As communicated to the market on 16 November 2011, on 17 November 2011 Ansaldo STS S.p.A. acquired 6,400 ordinary shares of Ansaldo STS S.p.A (corresponding to approximately 0.0046 % of the share capital). This purchase forms part of the share buyback programme authorised by the shareholders' meeting on 5 April 2011. These shares were acquired at a price of EUR 7.1772 per share net of
commission. The own shares were acquired to service the share incentive plans approved by the company.