensure that doses to workers are as low as reasonably achievable. The program ensures that radiation protection is considered in the physical design of all facilities and operating procedures. It also provides for systematic monitoring of radiation in work areas and tracking the exposures of individual workers using a combination of monitoring devices and health testing. Radiation exposures at the facility are far below regulatory limits.Environmental ProtectionAt Cameco, protection of the environment is one of our highest corporate priorities during all stages of our activities, from exploration through development, operations, decommissioning, and reclamation.We monitor our performance by tracking corporate and site-specific key performance indicators, conducting environmental monitoring programs, and regularly auditing our adherence to the requirements of these programs We use the information from all of our programs to help us to identify opportunities to improve.Environmental management systemWe have a ISO 14001-certified environmental management system used across our operating sites, which is supported by a corporate Environmental Management Program that outlines the operating requirements sites must meet. Our environmental management system encourages and promotes continuous adaptation of our practices based on new information and technologies.Environmental risk assessmentsWe complete environmental risk assessments to systematically identify, quantify, and to characterize the potential risks to the environment, workers, and the public. We use our environmental risk assessments to inform our decisions and actions. Additionally, we complete an iterative process, where required, to verify that our proposed measures to protect the environment and the public are effective. We review or update the assessments every five years, incorporating results from our environmental monitoring programs and other scientific advances.Corrective action processWe have a corrective action process in place to systematically investigate and address the causes of non-conformance to regulatory requirements or internal standards. The process includes classifying the non-conformance, assigning the appropriate level of investigation (dependent on incident significance), and tracking the recommended corrective actions to prevent and mitigate similar occurrences.AuditsTo support our culture of continuous improvement, our processes and operations undergo regular audits, including:Our environmental management system is audited by a third-party every three years as a requirement to maintain our ISO 14001 certification.Our SHEQ team conducts an internal audit of our SHEQ programs on a three-year cycle. The total audit scope is split in half and executed on a rotating basis. This means that all our sites undergo at least two audits to cover all aspects of our SHEQ programs within every three-year period. The audit follows the ISO 19001 process and encompasses our environmental and safety programs.We also maintain and implement an internal audit program at our corporate office. Results and recommendations from this systematic and documented process are presented to senior management, who are responsible for implementing them and correcting any deficiencies. The internal audit group reports to the audit and finance committee of the board.Environmental Incidents and Other Events​​Environmental incidents and other events are reported to regulatory agencies as required by federal and provincial regulations. This includes releases to the environment reportable to Ontario Ministry of Environment's Spills Action Centre.If you have questions about any of the items posted here, please contact us.Latest incident or event:Posting DateMarch 20, 2026 Incident DateMarch 19 , 2026IncidentEmergency Response Team (ERT) ActivationDetailsSmoke was detected in the Powerhouse at the Port Hope Conversion Facility. Upon investigation, the source of the smoke was identified as an air dryer unit. The air dryer was immediately shut down, and the Emergency Response Team (ERT) was activated.The ERT investigated and confirmed that there was no fire present. There was no risk to the health and safety of the public or the environment.Corrective ActionThe air dryer will remain shut down while an investigation is conducted to determine the cause of the smoke. The Canadian Nuclear Safety Commission has been notified. Cameco Environmental Effect Ratingno measurable impact to the environment1Past reportingPosting DateMarch 20, 2026 Incident DateMarch 19 , 2026IncidentEmergency Response Team (ERT) ActivationDetailsSmoke was detected in the Powerhouse at the Port Hope Conversion Facility. Upon investigation, the source of the smoke was identified as an air dryer unit. The air dryer was immediately shut down, and the Emergency Response Team (ERT) was activated.The ERT investigated and confirmed that there was no fire present. There was no risk to the health and safety of the public or the environment.Corrective ActionThe air dryer will remain shut down while an investigation is conducted to determine the cause of the smoke. The Canadian Nuclear Safety Commission has been notified. Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateJanuary 19, 2026Incident DateJanuary 15, 2026 Incident Transportation IncidentDetailsA tractor trailer carrying two 48Y cylinders of uranium hexafluoride (UF6) was involved in a minor incident on Highway 401 eastbound, just past the Alexandria Bay off-ramp. While travelling eastbound, the traffic ahead came to a stop; the driver slowed to a stop and was rear-ended. There was no damage to the 48Y cylinders, however the rear axle was damaged. The tractor trailer remained roadworthy and there was no damage to the cylinders of UF6. The vehicle continued onto its intended destination. There was no health or safety risk posed to the public or the environment. Corrective ActionCameco notified the Canadian Nuclear Safety Commission.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateJanuary 12, 2026Incident DateJanuary 5, 2026Incident Transportation IncidentDetailsA tractor trailer carrying two 48Y cylinders of uranium hexafluoride (UF6) was involved in a minor incident on Highway 25 in Montreal, Quebec. A third-party vehicle merged into the side of the tractor trailer carrying the cylinders. The tractor trailer remained roadworthy and there was no damage to the cylinders of UF6. The vehicle continued onto its intended destination. There was no health or safety risk posed to the public or the environment.Corrective ActionCameco notified the Canadian Nuclear Safety Commission.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateOct. 2, 2025Incident DateSept. 24, 2025IncidentEnvironmental Release and ERT ActivationDetailsThere was an unplanned release from the liquid dropline in the UF6 plant. Process smoke detectors triggered an HVAC shutdown and emergency ventilation was automatically activated. Safety systems worked effectively and as intended.There was no health or safety risk posed to the public or the environment.Corrective ActionImmediate action was taken to safely stop the release. A sucker hose was deployed in the area for fume collection. Cameco activated the Emergency Response Team and completed a census of the UF6 plant.The Canadian Nuclear Safety Commission (CNSC) has been notified. Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateAugust 26, 2025 Incident DateAugust 20, 2025IncidentPressure Boundary Failure – UF6 PlantDetailsA hydrofluoric acid (HF) line in the UF6 plant failed during an attempt to clear a blockage using heat tape, in accordance with established procedures. HF levels of 10 ppm and 6 ppm were detected by monitoring equipment.Corrective ActionThe affected area was shut down, and a plant census was conducted to confirm personnel safety. Heating of HF lines has been paused pending a full investigation. The Canadian Nuclear Safety Commission (CNSC) has been notified.