There is still a steady supply of pilots heading to China from the USA, EU, India and the Sand box. It has slowed down down from what I hear.
It is a problem for a high time FO to upgrade in China you just have to check the different agents to see if they can make you a deal. It is not impossible but difficult.
there is one company called Eagle Jet International
Eagle Jet International, Inc. out of Miami, Florida that offers an FO time in type package of 300 to 500 hours from the initial type rating. They don't advertise it but may have a deal that can be worked out for a A-320 high time FO to get the Capt. PIC time. Just call them an ask.
Good luck I hope this helps...!!