---
title: "Cameco Corp Says It Has Temporarily Halted Production Activities At Key Lake Mill And Reduced Activity At Mcarthur River Mine"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/285880023.md"
datetime: "2026-05-11T04:19:52.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/285880023.md)
  - [en](https://longbridge.com/en/news/285880023.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/285880023.md)
---

# Cameco Corp Says It Has Temporarily Halted Production Activities At Key Lake Mill And Reduced Activity At Mcarthur River Mine

May 11 (Reuters) - Cameco Corp (CCO.TO) : \* NORTHERN SASKATCHEWAN OPERATIONS UPDATE \* CAMECO CORP - TEMPORARILY HALTED PRODUCTION ACTIVITIES AT KEY LAKE MILL AND REDUCED ACTIVITY AT MCARTHUR RIVER MINE \* CAMECO CORP - FLOODING CAUSES COLLAPSE OF SMOOTHSTONE RIVER BRIDGE, IMPACTING SUPPLY ROUTE TO CAMECO SITES \* CAMECO CORP - RISK THAT 2026 PRODUCTION OUTLOOK FOR MCARTHUR RIVER/KEY LAKE COULD BE IMPACTED Source text: Further company coverage: (CCO.TO)

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