43First, it should be recalled that it is apparent from Article 58 of the Statute of the Court of Justice of the European Union that the grounds of appeal must be based on arguments made in the proceedings before the General Court. Moreover, according to Article 170(1) of the Rules of Procedure, the subject matter of the proceedings before the General Court may not be changed in the appeal. Thus, the jurisdiction of the Court of Justice in an appeal is confined to a review of the findings of law on the pleas and arguments debated before the General Court (order of 21 July 2020, Abaco Energy and Others v Commission, C‑436/19 P, not published, EU:C:2020:606, paragraph 37 and the case-law cited).
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