Article 53 of Competition Act provides definition of business secret- Under the term business secret shall be considered, in particular the following: 1. all which is defined to be a business secret by law or other regulations;  2. all which is defined to be a business secret by the undertaking concerned if accepted as such by the CCA;  3. all correspondence between the CCA and the European Commission and between the CCA and other international competition authorities and their networks. (3) A business secret referred shall be in particular business information which has actual or potential economic and market value, the disclosure or use of which could result in economic advantage for other undertakings.  Additional provisions relate to confidential information as part of legal professional privilege and surprise inspections (Article 45 of Competition Act): The conduct of a surprise inspection shall not extend to correspondence, notices and other communication which is considered confidential information between the undertaking against which the proceeding is carried out and its attorney, who is obliged to keep their communication covered by the obligation of professional secrecy pursuant to special rules.  Where the undertaking or its attorney refuse the access to file and documentation pleading confidential or privileged information, the authorised person of the CCA has the right of access to the files concerned. Should in the view of the authorised person of the CCA the information concerned not be regarded as confidential or privileged, the authorised person of the CCA shall in the presence of the undertaking and its attorney, if the latter is present, file the document concerned or its photocopy in a separate envelope, properly dated and sealed by the CCA and signed by all the parties and attorney concerned.