You don't need to work in China (proper) for good flying salaries. I couldn't think of anything worse! Yuck.
But you need to get pretty close!
I work for a rather large airline in a former British colony
and just put in my tax return that shows taxable earnings of 260,000 US dollars (154,000 GBP)!
Oh, and I'm an F/O doing about 8 sectors a month, with around 18 days off per month!
I can't think of anywhere else that pays that sort of coin. Still, I hate my employer!