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateJuly 22, 2025Incident DateJuly 20, 2025IncidentEmergency Response Team (ERT) Activation  DetailsSecurity received an alarm indicating the presence of smoke in an electrical room of the UF6 plant. Upon investigation by the ERT, it was determined that the source of the smoke was an overheating transformer. No personnel were in the area at the time.Corrective ActionThe transformer was taken off-line. A maintenance notification has been submitted to initiate the rebuild or replacement of the transformer. The Canadian Nuclear Safety Commission has been notified. Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateApril 8, 2025Incident DateApril 3, 2025IncidentTransportation Incident DetailsGlobal Nuclear Fuel – Americas, LLC informed Cameco that they had received six 30B cylinders packaged in UX-30 protective shipping packages with valve protectors. The packaging requirements for the UX-30 specifies that the valve protector should be removed from the 30B cylinder prior to shipping.  Corrective ActionThis matter will be investigated in accordance with Cameco’s corrective action process. Cameco notified the Canadian Nuclear Safety Commission transport section. Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateMarch 5, 2025Incident DateFeb. 27, 2025IncidentTransportation IncidentDetailsA tractor trailer carrying one 48Y cylinder of uranium hexafluoride (UF6) was involved in a minor incident on Highway 402 near Sarnia, Ontario. The tractor trailer was travelling westbound on Highway 402 when it came to a stop behind a stationary vehicle. The stopped vehicle proceeded to back into the tractor trailer. There was no damage to the tractor trailer, nor the cylinder of UF6 and the vehicle continued onto its intended destination. There was no health or safety risk posed to the public or the environment.Corrective ActionCameco notified the Canadian Nuclear Safety Commission transport section.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateOctober 24, 2024Incident DateOctober 23, 2024IncidentERT ActivationDetailsA small release of Uranium Hexafluoride (UF6) occurred from a line on the third floor of the UF6 plant. The plant was not in operation at the time. There was no health or safety risk posed to the public or the environment.Corrective ActionThe release was successfully contained and an investigation to determine the cause has been initiated.When the release was discovered, the Emergency Response Team (ERT) was activated for standby support and performed air monitoring outside of the release area. Air monitoring was also conducted outside of the plant with nothing detected.The Canadian Nuclear Safety Commission and the Ministry of Environment, Conservation and Parks have been notified.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateMay 24, 2024Incident DateMay 14-16, 2024IncidentEnvironmental Limit ExceedanceDetailsThe Marsh Street high volume air sampler recorded a results of 148 µg TSP/m3, 121 µg TSP/m3 and 217 µg TSP/m3 suspended particulate (TSP) for the period of May 14-16, 2024. This result is above the regulatory dust criteria of 120 µg/m3 set by Environment and Climate Change Canada and the Ministry of Environment, Conservation and Parks.There was no health or safety risk posed to the public, workers, or the environment.Corrective ActionThe elevated dust results were localized and caused by sections of roadway along Marsh Street that were being prepared for paving (May 14), and asphalt paving (May 15), and street sweeping (May 16).The Canadian Nuclear Safety Commission and the Ministry of Environment, Conservation and Parks have been notified.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateApril 23, 2024Incident DateApril 18, 2024IncidentReportable SpillDetailsA vacuum truck was removing water from a storage tank containing accumulated rainwater from a floor area of a recently demolished building when the hatch of the vacuum truck leaked approximately 200L of water to the ground. Efforts were made to contain the leaked water however a small portion of that water, estimated up to 10 litres at an approximate uranium concentration of 120 µg/L, drained into the restricted harbour area where remediation activities are taking place.There was no health or safety risk posed to the public, workers, or the environment.Corrective ActionA tray was placed under the leak, a second vacuum truck emptied the truck that was leaking, sandbags were placed at the nearby catch basin perimeter, and pooling water was recovered. The catch basin was pumped out for any remaining water that could be removed.The Canadian Nuclear Safety Commission and the Ministry of Environment, Conservation and Parks have been notified.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateApril 9, 2024Incident DateApril 9, 2024IncidentEmergency Transport to External Medical FacilityDetailsA contractor sustained injuries while working at Cameco’s Dorset Street warehouse after falling from a height. The individual is in stable condition and was transported to a Toronto hospital via air ambulance.There was no health or safety risk posed to the public or the environment.There was no health or safety risk posed to the public, workers, or the environment.Corrective ActionNorthumberland Paramedics and Port Hope Police attended the location and paramedics provided medical attention. The individual was transported to a Toronto hospital via air ambulance.Cameco notified the Municipality of Port Hope, Canadian Nuclear Safety Commission.All work at the Dorset Street warehouse location has been halted while the incident is investigated.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateApril 8, 2024Incident DateApril 4, 2024IncidentTransportation IncidentDetailsA transport carrying one cylinder of uranium material was involved in a minor traffic accident on the 401 westbound between Mavis Road and Creditview Road. Traffic had slowed down and came to an abrupt stop, resulting in the transport rearending another truck.There was no damage to the cylinder and only minor damage to the front of the truck.There was no health or safety risk posed to the public, workers or the environment.Corrective ActionA new transport truck and driver carried on with the shipment.Cameco notified the Canadian Nuclear Safety Commission.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateJanuary 22, 2024Incident DateJanuary 19-20, 2024IncidentEnvironmental Limit ExceedanceDetailsThe Marsh Street high volume air sampler recorded a result of 171 µg TSP/m3 total suspended particulate (TSP) for the period of January 19-20, 2024. This result is above the regulatory dust criteria of 120 µg/m3 set by Environment and Climate Change Canada and the Ministry of Environment, Conservation and Parks.There was no health or safety risk posed to the public, workers or the environment.Corrective ActionWatermain construction work is occurring on Marsh Street and has resulted in unpaved sections of road. It is believed that the unpaved road and traffic levels are contributing to the elevated dust levels at the Marsh Street Hi-Vol. The Canadian Nuclear Safety Commission and the Ministry of Environment, Conservation and Parks have been notified.Cameco Environmental Effect Ratingno measurable impact to the environment1Cameco Environmental Effect RatingLevel 1 - no measurable impact to the environmentLevel 2 - negligible impactLevel 3 - short-term, seasonal impactLevel 4 - mortality of some species, but not affecting ecosystem functionLevel 5 - impairment of ecosystem functionN/A - not applicableNotes1 Includes all releases to the environment reportable to Ontario Ministry of Environment's Spills Action Centre and other significant events.Waste ManagementSolid wastes contaminated by uranium are reprocessed, recycled and re-used to the extent possible. Waste materials that cannot be reprocessed, recycled or re-used are safely stored on site until appropriate disposal options are available.Wastes generated at the facility are segregated at the point of generation into contaminated and non-contaminated. Non-contaminated waste is either recycled or transferred to a suitable facility. Contaminated waste is stored in appropriate containers pending assessment of recycling or disposal options.DecommissioningDetailed plans and financial guarantees are in place to restore the conversion facility site to public use once the facility reaches the end of its productive life.Environmental AssessmentAll new significant changes to existing operations are subject to environmental assessments to identify potential effects on the environment.Regulatory OversightThe Port Hope conversion facility is licensed and regulated by the Canadian Nuclear Safety Commission (CNSC). The operation is also subject to other federal and provincial regulations for the protection of people and the environment, including by Environment Canada and Ontario’s Ministry of the Environment. Federal and provincial regulators conduct regular site inspections and audits to verify that people and the environment are protected. Sustainability at CamecoWhen measuring the sustainability and ethical impact of a company, environmental, social and governance (ESG) are key factors considered by the public and investors. Sustainability and ESG matters have been an important focus at Cameco for many years and we have a strong performance record.Learn more

