Market Regulation Services - Trading Halt - Cameco Corp - CCO

Jul 20, 2007


    TORONTO, July 20 /CNW/ - The following issues have been halted by Market
Regulation Services (RS):

    Issuer Name: Cameco Corp
    TSX Ticker Symbol: CCO
    Time of Halt: 15:49 EST
    Reason for Halt: Pending News




For further information:

For further information: Market Regulation Services Inc., (416)
646-7299