ST. LOUIS--(BUSINESS WIRE)--April 18, 2008--Ameren Corporation (NYSE:AEE) will Webcast its annual meeting of shareholders at 9:00 a.m. Central, Tuesday, April 22, 2008.

The Webcast and Ameren's presentation slides will be available from the home page and the Investor's area of Ameren's site, www.ameren.com. A replay of the Webcast will be available approximately one hour after the presentation for one year.

With assets of $21 billion, Ameren serves approximately 2.4 million electric customers and almost one million natural gas customers in a 64,000 square mile area of Missouri and Illinois.

    CONTACT: Ameren
             Media Contact
             Erica Abbett, 314-206-0646
             eabbett@ameren.com
             or
             Ameren
             Analysts
             Bruce Steinke, 314-554-2574
             tnistendirk@ameren.com
             or
             Ameren
             Investors:
             Investor Services
             invest@ameren.com

    SOURCE: Ameren Corporation