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 its shareholder VIOHALCO S.A. on 22/10/2008, that on 21/10/2008 VIOHALCO S.A. held, directly and indirectly via its subsidiaries ALCOMET S.A. and DIATOUR S.A., 60,709,766 voting rights or 63.15% out of the total Company?s voting rights (96,129,491), versus 57,661,930 voting rights (59.98%) that it held at the last notification as at 16/7/2008. ALCOMET S.A. currently owns 2,409,862 voting rights or 2.51% of the share capital and DIATOUR S.A. owns 2,726,376 voting rights or 2.84% of the share capital.