2013-02-12 19:37:06 -

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 



This announcement is distributed by Thomson Reuters on behalf of 
Thomson Reuters clients. The owner of this announcement warrants that: 
(i) the releases contained herein are protected by copyright and 
    other applicable laws; and 
(ii) they are solely responsible for the content, accuracy and 
     originality of the information contained therein. 
    
Source: Ameren Corporation via Thomson Reuters ONE
[HUG#1677588]