AUSY Registration Document 2011 - Page 3

REGISTRATION DOCUMENT This document includes the annual financial report 2011 This AUSY 2011 Registration Document was filed with the Autorité des Marchés Financiers (French Financial Markets Authority, or AMF) on April 26 2012, in accordance with article 212-13 of that body’s General Regulations. It may be used in support of a financial transaction only if supplemented by an offering circular duly certified by the AMF. This document has been prepared by the Issuer and engages its signatories’ responsibility. Furthermore, pursuant to Article 28 of European Commission Regulation 809/2004, the following items are included for reference purposes in this Registration Document: The corporate and consolidated financial statements at December 31st 2010, as well as our Statutory Auditors’ related reports, which are set out on pages 110 to 151 of Registration Document D. 11-0416 filed with the AMF on April 29th 2011; The corporate and consolidated financial statements at December 31st 2009, together with our Statutory Auditors’ related reports, as set out on pages 99 to 136 of Registration Document D-10-0275 filed with the AMF on April 16th 2010. 2011 Registration Document - AUSY 1

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