An internal audit system is defined as the set of rules and procedures that the Company applies for the prevention and suppression of functions and procedures at all levels of the hierarchy and its organizational structure in order to ensure:

• The legitimacy and security of management and transactions
• The accuracy and reliability of the published financial statements and any other financial information and communication
• The efficiency of the operating systems and the operations of the Company

The Board of Directors utilizes the internal audit system in order to protect the assets of TERNA ENERGY, to assess the emerging risks and to provide accurate and comprehensive information to the shareholders regarding the Company’s actual standing and prospects as well as how to deal with potential risks.

The Board of Directors establishes the internal audit’s framework of operation, approves the procedures for conducting and evaluating its results and decides on the staffing of the competent departments, taking into account the legal and institutional framework in force.

To that end, a dedicated internal audit unit has been set up and operates, which is independent and does not belong hierarchically in any other organizational unit. The Internal Audit Unit is supervised by the Audit Committee of the Company, with the assistance of which the Board of Directors assesses the adequacy and efficiency of this Unit and the extent to which its reports are used, regarding the continuous improvement of the Company at all levels and effective risk management.

In addition, the Audit Committee maintains direct and regular contact with the legal auditors in order to be systematically informed about the adequacy and reliability of the internal audit systems as well as the accuracy and reliability of financial information.