OGK-4 BOARD OF DIRECTORS DECIDES TO CONVENE EXTRAORDINARY GENERAL MEETING

The Board of Directors of Generation Company Four of the Wholesale Power Market (OGK-4) has decided to convene the Extraordinary General Meeting of the Company's shareholders. The Meeting will be held by absentee voting. The deadline for the receipt of completed ballots is July 2, 2007. The shareholder register specifying shareholders entitled to vote at the EGM will be closed on May 22, 2007.

The OGK-4 Board of Directors plans to consider EGM-related issues not later than May 30, 2007.