Court of Justice 29 April 2014, C‑580/12 P (Guardian Industries Corp. and Guardian Europe Sàrl v European Commission.)

OPINION OF ADVOCATE GENERAL WATHELET delivered on 29 April 2014 ( 1 ) Case C‑580/12 P Guardian Industries Corp. Guardian Europe Sàrl v European Commission ‛Appeals — Agreements, decisions and concerted practices — Market for flat glass — Calculation of the fine — Inclusion of an undertaking’s internal sales — Reasonable time — Admissibility of documents produced out of time’ 1.