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Exhibit 21
SUBSIDIARIES OF THE REGISTRANT
(As of December 31, 2023)
 
NameState or
Country of
Organization
Howmet Aerospace Inc.Delaware
Howmet Domestic LLCDelaware
Howmet Securities LLCDelaware
Howmet International Inc.Delaware
Howmet Holdings CorporationDelaware
Howmet Castings & Services, Inc.Delaware
Howmet CorporationDelaware
Howmet International Holding Company LLCDelaware
Howmet Luxembourg S.à r.l.Luxembourg
Howmet Holdings LimitedUnited Kingdom
Howmet-Köfém KftHungary
Howmet Global Treasury Services S.a.r.l.Luxembourg
FR Acquisitions Corporation Europe LimitedUnited Kingdom
Howmet Europe Commercial SASFrance
Cordant Technologies Holding CompanyDelaware
Howmet Global Fastening Systems 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.