Case T-410/09: Judgment of the General Court (Third Chamber) of 12 December 2012 — Almamet v Commission (Competition — Agreements, decisions and concerted practices — Market for calcium carbide and magnesium for the steel and gas industries in the EEA, with the exception of Ireland, Spain, Portugal and the United Kingdom — Decision finding an infringement of Article 81 EC — Price-fixing and market-sharing — Rights of the defence — Commission’s powers in inspections — Single and continuous infringement — Fines — Cooperation during the administrative procedure — Proportionality — 2006 Guidelines on the method of setting fines)