113In that regard, it is apparent, inter alia, from the case-law that the applicant was entitled, in order to be able effectively to submit his observations to the bureau of the EESC before it took a decision, to disclosure of a summary, at the very least, of the statements made by the various persons consulted during the investigation procedure, as those statements were used by OLAF, in its report, in order to make recommendations to the president of the EESC, on which the bureau based the measure at issue, and such a summary should have been disclosed while respecting, if necessary, the principle of confidentiality (see, to that effect, judgments of 4 April 2019, OZ v EIB, C‑558/17 P, EU:C:2019:289, paragraph 57; of 25 June 2020, HF v Parliament, C‑570/18 P, EU:C:2020:490, paragraph 60; and of 25 June 2020, SatCen v KF, C‑14/19 P, EU:C:2020:492, paragraph 121).