EX-21 3 aos-20251231xex21.htm EX-21
Exhibit 21
SUBSIDIARIES: The following lists all subsidiaries and affiliates of A. O. Smith Corporation.

Name of Subsidiary |  | Jurisdiction in Which Incorporated
A. O. Smith Water Treatment (North America), Inc. |  | Delaware
A. O. Smith Water Treatment (North America) Holdings, Inc. |  | Delaware
SICO Acquisition, LLC |  | Delaware
Mineral-Right, Inc. |  | Kansas
American Water Heater Company |  | Nevada
Hague Europe, LLC |  | Ohio
Lochinvar, LLC |  | Tennessee
State Industries, LLC. |  | Tennessee
A. O. Smith Holdings (Barbados) SRL |  | Barbados
A. O. Smith Bangladesh Private Limited |  | Bangladesh
A. O. Smith Enterprises Ltd. |  | Canada
A. O. Smith (China) Environmental Products Co., Ltd. |  | China
A. O. Smith (China) Investment Co., Ltd. |  | China
A. O. Smith (China) Water Heater Co., Ltd. |  | China
A. O. Smith (China) Water Products Co., Ltd. |  | China
A. O. Smith (Shanghai) HVAC Co., Ltd. |  | China
A. O. Smith L’eau chaude S.a.r.l. |  | France
Waterboss Europe, SARL |  | France
A. O. Smith (Hong Kong) Limited |  | Hong Kong SAR
A. O. Smith India Water Products Private Limited |  | India
Products de Agua, S. de R.L. de C.V. |  | Mexico
A.O. Smith Water Products SL (Private) Limited |  | Sri Lanka
A.O. Smith Holdings I B.V. |  | The Netherlands
A.O. Smith Holdings II B.V. |  | The Netherlands
A.O. Smith Holdings III B.V. |  | The Netherlands
A.O. Smith International Holdings B.V. |  | The Netherlands
A.O. Smith Products v.o.f. |  | The Netherlands
A.O. Smith Water Products Company B.V. |  | The Netherlands
A. O. Smith Water FZE |  | United Arab Emirates
Lochinvar Limited |  | United Kingdom
A. O. Smith Vietnam Company Limited |  | Vietnam