NOTICE OF CHANGE OF LOCATION
OF 2020 ANNUAL MEETING OF STOCKHOLDERS
TO BE HELD ON APRIL 15, 2020
To the
Stockholders of A. O. Smith Corporation:
Due to the emerging public health threat of the coronavirus pandemic
(COVID-19), and to support the health and well-being of our stockholders, employees, directors, and communities, NOTICE IS HEREBY GIVEN that the 2020 Annual Meeting of Stockholders of A. O. Smith Corporation
(the Company) will be held as a virtual meeting only. You will not be able to attend the Annual Meeting in person. As previously announced, the Annual Meeting will be held on Wednesday, April 15, 2020, at 8:00 a.m. Central Daylight
Time.
As described in the previously distributed proxy materials for the Annual Meeting, you are entitled to participate in the Annual Meeting if you
were a stockholder of record as of February 18, 2020, or hold a legal proxy for the Annual Meeting provided by your bank, broker, or nominee.
To
attend the Annual Meeting as a virtual meeting, simply go online to the virtual meeting website at https://web.lumiagm.com/235079118. You can also access the link directly from our website at www.aosmith.com under the
InvestorsEvents and Presentations page. You will then need to enter the control number found on your proxy card, voting instruction form or notice you previously received along with the Meeting Code # AOSMITH2020 to
be admitted to the meeting. Registered shareholders may contact (800) 468-9716 if they require assistance with respect to their control number. If you have not already cast your vote, you may vote during the
Annual Meeting by following the instructions that will be available on the virtual meeting website during the Annual Meeting. You may also enter the meeting as a guest without a control number by entering the meeting code, but you will not be able
to cast your vote as a guest.
Whether or not you plan to attend the Annual Meeting, we urge you to vote and submit your proxy in advance of the meeting
by one of the methods described in the proxy materials. If you have already voted, your vote is still effective, and it will be cast in accordance with your instructions by one of the duly appointed proxies at the Annual Meeting. The proxy card,
voting instruction form or notice included with the previously distributed proxy materials may continue to be used to vote your shares in connection with the Annual Meeting.