In particular, we have carried out the following procedures: interviews and discussions with Enel S.p.A.’s management and personnel from Enel Servizi S.r.l., Enel OGK-Muntenia SA, Endesa SA to obtain an understanding about the information, accounting and reporting system in use for the preparation of the sustainability report as well as the internal control processes and procedures supporting the collection, aggregation, processing and transmission of data and information to the department responsible for the preparation of the sustainability report; on-site verifications at Mochovce nuclear plant (Slovakia), Presenzano hydroelectric plant (Italy), Besós combined heat and power gas plant (Spain) and Lleida hydroelectric plant (Spain); analysis, on a sample basis, of the documentation supporting the preparation of the sustainability report in order to confirm the processes in use, their adequacy and the operation of the internal control system for the correct reliability of data and information in relation to the objectives described in the sustainability report; c. compliance analysis of qualitative information included in the sustainability report with the guidelines identified in paragraph 1 of the present report and of their internal consistency, with reference to the strategy, the sustainability policies and the identification of the significant matters for stakeholders; d. analysis of the stakeholders engagement process, regarding the methods in use and the inclusiveness of stakeholders involved, by reviewing minutes or any other documents related to significant matters arisen from dialogue with stakeholders; e. obtaining the representation letter, signed by the legal representative of Enel S.p.A, relating to the compliance of the sustainability report with the guidelines indicated in paragraph 1, as well as to the reliability and completeness of information and data presented in the sustainability report.