Article 52 — Confidentiality

1. Neither the national supervisory authorities, acting in accordance with their national legislation, nor the national competent authorities, nor the Commission, nor the PRB, nor the Network Manager, nor the Agency shall disclose information of a confidential nature, in particular information about air navigation service providers, their business relations or their cost and revenues components. 2. Paragraph 1 shall be without prejudice to the right of disclosure by national supervisory authorities and the Commission where this is essential for the fulfilment of their duties. In that case such disclosure shall be proportionate and shall have regard to the legitimate interests of air navigation service providers, airspace users, airports or other relevant stakeholders in the protection of their commercially sensitive information. 3. Information and data made accessible pursuant to Articles 12(4), 23(10), 24(6), 25(2), 36(3) and 36(4) or reported pursuant to Article 29(6) in particular as regards determined costs and actual costs of designated air traffic service providers shall be publicly disclosed, subject to the protection of public security, defence and military matters or commercial interests of a natural or legal person, including intellectual property, unless there is an overriding public interest in disclosure.