Judgment of the Court of First Instance (Seventh Chamber) of 30 September 2009 - Elf Aquitaine v Commission (Case T-174/05) Competition - Agreements, decisions and concerted practices - Monochloroacetic acid market - Decision finding an infringement of Article 81 EC - Market sharing and price fixing - Rights of the defence - Obligation to state the reasons on which the decision is based - Imputability of the infringement - Principle that penalties must fit the offence - Principle that penalties must have a proper legal basis - Presumption of innocence - Principle of sound administration - Principle of legal certainty - Misuse of powers - Fines 1. Competition - Administrative procedure - Statement of objections - Necessary content - Observance of the rights of the defence (Council Regulation No 1/2003, Arts 23 and 27(1)) (see paras 55-56, 70-71, 196-198) 2. Acts of the institutions - Statement of reasons - Obligation - Scope - Decision to apply competition rules - Decision relating to several addressees (Arts 81 EC, 82 EC and 253 EC) (see paras 79-80) 3. Competition - Community rules - Infringements - Attribution - Parent company and subsidiaries - No discretion of the Commission (Arts 81 EC and 82 EC) (see paras 106-108, 225-227) 4. Competition - Agreements, decisions and concerted practices - Undertaking - Concept - Economic unit - Attribution of infringements - Parent company and subsidiaries - Joint and several liability of the companies concerned (Art. 81(1) EC) (see paras 121-124, 184-187, 192-194) 5. Competition - Community rules - Infringements - Attribution - Parent company and subsidiaries - Economic unit - Criteria for assessment - Presumption of decisive influence exercised by the parent company over its wholly-owned subsidiaries - Obligation of the parent company to rebut the presumption that management power was actually exercised over its subsidiary - Applicability of the presumption where the parent company holds nearly all the capital of the subsidiary (Arts 81 EC and 82 EC) (see paras 125, 151-156, 160, 172-173) Re: APPLICATION for, principally, annulment of Articles 1(d), 2(c), 3 and 4(9) of Commission Decision C(2004) 4876 final of 19 January 2005 relating to a proceeding pursuant to Article 81 [EC] and Article 53 of the EEA Agreement (Case COMP/E-1/37.773 - MCAA) or, in the alternative, application for annulment of Article 2(c) of that decision, or, in the further alternative, application for variation of the said Article 2(c). Operative part The Court: 1. Dismisses the action; 2. Orders Elf Aquitaine SA to pay the costs.