China Domestic Market
* Required Information
You'll have to conduct some due diligence if you really need to find out who makes wigs for this specific company. One option is to hire a a China due diligence firm to find out who the supplier(s) of this specific company are. There's a directory of China due diligence firms at http://chinaduediligence.com .
Of course, as a first step you can always search the HKTDC sourcing website for wig makers in China and contact them to see whether they are making wigs for this specific company. Ask for a reference from the customer to make sure they supplier is telling the truth. If this doesn't work you'll probably need to hire someone with people on the ground in China.