Since 1990, Blind River has received Cameco's top award for safety performance, the Mary-Jean Mitchell Green Award, more times than any other Cameco facility.SafetyWe manage the safety of our workers through programs, systems, and standards, with our Safety, Health, Environment and Quality (SHEQ) Policy providing overarching guidance. There are many aspects of the management system that contribute to a safe work environment, a few examples include:Risk assessments help identify issues and determine the appropriate controls; the corrective action process verifies that incidents and near misses are reported, tracked, investigated and shared with colleagues; and emergency preparedness and planning prepare us to respond to serious incidents.We have developed 12 corporate safety standards to help protect our workers from our most common hazards. Some standards guide our general safety practices, such as our job hazard analysis and our job task observation, and other standards deal with specific hazardous situations (similar to other companies’ life saving rules): such as fall protection, confined space entry, rigging and hoisting, and control of hazardous energy (also referred to as lockout/tagout).Routine audits are conducted to monitor compliance with regulations and our own requirements. These and other aspects of the management system are routinely examined to verify that they continue to be effective at keeping our workers safe.Radiation ProtectionRadiation risks are effectively managed at Blind River through a formal radiation protection program and dedicated personnel who ensure that workers are safe. The program ensures that radiation protection is considered in the physical design of all facilities and operating procedures. It also provides for systematic monitoring of radiation in work areas and tracking the exposures of individual workers using a combination of monitoring devices and health testing. Radiation exposures at Blind River are far below regulatory limits.Environmental ProtectionAt Cameco, protection of the environment is one of our highest corporate priorities during all stages of our activities, from exploration through development, operations, decommissioning, and reclamation.We monitor our performance by tracking corporate and site-specific key performance indicators, conducting environmental monitoring programs, and regularly auditing our adherence to the requirements of these programs We use the information from all of our programs to help us to identify opportunities to improve.Environmental management systemWe have a ISO 14001-certified environmental management system used across our operating sites, which is supported by a corporate Environmental Management Program that outlines the operating requirements sites must meet. Our environmental management system encourages and promotes continuous adaptation of our practices based on new information and technologies.Environmental risk assessmentsWe complete environmental risk assessments to systematically identify, quantify, and to characterize the potential risks to the environment, workers, and the public. We use our environmental risk assessments to inform our decisions and actions. Additionally, we complete an iterative process, where required, to verify that our proposed measures to protect the environment and the public are effective. We review or update the assessments every five years, incorporating results from our environmental monitoring programs and other scientific advances.Corrective action processWe have a corrective action process in place to systematically investigate and address the causes of non-conformance to regulatory requirements or internal standards. The process includes classifying the non-conformance, assigning the appropriate level of investigation (dependent on incident significance), and tracking the recommended corrective actions to prevent and mitigate similar occurrences.AuditsTo support our culture of continuous improvement, our processes and operations undergo regular audits, including:Our environmental management system is audited by a third-party every three years as a requirement to maintain our ISO 14001 certification.Our SHEQ team conducts an internal audit of our SHEQ programs on a three-year cycle. The total audit scope is split in half and executed on a rotating basis. This means that all our sites undergo at least two audits to cover all aspects of our SHEQ programs within every three-year period. The audit follows the ISO 19001 process and encompasses our environmental and safety programs.We also maintain and implement an internal audit program at our corporate office. Results and recommendations from this systematic and documented process are presented to senior management, who are responsible for implementing them and correcting any deficiencies. The internal audit group reports to the audit and finance committee of the board.Environmental Incidents and Other Events​Environmental incidents and other events are reported to regulatory agencies as required by federal and provincial regulations. This includes releases to the environment reportable to Ontario Ministry of Environment's Spills Action Centre.If you have questions about any of the items posted here, please contact us.Latest incident or event:Posting DateFebruary 18, 2026  Incident DateFebruary 9, 2026IncidentTransportation IncidentDetailsUpon opening a sea container at the Blind River Refinery, an employee identified a small amount of contamination on a drum and a very small amount of loose uranium on the plastic liner. There was no health or safety risk posed to the public or the environment.  Corrective ActionThe contaminated drum was cleaned, and the contaminated liner was disposed of in accordance with applicable regulatory requirements. The sea container was monitored for contamination and met release criteria in accordance with applicable regulatory requirements. Cameco notified the consignor and the Canadian Nuclear Safety Commission. Cameco Environmental Effect Ratingno measurable impact to the environment1Past reportingPosting DateFebruary 18, 2026  Incident DateFebruary 9, 2026IncidentTransportation IncidentDetailsUpon opening a sea container at the Blind River Refinery, an employee identified a small amount of contamination on a drum and a very small amount of loose uranium on the plastic liner. There was no health or safety risk posed to the public or the environment.  Corrective ActionThe contaminated drum was cleaned, and the contaminated liner was disposed of in accordance with applicable regulatory requirements. The sea container was monitored for contamination and met release criteria in accordance with applicable regulatory requirements. Cameco notified the consignor and the Canadian Nuclear Safety Commission. Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateJanuary 12, 2026Incident DateDecember 15, 2025IncidentReportable SpillDetailsA lift truck carrying eight drums of uranium ore concentrate was involved in a single vehicle incident in the yard of the Blind River Refinery. The lift truck contacted an unmarked curb, covered by snow causing the truck to shift. Six of the eight drums were affected resulting in the release of approximately 150 kilograms of uranium ore concentrate onto the paved surface. There was no health or safety risk posed to the driver, public or the environment.Corrective ActionDamaged drums and pallets were contained, and residual material was recovered. The area was radiation monitored until cleanup was completed. Cameco notified the Canadian Nuclear Safety Commission.Cameco Environmental Effect Ratingno measurable impact to the environment2Posting DateOctober. 