Yes, what happens to US investment if the CCP steps and and takes over? Why would the CCP refund US investment? Investments come with risk and investing in Chinese companies have this extra bit of risk. The investors can cry about it, but they should have known it as a possible outcome for that investment.

BYTE is a Chinese company: it is co-managed by the CCP by definition and the CCP can and has been able to override the company leadership at anytime it sees fit. Investors knew about this risk from day one and knew that any invested capital would be under effective CCP management. In practice, the CCP has an interest in the growth of the company, however state priorities, like intelligence gathering have precedence.

No one/company should have any expectation of privacy or security when doing business with any company operating in China, Hong Kong, or Macau.