November 18, 2013

ANNOUNCEMENT

Notification on the Change of the

Participation in a Listed Company

SIDENOR SA informs the investment community that, pursuant to Law 3556/2007, to the Decision 1/434/3.7.2007, the Circular 33 of the Hellenic Capital Markets Commission, the ATHEX Rules and Regulations and following the notification received by VIOHALCO S.A. and VIOHALCO SA/NV on 18/11/2013, that on 16/11/2013 VIOHALCO S.A. did not held any voting rights, versus 74.61% (71,810,557 voting rights) held before, directly or indirectly, as a result of the total succession by VIOHALCO SA/NV.

VIOHALCO SA/NV currently holds directly and indirectly via its subsidiaries ALCOMET S.A. and DIATOUR S.A., 72,674,137 voting rights, thus 75.51% out of the total Company's voting rights.