2. Foreign trade-related certificates are popular, such as exporter's certificate, customs broker's certificate, inspector's certificate and single certificate. Among them, if you are doing foreign trade in a company, the exporter's certificate can be linked to this, but companies that recruit foreign trade personnel rarely require this, so it doesn't matter whether you take the exam or not. As for customs declarers and inspectors, if you work in a customs broker or a freight forwarding company, you need these two certificates, but if you do foreign trade in the company, you don't need them at all. Voucher certificate is the same as export certificate. The company doesn't ask many questions, so it doesn't matter whether you take the exam or not. -