Joined Cases C-454/16 P to C-456/16 P to C-458/16 P: Judgment of the Court (Sixth Chamber) of 26 October 2017 — Global Steel Wire, SA (C-454/16 P), Moreda-Riviere Trefilerías SA (C-455/16 P), Trefilerías Quijano SA (C-456/16 P), Trenzas y Cables de Acero PSC SL (C-458/16 P) v European Commission (Appeal — Regulation (EC) No 1/2003 — Competition — Agreements, decisions and concerted practices — European prestressing steel market — Infringement of Article 101 TFEU — Fines — 2006 Guidelines on the method of setting fines — Paragraph 35 — Ability to pay — New request for a reduction in the amount of the fine on the ground of inability to pay — Letter of rejection — Action brought against that letter — Admissibility)