European Union – Rules on competition. The Court of Justice of the European Union allowed the appeal by HeidelbergCement AG in which that company sought to set aside a judgment of the General Court of the European Union in HedelbergCement v Commission: T-302/11, by which the General Court had dismissed its action for annulment of Commission Decision C(2011) 2361 final of 30 March 2011 relating to a proceeding under art 18(3) of Council Regulation (EC) No 1/2003.