Case C-390/11: Judgment of the Court (Fourth Chamber) of 4 October 2012 (reference for a preliminary ruling from the Nejvyšší správní soud — Czech Republic) — CS AGRO Ronov s.r.o. v Ministerstvo zemědělství (Agriculture — Sugar sector — Common organisation of the markets — Application for restructuring aid — Undertaking by the producer to cease delivery of a certain quantity of quota sugar beet — Definition — Unilateral declaration of the producer — Refusal to grant aid — Need to terminate the existing delivery contract)