On 6 October 2021, the Grand Chamber of the EU Court of Justice (ECJ) issued its judgment in Case C 882/19 (Sumal SL v. Mercedes Benz Trucks España), holding that where the existence of an infringement of Article 101(1) of the Treaty on the Functioning of the European Union (TFUE) has been established in relation to a parent company, the victim of that infringement may seek to rely on civil liability of a subsidiary of that parent company. To do so, it must prove (a) the economic, organisational and legal links that unite the two legal entities and (b) the existence of a specific link between the economic activity of the subsidiary and the subject matter of the infringement for which the parent company was held responsible. In short, it is necessary to prove that the two companies constituted an economic unit at the time of the infringement.