I am sure this will turn into a huge debate into whether pilots are actually needed but here is their site. I hasten to add in my experience and having just spoken to my dad who is based there and has been for 20 years there has been a big increase in "foreign" pilots flying airliners within China recently.
http://www.airchina.com.cn/en if you click on employment it states "No want". You may be able to find some other contact details from there.