They're still mining like mad, there must be many thousands of people who hold some BTC still.
How are they trading? Is there masses of OTC and P2P? Is it possible for them to get on Korean and Japanese exchanges?
Many predicted that after their big fat congress they'd reinstate some sort of exchange functionality. That doesn't appear to have happened.
Will they go for a full clamp down including attempting to squash non centralised trading?
Looking at the amount of trade offers on localbitcoins that involves the payment method fo eiher wechat pay, chinese national bank transfer, or alipay, it is clear to me that a lot of people in china has moved to p2p trading.
Also wouldn't be surprising at all if people now had wechat groups that specialise in selling/buying of bitcoin.
Of course, if they have connections they can use the other asian exchanges as well in Japan/Korea. But to my knowledge that is not a big trend. So i would say that majority of volume has simply gone p2p, and china is still with us "invisibly".
https://coin.dance/volume/localbitcoins/CNY/BTCSorry but I don't see that volume, there was a quick rise to 4000 btc from 1000 but it is slowly back to normal levels.
Also the largest volume was in March so there is no correlation with the ban.
My theory is that the big whales have either move their trading accounts abroad or they just quit, they will not risk their fortune in China.
Moving millions via national bank transfers in China? That is asking to be part in a one of their stadium mass "corrections".
The small ones are just doing playing pennies on wechat and shaking in fear from knocks at the door.
But I doubt that trading right now in all of China comes to even 1% of the numbers Huobi and the rest were lying to the world with.