Commission Implementing Regulation (EU) 2021/1474 of 14 September 2021 extending the definitive anti-dumping duty imposed by Implementing Regulation (EU) 2015/2384 and Implementing Regulation (EU) 2017/271 on imports of certain aluminium foil originating in the People’s Republic of China to imports of certain aluminium foil consigned from Thailand, whether declared as originating in Thailand or not