Yan Luo, Eric Carlson and Zhijing Yu of Covington & Burling write:
On October 26, 2019, China enacted a landmark Encryption Law, which will take effect on January 1, 2020. The Encryption Law significantly reshapes the regulatory landscape for commercial encryption, including foreign-made commercial encryption products, but leaves many questions to be answered in future implementing regulations. In this blog post, we provide a few highlights of the new Encryption Law as enacted.
Read more about it on InsidePrivacy. There is also a Q&A about the law , provided by the government (also in Chinese)