Athens, August 1, 2011

ANNOUNCEMENT

ANNOUNCEMENT DATE OF THE HY 2011

FINANCIAL RESULTS

SIDENOR S.A. informs the investment community that that it will release its HY 2011 Financial Results on Tuesday August 30, 2011 and at the same day there will be an analyst conference call regarding these results.

The Data and Information, the Mid-Year Financial Report under IFRS for the period 1/1/2011 – 30/6/2011, as well as the respective press release will 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.gr).