Market Regulation Services - Trading Halt - Mainstream Minerals Corporation - MJO

Sep 18, 2007


    VANCOUVER, Sept. 18 /CNW/ - The following issues have been halted by
Market Regulation Services (RS):

    Issuer Name: Mainstream Minerals Corporation
    TSX-V Ticker Symbol: MJO
    Time of Halt: at the open
    Reason for Halt: Pending News

For further information:

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