I came across this interesting article from Austrian Futurezone citing some leaked document from the Chinese government and what exchanges have to do after shutting down:

https://futurezone.at/digital-life/chinesische-bitcoin-marktplaetze-stellen-lokalen-handel-ein/286.960.398

If your German is not too good, you might be delighted to hear that one of the steps is to hand over all information about their costumers to the Chinese Government. I hope no one has given them any important data.

Also very interesting: China has only banned _local_ trades of Bitcoin in Yuan, but has left international trades legal. Why might that be?