I only know of one location in Shanghai, a city of 24 million people that has film. So I have to stock up real well when I go there as it is many miles from my house. I sure miss the days of easy film access.
I just checked B&H... you could buy this....
http://www.bhphotovideo.com/c/product/29165-USA/Kodak_1067214_TX_35mm_100_Roll.html
and it costs $50 for 3-5 day shipping to china...
Yes that's a lot for shipping, but buy a few can's of it, or stock up with that and PanF+ or whatever else you use that comes in bulk, and have it shipped, get a years worth of film, it will cost you more than the travel to that city and probably cheaper than buying from there anyway. Just a suggestion.

