@livinginchina, at this point, mandatory vaccination across the board for Chinese and foreigners alike is purely speculative. I wanted to confirm the validity of a claim made by my Chinese English teacher friend, who, being a public school teacher and working for the government may in fact have been obligated to receive his shots. However, as I've pointed out already, I decided to do a little bit of research and already found the answer I was looking for:
China does theoretically have a mandatory vaccination law - here is the proof:
Here is the English version of the Vaccines Administration Law in China: file:///C:/Users/guysr/AppData/Local/Temp/Vaccines%20Administration%20Law%20in%20China.pdf
And here is an article about some parts of China trying to implement compulsory Coronavirus vaccinations on the entire adult population, which was halted by the government:
Despite all this, I think at this point, it is unlikely we'll be seeing "mandatory" vaccination except for certain types of work perhaps, and possibly for a while, foreigners' work permits.
If you don't want to be vaccinated, I would urge you to find ways of getting out of the obligation rather than blindly complying (again, for the foreseeable future, there is nothing to worry about). You may not even be eligible, depending on your health status. China has been quite reasonable in this regard from the documents I've read.