Judgment of the General Court (Sixth Chamber) of 30 April 2019.#Union des Ports de France - UPF v European Commission.#State aid – Corporate tax exemption scheme implemented by France in favour of its ports – Decision declaring the aid scheme incompatible with the internal market – Existing aid – Concept of economic activity – Obligation to state reasons – Distortions of competition and effect on trade between Member States – Principle of sound administration.#Case T-747/17.