It's good that you have brought this up again. One of my sites is also not accessible from China while the other is. I am based in Shanghai too.
Here is my network. (accessible)
Here is another one. (not accessible for two weeks now)
I submitted a ticket, there was a little follow up and I was told that the network was moved to another Ip where it should be accessible but nothing changed. Right now I am considering may be I should close down the other network since they say they can't do anything about it. It's terrible !!!
Is the problem solved or still pending??
I haven't been on this site for quite some time......