Purchased export means that a company without export rights buys someone else's verification form and exports in the name of another import and export company for the convenience of the shipper. The foreign trade company cannot receive the money at all. On the premise of securing the customer, the foreign exchange is still remitted to the account designated by the shipper. This is called paying the bill. Generally, they are packed together with other goods, and there is no tax refund for paying the bill.

China's foreign exchange control requires that whoever exports will receive the US dollars back and write them off. For example, if I use Company A's verification form to export, Company A must recover the corresponding U.S. dollars; but if you choose to pay for export, the U.S. dollars will not be remitted to the foreign trade company that provides the verification form. This is Caused foreign exchange chaos. If you use company A's verification form to export, and the US dollars are remitted to company A, it is a * (export agency), which is a legitimate operation. This is the difference between agent export and paid export.