Maybe the folks at ajarn.com (their twitter feed or facebook page) can help out. They focus on Thailand but since people do go from there to China regularly (as next opportunity) they can maybe bring you in contact with their Chinese counterpart?
Ajarn.com is an expat teacher community in Thailand, not an agency or anything.
#2flijten has been a member since 19/12/2016. Location: Netherlands. Posts: 80