(ABGB) Commencement of a Secondary Public Offering of Its Shares of Abengoa Yield

WASHINGTON, Jan. 12, 2015  — Abengoa (MCE:ABG.B/P SM) (Nasdaq:ABGB), today announced the commencement of a public offering of up to 9,200,000 of its ordinary shares in Abengoa Yield by means of an underwritten secondary public offering. The underwriters of the offering will have a 30 day option to purchase up to 1,380,000 additional ordinary shares from Abengoa.

Citigroup and BofA Merrill Lynch are acting as global coordinators of the Offering. HSBC and Banco Santander are acting as joint bookrunners.

The Offering will be made only by means of a prospectus. A copy of the preliminary prospectus, when available, may be obtained without charge from the offices of Citigroup, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717 (Tel: 800-831-9146) or BofA Merrill Lynch, at 222 Broadway, New York, NY 10038, Attn: Prospectus Department, or by emailing dg.prospectus_requests@baml.com.

A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective. This press release shall not constitute an offer to sell or a solicitation of an offer to buy, nor will there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

This communication is directed only at (i) persons who are outside the United Kingdom or (ii) in the United Kingdom, persons who have professional experience in matters relating to investments falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the “Order”), or who are high net worth entities, and other persons to whom it may lawfully be communicated, falling within Article 49(2) of the Order (all such persons together being referred to as “relevant persons”). Any investment or investment activity to which this communication relates will only be available to and will only be engaged in with, relevant persons. Any person who is not a relevant person must not act or rely on this document or any of its contents.

Forward-Looking Statements

This communication contains forward-looking statements that may state Abengoa’s or its management’s intentions, beliefs, expectations or predictions for the future. Such forward looking statements are subject to certain risks, uncertainties and assumptions, and typically can be identified by the use of words such as “will,” “expect,” “estimate,” “anticipate,” “forecast,” “plan,” “believe,” and similar terms. Although Abengoa believes that its expectations are reasonable, it can give no assurance that these expectations will prove to have been correct, and actual results may vary materially. Factors that could cause actual results to differ materially from those contemplated above include, among others, risks and uncertainties related to the capital markets. Any forward looking information presented herein is made only as of the date of this press release, and we do not undertake any obligation to update or revise any forward-looking information to reflect changes in assumptions, the occurrence of unanticipated events, or otherwise.

CONTACT: Communication Department
         Patricia Malo de Molina Melendez
         Tel: +34 954 93 71 11
         E-mail: communication@abengoa.com

         Investor relations
         Barbara Zubiria Furest.
         Tel: +34 954 93 71 11
         E-mail: ir@abengoa.com