BTCC has made a clear statement regarding this...
A group of regulators consisting of the SH branch of PBOC, the SH Financial Affairs office & other related govt agencies visited BTCC. During this visit, we followed up on prior discussions and shared details about our business model and operations with the group. We expect to continue with additional meetings later this week. All operations at BTCC are normal and we continue to actively work with regulators to ensure that we remain compliant. In the meantime, we urge our customers to take a rational & cautious view to news articles which speculate on the visit and discussions.
Source:
https://twitter.com/YourBTCC/status/819159971564662784