BASE PROSPECTUS SIAS S.p.A. (incorporated with limited liability under the laws of the Republic of Italy) €2,000,000,000 Euro Medium Term Note Programme Under the €2,000,000,000 Euro Medium Term Note Programme (the “Programme”) described in this Base Prospectus, SIAS S.p.A. (“SIAS” or the “Issuer”), subject to all applicable legal and regulatory requirements, may from time to time issue notes in bearer form and in any currency agreed between the Issuer and the relevant Dealer(s) (as defined below) (the “Notes”). The maximum aggregate nominal amount of all Notes from time to time outstanding under the Programme will not exceed €2,000,000,000 (or its equivalent in other currencies at the date of issue), save that the maximum aggregate principal amount may be increased from time to time, subject to compliance with the relevant provisions of the Programme and applicable laws and regulations in force from time to time. Notes will be issued in Series and, in the case of Secured Notes (as defined below), will be subject to, and have the benefit of, (i) an Italian law-governed intercreditor agreement dated 8 October 2010 (as amended or supplemented from time to time, the “Intercreditor Agreement”) between, inter alios, the Issuer, Mediobanca – Banca di Credito Finanziario S.p.A. as intercreditor agent (the “Intercreditor Agent”), Deutsche Trustee Company Limited as trustee (the “Trustee”) and the other Secured Creditors (as defined below) and (ii) one or more Italian law-governed deeds of pledge over the Issuer’s receivables and monetary claims (crediti pecuniari) arising pursuant to the Intercompany Loans (as defined below) granted out of the proceeds of the Secured Notes (the “Deeds of Pledge”) to be entered into by the Issuer in favour of the holders of the relevant Series of Secured Notes and the Trustee on or about the date of issue of each Series of Secured Notes. Pursuant to the Intercreditor Agreement, proceeds from the enforcement of the Security Interests created pursuant to the Deeds of Pledge will be shared pro rata among the Secured Creditors who have enforced their respective Security Interests against the Issuer pursuant to the Security Documents (as defined below) (See Condition 5 “Special Provisions of Secured Notes” below). Investing in Notes issued under the Programme involves certain risks. For a discussion of these risks, see “Risk Factors” beginning on page 1 below. The Base Prospectus has been approved by the Central Bank of Ireland (the “Central Bank”), as competent authority under Directive 2003/71/EC, as amended (including by Directive 2010/73/EU), to the extent that such amendments have been implemented in the relevant member state of the European Economic Area (the “Prospectus Directive”). The Central Bank only approves this Base Prospectus as meeting the requirements imposed under Irish and EU law pursuant to the Prospectus Directive. Such approval relates only to the Notes which are to be admitted to trading on the regulated market of the Irish Stock Exchange or other regulated markets for the purposes of Directive 2004/39/EC or which are to be offered to the public in any member state of the European Economic Area. Application has been made to the Irish Stock Exchange for the Notes to be admitted to the Official List and trading on its regulated market. The Programme also permits Notes to be issued on the basis that they will not be admitted to listing, trading and/or quotation by any competent authority, stock exchange and/or quotation system or to be admitted to listing, trading and/or quotation by such other or further competent authorities, stock exchanges and/or quotation systems as may be agreed with the Issuer. SIAS’s long-term secured debt is currently rated Baa2 (negative outlook) by Moody’s Investors Service Ltd. (“Moody’s”) and Fitch Italia S.p.A. (“Fitch”) rates SIAS’s long-term debt BBB+ (stable outlook). Each of Moody’s and Fitch is established in the European Union and registered under Regulation (EC) No. 1060/2009 (as amended) (the “CRA Regulation”) and as such is included in the list of credit rating agencies published by the European Securities and Markets Authority on its website (at http://www.esma.europa.eu/page/List-registered-and-certified-CRAs) in accordance with the CRA Regulation. Tranches of Notes to be issued under the Programme will be rated or unrated. Where a Tranche of Notes is to be rated, such rating will not necessarily be the same as the rating assigned to the Issuer or to Notes already issued. Where a Tranche of Notes is rated, the applicable rating(s) will be specified in the relevant Final Terms. Whether or not a rating in relation to any Tranche of Notes will be treated as having been issued by a credit rating agency established in the European Union and registered under the CRA Regulation will be disclosed in the relevant Final