Every shipment of building materials from China travels with a core document set: the commercial invoice, the packing list, the bill of lading, and usually a certificate of origin. Everything else depends on your destination and your product. Any discrepancy between the first three is the most common cause of avoidable delay at customs.
These documents are not administrative overhead. The bill of lading is title to your goods. The commercial invoice determines what duty you pay. The packing list is what a customs officer reconciles against a physical count. Getting them wrong costs storage, demurrage and time.
The core set
| Document | Issued by | What it does |
|---|---|---|
| Proforma invoice | Supplier | The commercial agreement your PO and deposit are based on |
| Commercial invoice | Supplier | Basis of customs valuation and duty calculation |
| Packing list | Supplier | Carton counts, weights, dimensions — reconciled against physical cargo |
| Bill of lading (B/L) | Carrier or forwarder | Contract of carriage, receipt for goods, and document of title |
| Certificate of origin | Chamber of commerce or authorised body | Establishes origin for duty treatment, including preferential rates |
Documents that depend on your destination or product
- Conformity or performance declarations — where the product category requires them
- Test reports — fire, structural, slip resistance, safety glass, electrical
- Fumigation or phytosanitary certificate — where wood packaging or wood products require it
- Insurance certificate — under CIF and CIP terms
- Inspection certificate — where your contract or the destination requires third-party inspection
- Preferential origin certificate in a specific form — where a trade agreement provides a reduced rate
- Import licence or permit — for regulated categories in some destinations
Which of these apply is a question for your customs broker in the destination country, established before the enquiry rather than at the port. Requirements vary considerably and change.
Related: Product certification and compliance when importing from China
The three documents that must agree exactly
The commercial invoice, the packing list and the bill of lading describe the same cargo three times. Customs authorities compare them. Where they disagree, the shipment stops while someone explains why.
These fields must be identical across all three:
- Shipper name and address
- Consignee name and address
- Product description
- Number of packages
- Gross and net weight
- Total value and currency
- Marks and numbers on the cartons
- Port of loading and port of discharge
The most common failures are a weight rounded differently on two documents, a product description written in marketing language on one and technical language on another, and carton counts that were correct at the packing list and changed when the goods were consolidated.
Check the drafts before the originals are issued. Amending a bill of lading after issue is possible but slow and chargeable; amending one after the vessel has sailed is worse.
Bill of lading: the one that is title
The B/L is the document you cannot afford to be casual about, because in its negotiable form it is title to the cargo. Whoever holds the original endorsed set can claim the goods.
| Type | How it works | Note |
|---|---|---|
| Original B/L | Issued as a set of originals; one must be surrendered to release cargo | Strongest control; must be couriered |
| Telex release / surrendered | Originals surrendered at origin, cargo released against identity at destination | Faster; you lose the document-of-title control |
| Sea waybill | Non-negotiable; consignee named and takes delivery on identification | Suits related parties or established relationships |
| Master vs house B/L | Master issued by the carrier; house issued by the forwarder | Know which you hold and who you are claiming against |
Where payment terms link the balance to a B/L copy, the mechanism only works with an original B/L set. A telex release removes the leverage.
Related: China supplier payment terms: deposit, balance, T/T and L/C explained
Certificate of origin and duty
The certificate of origin states where goods were produced. It matters for two reasons: some destinations require it for clearance regardless, and where a trade agreement between China and your country provides a reduced duty rate, the preferential rate is typically conditional on a valid certificate issued in the correct form.
Two practical points. First, obtain it at shipment — retrofitting a preferential origin certificate after arrival is often impossible, and the duty saving is then simply lost. Second, confirm with your broker which form your destination requires, because a general certificate of origin and a preferential one under a specific agreement are different documents.
This article is not customs or legal advice. Documentary requirements, tariff treatment and preferential origin rules are jurisdiction-specific and change. Confirm current requirements with a licensed customs broker in your destination country.
Related: How to calculate landed cost on building materials imported from China
Description and HS code on the invoice
The product description on the commercial invoice drives the tariff classification, and the classification drives the duty. Two failure modes are common.
A description too vague to classify — “building materials”, “hardware” — invites the customs authority to classify it themselves, usually not in your favour, and invites inspection.
A description that does not match the goods is worse. Under-declaring value or misdescribing goods to reduce duty is a customs offence in most jurisdictions, and the importer carries the liability, not the Chinese supplier who typed the invoice. If a supplier offers to write a lower value on the invoice, decline.
Agree the description and the classification with your broker, then instruct the supplier to use exactly that wording.
Documents on a consolidated multi-supplier shipment
Where one container carries goods from six factories, the document problem changes shape. Six commercial invoices and six packing lists have to be reconciled into one coherent set that matches one bill of lading and one physical container.
This is where consolidated shipments most often go wrong — the cargo is fine, the paperwork does not add up, and the container sits at destination while it is untangled.
Assembling that set correctly is part of what JEES Global handles on a consolidated order: invoices and packing lists checked against each other and against the physical cargo before loading, markings verified against the packing list at inspection, and one reconciled document pack issued against the container. It runs across all 19 material categories.
Related: FCL vs LCL for construction material shipments · One-stop vs multi-supplier sourcing
Frequently asked questions
What documents do I need to import building materials from China?
At minimum a commercial invoice, packing list and bill of lading, usually with a certificate of origin. Additional conformity documents, test reports and permits depend on your product category and destination — confirm with your customs broker.
What is the difference between a proforma invoice and a commercial invoice?
The proforma invoice is issued before the order as the commercial agreement and basis for payment. The commercial invoice is issued with the shipment and is what customs values the goods on.
Why is my container held at customs?
Most commonly a discrepancy between the invoice, packing list and bill of lading, a vague or incorrect product description, a missing conformity document, or untreated wood packaging.
Can the supplier put a lower value on the invoice?
Do not accept this. Under-declaration is a customs offence in most jurisdictions and the importer carries the liability, not the supplier.
Who prepares the export documents?
The supplier or their export agent prepares the invoice and packing list; the carrier or forwarder issues the bill of lading; a chamber of commerce or authorised body issues the certificate of origin. Your job is to check they agree before originals are issued.
Ask about documents for your country
Send your material list with the destination country and port. The document requirements will be confirmed per category, and the shipment pack assembled and reconciled before the container is sealed.