Documents Required for Customs
Essential export/import customs documents and additional requirements for special goods, with the full declaration process.
Basic Export Documents
Documents required for every export declaration
Commercial Invoice
Shows exporter/consignee details, product name, HS code, quantity, unit price, total amount, trade terms and origin. Amounts must match the declared value — no under/over-valuation.
Packing List
Lists per-carton details: carton no., product, quantity, gross/net weight, dimensions and volume. Must match the invoice.
Sales Contract
The sales contract between exporter and buyer, including terms, payment and delivery date. Customs usually accepts electronic scans rather than originals.
Customs Authorization Letter
Written authorization for the broker to declare on your behalf. Now done electronically via the China Single Window — no paper needed.
Additional Documents for Special Goods
| Goods Type | Required Documents | Issuing Authority |
|---|---|---|
| Preferential tariff | Certificate of origin (CO/FORM A/FORM E, etc.) | CCPIT / Customs |
| Statutory inspection | Export release form / inspection exchange voucher | Local customs |
| Dangerous goods | DG packaging / DG declaration / MSDS / SDS | Inspection / third-party lab |
| Wooden packaging | Fumigation/heat treatment certificate (IPPC mark) | Inspection / fumigation company |
| Food / cosmetics | Health certificate / free sale certificate / ingredient list | Food & Drug Administration / third-party |
| Electronics | 3C certification / energy label (as applicable) | CQC certification body |
| Textiles | Export license (quota in some countries) | Ministry of Commerce |
| Batteries | MSDS + UN38.3 test report | Third-party laboratory |
Declaration Process
Document Collection
Client provides invoice/packing list
contract/declaration elements
Electronic Authorization
Complete electronic customs authorization
via the Single Window
HS Classification
Confirm the HS code
and regulatory conditions
Declaration Entry
Enter customs data in the Single Window
and submit
Customs Review & Release
System review or manual inspection;
ship after release
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