POWER OF ATTORNEY

KNOW ALL BY THESE PRESENTS that the undersigned hereby constitutes and appoints each of Gail E. Lehman, Lauren Shumejda and Heather M. DeGregorio, signing individually, the undersigned’s true and lawful attorney-in-fact to:

(i) prepare, and execute for and on behalf of the undersigned, and submit to the U.S. Securities and Exchange Commission (the “SEC”) a completed Form ID, including amendments thereto, and any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with the SEC of reports required by Section 16(a) of the Securities Exchange Act of 1934 or any rule or regulation of the SEC thereunder.

(ii) prepare, execute and file for and on behalf of the undersigned, in the undersigned’s capacity as an officer and/or director of the Hexcel Corporation (the “Company”) all documents required to be filed by the undersigned pursuant to Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder, including but not limited to Forms 3, 4 and 5, and amendments to such forms, and any other forms or reports the undersigned may be required to file in connection with the undersigned’s ownership, acquisition, or disposition of securities of the Company;

(iii) do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5, or other form or report, and timely file such form or report with the SEC and any stock exchange or similar authority; and

(iv) take any other action of any type whatsoever in connection with the foregoing which such attorney-in-fact believes may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact’s discretion.

The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact’s substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted.

THIS POWER OF ATTORNEY shall remain in full force and effect until the earliest to occur of (i) the revocation, in writing, of this power of attorney by the undersigned, (ii) such time as the undersigned is no longer required to file Forms 3, 4, and 5 with respect to the undersigned’s holdings of and transactions in securities issued by the Company or, (iii) as to each of the attorneys-in-fact, such time as such attorney-in-fact ceases to be an employee of the Company or any of its affiliates. The undersigned hereby revokes all Powers of Attorney prior to the date hereof granting the same or similar power and authority to any other attorney-in-fact employed by the Company or any of its affiliates.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 6th day of May 2025.

/s/ Jeffrey C. Campbell

Jeffrey C. Campbell

CAMPBELL JEFFREY C 4