1. Without prejudice to Articles 12 and 15, information collected pursuant to Articles 17 to 22 shall be used only for the purpose for which it was acquired.
2. Without prejudice to the exchange and to the use of information foreseen in Articles 11, 12, 14, 15 and 27, the Commission and the competition authorities of the Member States, their officials, servants and other persons working under the supervision of these authorities as well as officials and civil servants of other authorities of the Member States shall not disclose information acquired or exchanged by them pursuant to this Regulation and of the kind covered by the obligation of professional secrecy. This obligation also applies to all representatives and experts of Member States attending meetings of the Advisory Committee pursuant to Article 14.