Judgment of the Court (Seventh Chamber) of 2 October 2025.#MET Magyarország Energiakereskedő Zrt. and Global NRG ROM SRL v Magyar Energetikai és Közmű-szabályozási Hivatal.#Request for a preliminary ruling from the Fővárosi Törvényszék.#Reference for a preliminary ruling – Internal market in natural gas – Regulation (EU) 2017/460 – Natural gas transmission system – Reference price methodology – Paragraph 35(1) – Exemption for contracts concluded before 6 April 2017 which foresee no change in the levels of transmission tariffs except for indexation – Concept of ‘indexation.#Case C-369/24.