Customs district code
Auto-assigned by the GACC system at filing.
报关单
Customs declaration field helper
Field-by-field reference for the China customs declaration. Cross-checks the data the broker enters against your commercial invoice, BL, and packing list.
Pre-entry number
Internal reference used by the customs broker (报关行) when preparing the declaration.
Consignor or consignee
For exports, the Chinese exporter; for imports, the Chinese importer. Must match the company on the SAMR registration. USCC required.
Filing unit
The customs broker filing on behalf of the exporter / importer. Different from field 3 unless the exporter is self-filing.
Means of transport
Sea / Air / Rail / Road / Post / Pipeline. For sea export, "海运" (2).
Vessel name and voyage
Vessel name + voyage number. Must match the BL.
Bill of lading number
BL number from the carrier. Match the actual BL exactly.
Port of loading or destination
UN/LOCODE or GACC port code. For Shanghai export to Houston: 起运港 CNSHA, 目的港 USHOU.
Consignor or consignee abroad
For export, the foreign buyer. For import, the foreign seller. Names + country.
Trade mode
一般贸易 (general trade, code 0110), 加工贸易 (processing trade), 暂时进出 (temporary import/export), and 30+ others. Most chemical exports use 一般贸易.
Levy mode
Whether duty is normal, exempt, reduced, etc. Most chemical exports: 一般征税 (normal levy).
Final destination country
For exports. Use the GACC country code.
Country of origin
For imports. Country where goods originated, not where shipped from.
Filing date
Date the declaration is filed in the GACC system.
Customs entry / exit date
Date the goods physically cross the border. For exports, the vessel sailing date.
Goods description and HS
Product name in Chinese + 10-digit HS code. Must match the commercial invoice and the BL cargo description.
Quantity and unit
Net quantity in the unit specified by the HS code. For most chemicals: kilograms.
Total value (CNY)
For exports, total FOB value in CNY (converted from USD at GACC mid-rate of the day).
Currency code
Currency code per the GACC schedule (modern GACC declarations align to ISO 4217 numeric codes: USD = 840, EUR = 978, CNY = 156; legacy schedules used the GACC-internal codes 502, 142 etc. which are now the COUNTRY codes, not currency). Verify against the GACC code list current at filing date.
Origin (per item)
Origin per line item. For Chinese-origin chemicals, 中国 (China, code 142).
License number
For controlled exports (precursor chemicals, dual-use, military). Not required for general chemical exports.
报关单 in chemical-trade context
The China customs declaration is the master document for any cross-border movement of goods. For chemical exporters, the declaration carries the HS classification that drives the export VAT rebate, the trade mode that determines whether the cargo enters under general trade or one of the bonded-trade variants, and the buyer-side data that customs at destination cross-references against the BL. Mistakes on the declaration ripple downstream: over-claimed rebate gets clawed back during GACC audits, mis-stated trade mode triggers reclassification, mis-spelled buyer name causes destination customs holds.
For most chemical exporters, a licensed customs broker fills the declaration. The exporter side reviews and signs off. This guide gives you the cross-reference between each field and where the data should come from in your source documents (commercial invoice, BL, packing list, supplier business licence). Use it to verify what the broker has entered before signing off.
Common watch-outs: BL number on field 7 must match the BL exactly; HS code on field 16 must match the commercial invoice and the packing list; cargo description in Chinese on field 16 must be specific enough that GACC can confirm the HS classification (vague descriptions trigger HS queries that delay clearance).
Frequently asked
What is 报关单 (the China Customs Declaration)?
The customs declaration filed with GACC (General Administration of Customs of China) for every import or export. The form has roughly 50 fields in the standardised layout; this guide covers the 21 most-asked-about for chemical-trade exports.
Who fills in the declaration?
A licensed customs broker (报关行 baoguan hang). Self-filing exists but requires a specific license (报关员 baoguan yuan, customs declarant). For most chemical exporters, a third-party broker handles the filing.
Why does the HS code on the declaration matter?
The HS classification drives the export VAT rebate rate (出口退税率) and any export licensing requirements. A misclassification at filing leads to either over- or under-claimed rebate, both of which cause GACC audit risk and potential clawback.
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