Judgment of the General Court (Seventh Chamber) of 2 February 2012 -- EI du Pont de Nemours and Others v Commission (Case T-76/08) Competition -- Agreements, decisions and concerted practices -- Market for chloroprene rubber -- Decision finding an infringement of Article 81 EC and Article 53 of the EEA Agreement -- Price-fixing -- Market-sharing -- Imputability of the unlawful conduct -- Joint venture -- Guidelines on the method of setting fines -- Mitigating circumstances -- Cooperation 1. Competition -- European Union rules -- Infringements -- Attribution -- Parent company and subsidiaries -- Economic unit -- Criteria for assessment (Art. 81 EC; Council Regulation No 1/2003, Art. 23(2)) (see paras 58-62) 2. Competition -- Agreements, decisions and concerted practices -- Proof -- Evidence adduced by the Commission -- Assessment (Art. 81(1) EC) (see para. 105) 3. Competition -- Fines -- Amount -- Determination -- Judicial review -- Assessment of the duration of the infringement by progressive six-month thresholds -- Period longer than that of the actual participation in the infringement -- Lawfulness -- Conditions (Council Regulation No 1/2003, Art. 23(2); Commission Notice 2006/C 210/02) (see paras 127-130) 4. Competition -- Fines -- Amount -- Determination -- Criteria -- Reduction in the amount of the fine for cooperation of the undertaking concerned -- Conditions -- Discretion of the Commission (Commission Notice 2002/C 45/03) (see paras 138-145, 148) Re: APPLICATION for, first, annulment of Articles 1 and 2 of Commission Decision C(2007) 5910 final of 5 December 2007 relating to a proceeding under Article 81 [EC] and Article 53 of the EEA Agreement (Case COMP/38629 -- Chloroprene Rubber), as amended by Commission Decision C(2008) 2974 final of 23 June 2008, in so far as they refer to EI du Pont de Nemours and Company and, second, a reduction in the amount of the fine imposed jointly and severally on the applicants by that decision. Operative part The Court: 1. Dismisses the action; 2. Orders EI du Pont de Nemours and Company, DuPont Performance Elastomers LLC and DuPont Performance Elastomers SA to pay the costs.