There certainly is are quite a few 747-400 cargo operators in China that are hiring expats.
Jade Cargo in Shenzhen is affiliated with Lufthansa
Great Wall Airlines in Shanghai affiliated with Singapore Airlines Cargo
Yangtze River Express in Shanghai
and
Air China Cargo in Beijing
A good friend is interviewing with Jade later this month. I'l post what his impressions are after he gets back.
Typhoonpilot