The goveenment has already issued regulations to exchanges that they should not accept new deposits or registrations on their websites.
The reason why ban imposed exchanges are still live in chaina is only for serving withdrawals to their clients.
Now i get it. I am also being curious towards the actions of Chinese governments upon banning cryptocurrency. For me it doesn't really makes sense that they will actually ban it permanently, and besides there are so many crypto users, traders and investors in that specific region and area, and still i was thinking that it wont be permanent ban.