Because the New Shares will have different rights in respect of
dividends declared in respect of the year ended December 31, 2008
than Enel’s other ordinary shares (see “Dividends and Dividend
Policy” herein), the New Shares will have a separate ISIN from the
other ordinary shares until June 24, 2009, the date of payment of such
dividends. Such special-purpose ISIN is IT0004497704. As of June 25,
2009, such special-purpose ISIN will cease to be used and the New
Shares will have the same ISIN as the existing ordinary shares of Enel,
which is IT0003128367. The New Shares will become fungible with
the existing ordinary shares after June 22, 2009, which is the record
date for the aforementioned 2008 dividends.