ArcelorMittal South Africa Limited (Incorporated in the Republic of South Africa) (Registration Number 1989/002164/06) Share Code: ACL ISIN: ZAE000134961 (ArcelorMittal South Africa or “the Company”) APPOINTMENT OF CHIEF FINANCIAL OFFICER AND EXECUTIVE DIRECTOR In compliance with paragraph 3.59(a) of the Listings Requirements of the JSE Limited, shareholders are advised that after following an extensive recruitment process, the board of directors (Board) has approved the appointment of Mr. Siphamandla Mthethwa as Chief Financial Officer (CFO) and Executive Director of ArcelorMittal South Africa with effect from 1 July 2023, or sooner if circumstances permit. Mr Mthethwa is a qualified CA(SA) and has completed the Advanced Management Programme at the Harvard Business School and the CFO Executive Programme at Stanford University Graduate School of Business. He has more than 20 years financial experience, which includes significant experience as a financial executive with broad strategic and financial leadership responsibilities. During his career he has fulfilled senior management and executive leadership roles and is currently the CFO and executive director at the Airports Company South Africa SOC Ltd (ACSA). Ms Suretha van Wyk, who acted as Interim CFO pending the appointment of a permanent CFO, will accordingly continue in that role and step down when Mr. Mthethwa assumes his position. The Board congratulates Mr Mthethwa on his appointment and looks forward to his contribution. 3 April 2023 Vanderbijlpark Works For further information please contact: Mr Tami Didiza Group Manager: Stakeholder Engagement and Communications Tel: (016) 889 2352 Sponsor to ArcelorMittal South Africa Limited Absa Bank Limited (acting through its Corporate and Investment Banking division)