Market Regulation Services - Trading Halt - Osisko Exploration Ltd. - OSK

Jul 4, 2007


    VANCOUVER, July 4 /CNW/ - The following issues have been halted by Market
Regulation Services (RS):

    Issuer Name: Osisko Exploration Ltd.
    TSX-V Ticker Symbol: OSK
    Time of Halt: 11:58 EST
    Reason for Halt: Pending News

For further information:

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