Judgment of the Court (Eighth Chamber) of 10 March 2021.#Von Aschenbach & Voss GmbH v Hauptzollamt Duisburg.#Request for a preliminary ruling from the Finanzgericht Düsseldorf.#Reference for a preliminary ruling – Definitive anti-dumping duty – Aluminium foil originating in China – Slightly modified aluminium foil – Implementing Regulation (EU) 2017/271 – Admissibility – No action for annulment brought by the applicant in the main proceedings – Locus standi in an action for annulment.#Case C-708/19.