A. O. Smith to hold first quarter conference call on April 20

Milwaukee, Wis. - April 2, 2012 - A. O. Smith Corporation (NYSE:AOS) will release its first quarter 2012 financial results before the market opens on Friday, April 20, and has scheduled an investor conference call to follow at 10:00 a.m. (Eastern Daylight Time).

The call can be heard live on the company's web site www.aosmith.com. An audio replay of the call will be available on the company's web site after the live event. To access the archived audio replay, go to the "Investors" page and select the First Quarter Conference Call link.

A. O. Smith Corporation is one of the world's leading manufacturers of residential and commercial water heating equipment and boilers, offering a comprehensive line featuring the best-known brands in North America and China, as well as water purification products for residential and light commercial applications. A. O. Smith, headquartered in Milwaukee, Wis., employs approximately 10,500 people at operations in the U. S., Canada, Mexico, India, China, and the Netherlands.