International Corporate Governance Network to open trading on Toronto Stock
Exchange

TMX Group CEO, Tom Kloet, to participate in ICGN Conference

TORONTO, June 4 /CNW/ - International Corporate Governance Network (ICGN) representatives Carl Rosén, Executive Director, ICGN UK and Claude Lamoureux, O.C., Former CEO, Ontario Teachers' Pension Plan will join Tom Kloet, CEO, TMX Group, to open the market on Monday, June 7, 2010.

The 2010 ICGN Annual Conference is being held in Toronto from June 7 to 9 at the Fairmont Royal York Hotel, and is hosted by the Ontario Teachers' Pension Plan and the CPP investment board.

On Monday, June 7, at 11:45 AM, Mr. Kloet will participate in the ICGN Annual Conference panel discussion, The Evolution of Capital Markets: Threats to Good Corporate Governance.

ICGN is a corporate governance organization with the mission to raise the standards of corporate governance worldwide. ICGN operates in 45 countries and has a global membership of approximately 450 leaders.

For Market Openings: 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 TMX Broadcast Centre and sent live to the TOC. Those featured in the market opening move 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 TMX Group (TSX-X)

TMX Group's key subsidiaries operate cash and derivative markets for multiple asset classes including equities, fixed income and energy. Toronto Stock Exchange, TSX Venture Exchange, Montreal Exchange, Natural Gas Exchange, Boston Options Exchange (BOX), Shorcan, Equicom and other TMX Group companies provide trading markets, clearing facilities, data products and other services to the global financial community. TMX Group is headquartered in Toronto with offices in Montreal, Calgary and Vancouver. For more information about TMX Group, visit our website at www.tmx.com.

For further information: Carolyn Quick, Director, Corporate Communications, TMX Group, [phone], [email protected]