Audit Committee. A Non-Employee Director serving as Chairperson of the Audit Committee shall receive an additional annual retainer of $20,000 for such service. A Non-Employee Director serving as a member of the Audit Committee (other than the Chairperson) shall receive an additional annual retainer of $9,000 for such service.

Independent Chairperson Grant. On the date of the Company’s annual meeting of stockholders, the Independent Chairperson of the Board will receive a restricted stock unit grant on the date of such Annual Meeting (the “IC Grant”) with a Value of $50,000 that vests in full on the earlier of # the one-year anniversary of the grant date or # the next annual meeting of stockholders; provided, however, that all vesting will cease if the director ceases to provide services to the Company, unless the Board determines otherwise prior to the cessation of such services. The Independent Chairperson may elect to receive cash in lieu of the IC Grant, but must meet certain criteria as outlined in [Section II(g)] below. In the event that the Independent Chairperson elects to receive cash in lieu of the IC Grant, the cash payment will occur in the same manner and frequency as the Annual Cash Retainer.

For clarity, each Outside Director who serves as the chairperson of a committee will receive only the additional annual fee as the chairperson of the committee and not the additional annual fee as a member of such committee while serving as such chairperson, provided, that the Outside Director who serves as the Lead Independent Director will receive the annual fee for services provided in such role as well as the annual fee as an Outside Director.

Annual Cash Retainers for Chairperson, Lead Independent Director and Committee Service

Cash Retainers. Each Nonemployee Director is eligible to receive cash retainers at the applicable rates set forth in the following table for each full year of service as # a chairperson and/or member of the Board and # a chairperson of a committee of the Board (“Committee”):

Effective January 1, 2018, compensation paid to non-employee directors of A. O. Smith Corporation is as follows: Directors will receive a cash annual retainer of $65,000, paid in quarterly amounts of $16,250. The lead director retainer of $20,000 annually remains unchanged. Each Personnel and Compensation Committee and Investment Policy Committee member receives an annual retainer of $13,000, paid quarterly, and each member of the Nominating and Governance Committee receives $10,500 annually, with the Chairperson of each of these Committees receiving an additional $7,000 annual retainer. Each Audit committee member receives an annual retainer of $22,000, paid quarterly with the Chairperson receiving an additional $5,000 annual retainer. The award of shares of Common Stock to each director remained unchanged. Each director receives Common Stock with a market value of $125,000 on the date of the award. The retainers were calculated to be comparable to the directors’ total compensation under the previous system, while simplifying record keeping and reporting.

Committee. The Compensation Committee of the Board (or subcommittee thereof) or such other committee (or subcommittee thereof) as shall be appointed by the Board to administer the Plan pursuant to Section 3. The Committee shall consist solely of two (2) or more directors who are # “non-employee directors” (within the meaning of Rule 16b-3 under the Exchange Act) for purposes of exercising administrative authority with respect to Options granted to Participants who are subject to Section 16 of the Exchange Act; # to the extent required by the rules of the New York Stock Exchange or any national stock exchange or automated quotation system on which the Common Stock is then listed or quoted, “independent” within the meaning of such rules; and # at such times as an Option granted under the Plan by the Company is subject to Section 162(m) of the Code (to the extent relief from the limitation of Section 162(m) of the Code is sought with respect to Options and administration of the Options by a committee of “outside directors” is required to receive such relief) “outside directors” within the meaning of Section 162(m) of the Code.

Committee. "Committee" means the Human Resources & Compensation Committee of the Board and if no such named committee shall be designated by the Board, it shall mean the Committee of the Board most nearly performing the duties of the Human Resources & Compensation Committee as defined at the time of its elimination as a Board Committee.

Committee. “Committee” means the Compensation and Management Development Committee of the Board, or a sub-committee of that Committee.

COMMITTEE. This Plan shall be administered by the Committee.