Ameren Corporation Second Quarter 2012 Earnings Webcast Aug. 2, 2012

July 26, 2012

ST. LOUIS, July 26, 2012 - Thomas R. Voss, chairman, president and CEO of Ameren Corp. (NYSE:AEE), will join Martin J. Lyons, senior vice president and CFO of Ameren Corp., to discuss second quarter 2012 earnings and other matters related to the company in a conference call with financial analysts on Thursday, Aug. 2, at 10:00 a.m. Eastern Time (9:00 a.m. Central Time).
 
The call will be broadcast live over the Internet at Ameren.com. Supporting materials for the call will be posted in the Investors/Webcasts and Presentations area of Ameren's website. A replay of the webcast will be available for one year beginning approximately one hour after the close of the call.
 
With assets of $23 billion, Ameren operating companies serve 2.4 million electric customers and more than 900,000 natural gas customers in a 64,000-square-mile area of Missouri and Illinois. Ameren owns a diverse mix of electric generating plants strategically located in its Midwest market with a generating capacity of 15,900 megawatts.
 
Source: Ameren Corp.
 
Ameren Corp.
Media Contact:
Brian Bretsch, 314-554-4135
bbretsch@ameren.com
or
Analysts:
Doug Fischer, 314-554-4859
dfischer@ameren.com
or
Investors:
Investor Services, invest@ameren.com

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