Case C-19/19: Judgment of the Court (First Chamber) of 11 June 2020 (request for a preliminary ruling from the Cour de cassation — Belgium) — État belge v Pantochim SA, in liquidation (Reference for a preliminary ruling — Mutual assistance for the recovery of claims — Directive 76/308/EEC — Article 6(2) and Article 10 — Directive 2008/55/EC — Second paragraph of Article 6 and Article 10 — Tax claim of requesting Member State recovered by requested Member State — Status of that claim — Concept of ‘privilege’ — Statutory set-off of that claim against tax debt of requested Member State)