Importers and exporters shall submit the following documents when declaring customs:

1. Customs declaration for import and export goods. Generally imported goods should be filled in two copies; goods that need to be written off by the customs, such as processed trade goods and bonded goods, should be filled in three copies of the special declaration form; goods that need domestic tax refund after export, should be filled in another special declaration form for tax refund.

2. Invoice of goods. Requirements are less than one copy of the customs declaration form. The export of goods is entrusted to foreign sales. The settlement method is to settle the settlement with the exporter according to the actual sales amount after the sale of the goods. Export declaration may be exempted.

3. Land waybill, air waybill and bill of lading for import and export by sea. After examining and inspecting the documents, the Customs shall sign and return the customs tribute on the original cargo manifest to pick up or ship the goods accordingly.

4. Packing list of goods. The number of copies is the same as the invoice. However, bulk cargo or single-item cargo with the same packaging content can be exempted from delivery.

5. Verification and cancellation of export receipts. When declaring all export goods, the written-off form of export receipts with the stamp "Supervised Collection of Foreign Exchange" should be submitted to the foreign exchange management department, and the written-off number should be filled in the upper right corner of each export declaration form.

6. When the Customs considers it necessary, it shall also submit a trade contract and a certificate of origin of the goods.

7. Other relevant documents. Include:

(1) Goods approved by the Customs for tax reduction or exemption shall be certified by the Customs for tax reduction or exemption. Foreign-funded enterprises in Beijing shall also submit a list of imported equipment approved by the Customs.

(2) Goods imported and exported under processing trade contracts that have been filed with the Customs shall be submitted for inspection to the "Registration Manual" issued by the Customs.