Terms. A security rating is not a recommendation to buy, sell or hold securities and may be subject to suspension, reduction or withdrawal at any time by the assigning rating agency. The Notes may be issued on a continuing basis to one or more of the Dealers named below and any additional Dealer appointed under the Programme from time to time by the Issuer (each a “Dealer” and together the “Dealers”, which appointment may be for a specific issue or on an ongoing basis. References in this Base Prospectus to the “relevant Dealer” shall, in the case of an issue of Notes being (or intended to be) subscribed by more than one Dealer, be to all Dealers agreeing to subscribe such Notes. Arranger MEDIOBANCA Dealers Crédit Agricole CIB Mediobanca Société Générale Corporate & Investment UniCredit Bank Banking 10 December 2014 IMPORTANT NOTICES This Base Prospectus comprises a base prospectus for the purposes of Article 5.4 of Directive 2003/71/EC, as amended (which includes the amendments made by Directive 2010/73/EU to the extent that such amendments have been implemented in a relevant Member State of the European Economic Area) (the “Prospectus Directive”). SIAS, a company subject to the direction and co-ordination of Argo Finanziaria S.p.A. in accordance with Articles 2497 et seq. of the Italian Civil Code, accepts responsibility for the information contained in this Base Prospectus and declares that, having taken all reasonable care to ensure that such is the case, the information contained in this Base Prospectus is, to the best of its knowledge, in accordance with the facts and contains no omission likely to affect its import. Subject as provided in the applicable Final Terms, the only persons authorised to use this Base Prospectus in connection with an offer of Notes are the persons named in the applicable Final Terms as the relevant Dealer. Each Tranche (as defined herein) of Notes will be issued on the terms set out herein under “Terms and Conditions of the Notes” (the “Conditions”) as completed by a document specific to such Tranche called final terms (the “Final Terms”) or, to the extent that the information relating to that Tranche constitutes a significant new factor in relation to the information contained in this Base Prospectus, in a separate prospectus specific to such Tranche (the “Drawdown Prospectus”) as described under “Final Terms and Drawdown Prospectuses” below. In the case of a Tranche of Notes which is the subject of a Drawdown Prospectus, each reference in this Base Prospectus to information being specified or identified in the relevant Final Terms shall be read and construed as a reference to such information being specified or identified in the relevant Drawdown Prospectus unless the context requires otherwise. This Base Prospectus must be read and construed together with any amendments or supplements hereto and with any information incorporated by reference herein and, in relation to any Tranche of Notes which is the subject of Final Terms, must be read and construed together with the relevant Final Terms. This Base Prospectus is to be read in conjunction with all documents which are deemed to be incorporated herein by reference (see “Information Incorporated by Reference”). This Base Prospectus shall be read and construed on the basis that such documents are incorporated in and form part of this Base Prospectus. The Issuer has confirmed to the Dealers named in “General Description of the Programme” below that this Base Prospectus contains all information which is (in the context of the Programme, the issue, offering and sale of the Notes) material; that such information is true and accurate in all material respects and is not misleading in any material respect; that any opinions, predictions or intentions expressed herein are honestly held or made and are not misleading in any material respect; that this Base Prospectus does not omit to state any material fact necessary to make such information, opinions, predictions or intentions (in the context of the Programme, the issue, offering and sale of the Notes) not misleading in any material respect; and that all proper enquiries have been made to verify the foregoing. No person has been authorised by the Issuer to give any information or to make any representation not contained in this Base Prospectus or any other document entered into in relation to the Programme or any information supplied by the Issuer and, if given or made, such information or representation should not be relied upon as having been authorised by the Issuer or any Dealer. None of the Dealers nor any of their respective affiliates have authorised the whole or any part of this Base Prospectus and none of them makes any representation or warranty or accepts any responsibility as to the accuracy or completeness of the information contained in this Base Prospectus.