<img src="https://ml-eu.globenewswire.com/Resource/Download/d0facaa4-8800-44b0-b9d5-4aebb94fa89a?size=2" nborder="0" align="left" hspace="5" vspace="5" title="VALLOUREC" alt="VALLOUREC"/>DISCLOSURE OF TRADING IN OWN SHARES FROM 06/29/2026 TO 06/30/2026 Meudon (France), on July 6th, 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 21, 2026 (twelfth resolution). <table align="center" style="border-collapse: collapse; border-collapse:collapse ;"><tr><td style="width:151px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">  Day of the transaction  </td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">Total daily volume (number of shares)</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">Daily weighted average purchase price of the shares (€)</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">Market Code </td></tr><tr><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">06/29/2026</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">95 727</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">20,6284</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">CEUX</td></tr><tr><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">06/29/2026</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">173 965</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">20,6276</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">XPAR</td></tr><tr><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">06/29/2026</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">17 413</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">20,6298</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">AQEU</td></tr><tr><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">06/29/2026</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">13 196</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">20,6342</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">TQEX</td></tr><tr><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">06/30/2026</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">174 716</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">20,5194</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">XPAR</td></tr><tr><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">06/30/2026</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">94 085</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">20,4865</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">CEUX</td></tr><tr><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">06/30/2026</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">13 391</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">20,4902</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">TQEX</td></tr><tr><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">06/30/2026</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">17 206</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">20,4936</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">AQEU</td></tr><tr><td style="width:151px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; "> </td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">599 699</td><td style="width:151px;;text-align: center ; vertical-align: middle; border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; ">20,5674</td><td style="width:151px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; vertical-align: middle ; "> </td></tr></table> About Vallourec Vallourec is a world leader in premium tubular solutions for the energy markets and for demanding industrial applications such as oil &amp; 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&amp;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: <table style="border-collapse: collapse; width:555.15pt; border-collapse:collapse ;"><tr><td style="width:378px;;text-align: justify ; vertical-align: middle; vertical-align: top ; text-align: justify ; vertical-align: middle; ">Investor relations Connor Lynagh Tel: +1 (713) 409-7842 <a href="mailto:connor.lynagh@vallourec.com" rel="nofollow" target="_blank" title="connor.lynagh@vallourec.com">connor.lynagh@vallourec.com</a></td><td style="width:362.2px;;text-align: justify ; vertical-align: middle; vertical-align: top ; text-align: justify ; vertical-align: middle; ">Press relations Taddeo - Romain Grière Tel: +33 (0) 7 86 53 17 29  <a href="mailto:romain.griere@taddeo.fr" rel="nofollow" target="_blank" title="romain.griere@taddeo.fr">romain.griere@taddeo.fr</a>  </td></tr><tr><td style="width:378px;;text-align: justify ; vertical-align: middle; vertical-align: top ; text-align: justify ; vertical-align: middle; ">Individual shareholders Toll Free Number (from France): 0 805 65 10 10 <a href="mailto:actionnaires@vallourec.com" rel="nofollow" target="_blank" title="actionnaires@vallourec.com">actionnaires@vallourec.com</a>  </td><td style="width:362.2px;;text-align: justify ; vertical-align: middle; vertical-align: top ; text-align: justify ; vertical-align: middle; ">Nicolas Escoulan Tel: +33 (0)6 42 19 14 74 <a href="mailto:nicolas.escoulan@taddeo.fr" rel="nofollow" target="_blank" title="nicolas.escoulan@taddeo.fr">nicolas.escoulan@taddeo.fr</a></td></tr></table>
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VALLOUREC : DISCLOSURE OF TRADING IN OWN SHARES FROM 06/29/2026 TO 06/30/2026

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