| Howmet Castings & Services, Inc. | Indiana | state | 2014 | $4,000,000 | | tax credit/rebate |
| Howmet Castings & Services, Inc. | Indiana | state | 2019 | $1,800,000 | | tax credit/rebate |
| Firth Rixson Forgings, LLC | Georgia | state | 2010 | $1,000,000 | | grant |
| Alcoa Howmet | Michigan | state | 2015 | $935,000 | | tax credit/rebate |
| RTI International Metals, Inc. | Virginia | state | 2008 | $633,168 | | grant |
| Howmet Castings & Services, Inc. | Tennessee | state | 2019 | $625,000 | | grant |
| Aloca Howmet | Virginia | state | 2009 | $500,000 | | grant |
| Howmet Castings & Services, Inc. | Indiana | state | 2014 | $450,000 | | tax credit/rebate |
| Alcoa Howmet | Virginia | state | 2014 | $450,000 | | grant |
| HOWMET AEROSPACE INC. | Washington | state | 2018 | $322,355 | | tax credit/rebate |
| Alcoa Howmet | Michigan | state | 2015 | $285,000 | | grant/loan hybrid program |
| HOWMET AEROSPACE INC. | Washington | state | 2019 | $279,633 | | tax credit/rebate |
| Firth Rixson Forgings LLC | Georgia | state | 2012 | $250,000 | | grant |
| Firth Rixson, Inc. dba Monroe Forgings | New York | state | 2010 | $243,000 | | enterprise zone |
| Alcoa Howmet | Michigan | state | 2015 | $206,000 | | property tax abatement |
| Howmet Castings & Services, Inc. | Indiana | state | 2014 | $200,000 | | training reimbursement |
| Alcoa Howmet | Virginia | state | 2014 | $200,000 | | grant |
| Alcoa Howmet | Virginia | state | 2015 | $200,000 | | grant |
| RTI Martinsville, Inc. | Virginia | state | 2014 | $181,643 | | enterprise zone |
| RTI International Metals Inc | Pennsylvania | state | | $180,000 | | tax credit/rebate |
| Firth Rixson Inc. dba Monroe Forgings | New York | state | 2007 | $133,321 | | enterprise zone |
| Howmet Castings & Services, Inc. | Virginia | state | 2018 | $103,064 | | enterprise zone |
| RTI Martinsville, Inc. | Virginia | state | 2016 | $80,000 | | grant |
| Howmet Castings & Services, Inc. | Virginia | state | 2017 | $51,896 | | enterprise zone |
| RTI International Metals Inc | Pennsylvania | state | | $50,000 | | grant |
| Alcoa Howmet | Michigan | state | 2015 | $46,000 | | tax credit/rebate |
| Firth Rixson, Inc. dba Monroe Forgings | New York | state | 2011 | $45,662 | | enterprise zone |
| Firth Rixson, Inc. dba Monroe Forgings | New York | state | 2013 | $25,441 | | enterprise zone |
| Firth Rixson, Inc. dba Monroe Forgings | New York | state | 2014 | $25,441 | | enterprise zone |
| Firth Rixson, Inc. dba Monroe Forgings | New York | state | 2009 | $25,262 | | enterprise zone |
| Firth Rixson Inc. dba Monroe Forgings | New York | state | 2006 | $21,840 | | enterprise zone |
| Firth Rixson, Inc. dba Monroe Forgings | New York | state | 2005 | $20,887 | | enterprise zone |
| RTI Martinsville, Inc. | Virginia | state | 2018 | $20,712 | | enterprise zone |
| Firth Rixson, Inc. dba Monroe Forgings | New York | state | 2012 | $16,250 | | enterprise zone |
| Howmet Aerospace Inc. | Washington | state | 2020 | $14,936 | | tax credit/rebate |
| Howmet Castings & Services, Inc. | Virginia | state | 2019 | $14,619 | | enterprise zone |
| RTI Martinsville, Inc. | Virginia | state | 2017 | $12,928 | | enterprise zone |
| RTI Martinsville, Inc. | Virginia | state | 2014 | $11,176 | | enterprise zone |
| RTI Martinsville, Inc. | Virginia | state | 2015 | $10,824 | | enterprise zone |
