Originally Posted by
trueblu
1. Permanent residents are treated as Chinese citizens for taxation purposes: in common with US, but almost no other country, Chinese citizens/ PRs are taxed on world-wide income, i.e. OP's non-China income would become subject to Chinese taxation (double taxation treaties etc notwithstanding).
Most countries tax their residents on worldwide income, regardless of citizenship or permanent residence status.
What the US but almost no other country does, is to tax its citizens even if they live outside the US. I don't think the PRC does that (provided the person doesn't have a place of abode in the PRC)?