Case C-1/11: Judgment of the Court (Fourth Chamber) of 29 March 2012 (reference for a preliminary ruling from the Verwaltungsgericht Mainz — Germany) — Interseroh Scrap and Metals Trading GmbH v Sonderabfall-Management-Gesellschaft Rheinland-Pfalz mbH (SAM) (Environment — Regulation (EC) No 1013/2006 — Article 18(1) and (4) — Shipments of certain waste — Article 3(2) — Mandatory information — Identity of waste producers — Information not provided by the intermediary dealer — Protection of business secrets)