DISCLOSURE OF TRADING IN OWN SHARES FROM 01/08/2026 TO 01/09/2026

DISCLOSURE OF TRADING IN OWN SHARES

FROM 01/08/2026 TO 01/09/2026

Meudon (France), on January 12, 2026

Share buyback program (ISIN Code: FR0013506730) implemented in accordance with the authorization given by the Shareholders' General Meeting of Vallourec SA (LEI: 969500P2Q1B47H4MCJ34) on May 22, 2025 (ninth resolution).

Day of the transaction	Total daily volume (number of shares)	Daily weighted average purchase price of the shares (€)	Market Code
01/08/2026	77 000	16,3881	XPAR
01/08/2026	38 000	16,4233	CEUX
01/08/2026	5 000	16,4204	TQEX
01/08/2026	5 000	16,4271	AQEU
01/09/2026	38 994	16,8053	CEUX
01/09/2026	5 000	16,8164	AQEU
01/09/2026	5 000	16,8100	TQEX
01/09/2026	71 006	16,7784	XPAR
	245 000	16,5919

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:

Investor relations: Connor Lynagh Tel: [phone] [e-mail]	Press relations: Taddeo Romain Grière Tel: [phone] [e-mail]
Individual shareholders: Toll Free number (From France): 0 805 65 10 10 [e-mail]	Nicolas Escoulan Tel: [phone] [e-mail]

Attachment

• Vallourec - CP (ENG) - Disclosure of trading in own share from January 8 to January 9, 2026