21, 2025Incident DateSeptember 18, 2025IncidentERT ActivationDetailsA pull station was activated at the Blind River Refinery when a small fire was observed on a piece of equipment in the plant. The fire was extinguished using a nearby extinguisher. The emergency response team was activated. There was no health or safety risk posed to the workers or environment.Corrective ActionThe small fire was extinguished and cleaned up. The Canadian Nuclear Safety Commission was notified.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateMarch 10, 2025Incident DateMarch 6, 2025IncidentTransportation Incident DetailsA tractor trailer carrying three full UO3 tote bins was involved in a minor vehicle incident while travelling south on Highway 12. A passenger vehicle pulled out in front of the tractor trailer causing the driver to swerve into the far lane attempting to avoid a collision but in doing so struck another vehicle with its trailer.There was no damage to the tractor trailer, nor the tote bins so the vehicle continued onto its intended destination.There was no health or safety risk posed to the public or the environment.Corrective ActionThe police were called and attended the scene. As there was no damage to the tractor trailer it continued to its intended destination.Cameco notified the Canadian Nuclear Safety Commission transport section.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateFebruary 28, 2025 Incident DateFebruary 27, 2025 IncidentTransportation Incident DetailsA tractor trailer carrying three full UO3 tote bins was involved in a minor incident when stopped at a red traffic light in Blind River eastbound on Highway 17. A passenger vehicle, unable to stop due to slippery road conditions, rear-ended the tractor trailer. There was no damage to the tractor trailer or the tote bins, so the vehicle was able to safely continue onto its intended destination. There was no health or safety risk posed to the public or the environment. Corrective ActionThe police were called and representatives from Cameco and the trucking company attended the scene. As there was no damage to the tractor trailer continued to its intended destination. Cameco notified the Canadian Nuclear Safety Commission transport section. Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateJanuary 28, 2025Incident DateJanuary 23, 2025IncidentTransport Occurrence (Minor Vehicle Incident)DetailsA tractor trailer carrying a sea container of uranium ore concentrate was involved in a minor incident on Highway 401 east bound near Brockville, Ontario. A passenger vehicle was merging onto Highway 401 when its driver lost control, crossing all lanes and ending up in front of the truck.There was no damage to the trailer nor the sea container, and only minor damage to the front of the truck. The truck was still roadworthy and continued to its intended destination, Cameco’s Blind River Refinery.                             There was no health or safety risk posed to the public or the environment.Corrective ActionThe passenger vehicle was towed from the scene. There was no damage to the trailer or sea container, and only minor damage to the front of the truck. The truck continued to its intended destination. Cameco notified the Canadian Nuclear Safety Commission transport section.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateNovember 29, 2024Incident DateNovember 28, 2024IncidentERT ActivationDetailsOn November 28, a pull station was activated at the Blind River Refinery when a small fire was observed inside of a 5-gallon plastic pail in the plant. The fire was extinguished using a nearby fire extinguisher.Due to the speedy response and action of the emergency response team there was no health or safety risk posed to the workers or the environment.Corrective ActionThe fire was extinguished and cleaned up. The Canadian Nuclear Safety Commission was notified.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateJuly 30, 2024Incident DateJuly 1, 2024IncidentReportable Leak & DischargeDetailsOn June 26, 2024, when the glycol heating systems were drained for maintenance, a mechanical failure occurred. It was observed that the drain valve on number three coil was leaking glycol. A pipe cap was immediately installed to stop the leak. It was assumed the leak had been minimal and there was minimal glycol in the system since the coil had been isolated and drained in 2023 when it had failed.During a maintenance inspection, it was determined that glycol had passed through the sewage plant and was released to Lake Huron on July 1, 2024. A lab investigation estimates 70L of glycol had spilled.  There was no health or safety risk posed to the public, workers, or the environment by this release.Corrective ActionAn investigation is currently underway by Cameco to prevent future occurrences.The Canadian Nuclear Safety Commission, Town of Blind River and the Ministry of Environment, and Conservation and Parks have been notified.Cameco Environmental Effect Ratingno measurable impact to the environment1Posting DateMay 3, 2024Incident DateMay 2, 2024IncidentReportable SpillDetailsOn April 18, a sink hole was observed near two groundwater supply wells for the Blind River Refinery, close to the Mississaugi River. This sinkhole was located adjacent to the golf course, situated west of the parking lot, which is part of the Town property leased from Cameco. As a precautionary measure, we promptly cordoned off the affected area and initiated the process of determining next steps to have the underground well water supply line repaired. Cameco has been closely monitoring the sinkhole and noted no significant changes. On May 2, it was observed that there is now additional groundwater flow from the well line, carrying sediment and overflowing into the river.There was no health or safety risk posed to the public, workers, or the environment by the release of groundwater that had not been used by the refinery.Corrective ActionCameco is working to rectify the situation and has contacted a contractor to install a silt curtain and are in the process of securing hydrovac services. Additionally, Cameco is actively pursuing a separate contractor to repair the well supply line.The Canadian Nuclear Safety Commission, Town of Blind River and the Ministry of Environment, Conservation and Parks have been notified.Cameco Environmental Effect Ratingno measurable impact to the environment1Cameco Environmental Effect RatingLevel 1 - no measurable impact to the environmentLevel 2 - negligible impactLevel 3 - short-term, seasonal impactLevel 4 - mortality of some species, but not affecting ecosystem functionLevel 5 - impairment of ecosystem functionN/A - not applicableNotes1 Includes all releases to the environment reportable to Ontario Ministry of Environment's Spills Action Centre and other significant events.Waste ManagementSolid wastes contaminated by uranium are reprocessed, recycled and re-used to the extent possible. Waste materials that cannot be reprocessed, recycled or re-used are safely stored on site until appropriate disposal options are available.DecommissioningDetailed plans and financial guarantees are in place to restore the Blind River site to public use once the facility reaches the end of its productive life.Environmental AssessmentAll new significant changes to existing operations are subject to environmental assessments to identify potential effects on the environment.Regulatory OversightThe Blind River refinment facility is licensed and regulated by the Canadian Nuclear Safety Commission (CNSC). The operation is also subject to other federal and provincial regulations for the protection of people and the environment, including by Environment Canada and Ontario’s Ministry of the Environment. Federal and provincial regulators conduct regular site inspections and audits to verify that people and the environment are protected. Sustainability at CamecoWhen measuring the sustainability and ethical impact of a company, environmental, social and governance (ESG) are key factors considered by the public and investors. Sustainability and ESG matters have been an important focus at Cameco for many years and we have a strong performance record.Learn More

