5. Where a public sector body, the Commission, the European Central Bank or a Union body intends to transmit or make data available under paragraph 1 of this Article, it shall notify without undue delay the data holder from whom the data was received, stating the identity and contact details of the organisation or the individual receiving the data, the purpose of the transmission or making available of the data, the period for which the data is to be used and the technical protection and organisational measures taken, including where personal data or trade secrets are involved. Where the data holder disagrees with the transmission or making available of data, it may lodge a complaint with the competent authority designated pursuant to Article 37 of the Member State where the data holder is established.