SIDENOR HOLDINGS S.A.

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 its shareholder JPMorgan Chase & Co. dated 21/1/2008, the shareholder proceeded with the sale of shares on 16/1/2008 as follows:
JPMorgan Chase & Co. owns 4.93% (or 4,746,377 voting rights) of the total outstanding voting rights of Sidenor SA (or 96,129,491 voting rights) versus 5.05% (or 4,854,793 voting rights) that it held before the sale.