R E C I T A L SEquity Contribution Agreement • July 17th, 2006 • DUET Investment Holdings LTD • Electric services • New York
EXHIBIT 99.1 JOINT FILING AGREEMENT The undersigned hereby agree that the Statement on Schedule 13D filed herewith (and any amendments thereto), relating to the Common Stock, no par value, of Duquesne Light Holdings, Inc., is being filed jointly with...Joint Filing Agreement • July 17th, 2006 • DUET Investment Holdings LTD • Electric services
The undersigned hereby agree that the Statement on Schedule 13D filed herewith (and any amendments thereto), relating to the Common Stock, no par value, of Duquesne Light Holdings, Inc., is being filed jointly with the Securities and Exchange Commission pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, on behalf of each such person.
