EirGrid Code of Conduct for Directors

The EirGrid plc Board has adopted a Directors’ Code of Conduct which puts our purpose, strategy and values at the centre of how directors will conduct themselves. The objectives of the Code are to: • Establish a set of ethical principles underpinning Directors’ conduct; • Promote and maintain confidence and trust in EirGrid; • Prevent the development, continuance or acceptance of unethical practices; and • Provide a frame of reference for decision-making. This code is applicable to all directors of EirGrid plc, to all directors of subsidiary companies of EirGrid plc and to all EirGrid appointed directors to Joint Venture entities.