EX-21.1 5 fy202410k211.htm EX-21.1
Exhibit 21.1
SUBSIDIARIES OF THE REGISTRANT
The following lists the subsidiaries of ATI Inc., excluding those subsidiaries which, considered in the aggregate as a single subsidiary, do not constitute a significant subsidiary.

Name of Subsidiary |  | State or Country of Incorporation
Allegheny Ludlum, LLC |  | Pennsylvania
ATI Specialty Rolled Products Holdings LLC |  | Pennsylvania
ATI Ladish LLC |  | Wisconsin
ATI Operating Holdings, LLC |  | Delaware
ATI Properties, Inc. |  | Delaware
ATI Specialty Materials, LLC |  | Pennsylvania
ATI Specialty Alloys & Components, LLC |  | Delaware