MYTILINEOS HOLDINGS S.A.

General Commercial Register (GEMI) No.: 757001000

ANNOUNCEMENT

Notification of the resolutions of the

1^st Repeat Annual General Meeting of the Shareholders of 18 May 2015

MYTILINEOS HOLDINGS S.A. announces that the 1^st Repeat Annual General Meeting of the Company's Shareholders was held on 18 May 2015 in the Conference Hall located in the offices of the Company's establishment in the Municipality of Maroussi, Attica (8 Artemidos Street), and was attended in conformity with the law by 193 shareholders attending either in person or by proxy and representing 60,816,650  shares, i.e. 52.02 % of the Company's paid-up share capital with right to vote. The Meeting deliberated on the items on the Agenda and, after a vote taken as provided for by the law, resolved as follows:

With 60,816,650 valid votes cast representing 52.02% of the paid-up share capital with right to vote, the Meeting approved unanimously Item 4 on the original Agenda concerning the decrease of the Company's share capital by the amount of eleven million six hundred and ninety-one thousand five hundred and eighty-six euro and twenty cents (€11,691,586.20) by means of a decrease of the nominal value of each share from one euro and seven cents (€1.07) to ninety-seven eurocents (€0.97), with reimbursement to the shareholders of the amount of the decrease in the sum of ten eurocents (€0.10) per share, and the amendment of article 5 of the Company's Articles of Association accordingly. The General Meeting also authorised the Board of Directors to deal with all related matters of a procedural nature regarding the implementation of this resolution.

Further, the Company informs the investing public that pursuant to article 4 of C.L. 2190/1920 the above resolution of the 1^st Repeat Annual General Meeting concerning the amendment of the Company's Articles of Association is subject to approval by the competent Ministry of Economy, Infrastructure, Shipping and Tourism and to the publicity requirements of article 7b of C.L. 2190/1920, as in force. Immediately after the issue of the approval decision as above by the Ministry of Economy, Infrastructure, Shipping and Tourism, the Company shall issue a new announcement regarding the start date for the trading of the Company's shares in the Athens Exchange with the new nominal value of €0.97 per share and without the right to participate in the reimbursement of capital by means of corresponding payments to the shareholders in the sum of ten eurocents (€0.10) per share, as well as the details of the payment to the shareholders of the reimbursed capital.