我最近也是遇到一个美国客户要这个,我问了客户为什么要这个,你看客户的回复,也许对你有帮助:We ask for a W-8 BEN from companies that not located in the US. Hong Kong is definitely not part of the US. W-8 BEN is used for entering the Vendor into Netsuite. If the Vendor is not in Netsuite I can not write a PO. Furthermore, the W-8 BEN is a SOX requirement in order to enter a vendor.