For long time now there is many articles about Chinese exchange, they use the customer funds to gamble on high risk speculation. The Chinese exchanges, the other ones they all close down before ban, or China close them down on September. But OKCoin and Huobi can stay open longer for unknown reason. Actually there were reasons some were speculated. But they not make sense.
What will happen with these two exchanges? I think the reason they stay open is because right now they not have the customer funds to pay back.
I can only speculate that the government is somehow lenient to this 2 trading platform simply because they do not have trading pairs for ICO tokens which the Chinese has banned recently. That's why it looks like they will be allowed up until October or followed the new guidelines being set up by the authorities. For me, the ban is already in full effect that's why the other exchanges either voluntarily ceases its operation or an order has been given to them already.