Customs clearance documentation consists of two sets: export declaration documents for the country of origin (China) and import clearance documents for the destination country. Missing or incorrect documents can lead to consequences ranging from delays to the return of goods. Hardware structural components are standard industrial products; while the document checklist is relatively standard, accuracy in declaration elements is crucial.
This article breaks down the requirements for both sets of documents.
I.
China Export Declaration Documents (Five Basic Items + As-Needed Items)
According to Article 8 of the “Provisions of the General Administration of Customs of the People’s Republic of China on the Administration of Declaration of Import and Export Goods” (GAC Decree No. 277), export declarations must be accompanied by: 1) the contract (sales confirmation); 2) the invoice (commercial invoice specifying product name, quantity, unit price, total price, and trade terms); 3) the packing list (number of packages, gross weight, net weight, volume, and shipping marks); 4) the cargo manifest; and 5) the bill of lading (or transport document). Additional documents may include an agency agreement (if a customs broker is commissioned) and import/export licenses (for regulated goods).
Declaration elements include the goods’ name, specifications/model, quantity, value, country of origin, and trade mode. For hardware components, these elements—such as material, specifications, and intended use—must be declared truthfully (e.g., “Stainless steel stamped part 304 / thickness 1.5mm / for machinery housing”), ensuring consistency between the documents and the cargo manifest data.
II. Additional Documentation for Goods Subject to Inspection, Quarantine, and Control
Certain goods require a prior inspection declaration to obtain an electronic export record and inspection/quarantine certificates (e.g., sanitary certificates, phytosanitary certificates) before customs declaration can proceed. For exports subject to dual-use item controls (such as the 2026 regulations covering drones, lathes, milling machines, grinding machines, etc.), technical specifications must be attached, and the full legal name of the overseas consignee must be declared. For hardware items—if classified as machinery components or controlled goods—regulatory requirements should be verified prior to export.
Additionally, for goods eligible for export tax rebates, retain the customs declaration form, commercial invoice, and proof of foreign exchange receipt as supporting documentation.
III.
Documentation for Import Customs Clearance in the Destination Country
The five core documents for import clearance are: commercial invoice, packing list, bill of lading (B/L), certificate of origin, and VGM.
Additional requirements vary by market: the EU requires a Declaration of Conformity/CE Certificate (e.g., EN1090 for steel structural components; fasteners are assessed against relevant directives); the Southeast Asian market offers preferential tariff rates via the FORM E (ASEAN-China) certificate, while South Korea and others accept certificates under their respective FTAs. Wooden packaging (pallets, wooden crates) must bear the ISPM 15 IPPC mark; Chinese Customs (under the “Administrative Measures for the Quarantine and Supervision of Wooden Packaging of Inbound Goods”) mandates immediate disposal of unmarked wooden packaging, and the US APHIS is also intensifying enforcement in 2026, rejecting shipments lacking the mark.
For goods requiring an import license in the destination country (applicable to certain hardware categories in some nations), the buyer must arrange for this in advance.
IV. Key Points for Document Preparation
First, ensure document consistency: the product name, quantity, weight, and shipping marks across the invoice, packing list, customs declaration, and cargo manifest must match perfectly; even a single-letter discrepancy could trigger an inspection. Second, conduct advance reviews: submit the complete set of documents to the customs broker or destination port agent for pre-screening before shipment, ensuring any necessary amendments are made prior to departure. Third, utilize electronic declaration: submit declarations via China’s “Single Window” system and upload supporting documents in accordance with customs announcements. Fourth, retain originals: keep original paper documents on file for potential review and ensure electronic documents match the paper versions.
Industry experts note that the essence of customs clearance documentation is “convincing customs that the declared goods match the actual cargo”—with consistent documents, accurate declaration elements, and all required special certificates, hardware shipments are typically released within 1–2 working days;
if documentation is incomplete, however, the wait time could be indefinite.
