Judgment of the Court (Ninth Chamber) of 4 June 2020.#Remondis GmbH v Abfallzweckverband Rhein-Mosel-Eifel.#Request for a preliminary ruling from the Oberlandesgericht Koblenz.#Reference for a preliminary ruling — Public procurement — Directive 2014/24/EU — Article 12(4) — Scope — Public contracts between entities within the public sector — Concept of ‘cooperation’ — Absence.#Case C-429/19.