Case C-891/19 P: Judgment of the Court (Third Chamber) of 20 January 2022 — European Commission v Hubei Xinyegang Special Tube Co. Ltd, ArcelorMittal Tubular Products Roman SA, Válcovny trub Chomutov a.s., Vallourec Deutschland GmbH (Appeal — Dumping — Implementing Regulation (EU) 2017/804 — Imports of certain seamless pipes and tubes originating in China — Definitive anti-dumping duty — Regulation (EU) 2016/1036 — Article 3(2), (3) and (6), and Article 17 — Determination of injury — Examination of the effect of dumped imports on the prices of like products sold on the EU market — Analysis of price undercutting — Application of the product control number (PCN) method — Obligation of the European Commission to take into account the different market segments relating to the product under consideration and all sales of like products by the sampled EU producers)