Exhibit 21.1
SUBSIDIARIES OF THE REGISTRANT
| Name | State or Country of Organization |
| Alti Forge Holding S.a.r.l. | Switzerland |
| Alti Forge JSC | Russian Federation |
| Alumax LLC | Tennessee |
| Alumax U.K. Limited | United Kingdom |
| Arconic Aluminium Deutschland Internationale VmbH & Co. | Germany |
| Arconic Architectural Products LLC | Delaware |
| Arconic Architectural Products SAS | France |
| Arconic Austria Services GmbH | Austria |
| Arconic Automotive Castings G.P. | Michigan |
| Arconic China Investment Company Ltd. | China |
| Arconic Closure Systems International UK Limited | United Kingdom |
| Arconic Davenport LLC | Iowa |
| Arconic France Holding SAS | France |
| Arconic GmbH | Germany |
| Arconic Holding GmbH | Germany |
| Arconic Hungary Finance Kft | Hungary |
| Arconic India Private Ltd. | India |
| Arconic International Asia Ltd. | Hong Kong |
| Arconic Italia S.r.l. | Italy |
| Arconic Korea, Ltd. | South Korea |
| Arconic Kunshan Aluminum Products Company, Ltd. | China |
| Arconic Lafayette LLC | Indiana |
| Arconic Lancaster Corp. | Delaware |
| Arconic Manufacturing Gb Limited | United Kingdom |
| Arconic Massena LLC | New York |
| Arconic Nederland Holding B.V. | Netherlands |
| Arconic Participacoes Ltda. | Brazil |
| Arconic Qinhuangdao Aluminum Industries Co., Ltd. | China |
| Arconic Service LLC | Pennsylvania |
| Arconic Technology LLC | Pennsylvania |
| Arconic Tennessee LLC | Tennessee |
| Arconic Tube Specialties Inc. | Pennsylvania |
| Arconic UK Finance | United Kingdom |
| Arconic UK Holdings Limited | United Kingdom |
| Halethorpe Extrusions, Inc. | Delaware |
| Kawneer Aluminium Deutschland, Inc. | Germany |
| Kawneer Commercial Windows LLC | Pennsylvania |
| Kawneer Company Canada Limited | Canada |
| Kawneer Company, Inc. | Delaware |
| Kawneer Espana S.L. | Spain |
| Kawneer France S.A. | France |
| Kawneer Nederland B.V. | Netherlands |
| Kawneer U.K. Limited | United Kingdom |
| OOO Arconic Rus Investment Holdings | Russian Federation |
| Pimalco, Inc. | Arizona |
| Wexal International Limited | Ireland |
| ZAO Arconic SMZ | Russian Federation |