TSX Venture Exchange Welcomes Prairie-based Issuers

    WINNIPEG, Nov. 20 /CNW/ - TSX Venture Exchange is taking the opportunity
to celebrate the listing of the newest issuers from Manitoba and Saskatchewan.
This reception on Thursday, November 22, will welcome the 4 emerging companies
who have listed on Canada's junior exchange since June 2007.
    The companies to be honoured include:

    All in West! Capital Corporation - ALW (Manitoba)
    DiaMedica Inc. - DMA (Manitoba)
    Mainstream Minerals Corporation - MJO (Manitoba)
    49 North Resource Fund LP - FNR.UN (Saskatchewan)

    Representatives from the newly listed companies will join TSX Venture
Exchange President, Kevan Cowan in celebrating their listing.

    WHAT:   TSX Venture Exchange Winnipeg Listing Ceremony

    WHEN:   Thursday, November 22, 2007, 5:00 p.m - 7:00 p.m. (CST)

    WHERE:  Winnipeg Radisson, 280 Portage Ave., Terrace Room, Winnipeg, MB

    About TSX Group Inc. (TSX-X)
    TSX Group operates Canada's two national stock exchanges, Toronto Stock
Exchange serving the senior equity market and TSX Venture Exchange serving the
public venture equity market, Natural Gas Exchange (NGX), a leading North
American exchange for the trading and clearing of natural gas and electricity
contracts and Shorcan Brokers Limited, the country's first fixed income
inter-dealer broker. TSX are the initials attached to the core equity
operations of TSX Group (www.tsx.com): Toronto Stock Exchange, TSX Venture
Exchange, TSX Markets, TSX Datalinx, and TSX Technologies. TSX Group is
headquartered in Toronto and maintains offices in Montreal, Winnipeg, Calgary
and Vancouver.

For further information:

For further information: Steve Kee, Director, Corporate Communications,
TSX Group Inc., Toronto Office (416) 947-4682, Toll Free 1-888-873-8392,
Cellular (416) 358-3714, Vancouver Office (604) 602-6902, Calgary Office (403)
218-2892, steve.kee@tsx.com

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