Gary L Rainwater

Chairman, President and Chief Executive Officer of the Company and CILCORP. Mr. Rainwater began his career with UE in 1979 as an engineer and has held various positions with UE and other Ameren subsidiaries during his employment. Effective January 1, 2004, Mr. Rainwater was elected to serve as Chairman and Chief Executive Officer of the Company, UE and Ameren Services in addition to his position as President. At that time, he was also elected Chairman of CILCORP and CILCO in addition to his position as Chief Executive Officer and President of those companies which he assumed in 2003. In September 2004, upon Ameren's acquisition of IP, Mr. Rainwater was elected Chairman, Chief Executive Officer and President of IP. He held the position of Chairman of CIPS, CILCO and IP after relinquishing his position as President in October 2004. Effective January 2007, Mr. Rainwater relinquished his positions as Chairman, President and Chief Executive Officer of UE and Ameren Services and as Chairman and Chief Executive Officer of CIPS, CILCO and IP. Director of the Company since 2003. Director of the following Ameren subsidiary: CILCORP.