Rule 8.3- Iberdrola SA

ACS Actividades De Const Y Servs SA 30 March 2007 FORM 8.3 DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE (Rule 8.3 of the Takeover Code) 1. KEY INFORMATION Name of person dealing (Note 1) ACS ACTIVIDADES DE CONSTRUCCION Y SERVICIOS, S.A. Company dealt in IBERDROLA S.A. Class of relevant security to which EQUITY SHARE CAPITAL the dealings being disclosed relate (Note 2) Date of dealing 30 MARCH 2007 2. INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE (a) Interests and short positions (following dealing) in the class of relevant security dealt in (Note 3) Long Short Number (%) Number (%) (1) Relevant securities 90,154,918 10.000% (2) Derivatives (other than options) 27,046,475 3.000% (3) Options and agreements to purchase/sell Total 117,201,393 13.0000% (b) Interests and short positions in relevant securities of the company, other than the class dealt in (Note 3) Class of relevant security: Long Short Number (%) Number (%) (1) Relevant securities (2) Derivatives (other than options) (3) Options and agreements to purchase/sell Total (c) Rights to subscribe (Note 3) Class of relevant security: Details 3. DEALINGS (Note 4) (a) Purchases and sales Purchase/sale Number of securities Price per unit (Note 5) (b) Derivatives transactions (other than options) Product Long/short Number of Price per name, e.g. (Note 6) securities unit (Note 5) CFD (Note 7) EQUITY SWAP WITH LONG 5,050,921 34.13€ PHYSICAL DELIVERY OPTION (c) Options transactions in respect of existing securities (i) Writing, selling, purchasing or varying Product Writing, Number of Exercise Type, Expiry Option name,e.g. selling, securities price e.g. date money call purchasing, to which American, paid/ option varying the option European received etc. relates etc. per unit (Note 7) (Note 5) (ii) Exercising Product name, Number of Exercise price per unit e.g. call option securities (Note 5) (d) Other dealings (including new securities) (Note 4) Nature of transaction Details Price per unit (Note 8) (if applicable) (Note 5) 4. OTHER INFORMATION Agreements, arrangements or understandings relating to options or derivatives Full details of any agreement, arrangement or understanding between the person disclosing and any other person relating to the voting rights of any relevant securities under any option referred to on this form or relating to the voting rights or future acquisition or disposal of any relevant securities to which any derivative referred to on this form is referenced. If none, this should be stated. NO VOTING RIGHT AGREEMENT AND PHYSICAL DELIVERY OPTION .............................................................................. Is a Supplemental Form 8 attached? (Note 9) YES Date of disclosure 30 MARCH 2007 Contact name ALEJANDRO MATA Telephone number +34.91.343.95.12 If a connected EFM, name of offeree NON APPLICABLE /offeror with which connected If a connected EFM, state nature of NON APPLICABLE connection (Note 10) Notes The Notes on Form 8.3 can be viewed on the Takeover Panel's website at www.thetakeoverpanel.org.uk SUPPLEMENTAL FORM 8 DETAILS OF OPEN POSITIONS (This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate) OPEN POSITIONS (Note 1) Product Written Number of Exercise Type, Expiry name,e.g. or securities price e.g. date call purchased to which (Note 2) American, option the option European or etc. derivative relates EQUITY SWAP PURCHASED 5,050,921 34.13€ AMERICAN 13.12.2007 WITH PHYSICAL (EQUITY SWAP DELIVERY OPTION CAN BE UNWOUND AT ANYTIME) Notes 1. Where there are open option positions or open derivative positions (except for CFDs), full details should be given. Full details of any existing agreements to purchase or to sell should also be given on this form. 2. For all prices and other monetary amounts, the currency must be stated. For details of the Code's dealing disclosure requirements, see Rule 8 and its Notes which can be viewed on the Takeover Panel's website at www.thetakeoverpanel.org.uk This information is provided by RNS The company news service from the London Stock Exchange
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