How to Do a China Factory Audit
Before you wire a deposit, verify who you're really dealing with. This is the exact checklist we use to separate real manufacturers from resellers — licenses, capacity, quality, equipment, references, and compliance.
To audit a China factory, verify its business and export licenses, confirm it is the real manufacturer (not a reseller), assess production capacity, review its quality management system and inspection records, inspect equipment and facilities, check export references, and evaluate social compliance and safety. Do it on-site or hire a qualified third-party auditor, then run a pre-production sample check to AQL 2.5 before full production. Watch for firms that refuse visits or hide the factory.
The 8-step factory audit checklist
Work through these in order — each one narrows the gap between a factory's claims and reality.
- 1
Verify legal identity and licenses
Confirm the business license (营业执照), the unified social credit code, registered capital, and — critically — the export license or a customs registration record. A factory that can only sell through a separate export agent is often a smaller workshop than it claims. Cross-check the company name against the entity you're actually paying.
- 2
Confirm it is the real manufacturer
Ask what they actually make in-house versus what they subcontract. A genuine factory will name its core process (injection moulding, stamping, assembly, sewing). Watch for firms offering hundreds of unrelated product categories — that usually signals a trading company reselling other factories' goods.
- 3
Assess production capacity
Record monthly output, number of production lines, workforce headcount, and current utilisation. Compare stated capacity against your order and lead-time expectations. If a plant claims huge capacity but you see idle lines or a near-empty floor, the numbers don't add up.
- 4
Review the quality management system
Look for a documented QMS (ISO 9001 is common but verify the certificate number, scope, and expiry). Check for incoming material inspection (IQC), in-process checks (IPQC), and final inspection (FQC) records. Ask how they handle defects, rework, and customer complaints — and ask to see actual logs, not blank templates.
- 5
Inspect equipment and facilities
Walk the floor. Note machine age and condition, calibration stickers on measuring tools, warehouse organisation, and whether workflow is logical from raw material to packing. Photograph key equipment. Well-maintained, calibrated gear is one of the strongest signals of a serious factory.
- 6
Check references and trade history
Request 2–3 export customers or verifiable shipment records, and ask which markets they already ship to. A factory used to exporting to the US or EU understands compliance paperwork and packaging standards far better than one that only serves the domestic market.
- 7
Evaluate social compliance and safety
Check for basic labour, fire-safety, and environmental practices: marked fire exits, extinguishers, protective equipment, and reasonable working conditions. If your buyers require it, plan for a formal social audit (e.g. an SA8000-style or buyer-specific standard) rather than relying on a walk-through alone.
- 8
Run a pre-production sample and pilot check
Before committing to full volume, secure a golden sample and — where budget allows — a pre-production or during-production inspection to AQL 2.5. Catching a spec deviation on the first run is far cheaper than discovering it after a container ships.
On-site yourself vs a third-party auditor
Most experienced importers combine both — a third-party check first, a personal visit for the finalists.
On-site by your own team
- Direct feel for the people and the plant
- Best for high-value or long-term partnerships
- Costly and slow if you're based overseas
- Easy to be shown a staged tour if you don't know the signals
Qualified third-party auditor
- Repeatable checklist and an unbiased report
- Usually more cost-effective than flying out
- No incentive to help the factory pass
- Local presence catches issues a remote buyer would miss
Red flags & common mistakes
Any one of these should slow you down. Two or more means walk away and get an independent check.
- Refuses an on-site or third-party visit, or insists on meeting only at a hotel or office
- Cannot produce an export license and routes everything through an unrelated "export agent"
- Offers a huge, unrelated product range — a classic trading-company tell
- Certificates with no scope, no number, or a name that doesn't match the paying entity
- Bank account in a different company name than the one on the quotation
- Prices dramatically below every other quote — often a bait for a switch on quality
- Resists any independent inspection or won't share defect and complaint records
China factory audit — FAQ
Don't take a factory's word for it — verify it
We've verified 500+ factories on the ground from our Guangzhou office. Tell us the supplier or product and we'll audit licenses, capacity, and quality, then quote within 24 hours.
Get a factory audit quote