United States securities and exchange commission logo




                                                                                
                       March 5, 2024

       Jack Guo
       Chief Financial Officer
       Constellium SE
       Washington Plaza
       40-44 rue Washington
       75008 Paris
       France

                                                        Re: Constellium SE
                                                            Form 20-F for the 
fiscal year ended December 31, 2022
                                                            Filed March 14, 
2023
                                                            File No. 001-35931

       Dear Jack Guo:

              We have completed our review of your filing. We remind you that 
the company and its
       management are responsible for the accuracy and adequacy of their 
disclosures, notwithstanding
       any review, comments, action or absence of action by the staff.



                                                                                
                       Sincerely,

                                                                                
                       Division of Corporation Finance
                                                                                
                       Office of Manufacturing