Chinese semiconductor thread II

[Michael90]

But then the american sanction hit it and almost decimated it (layoffs and stopping factory expansion etc, early 2023 and I think even the CEO had to step down due to having american Green Card).

Wow...never knew that. Why did he step down just because he had American green card? I know the US forbid any American citizen or green card holder from working in any Chinese tech company sanctioned/blacklisted by the U.S . However, I still think he could have carried on working for the company. The worse that could happen is losing his green card. Unless he couldn't risk losing that just for the company.