Our Expertise  Cameco is a pure-play investment in the growing demand for nuclear energy. We provide nuclear fuel and nuclear power products, services, and technologies across the fuel cycle, augmented by our investment in Westinghouse, in support of the generation of carbon-free, reliable, secure, and affordable energy. Backed by more than 35 years of deep industry experience across the nuclear fuel cycle and set within the context of the transitioning market environment, our strategy is to capture full-cycle value through responsible production planning at our tier one brownfield assets, disciplined marketing activity and long-term contracting and prudent financial management.  Growing Demand   A growing focus on electrification and decarbonization; increasing populations; demands from the tech sector such as the generative AI revolution; and concerns about energy security and affordability are driving interest in nuclear power and a transition in the nuclear fuel market.  Increasingly, countries and companies around the globe are recognizing the critical role nuclear power is expected to play in providing carbon-free and secure baseload power, which was reaffirmed at the 30th Conference of Parties (COP30), with the declaration to triple nuclear energy capacity by 2050 now signed by 33 countries.   Supplying the World  Uranium supply and fuel cycle services are facing several risks: mine depletion, a decade of significant underinvestment, declining secondary supplies, global production shortfalls, supply chain and transportation limitations, and geopolitical challenges.  Uncertainty about where nuclear fuel supplies will come from to satisfy growing demand continues to drive long-term contracting activity as risk shifts from producers to utilities.  Focus on Sustainability   We take pride in our strong sustainable performance and we hold ourselves accountable for high quality and credible reporting on sustainability matters. For over 17 years, we have disclosed our performance through an extensive range of environment, safety, social, economic and governance indicators, guided by a suite of policies, programs and practices. We are striving to achieve a 30% absolute reduction in Cameco’s combined Scope 1 and 2 emissions by 2030 from 2015 levels as a milestone towards our longer-term net-zero ambition.  

Performance TableBelow are the metrics that describe our ESG performance for the last three years. The reference column indicates the alignment of that specific metric with the Sustainability Accounting Standards Board (SASB) indicators. In instances where there is no SASB metric suggested, we include the corresponding reference to the metric suggested by the GRI standards. Note that in some cases a single metric aligns with both the SASB and GRI standards but only the SASB reference is noted.All references that start with EM-MM refer to SASB metrics for the Extractives & Minerals Processing Sector – Metals & Mining.We welcome feedback at sustainabledevelopment@cameco.com

2025 Q4 UpdateProductionCigar Lake Production Cameco's Share (million lbs)Three months ended December 31Year ended December 31   20252024202520242025 Plan2026 Plan12.62.510.49.2up to 9.89.5 to 10.01 Production ranges are rounded to the nearest half-million. Total packaged production from Cigar Lake in 2025 was 19.1 million pounds U3O8 (10.4 million pounds our share) compared to 16.9 million pounds U3O8 (9.2 million pounds our share) in 2024. The operation exceeded our forecast of 18 million pounds (100% basis) as a result of higher productivity and our ability to temporarily adjust annual mine production to make up for past annual production shortfalls, as permitted under our CNSC licence and provincial approval.During the year, we:produced from and continued development work in the CLMain orebody in alignment with our long-term production plansuccessfully executed a planned 28-day annual maintenance outagecompleted construction outfitting activities on one production tunnel that will support production targets in 2026substantially progressed physical surface work for development of the CLExt portion of the orebody initial mining zonecrushed concrete aggregate to support backfill operations and development activitiesUnderground developmentUnderground mine development continued in 2025. We completed development of one production crosscut in the western portion of CLMain and continued development of one production crosscut in the eastern portion of CLMain. Development also continued for access to the CLExt orebody on both 480 and 500m level.Planning for the futureIn 2026, we expect to produce 17.5 million to 18 million pounds (100% basis) at Cigar Lake; our share is approximately 9.5 to 10.0 million pounds.In 2026, we plan to continue production and development activities in CLMain, as well as development drifts to access CLExt in alignment with our long-term mine plan. We will start freeze hole drilling and freeze hole activation for CLExt and continue earthworks and construction of surface services to support the expansion of freeze activities required for future production from CLExt.See full Quarterly ReportEnvironment & SafetyWorker safety, protection of the environment and proper decommissioning after mining is completed, are of the utmost importance to Cameco.See moreReserves & ResourcesOur mineral reserves and resources are the foundation of our company and fundamental to our success.See more

SafetyWe manage the safety of our workers through programs, systems, and standards, with our Safety, Health, Environment and Quality (SHEQ) Policy providing overarching guidance. There are many aspects of the management system that contribute to a safe work environment, a few examples include:Risk assessments help identify issues and determine the appropriate controls; the corrective action process verifies that incidents and near misses are reported, tracked, investigated and shared with colleagues; and emergency preparedness and planning prepare us to respond to serious incidents.We have developed 12 corporate safety standards to help protect our workers from our most common hazards. Some standards guide our general safety practices, such as our job hazard analysis and our job task observation, and other standards deal with specific hazardous situations (similar to other companies’ life saving rules): such as fall protection, confined space entry, rigging and hoisting, and control of hazardous energy (also referred to as lockout/tagout).Routine audits are conducted to monitor compliance with regulations and our own requirements. These and other aspects of the management system are routinely examined to verify that they continue to be effective at keeping our workers safe.Radiation ProtectionRadiation risks are effectively managed at McArthur River and Key Lake. Each operation has a formal radiation protection program and dedicated personnel who ensure that doses to workers are as low as reasonably achievable. The programs require that radiation protection is considered in the physical design of all facilities and operating procedures. They also provide for systematic monitoring of radiation in work areas and track exposures of individual workers using a combination of monitoring devices and health testing. Radiation exposures at McArthur River and Key Lake are far below below the regulated limits.Environmental ProtectionAt Cameco, protection of the environment is one of our highest corporate priorities during all stages of our activities, from exploration through development, operations, decommissioning, and reclamation.We monitor our performance by tracking corporate and site-specific key performance indicators, conducting environmental monitoring programs, and regularly auditing our adherence to the requirements of these programs We use the information from all of our programs to help us to identify opportunities to improve.Environmental management systemWe have a ISO 14001-certified environmental management