TechnipFMC plc LIMITED POWER OF ATTORNEY (For Executing Forms 3, 4 and 5) Know all by these presents, that the undersigned hereby constitutes and appoints each of Cristina Aalders, Austin Leal, Norma Martinez, Olivia Reed, and Lisa Wang, signing singly, and with full power of substitution, the undersigned’s true and lawful attorney-in-fact to: 1. Execute for and on behalf of the undersigned, in the undersigned’s capacity as an officer or director, or both, of TechnipFMC plc (the “Company”), Forms 3, 4 and 5 in accordance with Section 16(a) of the U.S. Securities Exchange Act of 1934 (the “Exchange Act”), as amended, and the rules thereunder; 2. Do and perform any and all acts necessary or desirable for and on behalf of the undersigned to complete, execute, and timely file Forms 3, 4, or 5 (including any amendments thereto) with the U.S. Securities and Exchange Commission or any other similar authority—such acts to include, without limitation, filing a Form ID or any other documents required for electronic submission via EDGAR—and to act as the undersigned’s account administrator on EDGAR with full authority to perform all requisite actions as the undersigned might or could do; and 3. Take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, 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 Limited Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in- fact may approve in his or her 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 and 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 his or her 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. The undersigned acknowledges that the foregoing attorneys- in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned’s responsibilities to comply with Section 16 of the Exchange Act. This Limited Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, or 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to each of the foregoing attorneys-in-fact. IN WITNESS WHEREOF, the undersigned has caused this Limited Power of Attorney to be executed as of this 24th day of June 2025. /s/ Luana Duffe Name: Luana Duffe

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