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Exhibit 10(f)(6)

SIXTH AMENDMENT TO THE
HOWMET AEROSPACE HOURLY RETIREMENT SAVINGS PLAN
(Restated effective January 1, 2021)
__________________________
Pursuant to Section 20(a) of the HOWMET AEROSPACE HOURLY RETIREMENT SAVINGS PLAN (“Plan”), which provides that the Plan may be amended by action of the Board or Benefits Management Committee, the Plan is amended as described below. Unless specifically stated otherwise, any reference in this Amendment to “Section” is intended to refer to the applicable Section of the Plan. This amendment is effective as of the dates indicated below.
1.    Effective as of March 1, 2025, Schedule B-1 is amended by adding the following location:

Company CodeCompany Description*EE TypeLOCLocation Description

Union Code

Union Description
MatchERIC
T15Tempcraft CorporationHHTRBrecksville, OH

N/A

N/A
1.000Yes
T15Tempcraft CorporationEHTRBrecksville, OH

N/A

N/A
1.000Yes


2.    Effective as of May 1, 2025, Schedule B-1 is amended by adding the following location:

Company CodeCompany Description*EE TypeLOCLocation Description

Union Code

Union Description
MatchERIC
086Howmet Global Fastening Systems Inc.HIDGWaco, Texas

N/A

N/A
1.000Yes
    

3.    Effective as of July 1, 2025, Schedule B-1 of the Plan is amended as follows:

Company CodeCompany Description*EE TypeLOCLocation Description

Union Code

Union Description
MatchERIC
010Howmet AerospaceHCLCChillicothe, OHN/AN/A0.7000Yes
010Howmet AerospaceHPODPonder, TXN/AN/A0.7000Yes
631B&C Castings Inc.HBCCBarberton, OHN/AN/A0.7000Yes
627B&C Research, Inc.HBRTBarberton, OHN/AN/A0.7000Yes



In all other respects, the Plan is unchanged.


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