system used across our operating sites, which is supported by a corporate Environmental Management Program that outlines the operating requirements sites must meet. Our environmental management system encourages and promotes continuous adaptation of our practices based on new information and technologies.Environmental risk assessmentsWe complete environmental risk assessments to systematically identify, quantify, and to characterize the potential risks to the environment, workers, and the public. We use our environmental risk assessments to inform our decisions and actions. Additionally, we complete an iterative process, where required, to verify that our proposed measures to protect the environment and the public are effective. We review or update the assessments every five years, incorporating results from our environmental monitoring programs and other scientific advances.Environmental performance reportsFor our Saskatchewan operations, every five years we also compare monitoring data collected during the reporting period against predictions contained in approved environmental risk assessments or environmental assessments. By reviewing the data from the performance reports and conducting risks assessments, we are able to demonstrate that human health and the environment in the vicinity of our Saskatchewan operations remains protected. Results from these analyses are also used to inform changes to the environmental monitoring programs conducted at each operation.Corrective action processWe have a corrective action process in place to systematically investigate and address the causes of non-conformance to regulatory requirements or internal standards. The process includes classifying the non-conformance, assigning the appropriate level of investigation (dependent on incident significance), and tracking the recommended corrective actions to prevent and mitigate similar occurrences.AuditsTo support our culture of continuous improvement, our processes and operations undergo regular audits, including:Our environmental management system is audited by a third-party every three years as a requirement to maintain our ISO 14001 certification.Our SHEQ team conducts an internal audit of our SHEQ programs on a three-year cycle. The total audit scope is split in half and executed on a rotating basis. This means that all our sites undergo at least two audits to cover all aspects of our SHEQ programs within every three-year period. The audit follows the ISO 19001 process and encompasses our environmental and safety programs.We also maintain and implement an internal audit program at our corporate office. Results and recommendations from this systematic and documented process are presented to senior management, who are responsible for implementing them and correcting any deficiencies. The internal audit group reports to the audit and finance committee of the board.Environmental MonitoringComprehensive monitoring programs are in place at the McArthur River and Key Lake operations to help ensure that the surrounding environment is protected. Samples of water, air, soil, plants and fish are collected from numerous locations around the sites and tested to confirm that environmental protection systems are effective. Monitoring results are submitted to federal and provincial regulatory authorities for review. Cameco also supports independent regional monitoring downstream of its Saskatchewan operations to ensure there are no cumulative effects on the regional watershed. The extensive monitoring undertaken at McArthur River and Key Lake has identified no significant impact on the surrounding environment.

We are dedicated to our core value of integrity and apply high standards of ethical behaviour and transparency to our business activities.The following are highlights of selected governance topics. Please see our 2024 Sustainability Report for more information or Our Performance for all indicator results.Governance for sustainability mattersWe are dedicated to conducting our business responsibly and overseeing and managing our risks in a diligent manner.  We integrate key sustainability factors (safety performance, a clean environment, and supportive communities) into our executive and employee compensation strategy as we believe these factors are critical to Cameco’s long-term success.Role of our boardOur board is responsible for overseeing the integration of sustainability principles throughout the company. The board’s goal is to help ensure that we operate as a sustainable business, optimizing financial returns while effectively managing risk, including sustainability matters and climate-related risks.Management's roleOur executives work with leaders and experts across the company to better understand and manage sustainability topics and climate-related risks and opportunities. The chart below illustrates how sustainability topics and climate-related information flows between groups with sustainability and climate-related responsibilities across Cameco. Learn more about governance for sustainability mattersBusiness Ethics and Integrity At Cameco, one of our four core values is integrity. Through our personal and professional integrity, we lead by example, earn trust, honour our commitments, and conduct our business ethically. Our reputation for maintaining the highest standards of ethical behaviour has helped Cameco to grow into the global business it is today.Our Code of Conduct and Ethics guides how we uphold our value of integrity. The Code applies to all employees, officers and members of Cameco’s board and subsidiary boards and sets out our principles and guidelines for ethical behaviour. Our corporate ethics program is underpinned by:Conduct and ethics committee - Our conduct and ethics committee shares the responsibility for oversight and reporting of ethics matters and practices to executive officers and the board.Conduct and ethics training - All new employees take a mandatory Code of Conduct and Ethics training course. Targeted employees are required to take mandatory refresher courses annually.Ethics hotline - Through a third-party service provider, we also offer an anonymous ethics hotline that is open to all employees, contractors, and suppliers from across our operations. Information about the hotline is broadly communicated.Learn more about our conduct and ethicsTax Transparency Cameco’s commitment to ethical behaviour and integrity includes transparency into our corporate taxation. We pay significant amounts of taxes across multiple jurisdictions, including for income taxes. As a result, our consolidated tax rate is a blend of rates applicable in Canada and in the jurisdictions of our foreign subsidiaries and affiliates. In addition, we collect and remit uranium royalties, property taxes, sales and use tax, indirect taxes, and employment taxes from our more than 2,800 employees.At Cameco, we believe that tax is a fundamental component of overall financial performance. We are guided by our Code of Conduct and Ethics and comply with all tax laws that apply to our operations. Our tax department works collaboratively with other business units to preserve long-term value, and we monitor and adjust to legislative changes in each jurisdiction where we do business. We have annually reported payments to governments, as required by Canada’s Extractive Sector Transparency Measures Act (ESTMA). Extending beyond tax transparency, our 2024 ESTMA report details royalties, fees, and other payments made to Indigenous, municipal, provincial, and federal governments in Canada, the US, and Australia by Cameco and our subsidiaries for commercial development related to the exploration and extraction of minerals.Learn more about tax transparencyResponsible Supply Chain We are committed to fair competition in all dealings with suppliers, supporting local procurement, and making our purchases honestly and objectively. We use ISNetworld to screen contractors who provide services at our sites. All contractors must meet our basic requirements including demonstrating technical capabilities and having adequate safety practices and appropriate insurance in place. As a supplier to the Canadian nuclear industry, our fuel services facilities follow Canadian Standards Association’s (CSA) N299 standard, which sets out quality assurance program requirements for the supply of items and services for nuclear power plants.We also want to make sure that our suppliers and contractors respect and uphold our ethical, safety and environmental practices. Our Supplier Code of Conduct and Ethics outlines our expectations for those who provide goods and/or services to Cameco, including their representatives and employees. The Supplier Code requires our suppliers to adhere to all human rights, labour, and employment laws in the countries where they operate.Human rights in the supply chainWe are committed to respecting and observing the protection of human rights and share the values reflected in international proclamations about human rights, such as the Universal Declaration of Human Rights. We respect human rights wherever we operate and prohibit human trafficking, slavery, forced labour, and child labour within our operations and our supply chain, which is reinforced by our Supplier Code of Conduct and Ethics.Commitment to local procurement We are committed to using local suppliers wherever we operate. It is a commitment codified in our Procurement of Goods and Services Policy and exemplified by our spending in northern Saskatchewan, where we have procured more than $594 million in services from northern-owned companies over the past three years. In 2024, 71% of all spend on services at our northern Saskatchewan mine sites was with northern-owned businesses. In northern Saskatchewan, we have commitments through collaboration agreements with a select number of construction and civil works companies that are Preferred Northern Contractors (PNCs). All PNCs must also follow our standards.Learn more about our responsible supply chainLearn more2024 Sustainability Report - GovernanceOur Performance for all indicator results.Governance at CamecoCode of Conduct and EthicsGovernanceLeadershipManagement Proxy Circular

SafetyWe manage the safety of our workers through programs, systems, and standards, with our Safety, Health, Environment and Quality (SHEQ) Policy providing overarching guidance. There are many aspects of the management system that contribute to a safe work environment, a few examples include:Risk assessments help identify issues and determine the appropriate controls; the corrective action process verifies that incidents and near misses are reported, tracked, investigated and shared with colleagues; and emergency preparedness and planning prepare us to respond to serious incidents.We have developed 12 corporate safety standards to help protect our workers from our most common hazards. Some standards guide our general safety practices, such as our job hazard analysis and our job task observation, and other standards deal with specific hazardous situations (similar to other companies’ life saving rules): such as fall protection, confined space entry, rigging and hoisting, and control of hazardous energy (also referred to as lockout/tagout).Routine audits are conducted to monitor compliance with regulations and our own requirements. These and other aspects of the management system are routinely examined to verify that they continue to be effective at keeping our workers safe.Recognized for four consecutive years by the Canadian Institute of Mining's John T. Ryan Regional Safety Trophy, Cigar Lake's risk-based approach and strong safety culture seeks to introduce safety controls before incidents occur.Radiation ProtectionRadiation risks are effectively managed at Cigar Lake through a formal radiation protection program and dedicated personnel who ensure that doses to workers are as low as reasonably achievable. The program ensures that radiation protection is considered in the physical design of all facilities and operating procedures. It also provides for systematic monitoring of radiation in work areas and tracking the exposures of individual workers using a combination of monitoring devices and health testing. Radiation exposures at Cigar Lake are far below the regulated limits.Environmental ProtectionAt Cameco, protection of the environment is one of our highest corporate priorities during all stages of our activities, from exploration through development, operations, decommissioning, and reclamation.We monitor our performance by tracking corporate and site-specific key performance indicators, conducting environmental monitoring programs, and regularly auditing our adherence to the requirements of these programs We use the information from all of our programs to help us to identify opportunities to improve.Environmental management systemWe have a ISO 14001-certified environmental management system used across our operating sites, which is supported by a corporate Environmental Management Program that outlines the operating requirements sites must meet. Our environmental management system encourages and promotes continuous adaptation of our practices based on new information and technologies.Environmental risk assessmentsWe complete environmental risk assessments to systematically identify, quantify, and to characterize the potential risks to the environment, workers, and the public. We use our environmental risk assessments to inform our decisions and actions. Additionally, we complete an iterative process, where required, to verify that our proposed measures to protect the environment and the public are effective. We review or update the assessments every five years, incorporating results from our environmental monitoring programs and other scientific advances.Environmental performance reportsFor our Saskatchewan operations, every five years we also compare monitoring data collected during the reporting period against predictions contained in approved environmental risk assessments or environmental assessments. By reviewing the data from the performance reports and conducting risks assessments, we are able to demonstrate that human health and the environment in the vicinity of our Saskatchewan operations remains protected. Results from these analyses are also used to inform changes to the environmental monitoring programs conducted at each operation.Corrective action processWe have a corrective action process in place to systematically investigate and address the causes of non-conformance to regulatory requirements or internal standards. The process includes classifying the non-conformance, assigning the appropriate level of investigation (dependent on incident significance), and tracking the recommended corrective actions to prevent and mitigate similar occurrences.AuditsTo support our culture of continuous improvement, our processes and operations undergo regular audits, including:Our environmental management system is audited by a third-party every three years as a requirement to maintain our ISO 14001 certification.Our SHEQ team conducts an internal audit of our SHEQ programs on a three-year cycle. The total audit scope is split in half and executed on a rotating basis. This means that all our sites undergo at least two audits to cover all aspects of our SHEQ programs within every three-year period. The audit follows the ISO 19001 process and encompasses our environmental and safety programs.We also maintain and implement an internal audit program at our corporate office. Results and recommendations from this systematic and documented process are presented to senior management, who are responsible for implementing them and correcting any deficiencies. The internal audit group reports to the audit and finance committee of the board.Environmental MonitoringComprehensive monitoring programs are in place at the Cigar Lake operation to help protect the surrounding environment. Samples of water, air, soil, plants and fish are collected from numerous locations around the site and tested to confirm that environmental protection systems are effective. Monitoring results are submitted to federal and provincial regulatory authorities for review. Cameco also supports independent regional monitoring downstream of its Saskatchewan operations to ensure there are no cumulative effects on the regional watershed. The extensive monitoring undertaken at Cigar Lake has identified no significant impact on the surrounding environment.

