In China, you will probably do all of the above in WeChat rather than email. Whenever I need to conduct business with someone in China, it's always over WeChat

In China, you will probably do all of the above in WeChat rather than email. Whenever I need to conduct business with someone in China, it's always over WeChat rather than email. One of the Chinese court systems actually sends notifications through their WeChat account. I believe there are even pilot programs where you can initiate court cases through WeChat as well.