Market Regulation Services - Trading Halt - Keystone North America Inc. - KNA.UN

May 7, 2008


    TORONTO, May 7 /CNW/ - The following issues have been halted by Market
Regulation Services (RS):

    Issuer Name: Keystone North America Inc.
    TSX Ticker Symbol: KNA.UN
    Time of Halt: 13:35 EDT
    Reason for Halt: Pending News




For further information:

For further information: contact - RS Inquiries (416) 646-7299 - *
Please note that RS is not able to provide any additional information
regarding a specific trading halt. Information is limited to general enquiries
only.