Cameco Reports Second Quarter Results: Year-to-Date Performance on Track; Production Outlook Unchanged; Strategically Positioned Across the Nuclear Fuel Cycle; Significant Support for Nuclear Energy Reinforces Stronger Long-Term Uranium Prices

All amounts in Canadian dollars unless specified otherwise

Cameco (TSX: CCO; NYSE: CCJ) today reported its consolidated financial and operating results for the second quarter ended June 30, 2026, in accordance with International Financial Reporting Standards (IFRS).

“Our year-to-date financial and operational performance reflects the value of aligning our marketing, operational and financial decisions with strengthening industry fundamentals,” said Tim Gitzel, Cameco’s CEO. “Our second quarter financial results reflect normal quarterly variability, and while uranium production was impacted by challenging spring road conditions along our northern Saskatchewan supply routes, our annual production outlook remains unchanged.

“Across the nuclear fuel cycle, market conditions continued to improve during the first half of the year. The long-term uranium price strengthened further, supported by increased on and off-market contracting activity in the first half of the year as customers’ increasingly focus on security of supply. Around the world, governments, utilities and energy-intensive industries have recognized nuclear energy’s essential role in supporting energy security, national security and decarbonization objectives. Those objectives are translating into calls for the expansion of nuclear energy, declarations of government-enabled policy support, and continued improvements in public perception. In turn, we are seeing durable demand growth for the uranium and nuclear fuel services required to support these long-term structural drivers.