That is not a correct paraphrase of what chenzhekl wrote. Perhaps there is a rule that prevents someone in China from implementing any algorithm they want to i

That is not a correct paraphrase of what chenzhekl wrote. Perhaps there is a rule that prevents someone in China from implementing any algorithm they want to implement with any number of bits they want to use, but that rule would hardly be an "import control", which is what the linked article is about.