On January 5, 2024, upon the recommendation of the Nominating, Governance and Sustainability Committee of the Board of Directors of Hexcel Corporation, the Board increased the number of members of the Board from 8 to 10 and appointed James J. Cannon and Dr. Patricia Hubbard, effective immediately, to fill the vacancies created by increasing the size of the Board. In addition, effective as of January 5, 2024, Mr. Cannon has been named to the Compensation Committee of the Board and Dr. Hubbard has been named to the Nominating, Governance and Sustainability Committee of the Board. Mr. Cannon, age 52, is the President and Chief Executive Officer of AM General, a heavy vehicle and contract automotive manufacturer, a position he has held since September 2021.

Prior to joining AM General, Mr. Cannon served as Chief Executive Officer of FLIR Systems Inc. (now known as Teledyne FLIR LLC) prior to its acquisition by Teledyne Technologies, which specializes in the design and production of thermal imaging cameras and sensors, from June 2017 through June 2021. Prior to FLIR Systems, Mr. Cannon spent over 16 years at Stanley Black & Decker Inc. where he held various leadership roles most recently serving as President, Stanley Security for North America and Emerging Markets. Mr. Cannon served on the boards of directors of FLIR Systems from June 2017 to June 2021 and Lydall Inc. from April 2017 to June 2021, where he served on the compensation and nominating and governance committees.

Mr. Cannon also served in the U.S. Army for ten years as an Infantryman and Armor Officer. Mr. Cannon holds a BA in Business Administration and Marketing from University of Tennessee at Chattanooga. Dr. Hubbard, age 56, is the Senior Vice President and Chief Technology Officer of Cabot Corporation (?Cabot?), a specialty chemicals and performance materials company, a position she has held since February 2018.

Prior to joining Cabot, Dr. Hubbard served as Vice President of R&D for the Label and Graphic Materials division in North America of Avery Dennison, an adhesive manufacturing company, from September 2016 to February 2018. Prior to Avery Dennison, she held the role of Vice President of R&D at Avient Corporation and held various R&D roles at General Electric. Dr. Hubbard serves on the board of directors of NAATBatt International, which promotes the development and commercialization of electrochemical energy storage technology and the revitalization of advanced battery manufacturing in North America.

She holds a PhD in polymer science from the University of Akron and a BS in Chemistry from Case Western Reserve University. On January 2, 2024, Dr. Jeffrey A. Graves informed the Board of his intention not to stand for reelection at the Company?s 2024 Annual Meeting of Stockholders. Mr. Graves joined the Board in 2007 and serves on the Compensation Committee and the Nominating, Governance and Sustainability Committee of the Board.

Mr. Graves? decision not to stand for reelection was not the result of any dispute or disagreement with the Company. On January 2, 2024, Dr. Marilyn L. Minus notified the Board of her resignation from the Board effective April 22, 2024, and her resignation from the Nominating, Governance and Sustainability Committee of the Board effective January 5, 2024.

Dr. Minus joined the Board in December 2020. Dr. Minus will join the Company?s leadership team as Senior Vice President, Chief Technology Officer effective April 22, 2024. Upon Dr. Minus?

resignation from the Board, the size of the Board will be reduced to 9.