Article R463-13 of the French Commercial code
For the purposes of Article L. 463-4, when a person requests protection of business confidentiality with regard to items communicated by him to the Autorité de la concurrence or seized from him by the latter, he shall indicate, either by registered letter with acknowledgement of receipt, or via a secure electronic document exchange platform, for each item of information, document or part of a document in question, the purpose of…