THE CORPORATE LIBRARY

Related Party Transactions and Outside Related Director Information

Pepco Holdings, Inc. (POM)

3/30/2006 Proxy Information

Pauline Schneider, a director of the Company, is a partner in the law firm of Hunton & Williams. Hunton & Williams rendered legal services to subsidiaries of the Company in 2005 and is expected to render services to the Company’s subsidiaries in 2006.

3/31/2005 Proxy Information

Pauline Schneider, a director of the Company, is a partner in the law firm of Hunton & Williams. Hunton & Williams rendered legal services to subsidiaries of the Company in 2004 and is expected to render services to the Company’s subsidiaries in 2005.

4/1/2004 Proxy Information

Pauline Schneider, a director of the Company, is a partner in the law firm of Hunton & Williams. Hunton & Williams rendered legal services to subsidiaries of the Company in 2003 and is expected to render services to the Company’s subsidiaries in 2004.

Edward F. Mitchell is retired Chairman of Potomac Electric Power Company, a position he held from 1992-1999. He was Chief Executive Officer of Potomac Energy from 1989-1997.

3/6/2003 Proxy Information

Pauline Schneider, a director of the Company, is a partner in the law firm of Hunton & Williams. Hunton & Williams rendered legal services to subsidiaries of the Company in 2002 and is expected to render services to the Company’s subsidiaries in 2003.