Hi,
I'm interested in this TASK, I have experience in sourcing and media purchsing. I know the ads industry in China also, because i was a media buyer of an Israeli Game Studio as a freelancer few months ago.
My bid is for 20 companies info who integrate ads and marketing business, 10 in Beijing and 10 in Shanghai.
I will send you a list in Excel format with all info you want.
For initiation of projetc, deposit a milestone is necessary.
Best regards,