Announcement of Availability of the Prospectus under article 4 of Law 3401/2005 of “MYTILINEOS HOLDINGS S.A.”

“MYTILINEOS HOLDINGS S.A.” (hereinafter referred to as the “Company” or the “Absorbing Company” or “MYTILINEOS”) announces that, in accordance with EU Regulations 809/2004 and 2016/301 and with Greek Law 3401/2005, the Board of Directors of the Hellenic Capital Markets Commission, in its meeting of 06.07.2017, was informed of the contents of the prospectus under article 4 of Law 3401/2005 (hereinafter referred to as the “Prospectus”), regarding the merger by absorption of the companies “METKA INDUSTRIAL - CONSTRUCTION SOCIÉTÉ ANONYME” (hereinafter referred to as “METKA”), “ALUMINIUM OF GREECE INDUSTRIAL AND COMMERCIAL SOCIÉTÉ ANONYME” (hereinafter referred to as “ALUMINUM OF GREECE”), “PROTERGIA POWER GENERATION AND SUPPLIERS SOCIÉTÉ ANONYME” (hereinafter referred to as “PROTERGIA”) and “PROTERGIA AGIOS NIKOLAOS POWER SOCIÉTÉ ANONYME OF GENERATION AND SUPPLY OF ELECTRICITY” (hereinafter referred to as “PROTERGIA THERMO”) with MYTILINEOS, in accordance with the resolutions of (a) the Annual General Meeting of the Shareholders of MYTILINEOS of 1 June 2017, (b) the Annual General Meeting of the Shareholders of METKA of 1 June 2017, (c) the Annual General Meeting of the Shareholders of ALUMINIUM OF GREECE of 6 June 2017, (d) the Annual General Meeting of the Shareholders of PROTERGIA of 6 June 2017 and the Annual General Meeting of the Shareholders of PROTERGIA THERMO of 6June 2017.

The Prospectus is available to the investor community as of XX.07.2017 in electronic format from the Company's website at http://www.mytilineos.gr/uploads/merger_prospectus.pdf, the website of METKA at http://www.metka.gr/uploads/merger_prospectus.pdf, and the website of the Athens Exchange at http://www.helex.gr/el/web/guest/company-prospectus.

Additionally, the Prospectus will also be available free of charge to the investor community, upon request, from the Company's offices, at 5-7 Patroklou Street, 151 25 Maroussi, Attica.

The foreseen schedule leading up to the commencement of trading for the Company's shares which resulted from the Merger, is as follows:

If any changes occur in the above schedule, the Company will inform the investor community by means of a relevant announcement.

For additional information, Shareholders may contact Mr. Dimitrios Katralis, Investor Relations Officer, tel.: 210 68 77 476 (working days and hours).

Maroussi, 06.07.2017

MYTILINEOS HOLDINGS S.A.