THE CORPORATE LIBRARY

Related Party Transactions and Outside Related Director Information

Duquesne Light Holdings, Inc. (DQE)

4/28/2006 Proxy Information

Two directors, Mrs. Boyce and Mr. Guyaux, reported business relationships with Duquesne Light Holdings or an affiliate. Microbac, Inc., a company owned by Mrs. Boyce’s son, provided more than $100,000 of services in the last three years to a subsidiary of Duquesne Light Holdings, and the Board has therefore determined that Mrs. Boyce is not independent under the NYSE rules. Mr. Guyaux’s employer is a minority member of Duquesne Light Holdings’ bank lending group.

4/13/2005 Proxy Information

Mr. Cohen is Chairman of the law firm of Cohen & Grigsby, P.C. We obtained legal services from the firm in 2004, paying approximately $29,000 in fees. This relationship was terminated in mid-2004.

3/31/2004 Proxy Information

Mr. Cohen is Chairman of the law firm of Cohen & Grigsby, P.C. We obtained legal services from the firm in 2003, and will obtain additional services in 2004. The fees we paid were not material in amount to us or to the law firm.

One of our subsidiaries engaged Microbac Laboratories, Inc., to perform chemical testing services, paying Microbac approximately $176,000 during 2003. Mrs. Boyce is a director of Microbac, and her son is the president and sole stockholder.

In March 2003, our subsidiary, AquaSource, Inc., sold its construction subsidiary for approximately $7 million. Tommy C. Bussell is a principal of the buyer. Mr. Bussell and his wife together own 35.1% of our Preferred Stock, which accounts for approximately 0.16% of the total voting power of our Common and Preferred Stock.

Messrs. Robert P. Hundley, David J. McGilvray and Daniel C. McKee are the previous owners of a water system that was purchased in 2001 by a former AquaSource affiliate. As part of the purchase price, AquaSource agreed to pay an earn-out based on future development of the water system. Since October 2001, each of the three has received approximately $179,000. The earn-out payment obligation was assumed by Philadelphia Suburban Corporation in connection with its July 2003 purchase of AquaSource's investor-owned utilities. In addition, Mr. Hundley was an employee of an AquaSource affiliate in 2003, earning aggregate salary and bonus of approximately $107,500. Messrs. Hundley and McGilvray each owns 13.3% of our Preferred Stock, which accounts for approximately 0.06% of the total voting power of our Common and Preferred Stock. Mr. McGilvray owns 5.9% of our Preferred Stock, which accounts for approximately 0.03% of the total voting power of our Common and Preferred Stock.

Until his March 31, 2003 retirement, Mr. Turner was the Chairman and Chief Executive Officer of Copperweld Corporation. On December 29, 2000, LTV Corporation and 48 subsidiaries (including Copperweld Corporation) filed voluntary petitions under Chapter 11 of the U.S. Bankruptcy Code. On December 19, 2003, Copperweld announced its emergence from bankruptcy as a stand-alone company under a plan of reorganization confirmed by the U.S. Bankruptcy Court.

3/31/2003 Proxy Information

Mr. Cohen is Chairman of the law firm of Cohen & Grigsby, P.C. We obtained legal services from the firm in 2002, and will obtain additional services in 2003. The fees we paid were not material in amount to us or to the law firm.

In March 2003, our subsidiary, AquaSource, Inc., agreed to sell its construction subsidiary for approximately $7 million (before consideration of an earn-out worth up to $1 million) as part of our on-going Back-to-Basics strategy. Tommy C. Bussell is a principal of the buyer. In addition, Mr. Bussell, his sons Craig, and Troy, and his daughter-in-law Mandy are employed by a subsidiary of AquaSource, and earned aggregate salaries and bonuses in 2002 of $123,050, $119,500, $80,007 and $66,005. Mr. Bussell and his wife together own 18.4% of our Preferred Stock, which accounts for approximately 0.17% of the total voting power of our Common and Preferred Stock.

Messrs. Robert P. Hundley, David J. McGilvray and Daniel C. McKee are the previous owners of a water system now owned by an AquaSource affiliate. As part of the purchase price, AquaSource agreed to pay an earn-out based on future development of the water system. Since October 2001, each of the three has received approximately $133,000. In addition, Mr. Hundley and his son-in-law Jeff Stamps are employed by a subsidiary of AquaSource, and earned aggregate salaries and bonuses in 2002 of $111,075 and $89,706. Each of Messrs. Hundley, McGilvray and McKee owns 7% of our Preferred Stock, which accounts for approximately 0.06% of the total voting power of our Common and Preferred Stock.