Athens, March 20, 2012

ANNOUNCEMENT

ANNOUNCEMENT DATE OF THE FY 2011

FINANCIAL RESULTS

SIDENOR S.A. informs the investment community that it will release its FY 2011 Financial Results on Thursday March 29, 2012, while at the same day there will be an analyst conference call regarding these results.

The Annual Financial Report and the Data and Information of the period 1/1/2011 – 31/12/2011, as well as the respective press release will also be posted on the company's website www.sidenor.gr, as well as on the ATHEX website www.athex.gr.

Note: More information regarding SIDENOR SA is available at the company's website (www.sidenor.com).