Annual Financial Report for the period from the 1st of January to the 31st of December 2021 According to article 4 of L. 3556/2007

Representation of the Members of the Board of Directors (according to article 4 par. 2 of L.3556/2007)

The

a. Evangelos Mytilineos, Chairman of the Board of Directors and Chief Executive Officer
b. Spyros Kasdas, Vice — Chairman A’ of the Board of Directors (non-executive member)
c. Dimitrios Papadopoulos, Executive Member of the Board of Directors

CERTIFY

a. the enclosed financial statements of "MYTILINEOS S.A." for the period of 1.1.2021 to 31.12.2021, drawn up in accordance with the applicable accounting standards, reflect in a true manner the assets and liabilities, equity and results of "MYTILINEOS S.A.", as well as of the businesses included in Group consolidation, taken as a whole

and

b. as far as we know, the enclosed report of the Board of Directors reflects in a true manner the development, performance and financial position of "MYTILINEOS S.A.", and of the businesses included in Group consolidation, taken as a whole, including the description of the principal risks and uncertainties.