The first hurled you must pass is to have an invitation to come to China in a non-airline aircraft. The invitation must come from the Chinese government or a Chinese company.
If you obtain such an invitation, then contract with an international handler to arrange all the other details, which are numerous.
There is no such thing as VFR flying in China, at least not that I know of. Strict observance of on staying on the airways is mandatory.
Can it be done, not sure to tell the truth, but it will take a lot of lead time and it will be expensive, that you can count on.
Since my last flight into China in a corporate aircraft, Falcon 50EX, I understand things have become somewhat easier.
So my advice it is to first contact an well known international handler and go from there.
The best of luck to you and if you do get to go, have a great time.
