12 JAN 2023

Announcement of Acquisition of own shares

Athens, Greece – January 12, 2023 - Mytilineos S.A. (MYTILINEOS) announces that, according to the resolution of its Extraordinary Shareholders’ Meeting dated 23.03.2022, on 11.1.2023, acquired through the Athens Exchange 10,500 own shares at a weighted average price €20.0720 per share, of an aggregate value €210,756.50. Such acquisitions have been effected through the Athens Exchange member name EUROXX SECURITIES S.A..

Following this acquisition, MYTILINEOS holds in aggregate 4,456,084 own shares, percentage 3.1185% 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.