Case C-337/19 P: Judgment of the Court (Fourth Chamber) of 16 September 2021 — European Commission v Kingdom of Belgium, Magnetrol International, Ireland (Appeal — State aid — Aid scheme implemented by the Kingdom of Belgium — Excess profit exemption — Tax ruling — Consistent administrative practice — Regulation (EU) 2015/1589 — Article 1(d) — Concept of ‘aid scheme’ — Concept of ‘act’ — Concept of ‘further implementing measures’ — ‘General and abstract’ definition of beneficiaries — Cross-appeal — Admissibility — Fiscal autonomy of the Member States)