57In those circumstances, it is sufficient for the Commission to prove that the subsidiary is wholly owned by the parent company in order to presume that the parent actually exercises decisive influence over the subsidiary’s commercial policy. The Commission will then be able to regard the parent company as jointly and severally liable for payment of the fine imposed on its subsidiary, unless the parent company, which has the burden of rebutting that presumption, adduces sufficient evidence to show that its subsidiary acts independently on the market (see Case 286/98 P Stora Kopparbergs Bergslags v Commission [2000] ECR I-9925, paragraph 29; Akzo Nobel and Others v Commission, paragraph 61; General Química and Others v Commission, paragraph 40; and ArcelorMittal Luxembourg v Commission and Commission v ArcelorMittal Luxembourg and Others, paragraph 98).