chinese traffic is very hard to monetize - despite how many of them supposedly have access to the internet. sedo is one of the more international parking companies, although you still might be only making yuans on there instead of dollars. if anything, you should probably spend more time optimizing keywords and categories than parking companies. give sedo a shot for a month or two, and if it's absolutely brutal then you could try another one. don't expect to be making much from chinese traffic though.