EX-21 22 ex21_2017.htm EXHIBIT 21
Exhibit 21
SUBSIDIARIES OF THE REGISTRANT
(As of December 31, 2017)

Name |  | State or Country of Organization
Arconic Domestic LLC | Delaware
Arconic Securities LLC | Delaware
Howmet International Inc. | Delaware
Howmet Holdings Corporation | Delaware
Howmet Corporation | Delaware
Howmet Castings & Services, Inc. | Delaware
Arconic International Holding Company LLC | Delaware
Arconic Luxembourg S.à r.l. | Luxembourg
Arconic Inversiones España S.L. | Spain
Arconic Holding GmbH | Germany
AOS Beteiligungs GmbH | Germany
Arconic Inversiones Internacionales S.L. | Spain
Arconic-Köfém Kft | Hungary
OOO Arconic Rus Investment Holdings | Russia
ZAO Arconic SMZ | Russia
Howmet SAS | France
Arconic Holding France SAS | France
Arconic Global Treasury Services S.a.r.l. | Luxembourg
Arconic UK Holdings Limited | United Kingdom
Arconic Manufacturing (G.B.) Limited | United Kingdom
Alumax LLC | Delaware
Alumax Mill Products, Inc. | Delaware
Kawneer Company, Inc. | Delaware
Cordant Technologies Holding Company | Delaware
Arconic Global Fasteners & Rings, Inc. | Delaware
Huck International Inc. | Delaware
FR Acquisition Corporation (US), Inc. | Delaware
JFB Firth Rixson Inc. | Delaware

The names of particular subsidiaries have been omitted because, considered in the aggregate as a single subsidiary, they would not constitute, as of the end of the year covered by this report, a “significant subsidiary” as that term is defined in Regulation S-X under the Securities Exchange Act of 1934.