The private sector is opening up slowly. There are already helicopter schools in Guangdong province (inland from Hong Kong) and the airspace over a large section of that province was released last year by the PLA to civil operations up to 950m. I have heard of other provinces that are doing the same.
EMS has a big future in China, but you will have to spend a lot of money to get it established and integrated with the hospital system. Look to a timeframe of ten years and be very careful with your joint venture partner. They are not there to make a profit for you.
I look at the Pearl River estuary and see an area crying out for heli-ops- short distance, high value pax, distributed business centres but it is slowly slowly.
First get your contacts, plough a lot of money in, discover that your contacts do not have the contacts they say they had, lose aforesaid money, start again wiser, and maybe make a business.
It's a trial, but it's all part of pioneering, and you wouldn't be dead for quids.
FWIW