Vallourec

Board/Management Information • Nov 7, 2025

VALLOUREC ANNOUNCES A TRANSITION IN ITS FINANCIAL MANAGEMENT

Meudon (France), November, 7th 2025 – Vallourec, a world leader in premium seamless tubular solutions, announces that its Chief Financial Officer, Sascha Bibert, has decided to leave the Group to pursue an opportunity in Germany. Sascha Bibert will leave the Group in December after a transition period with his successor. Mr. Bibert's replacement, has already been identified and will join Vallourec's Executive Committee upon taking up his position in early December.

Philippe Guillemot, Chairman of the Board of Directors and CEO of the Vallourec Group, stated: "Together with the entire Executive Committee, I would like to warmly thank Sascha for his dedication and professionalism over the past four years. Sascha has contributed to implementing the New Vallourec plan, which has enabled the Group to regain its position as leader in our industry. I wish him every success in his future endeavors."

About Vallourec

Vallourec is a world leader in premium tubular solutions for the energy markets and for demanding industrial applications such as oil & gas wells in harsh environments, new generation power plants, challenging architectural projects, and high-performance mechanical equipment. Vallourec's pioneering spirit and cutting-edge R&D open new technological frontiers. With close to 13,000 dedicated and passionate employees in more than 20 countries, Vallourec works hand-in-hand with its customers to offer more than just tubes: Vallourec delivers innovative, safe, competitive and smart tubular solutions, to make every project possible.

Listed on Euronext in Paris (ISIN code: FR0013506730, Ticker VK), Vallourec is part of the CAC Mid 60, SBF 120 and Next 150 indices and is eligible for Deferred Settlement Service. In the United States, Vallourec has established a sponsored Level 1 American Depositary Receipt (ADR) program (ISIN code: US92023R4074, Ticker: VLOWY). Parity between ADR and a Vallourec ordinary share has been set at 5:1.

For further information, please contact:

Investors relations:

Connor Lynagh Tel : +1 (713) 409-7842 connor.lynagh@vallourec.com

Individual shareholders:

Toll Free Number (From France): 0 805 65 10 10

actionnaires@vallourec.com

Press relations: Taddeo

Romain Grière

Tel : +33 (0)7 86 53 17 29 romain.griere@taddeo.fr

Nicolas Escoulan

Tel : +33 (0)6 42 19 14 74 nicolas.escoulan@taddeo.fr