Ok time to take the pink shades off.
How do you expect an airline in a China to count as 121?
Part 91, 135, 121 are all US (FAA) regs.
So 1000 SIC in China does NOT count towards the 121 requirements for upgrade to PIC.

China is brutal.
From 3 guys that I know that tried for PIC 737 none made it.
Two didn’t make it through the astronaut medical and the last one washed out in the sim.
Crew members are expected (required) to report any deviations from SOP/FOM etc etc etc.
There’s no such thing as calling in “fatigued” and calling in sick requires a doctor.
No union, no rights, you’re a hired minion.
Now on the bright side, as PIC life’s significantly better but you’re still only there because they need you not because they want you.

Now I do have a buddy that has lived and flown in China for the last 10-12 years, mostly as PIC.
Absolutely loves it but even before had a thing for Asia and travelled there extensively so very familiar with culture etc etc etc.
Why don’t you jumpseat on an ACMI flight to China and spend a week traveling around?
I could live there but it’s not for everyone.