11 MAY 2022

Announcement of Acquisition of own shares

Athens, Greece – May 11, 2022 - Mytilineos S.A. (MYTILINEOS) announces that, according to the resolution of its Extraordinary Shareholders’ Meeting dated 23.03.2022, on 10.5.2022, acquired through the Athens Exchange 22,000 own shares at a weighted average price €15.9737 per share, of an aggregate value €351,420.48. Such acquisitions have been effected through the Athens Exchange member name EUROXX SECURITIES S.A..

Following this acquisition, MYTILINEOS holds in aggregate 4,329,386 own shares, percentage 3.0298% of the total number of shares issued by it.

This announcement is issued pursuant to Regulation (EU) 596/2014 and Delegated Regulation (EU) 2016/1052.