TSXgroup

June 20, 2007

JUNE 20, 2007 (TORONTO) – TSX Venture 50 is back to celebrate Canada’s top emerging public companies. Tonight (Wednesday, June 20), TSX Venture Exchange will celebrate 50 companies who have stood out in their respective industry sector this past year. A Market Open ceremony at the TSX Broadcast Centre will follow-up the festivities tomorrow morning (Thursday, June 21) to highlight the top companies in each sector.

The top companies in the five industry sectors were:

• ECU Silver Mining Inc. – Mining
• Versatile Systems Inc. – Technology
• Falcon Oil & Gas Ltd. – Oil & Gas
• Neptune Technologies & Bioressources Inc. – Life Sciences
• Longview Capital Partners Incorporated – Diversified Industries

The TSX Venture 50 are the top 10 companies in each of five major industry sectors – Mining, Oil & Gas, Technology, Life Sciences and Diversified Industries – based on a ranking formula with equal weighting given to one-year revenue (last reported 12 months), return on investment, market cap growth and trading volume. All data was as at December 31, 2006.

“TSX Venture Exchange provides emerging companies with a special opportunity to participate in the marketplace” said Kevan Cowan, President, TSX Venture Exchange. “TSX Venture 50 allows them to rise above it. By recognizing these companies who are setting the bar, we are bringing great awareness to this dynamic and competitive junior marketplace.”

The 2007 TSX Venture 50 companies are:

Mining
ECU Silver Mining Inc.
Excellon Resources Inc.
Strateco Resources Inc.
Aurelian Resources Inc.
Dia Bras Exploration Inc.
UrAsia Energy Ltd.
Pacifica Resources Ltd.
Hathor Exploration Limited
Goldmarca Limited
Brilliant Mining Corp.

Oil & Gas
Falcon Oil & Gas Ltd.
Pacific Stratus Energy Ltd.
Bronco Energy Ltd.
Culane Energy Corp.
Brazalta Resources Corp.
Dejour Enterprises Ltd.
Canoro Resources Ltd.
Rolling Thunder Exploration Ltd.
Orca Exploration Group Inc.
RSX Energy Inc.

Technology
Versatile Systems Inc.
WebTech Wireless Inc.
TransGaming Inc.
D-Box Technologies Inc.
Bluepoint Data Storage, Inc.
Sangoma Technologies Corporation
Immersive Media Corp.
Zaio Corporation
Dynasty Gaming Inc.
DEQ Systems Corp.

Life Sciences
Neptune Technologies & Bioressources Inc.
InNexus Biotechnology Inc.
Amorfix Life Sciences Ltd.
Response Biomedical Corp.
ORTHOsoft Inc.
IRI Separation Technologies Inc.
Covalon Technologies Ltd.
The Medipattern Corporation
Burcon NutraScience Corporation
Pyng Medical Corp.

Diversified Industries
Longview Capital Partners Inc.
Hy-Drive Technologies Ltd.
Crossfire Holdings Inc.
Raymor Industries Inc.
Sigma Ventures Inc.
SmartCool Systems Inc.
BioteQ Environmental Technologies Inc.
Aeroquest International Limited
VendTek Systems Inc.
Skana Capital Corp.

TSX Group Market Opening

TSX Venture Exchange officials, along with selected TSX Venture 50 issuers, will open trading on Thursday, June 21 2007. Executives from the issues along with TSX Venture Exchange President Kevan Cowan will be available to speak to media before this event.

When: Thursday June 21, 2007, 8:45-10:00AM (Market Opening at 9:30 a.m.)

Where: TSX Broadcast Centre, 130 King Street West, Toronto.

Television Editors

Media may pick up a feed from the TOC (television operations centre) for all market open ceremonies. The feed is named TSX Transmit 2 and is produced at the TSX and sent live to the TOC. The client moves into position for the market open ceremony at approximately 9:27 a.m. and the markets will open with the sound of a SIREN (the traditional market open on Toronto Stock Exchange) at 9:30 a.m.

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 interdealer broker. TSX Group also owns The Equicom Group Inc., a leading provider of investor relations and related corporate communication services in Canada. TSX Group is headquartered in Toronto and maintains offices in Montreal, Winnipeg, Calgary and Vancouver.

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.