Judgment of the Court of First Instance of 15 June 2005 in Joined Cases T-71/03, T-74/03, T-87/03 and T-91/03 Tokai Carbon Co. Ltd v Commission of the European Communities (Competition — Cartels — Specialty graphite market — Price fixing — Liability — Calculation of fines — Cumulation of penalties — Duty to state reasons — Rights of the defence — Guidelines on the method of setting fines — Applicability — Gravity and duration of the infringement — Attenuating circumstances — Aggravating circumstances — Ability to pay — Cooperation during the administrative procedure — Methods of payment)