EX-21.1 4 fy201510k211.htm EXHIBIT 21.1
Exhibit 21.1
SUBSIDIARIES OF THE REGISTRANT
The following lists the subsidiaries of Allegheny Technologies Incorporated, 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
ALC Funding Corporation |  | Delaware
Allegheny Ludlum, LLC |  | Pennsylvania
ATI Funding Corporation |  | Delaware
ATI Ladish LLC |  | Wisconsin
ATI Operating Holdings, LLC |  | Delaware
ATI Properties, Inc. |  | Delaware
ATI Titanium, LLC |  | Delaware
Oregon Metallurgical, LLC |  | Oregon
TDY Holdings, LLC |  | Delaware
TDY Industries, LLC |  | California