Case C-725/18: Judgment of the Court (Seventh Chamber) of 30 January 2020 (request for a preliminary ruling from the Grondwettelijk Hof — Belgium) — Anton van Zantbeek VOF v Ministerraad (Reference for a preliminary ruling — Article 56 TFEU — Article 36 of the Agreement on the European Economic Area — Freedom to provide services — Tax on stock exchange transactions concluded or executed in a Member State — Difference in treatment to the detriment of recipients of services using non-resident professional intermediaries — Restriction — Justification)