Judgment of the General Court (Third Chamber, Extended Composition) of 24 September 2019.#Printeos, SA and Others v European Commission.#Competition – Agreements, decisions and concerted practices – Market for stock/catalogue and special printed envelopes – Decision establishing an infringement of Article 101 TFEU – Annulment in part on the ground of infringement of the obligation to state reasons – Amending decision – Settlement procedure – Fines – Basic amount – Exceptional adjustment – Ceiling of 10% of total turnover – Article 23(2) of Regulation (EC) No 1/2003 – Ne bis in idem principle – Legal certainty – Legitimate expectations – Equal treatment – Cumulation of penalties – Proportionality – Fairness