There are five types of sockets in use, one in Hong Kong/Macau, two in Taiwan, and the other two on mainland China. Here they are in pics so you can choose the adapter you may need.

Posts from an Australian lost in the Middle Kingdom
There are five types of sockets in use, one in Hong Kong/Macau, two in Taiwan, and the other two on mainland China. Here they are in pics so you can choose the adapter you may need.