Judgment of the General Court (Fourth Chamber) of 16 November 2011 - Fardem Packaging v Commission (Case T-51/06) Competition - Agreements, decisions and concerted practices - Plastic industrial bags sector - Decision finding an infringement of Article 81 EC - Fines - Gravity of the infringement - Attenuating circumstances - Cooperation during the administrative procedure 1. Competition - Agreements, decisions and concerted practices - Agreements and concerted practices constituting a single infringement - Undertakings that may be held responsible for participating in an overall cartel - Criteria - Commission not obliged, in its decision, to specify the infringement by undertaking and by country (Art. 81(1) EC) (see paras 42-45) 2. Competition - Fines - Amount - Determination - Criteria - Market share of the undertaking concerned - Discretion of the Commission (Art. 81(1) EC; Council Regulation No 1/2003, Art. 23; Commission Notice 97/C 372/03) (see paras 54-59) 3. Competition - Fines - Amount - Determination - Criteria - Commission's margin of discretion - Raising of the general level of fines (Art. 81(1) EC; Council Regulation No 1/2003, Art. 23) (see paras 67, 69) 4. Competition - Fines - Amount - Determination - Division of the undertakings concerned into different categories - Conditions - Respect for the principle of equal treatment - Observance of the principle of proportionality (Art. 81(1) EC; Council Regulation No 1/2003, Art. 23) (see paras 77-78) 5. Competition - Fines - Amount - Determination - Mitigating circumstances - Participation allegedly under constraint at meetings of undertakings having an anti-competitive purpose - No intention to restrict competition - Not relevant (Art. 81(1) EC; Council Regulation No 1/2003, Art. 23) (see paras 95-100) 6. Competition - Fines - Amount - Determination - Non-imposition or reduction of the fine for cooperation of the undertaking concerned - Need for conduct which facilitated the Commission's finding of an infringement - Discretion of the Commission - Limits - Respect for the principle of equal treatment (Art. 81(1) EC; Council Regulation No 1/2003, Art. 23; Commission Notice 96/C 207/04) (see paras 145-148) Re: APPLICATION for annulment in part of Commission Decision C(2005) 4634 final of 30 November 2005 relating to a proceeding under Article 81 [EC] (Case COMP/F/38.354 - Industrial bags), concerning a cartel on the market for plastic industrial bags, and for annulment or reduction of the fine imposed on the applicant by that decision. Operative part The Court: 1. Dismisses the action; 2. Orders Fardem Packaging BV to pay the costs.