| RTI Martinsville, Inc. | Virginia | state | 2016 | $9,839 | | enterprise zone |
| Firth Rixson, Inc. dba Monroe Forgings | New York | state | 2016 | $3,727 | | enterprise zone |
| HOWMET CORPORATION | Michigan | local | 1997 | undisclosed | | property tax abatement |
| HOWMET CORPORATION | Michigan | local | 1997 | undisclosed | | property tax abatement |
| HOWMET CORPORATION | Michigan | local | 1998 | undisclosed | | property tax abatement |
| HOWMET CORPORATION | Michigan | local | 1998 | undisclosed | | property tax abatement |
| HOWMET CORPORATION | Michigan | local | 1999 | undisclosed | | property tax abatement |
| Howmet Corporation | Tennessee | state | 2008 | undisclosed | | training reimbursement |
| Alcoa Howmet & Service Inc. | Texas | state | 2010 | undisclosed | | training reimbursement |
| HOWMET CORPORATION - ALCOA | Michigan | local | 2007 | undisclosed | | property tax abatement |
| Howmet Castings & Services, Inc. | Texas | state | 2018 | undisclosed | | enterprise zone |
| Howmet Corporation | Michigan | state | 1992 | undisclosed | | property tax abatement |
| Howmet Corporation Ticast | Michigan | state | 1990 | undisclosed | | property tax abatement |
| Howmet Corporation-whitehall | Michigan | state | 1995 | undisclosed | | property tax abatement |
| Howmet Turbine Components | Michigan | state | 1982 | undisclosed | | property tax abatement |
| Howmet Turbine Components | Michigan | state | 1987 | undisclosed | | property tax abatement |
| Howmet Turbine Corp | Michigan | state | 1975 | undisclosed | | property tax abatement |
| Howmet Turbine Corp. | Michigan | state | 1976 | undisclosed | | property tax abatement |
| Howmet Turbine Corp. | Michigan | state | 1977 | undisclosed | | property tax abatement |
| Howmet Turbine Corp. | Michigan | state | 1983 | undisclosed | | property tax abatement |
| Howmet Turbine Corp. | Michigan | state | 1985 | undisclosed | | property tax abatement |
| Howmet Corporation | Michigan | state | 2000 | undisclosed | | property tax abatement |
| Howmet Corporation Whitehall Cast. | Michigan | state | 1990 | undisclosed | | property tax abatement |
| Howmet Turbine Components Corp | Michigan | state | 1976 | undisclosed | | property tax abatement |
| Howmet Turbine Components Corp | Michigan | state | 1977 | undisclosed | | property tax abatement |
| Howmet Turbine Components Corp | Michigan | state | 1980 | undisclosed | | property tax abatement |
| Howmet Turbine Components Corp | Michigan | state | 1986 | undisclosed | | property tax abatement |
| Howmet Turbine Components Corp. | Michigan | state | 1987 | undisclosed | | property tax abatement |
| Howmet Casting & Services | Tennessee | state | 2021 | undisclosed | | property tax abatement |
| Howmet Casting & Services | Tennessee | state | 2021 | undisclosed | | property tax abatement |
| Howmet Casting & Services | Tennessee | state | 2021 | undisclosed | | property tax abatement |
| Howmet Casting & Services | Tennessee | state | 2022 | undisclosed | | property tax abatement |
| Howmet Casting & Services | Tennessee | state | 2022 | undisclosed | | property tax abatement |
| Howmet Casting & Services | Tennessee | state | 2022 | undisclosed | | property tax abatement |
| Howmet Castings & Services, Inc. | Texas | state | 2024 | undisclosed | | enterprise zone |
