CZ the CEO of Binance has addressed on both Slack and Telegram that they are not a Chinese exchange therefore they are not under China's scrutiny or regulations. They had an issue with the some of their listings because they were Chinese ICO coins but once those coins either got delisted or had to follow the strict refund guidelines business went on as usual.
Good news, people thought it would be affected by the China ban but it will not close down as it has international servers. The price of BNB is going up and trade volume on the exchange is increasing. A good time hold some binance coins