223Foremost amongst the steps referred to in Article 233 EC, in the case of a judgment annulling or reducing the fine imposed on an undertaking for infringement of the Treaty competition rules, is the Commission's obligation to repay all or part of the fine paid by the undertaking in question, in so far as that payment must be described as a sum unduly paid following the annulment decision. That obligation applies not only to the principal amount of the fine overpaid but also to default interest on that amount (Corns UK v Commission, paragraph 222 above, paragraphs 52 and 53).
Source: EUR-Lex, © European Union, 1998-2026. Reuse authorised under Decision 2011/833/EU.