<img src="https://ml-eu.globenewswire.com/Resource/Download/b63cd58c-c7c3-4ece-b5f9-2f69f23244cd?size=2" nborder="0" align="left" hspace="5" vspace="5" title="logo.jpg" alt="ArcelorMittal S.A."/>19 May 2026, 08:00 CET ArcelorMittal SA (“ArcelorMittal” or “the Company”) today announces the successful pricing of its secondary offering of shares in Vallourec SA (“Vallourec”). ArcelorMittal has sold approximately 23.9 million shares in Vallourec, representing approximately 10.0% of Vallourec’s outstanding share capital, at an offer price of EUR 24.00 per share, raising gross proceeds of approximately US$667 million. The transaction was conducted via an accelerated bookbuilding process to institutional investors. The transaction reflects ArcelorMittal’s disciplined approach to capital allocation and portfolio management. The sale proceeds will be returned to ArcelorMittal shareholders via the Company’s ongoing share buyback programme. ArcelorMittal remains supportive of Vallourec’s strategy and management team and continues to see value in the company. Following the settlement of the transaction, ArcelorMittal will retain approximately 17.3% of Vallourec’s share capital and will continue to hold one seat on Vallourec’s Board of Directors. Settlement is expected to occur on or around 21 May 2026.   ArcelorMittal has agreed to a lock-up in its remaining stake in Vallourec for 90 calendar days following the settlement date, subject to customary carve-outs. Commenting, Genuino Christino, Chief Financial Officer, ArcelorMittal, said: “This step underlines our commitment to deploying capital in a way that delivers clear, measurable returns for shareholders. By realising value and returning the proceeds to shareholders through buybacks, we are converting a strong investment outcome into immediate, tangible benefits. “More broadly, it is another example of how we have consistently executed our strategy in recent years - investing in high-return opportunities to develop ArcelorMittal into a more resilient, higher-quality business, capable of delivering sustainable value for shareholders through the cycle.” ArcelorMittal <a href="https://www.globenewswire.com/Tracker?data=ZAdeTanCa6_3H7HWAIY2qh2oH6ufaKzPdAvQKeOoeazekeYJ43ttRjOliRpr4Ddz4f-7wQcRcGEzL3JCzDRVyS5qwinXpxIwVE7T-AKXWYj5Do1z-OxQoX4XyBmVYrbIg3-TKgYQrQh9haWhIQDw8J2uQg3u8NhDL8JGabnKiPxjwwYbKfERPm3di8kFeJL0qDeg88EbA8cxMaqcgugxvAQ9QI2gin7uT-4efTd4nxTmgjl08Fa-ZekBvQ_FMMyu0TT6kvfPM-pzzFclOpBXvg==" rel="nofollow" target="_blank" title="acquired its initial shareholding in Vallourec in 2024">acquired its initial shareholding in Vallourec in 2024</a> and continues to view the company as a high-quality business with a strong market position. ENDS About ArcelorMittal   ArcelorMittal is one of the world’s leading integrated steel and mining companies with a presence in 60 countries and primary steelmaking operations in 14 countries. It is the largest steel producer in Europe, among the largest in the Americas, and has a growing presence in Asia through its joint venture AM/NS India. ArcelorMittal sells its products to a diverse range of customers including the automotive, engineering, construction and machinery industries, and in 2025 generated revenues of $61.4 billion, produced 55.6 million metric tonnes of crude steel and 48.8 million tonnes of iron ore. Our purpose is to produce smarter steels for people and planet. Steels made using innovative processes which use less energy, emit significantly less carbon and reduce costs. Steels that are cleaner, stronger and reusable. Steels for the renewable energy infrastructure that will support societies as they transform through this century. With steel at our core, our inventive people and an entrepreneurial culture at heart, we will support the world in making that change.   ArcelorMittal is listed on the stock exchanges of New York (MT), Amsterdam (MT), Paris (MT), Luxembourg (MT) and on the Spanish stock exchanges of Barcelona, Bilbao, Madrid and Valencia (MTS).     <a href="https://www.globenewswire.com/Tracker?data=IeSdBgzynS86He7k9f8rt_yMeeiccyS--RQj6GosQ6q-3YPzx_b3jkpQTsYi1yO7kKnyTqNmwC8mbO1fkUpg7E6PgwWL_BNFmk5F4hZNRhmFXlI8TolokmXZnZUiGTi6cACXIksE1JSbtL5yA895AQ==" rel="nofollow" target="_blank" title="">http://corporate.arcelormittal.com/</a>   <table style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; border-collapse: collapse; width:547px; border-collapse:collapse ;"><tr><td colspan="2" style="width:518.297px;;text-align: justify ; vertical-align: middle; vertical-align: middle ; ">ArcelorMittal Investor Relations contact information</td></tr><tr><td style="width:216.672px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; ">General </td><td style="width:301.625px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; ">+44 20 7543 1128 </td></tr><tr><td style="width:216.672px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; ">Retail </td><td style="width:301.625px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; ">+44 20 3214 2893 </td></tr><tr><td style="width:216.672px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; ">Bonds/Credit </td><td style="width:301.625px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; ">+33 171 921 026 </td></tr><tr><td style="width:216.672px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; ">E-mail </td><td style="width:301.625px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; "><a href="mailto:investor.relations@arcelormittal.com" rel="nofollow" target="_blank" title="investor.relations@arcelormittal.com">investor.relations@arcelormittal.com</a> </td></tr></table> <table style="border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; border-collapse: collapse; width:548px; border-collapse:collapse ;"><tr><td colspan="2" style="width:519.297px;;vertical-align: middle ; ">ArcelorMittal Corporate Communications contact information</td></tr><tr><td style="width:226.078px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; ">Paul Weigh </td><td style="width:293.219px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; "> </td></tr><tr><td style="width:226.078px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; ">Tel: </td><td style="width:293.219px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; ">+44 20 3214 2419 </td></tr><tr><td style="width:226.078px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; ">E-mail</td><td style="width:293.219px;;border-top: solid black 1pt ; border-right: solid black 1pt ; border-bottom: solid black 1pt ; border-left: solid black 1pt ; text-align: justify ; vertical-align: middle; vertical-align: middle ; "><a href="mailto:press@arcelormittal.com" rel="nofollow" target="_blank" title="press@arcelormittal.com">press@arcelormittal.com</a> </td></tr></table> <img alt="" src='https://ml-eu.globenewswire.com/media/MDEwMTRkMjQtYWI1ZC00YWY3LTk5MWYtMjM3YWFiMDYxZDdmLTEwMTM3MTUtMjAyNi0wNS0xOS1lbg==/tiny/ArcelorMittal-S-A-.png' referrerpolicy='no-referrer-when-downgrade' />

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ArcelorMittal unlocks value through partial sell-down of its shareholding in Vallourec with proceeds allocated to share buybacks

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