Is there any chance of Chinese gov interference, or copy cats? Are you 100% protected from some sweat shop taking about your design and selling it for less? We have a flood of copy cat products here in the USA. Or the gov taking your business? I'm sorry I do not know how things work in China.
The chance of Chinese gov making action is small, or at least not significant higher than that of governments in US or EU.
By copycats, you might mean one of the several following possibilities:
1. chip reverse engineering from our buyers.
2. foundry stealing our design.
3. foundry employees leaking our design privately.
All of the three will not make the copycats' lives much easier than ours. Because unlike software, the copycats will also spend the same amount of money as NRE. There's no way that they could just duplicate our chips using magic devices. Plus, our foundry accepts lots of orders of taping out embedded-CPUs each month, and many of them involve ~2M$ worth of bought IPs (ARM architecture), so we expect that 2 and 3 is very unlikely happen to us, and if it does happen, there will be much more people (cellphone and pad manufacturers) worrying about them with much more money.
Thanks for your question.