42An undertaking which has participated in such a single and complex infringement through its own conduct, which fell within the definition of an agreement or a concerted practice having an anti-competitive object for the purposes of Article 81(1) EC and was intended to help bring about the infringement as a whole, may accordingly be liable also in respect of the conduct of other undertakings in the context of the same infringement throughout the period of its participation in the infringement. That is the position where it is shown that the undertaking intended, through its own conduct, to contribute to the common objectives pursued by all the participants and that it was aware of the offending conduct planned or put into effect by other undertakings in pursuit of the same objectives or that it could reasonably have foreseen it and was prepared to take the risk (Commission v Anic Partecipazioni, paragraphs 87 and 203, and Aalborg Portland and Others v Commission, paragraph 83).
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