Opinion of Advocate General Bobek delivered on 2 September 2021.#Bundeswettbewerbsbehörde v Nordzucker AG and Others.#Request for a preliminary ruling from the Oberster Gerichtshof.#Reference for a preliminary ruling – Competition – Article 101 TFEU – Cartel prosecuted by two national competition authorities – Charter of Fundamental Rights of the European Union – Article 50 – Non bis in idem principle – Existence of the same offence – Article 52(1) – Limitations to the non bis in idem principle – Conditions – Pursuit of an objective of general interest – Proportionality.#Case C-151/20.