When Search Engine Optimising a Chinese website for the main Chinese search engine Baidu, there are benefits to having a .cn domain name and having a server located within the Great Firewall of China.
From what I understand the Chinese government censors web pages by intercepting the connection between a server and the end user. If a web page does not pass their censorship then the page could be edited or not displayed to the user.
Whilst having an SSL certificate protects users data it can stop the Chinese government from censoring individual web pages so if a page does not pass censorship then a whole website may be blocked. Therefore, you may want to consider your SSL set up carefully and whether you will force HTTPS when setting up a server within the Great Firewall of China.
Useful Article: https://jpgamboa.com/ssl-usage-china/