Court of Justice (Second Chamber) 4 September 2014, C‑408/12 P (YKK Corporation and Others v European Commission.)

JUDGMENT OF THE COURT (Second Chamber) 4 September 2014 ( *1 ) ‛Appeal — Agreements, decisions and concerted practices — Markets for zip fasteners and other fasteners and for attaching machines — Successive responsibilities — Legal upper limit of the fine — Article 23(2) of Regulation No 1/2003 — Concept of ‘undertaking’ — Personal responsibility — Principle of proportionality — Deterrence