Case C-282/07: Judgment of the Court (Fourth Chamber) of 22 December 2008 (reference for a preliminary ruling from the Cour d'appel de Liège — Belgium) — État belge — SPF Finances v Truck Center SA (Freedom of establishment — Article 52 of the EC Treaty (now, following amendment, Article 43 EC) and Article 58 of the EC Treaty (now Article 48 EC) — Free movement of capital — Articles 73b and 73d of the EC Treaty (now Articles 56 EC and 58 EC respectively) — Taxation of legal persons — Income from capital and movable property — Retention of tax at source — Withholding tax — Charging of withholding tax on interest paid to non-resident companies — No charging of withholding tax on interest paid to resident companies — Double taxation convention — Restriction — None)