354The Court observes in this respect that ADM bases the existence of such a practice on one case alone, namely the ‘Pre-Insulated Pipe Cartel’ case (Commission Decision 1999/60/EC of 21 October 1998 relating to a proceeding under Article [81] of the EC Treaty (Case No IV/35.691/E-4: — Pre-Insulated Pipe Cartel) (OJ 1999 L 24, p. 1)). However, it is not possible to establish the existence of a Commission practice on the basis of one case alone and ADM fails to demonstrate that the two cases are comparable. ADM does not indicate how the compensation it paid in the present case is of the same order as that at issue in the abovementioned case, namely significant and limited to one producer in the sector and its owner. Moreover, as recalled at paragraph 345 above, the mere fact that the Commission assessed conduct in a certain manner in its previous decisions does not mean that it is obliged to do so also when adopting a subsequent decision.