Supplier Due Diligence Checklist
Use this before payment or onboarding.
Factory review
How buyers should combine factory visits and document verification in China supplier due diligence.
A factory visit answers what you saw. Document verification answers who owns the transaction.
A visit can confirm production activity, equipment, staff, and sample handling. It may not confirm legal entity, payment beneficiary, exporter role, ownership, or litigation risk. Buyers need both when exposure is meaningful.
Build the buyer file around four records. First, it names the exact Chinese legal entity and any English trading name used in the conversation. Second, it stores the transaction documents: quotation, invoice, contract draft, payment instruction, product sheet, and email chain. Third, it records the outside signal reviewed, including source date and the name searched. Fourth, it ends with a short decision note that finance, procurement, and management can read without reopening every attachment.
Keep contradictions visible. If the invoice issuer differs from the factory, write that down. If the bank beneficiary changed after the first quote, keep both versions. If the supplier gave a broad answer instead of a document, record the answer and the follow-up request. This makes the review useful during approval, shipment, or dispute handling.
A good visit reduces operational uncertainty. It does not replace entity and payment checks.
When the supplier changes a material, site, process, subcontractor, or test document, record the old and new facts. The change resets the question the original approval answered. Record the result beside the current order. The named scope is Factory visit versus document verification in China.
For the production question in this article, match the claim to the product version, production site, batch, test date, and responsible party. A certificate or sample is useful only when the buyer can show which goods it covers. Keep the finding next to the document that triggered the check. The named scope is Factory visit versus document verification in China.
When the supplier changes a material, site, process, subcontractor, or test document, record the old and new facts. The change resets the question the original approval answered. Write the unresolved part in the decision note. The named scope is Factory visit versus document verification in China.
Sources reviewed: Reviewed China supply-chain visibility research and applied it to factory-claim verification. Source background.
Treat this as a buyer-side risk note. Use qualified advice for legal, customs, sanctions, or financial decisions.
It should identify the product version, production site, batch or order, test date, issuing party, and requirement it supports. Scope: Factory visit versus document verification in China.
Match the claim to the legal manufacturing entity, site, process, and documents for the goods under review. Scope: Factory visit versus document verification in China.
Recheck after a change to the site, material, process, product version, test record, subcontractor, or remedy. Scope: Factory visit versus document verification in China.
Use this before payment or onboarding.
Keep a record that finance and management can review.
Choose the right depth for the decision.
For this topic, keep the review tied to the actual order rather than a general supplier profile. In the case of Factory visit versus document verification in China, the buyer should write down the exact decision it needs to make: whether to pay, sign, ship samples, accept a document, or escalate the file for management approval.
The buyer should separate the selling party from the party that controls production, quality, export documents, and after-sales support. A trading company, export agent, subcontractor, and factory can all be legitimate, but the buyer needs to know which one carries each obligation before payment.
Ask for a written role map if the records point to multiple companies. The map should name the legal seller, production site, exporter of record, certificate holder, and payment beneficiary. That record reduces confusion when the buyer later checks defects, shipping delays, customs questions, or warranty claims.
Save the rejected route beside the accepted proof. When the supplier avoids the company name or sends a mismatched document, record the gap in the buyer file. The refused answer matters because it explains the buyer's control point.