Judgment of the General Court (Fifth Chamber, Extended Composition) of 25 March 2026.#TUI Belgium NV and Others v Belgische Staat.#Reference for a preliminary ruling – Taxation – Common system of VAT – Transactions subject to VAT – Supply of services for consideration – Exemptions – Standstill clause – Right of Member States to retain certain taxes during a transitional period – Article 28(3)(a) and (4) of Sixth Directive 77/388/EEC and Article 370 of Directive 2006/112/EC – Supply of services by travel agents in relation to travel outside the European Union – Annex E(15) to Sixth Directive 77/388 and Annex X, Part A, point (4), to Directive 2006/112 – Subsequent amendment of the national legislation – No express derogation from the exemption.#Case T-221/25.