Case C-540/14 P: Judgment of the Court (First Chamber) of 22 June 2016 — DK Recycling und Roheisen GmbH v European Commission (Appeal — Environment — Directive 2003/87/EC — Article 10a — Scheme for greenhouse gas emission allowance trading — Transitional rules for harmonised free allocation of emission allowances from 2013 — Decision 2011/278/EU — National implementation measures submitted by the Federal Republic of Germany — Rejection of the inscription of certain installations on the lists of installations receiving free allocations of emission allowances — Provision relating to cases of ‘undue hardship’ — Implementing powers of the Commission)