 | | IMPORTANT INFORMATION This communication does not constitute an offer to purchase, sell or exchange or the solicitation of an offer to purchase, sell or exchange any securities or the solicitation of any vote or approval with respect to the proposed acquisition by Iberdrola S.A. of ScottishPower plc (the “Acquisition”), nor shall there be any purchase, sale or exchange of securities or such solicitation in any jurisdiction in which such offer, solicitation or sale or exchange would be unlawful prior to the registration or qualification under the laws of such jurisdiction. If and when Iberdrola S.A. commences the Acquisition for the ordinary shares of ScottishPower plc and the Acquisition is implemented by way of a scheme of arrangement under the U.K. Companies Act 1985, as amended (the “Scheme”), any securities of Iberdrola S.A. will not be registered under the U.S. Securities Act of 1933, as amended (the “Securities Act”), but will be issued in reliance on the exemption provided by Section 3(a)(10) thereof, and ScottishPower plc will furnish the acquisition document to the SEC under cover of a Form 6-K. If and when Iberdrola S.A. determines to commence the Acquisition by way of a takeover offer under The City Code on Takeovers and Mergers of the United Kingdom (the “Offer”) rather than the Scheme, Iberdrola S.A. will, to the extent that the shares issued in connection with the proposed Acquisition are required to be registered in the United States, file a registration statement on Form F-4, which will include a prospectus, with the United States Securities and Exchange Commission (“SEC”).Investors are strongly advised to read the documents that will be made available to them, including the registration statement and prospectus, if and when available, and any other relevant documents made available to them and/or the SEC or other applicable regulatory authorities, as well as any amendments or supplements to those documents, because they will contain important information regarding Iberdrola S.A., ScottishPower plc, the Acquisition and any Offer. ScottishPower shareholders should also read the related solicitation/recommendation statement on Schedule 14D-9 that may be filed with the SEC by ScottishPower relating to the Acquisition. If and when filed, investors may obtain free copies of the registration statement, the prospectus as well as other relevant documents filed with the SEC, at the SEC’s web site atwww.sec.gov and will receive information at an appropriate time on how to obtain these transaction-related documents for free from the parties involved or a duly appointed agent. The distribution of this communication may, in some countries, be restricted by law or regulation. Accordingly, persons who come into possession of this document should inform themselves of and observe these restrictions. To the fullest extent permitted by applicable law, the companies involved in the proposed Acquisition disclaim any responsibility or liability for the violation of such restrictions by any person. The shares to be issued in connection with the proposed Acquisition may not be offered or sold in the United States except pursuant to an effective registration statement under the Securities Act or pursuant to a valid exemption from registration. FORWARD-LOOKING STATEMENTS This communication contains forward-looking information and statements about ScottishPower plc and Iberdrola S.A. and their combined businesses after completion of the proposed Acquisition. Forward-looking statements are statements that are not historical facts. These statements include financial projections and estimates and their underlying assumptions, statements regarding plans, objectives and expectations with respect to future operations, products and services, and statements regarding future performance. Forward-looking statements are generally identified by the words “expects,” “anticipates,” “believes,” “intends,” “estimates” and similar expressions. Although the managements of ScottishPower plc and Iberdrola S.A. believe that the expectations reflected in such forward-looking statements are reasonable, investors and holders of ScottishPower plc and Iberdrola S.A. shares are cautioned that forwardlooking information and statements are subject to various risks and uncertainties, many of which are difficult to predict and generally beyond the control of ScottishPower plc and Iberdrola S.A., that could cause actual results and developments to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include those discussed or identified in the public documents sent by ScottishPower plc and Iberdrola S.A. to theComisión Nacional del Mercado de Valores and under “Risk Factors” in the annual report on Form 20-F for the year ended March 31, 2006 filed by ScottishPower plc with the SEC on June 30, 2006. Except as required by applicable law, neither ScottishPower plc nor Iberdrola S.A. undertakes any obligation to update any forward-looking information or statements. Dealing Disclosure Requirements Under the provisions of Rule 8.3 of the City Code, if any person is, or becomes, “interested” (directly or indirectly) in one per cent. or more of any class of “relevant securities” of Iberdrola or of ScottishPower, all “dealings” in any “relevant securities” of that company (including by means of an option in respect of, or a derivative referenced to, any such “relevant securities”) must be publicly disclosed by no later than 3.30 pm (London time) on the London business day following the date of the relevant transaction. This requirement will continue until the date on which the acquisition becomes Effective, lapses or is otherwise withdrawn or on which the “offer period” otherwise ends. If two or more persons act together pursuant to an agreement or understanding, whether formal or informal, to acquire an “interest” in “relevant securities” of Iberdrola or ScottishPower, they will be deemed to be a single person for the purpose of Rule 8.3. Under the provisions of Rule 8.1 of the City Code, all “dealings” in “relevant securities” of Iberdrola or of ScottishPower by Iberdrola or ScottishPower, or by any of their respective “associates”, must be disclosed by no later than 12.00 noon (London time) on the London business day following the date of the relevant transaction. A disclosure table, giving details of the companies in whose “relevant securities” “dealings” should be disclosed, and the number of such securities in issue, can be found on the Panel’s website atwww.thetakeoverpanel.org.uk. “Interests in securities” arise, in summary, when a person has long economic exposure, whether conditional or absolute, to changes in the price of securities. In particular, a person will be treated as having an “interest” by virtue of the ownership or control of securities, or by virtue of any option in respect of, or derivative referenced to, securities. Terms in quotation marks are defined in the City Code, which can also be found on the Panel’s website. If you are in any doubt as to whether or not you are required to disclose a “dealing” under Rule 8, you should consult the Panel. |