Ameren Corporation : Ameren Corporation Fourth Quarter 2012 Earnings Webcast Feb. 20, 2013

 Ameren Corporation : Ameren Corporation Fourth Quarter 2012 Earnings Webcast
                                Feb. 20, 2013

ST. LOUIS, Feb. 12, 2013 - Thomas R. Voss, chairman, president and CEO of
Ameren Corp. (NYSE:AEE), will join Martin J. Lyons, executive vice president
and CFO of Ameren Corp., to discuss 2012 earnings, 2013 guidance and other
matters related to the company in a conference call with financial analysts on
Wednesday, Feb. 20, 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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Source: Ameren Corporation via Thomson Reuters ONE
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