China is now really playing some kind of its game on lowering the rate of the crypto currency. Perhaps this only coincided in time, because there are really objective reasons for tightening the ICO measures and they are ripe. But what is behind the closing of crypto-exchange exchanges, we'll see in the future.
They want control and a large piece of the money-pie, that's all
Looks the price already rise again but they are not want to control the bitcoin but they are want to regulate the ico, Because the ico hasn't banned in there according the latest statement from the regulators in pboc site.