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                          June 18, 2024

       Mary Dean Hall
       Executive Vice President and Chief Financial Officer
       Ingevity Corp
       4920 O'Hear Avenue Suite 400
       North Charleston, SC 29405

                                                        Re: Ingevity Corp
                                                            Form 10-K for the 
Fiscal Year Ended December 31, 2023
                                                            Response dated May 
6, 2024
                                                            File No. 001-37586

       Dear Mary Dean Hall:

              We have reviewed your May 6, 2024 response to our comment letter 
and have the
       following comment.

              Please respond to this letter within ten business days by 
providing the requested
       information or advise us as soon as possible when you will respond. If 
you do not believe a
       comment applies to your facts and circumstances, please tell us why in 
your response.

               After reviewing your response to this letter, we may have 
additional comments. Unless
       we note otherwise, any references to prior comments are to comments in 
our April 23, 2024
       letter.

       Form 10-K for the Fiscal Year Ended December 31, 2023

       Item 7. Management's Discussion and Analysis of Financial Condition and 
Results of Operations
       Reconciliation of Net Income to Adjusted EBITDA, page 37

   1.                                                   We reference your 
response to prior comment 5. It appears the non-
                                                        GAAP adjustment related 
to the $19.7 million of inventory charges represent normal
                                                        operating expenses 
necessary to operate your business and are not consistent with the
                                                        guidance in Question 
100.01 of the Division of Corporation Finance's Compliance
                                                        & Disclosure 
Interpretations on Non-GAAP Financial Measures. Please revise future
                                                        filings to no longer 
exclude these adjustments from any non-GAAP performance measure.
 Mary Dean Hall
Ingevity Corp
June 18, 2024
Page 2



       Please contact Kristin Lochhead at 202-551-3664 or Li Xiao at 
202-551-4391 if you have
questions regarding comments on the financial statements and related matters.



                                                         Sincerely,
FirstName LastNameMary Dean Hall
                                                         Division of 
Corporation Finance
Comapany NameIngevity Corp
                                                         Office of Industrial 
Applications and
June 18, 2024 Page 2                                     Services
FirstName LastName