MYTILINEOS S.A.

Announcement pursuant to Law 3556/2007

MYTILINEOS S.A. (the “Company”) pursuant to the provisions of Law 3556/2007 and Regulation (EU) No 596/2014 of the European Parliament and of the Council on market abuse, announces that Mr. Elenos Karaindros Chief Strategy and M&A Officer of the Company, according to its notification towards the Company, sold on 11.9.2023, 5,000 common shares of the Company of a total value of Euro 179,708.00.