Commission Implementing Regulation (EU) 2023/1649 of 21 August 2023 initiating an investigation concerning possible circumvention of the anti-dumping measures imposed by Implementing Regulation (EU) 2021/1930 on imports of birch plywood originating in Russia, by imports of birch plywood consigned from Türkiye and Kazakhstan, whether or not declared as originating in Türkiye and Kazakhstan, and making imports of birch plywood consigned from Türkiye and Kazakhstan subject to registration