SafetyWe manage the safety of our workers through programs, systems, and standards, with our Safety, Health, Environment and Quality (SHEQ) Policy providing overarching guidance. There are many aspects of the management system that contribute to a safe work environment, a few examples include:Risk assessments help identify issues and determine the appropriate controls; the corrective action process verifies that incidents and near misses are reported, tracked, investigated and shared with colleagues; and emergency preparedness and planning prepare us to respond to serious incidents.We have developed 12 corporate safety standards to help protect our workers from our most common hazards. Some standards guide our general safety practices, such as our job hazard analysis and our job task observation, and other standards deal with specific hazardous situations (similar to other companies’ life saving rules): such as fall protection, confined space entry, rigging and hoisting, and control of hazardous energy (also referred to as lockout/tagout).Routine audits are conducted to monitor compliance with regulations and our own requirements. These and other aspects of the management system are routinely examined to verify that they continue to be effective at keeping our workers safe.Radiation ProtectionRadiation risks are effectively managed at Rabbit Lake through a formal radiation protection program and dedicated personnel who ensure that doses to workers are as low as reasonably achievable. The program ensures that radiation protection is considered in the physical design of all facilities and operating procedures. It also provides for systematic monitoring of radiation in work areas and tracking the exposures of individual workers using a combination of monitoring devices and health testing. Radiation exposures at Rabbit Lake are far below the regulated limits.Environmental ProtectionAt Cameco, protection of the environment is one of our highest corporate priorities during all stages of our activities, from exploration through development, operations, decommissioning, and reclamation.We monitor our performance by tracking corporate and site-specific key performance indicators, conducting environmental monitoring programs, and regularly auditing our adherence to the requirements of these programs We use the information from all of our programs to help us to identify opportunities to improve.Environmental management systemWe have a ISO 14001-certified environmental management system used across our operating sites, which is supported by a corporate Environmental Management Program that outlines the operating requirements sites must meet. Our environmental management system encourages and promotes continuous adaptation of our practices based on new information and technologies.Environmental risk assessmentsWe complete environmental risk assessments to systematically identify, quantify, and to characterize the potential risks to the environment, workers, and the public. We use our environmental risk assessments to inform our decisions and actions. Additionally, we complete an iterative process, where required, to verify that our proposed measures to protect the environment and the public are effective. We review or update the assessments every five years, incorporating results from our environmental monitoring programs and other scientific advances.Environmental performance reportsFor our Saskatchewan operations, every five years we also compare monitoring data collected during the reporting period against predictions contained in approved environmental risk assessments or environmental assessments. By reviewing the data from the performance reports and conducting risks assessments, we are able to demonstrate that human health and the environment in the vicinity of our Saskatchewan operations remains protected. Results from these analyses are also used to inform changes to the environmental monitoring programs conducted at each operation.Corrective action processWe have a corrective action process in place to systematically investigate and address the causes of non-conformance to regulatory requirements or internal standards. The process includes classifying the non-conformance, assigning the appropriate level of investigation (dependent on incident significance), and tracking the recommended corrective actions to prevent and mitigate similar occurrences.AuditsTo support our culture of continuous improvement, our processes and operations undergo regular audits, including:Our environmental management system is audited by a third-party every three years as a requirement to maintain our ISO 14001 certification.Our SHEQ team conducts an internal audit of our SHEQ programs on a three-year cycle. The total audit scope is split in half and executed on a rotating basis. This means that all our sites undergo at least two audits to cover all aspects of our SHEQ programs within every three-year period. The audit follows the ISO 19001 process and encompasses our environmental and safety programs.We also maintain and implement an internal audit program at our corporate office. Results and recommendations from this systematic and documented process are presented to senior management, who are responsible for implementing them and correcting any deficiencies. The internal audit group reports to the audit and finance committee of the board.Environmental MonitoringComprehensive monitoring programs are in place at the Rabbit Lake operation to help protect the surrounding environment. Samples of water, air, soil, plants and fish are collected from numerous locations around the site and tested to confirm that environmental protection systems are effective. Monitoring results are submitted to federal and provincial regulatory authorities for review. Cameco also supports independent regional monitoring downstream of its Saskatchewan operations to ensure there are no cumulative effects on the regional watershed. The extensive monitoring undertaken at Rabbit Lake has identified no significant impact on the surrounding environment.

Cameco can provide dynamic, rewarding career opportunities in the uranium mining, milling and fuel services industry.Our values guide our business decisions and we place a safe, healthy and rewarding workplace at the top of our key measures of success.We employ a highly diverse workforce here in Saskatchewan and around the world.Why Cameco?Because we aim to:Recruit the best people who will understand and share our vision and values and who can help us effectively carry out our mission.Manage talent in relation to business needs.Manage employees’ performance constructively so they can work to the best of their abilities.Establish clear responsibilities and accountabilities for every employee.Offer competitive compensation and benefits.Develop leadership skills at all levels that reflect our corporate values, competencies and behaviours.Recognize employee contributions.Encourage creativity and sharing of ideas.Promote and support continuous learning and career development.Provide a safe and healthy working environment that is free from harassment and discrimination.Promote and support healthy lifestyles.Promote an inclusive and diverse workplace and respect cultural traditions in communities where we operate.Provide flexibility to help employees balance work and personal commitments effectively.Provide transparent and consistent employee programs, standards and procedures.Respect our employees’ privacy.Total rewardsOur total rewards include everything from competitive salaries and variable compensation to flexible benefits, career development and retirement funding support.Learn moreOur cultureBeyond Cameco's total rewards programs, we actively support a culture of excellence and integrity which is demonstrated each and every day by our people around the world.Learn moreA diverse workforceAt Cameco, we appreciate the true value of a diverse workforce and we embrace, encourage and support an inclusive and barrier-free work environment.Learn more

A strategy to achieve our visionOur uranium and fuel services products are used around the world in the generation of safe, carbon-free, affordable, base-load nuclear energy. As we seek to power a secure energy future, we do so in a manner that reflects our values. We are committed to identifying and addressing the environmental, social and governance (ESG) risks and opportunities that we believe may have a significant impact on our ability to add long-term value.We are a pure-play investment in the growing demand for nuclear energy. We are focused on providing nuclear fuel products and services across the fuel cycle to support the generation of clean, reliable, secure and affordable energy. Nuclear energy must be a central part of the solution to the world’s shift to a low-carbon, climate resilient economy. It is an option that can provide the power needed, not only reliably, but also safely and affordably, and in a way that will help avoid some of the worst consequences of climate change.Learn more about our business strategy