Exhibit 99.4

Information with respect to Directors and Executive Officers of the Reporting Persons

Name, business address, present principal occupation or employment and place of citizenship of the directors and executive officers of

BPIFRANCE PARTICIPATIONS S.A.

The name, business address and present principal occupation or employment of each of the directors and executive officers of Bpifrance Participations S.A. are set forth below. The business address of each director and executive officer is Bpifrance Participations S.A., 27-31, avenue du Général Leclerc, 94710 Maisons-Alfort Cedex, France. Unless otherwise indicated, each director and executive officer is a citizen of France.

BOARD OF DIRECTORS

Name		Present Principal Occupation or Employment
NICOLAS DUFOURCQ		Director, Chairman, Chief Executive Officer of Bpifrance Participations, and Chief Executive Officer of Bpifrance
MARION CABROL		Director, Investment manager at the Department of strategic holdings at Caisse des Dépôts
OLIVIER RAVEL		Director, Head of M&A within the Department of strategic holdings at Caisse des Dépôts
FREDERIC SAINT-GEOURS		Director, formerly vice chairman of the board of directors of SNCF SA
FRENCH STATE represented by GuilLemette Kreis		Director, Investment manager at the Agence des Participations de l’Etat (French State Shareholding Agency)
CAMILLE SUTTER		Director, head of the Corporate Financing and Development Office, Direction Générale du Trésor (French Treasury)
CHLOE MAYENOBE		Director, Chief Operating Officer at Thunes
CAROLINE PAROT		Director, CEO of Groupe Maisons de Famille
JEROME GAZZANO		Director, deputy Director for Innovation in the General Directorate for Companies of the Ministry of Economy and Finance
PIERRE AUBOUIN		Director, Director of the division Sales and Strategic management of the Portfolio Banque des Territoires

EXECUTIVE OFFICERS

Name		Present Principal Occupation or Employment
NICOLAS DUFOURCQ		Chief Executive Officer
JOSÉ GONZALO		Executive Director
PIERRE BENEDETTI		Chief Financial Officer

Name, business address, present principal occupation or employment and place of citizenship of the directors and executive officers of

CAISSE DES DÉPÔTS

The name, business address and present principal occupation or employment of each of the members of the Management Committee of Caisse des Dépôts are set forth below. The business address of each director and executive officer is Caisse des Dépôts, c/o 56, rue de Lille, 75007 Paris, France. Unless otherwise indicated, each such person is a citizen of France.

MANAGEMENT COMMITTEE

Name		Present Principal Occupation or Employment
OLIVIER SICHEL		Chief Executive Officer of Caisse des Dépôts
NICOLAS DUFOURCQ		Chief Executive Officer of Bpifrance
VIRGINIE CHAPRON-DU JEU		Head of Risk Management of Caisse des Dépôts Group
PIERRE CHEVALIER		Head of Legal Affairs, compliance and Ethics
NATHALIE TUBIANA		Head of finance and Sustainable Development Policy at Caisse des Dépôts
OLIVIER MAREUSE		Deputy Chief Executive Officer Head of Asset Management and Saving Funds
CATHERINE MAYENOBE		Deputy Chief Executive, Operations and Business Transformation Director of Caisse des Dépôts Group
SOPHIE QUATREHOMME		Head of Communications, Corporate Sponsorship and Partnerships
MARIANNE KERMOAL-BERTHOME		Head of Social Policy
ANTOINE SAINTOYANT		Deputy general manager at Caisse des Dépôts and Head of Banque des Territoires
JULIE-AGATHE BAKALOWICZ		Chief Advisor to the Chief Executive Office
AURELIE ROBINEAU-ISRAĒL		Head of Human Resources
AUDREY GIRARD		Head of Strategic Investments

Name, business address, present principal occupation or employment and place of citizenship of the directors and executive officers of

EPIC BPIFRANCE

The name, business address and present principal occupation or employment of each of the directors and executive officers of EPIC Bpifrance are set forth below. The business address of each director and executive officer is EPIC Bpifrance, 27-31, avenue du Général Leclerc, 94710 Maisons-Alfort Cedex, France. Unless otherwise indicated, each director and executive officer is a citizen of France.

DIRECTORS

Name		Present Principal Occupation or Employment
JEAN BENSAÏD		Director, Chairman, Chief Executive Officer of EPIC Bpifrance
ESTELLE DHONT-PELTRAULT		Director, assistant to the Head of the Innovation, Technology Transfer and Regional Action Department in the General Directorate for Research and Innovation
SANDRINE MENARD		Director, Deputy for Corporate Financing and Financial Markets
JOHN PALACIN		Director, Head of the office for the General Secretary for Public Investment
SIMON PINEAU		Director, Head of the office for Energy, Investments, Industry and Innovation in the General Directorate for Budget of the Ministry of Economy and Finance
EMMANUELLE BENHAMOU		Director, Deputy at the audit and accounting department of the Agence des Participations de l'Etat (French State Shareholding Agency)
DAVID HELM		Director, Head of Innovation Financing and Intellectual Property in the General Directorate for Companies of the Ministry of Economy and Finance

Name, business address, present principal occupation or employment and place of citizenship of the directors and executive officers of

BPIFRANCE S.A.

The name, business address and present principal occupation or employment of each of the directors and executive officers of Bpifrance S.A. are set forth below. The business address of each director and executive officer is Bpifrance S.A., 27-31, avenue du Général Leclerc, 94710 Maisons-Alfort Cedex, France. Unless otherwise indicated, each director and executive officer is a citizen of France.

DIRECTORS

Name		Present Principal Occupation or Employment
OLIVIER SICHEL		Director, Chairman of Bpifrance, Chief Executive Officer of Caisse des Dépôts
NICOLAS DUFOURCQ		Director, Chief Executive Officer of Bpifrance and Director, Chairman and Chief Executive Officer of Bpifrance Participations
ANTOINE SAINTOYANT		Director, Deputy general manager at Caisse des Dépôts and Head of Banque des Territoires
ALEXIS ZAJDENWEBER		Director, Chairman of the Agence des Participations de l'Etat (French State Shareholding Agency)
MARIE DELEAGE		Director representing the employees of Bpifrance
PHILIPPE BAYEUX		Director representing the employees of Bpifrance
PIERRE-ANDRE DE CHALENDAR		Director, honorary Chairman of Saint-Gobain
CLAIRE DUMAS		Director, formerly CFO at Société Générale
STEPHANIE SCHAER		Director, Interministerial director of digital affairs
MARION CABROL		Director, Investment manager in the Department of strategic holdings at Caisse des Dépôts
STEPHANIE PERNOD		Director, Vice-president of the Regional Council of Auvergne-Rhône-Alpes, in charge of the economy, relocation, regional preference and digital
NATHALIE TUBIANA		Director, Head of finance and sustainable policy of Caisse des Dépôts Group
CLAIRE CHEREMETINSKI		Director, Deputy Director General of the Treasury
BRICE HUET		Director, General commissioner for sustainable development

CONSTELLIUM SE SCHEDULE 13D/A