Commission Implementing Regulation (EU) 2021/1820 of 18 October 2021 amending Implementing Regulation (EU) 2017/325 imposing a definitive anti-dumping duty on imports of high tenacity yarns of polyesters originating in the People’s Republic of China following an expiry review pursuant to Article 11(2) of Regulation (EU) 2016/1036 of the European Parliament and of the Council