Pre-Shipment Inspection vs Factory Audit in China: Which One You Actually Need
A factory audit asks whether the supplier can make your product properly. A pre-shipment inspection asks whether they did, this time. Buying the wrong one at the wrong moment is one of the most common ways sourcing budgets get wasted.
Buyers use these two terms as if they were the same purchase. They aren't. A factory audit asks can this supplier make my product properly? A pre-shipment inspection asks did they, this time? One protects the relationship, the other protects the container. Buying the wrong one at the wrong moment is one of the most common ways money gets wasted in sourcing.
Factory audit: before you commit
An audit happens before the order — ideally before the deposit. An auditor spends a day inside the plant: counting machinery, checking whether your product category is genuinely produced there, reviewing QC records and calibration, interviewing the owner, and matching the site to the business licence. The output is a judgement about capability and risk.
What it catches: trading companies posing as factories, rented showrooms, capacity that can't support your volume, a quality system that exists only on the certificate, subcontracting you weren't told about.
What it can't catch: whether the goods sitting in the warehouse three months later match your spec. An audit is about the factory, not the shipment.
Typical cost: $749 with us; $1,200–$2,500 with the large inspection firms; $3,000+ if you fly yourself.
Pre-shipment inspection: before you pay the balance
A PSI happens when production is 80–100% complete and before the balance payment is released. An inspector pulls a random sample against an AQL standard (usually AQL 2.5 for major defects), checks workmanship, dimensions, function, labelling, barcodes, packaging and carton drop, and reports pass or fail with photos.
What it catches: wrong colour, wrong material, missing certifications on the label, short quantity, defective units, packaging that will fail in transit.
What it can't catch: that the supplier is not the factory, that the factory is in litigation, or that your moulds are sitting in someone else's workshop.
Typical cost: $250–$400 per man-day in China.
Which one you need, by scenario
- New supplier, first order over ~$10,000: audit first. Paying for a PSI on a supplier you haven't verified is inspecting a shipment from a company you can't sue.
- Existing supplier, repeat order: PSI only. The capability question is already answered.
- New supplier, small trial order under ~$5,000: desk verification ($129) plus a PSI. The trial order is your audit.
- Custom tooling or private label: both. Audit before the mould is cut, PSI before the balance.
- Quality problems on the last shipment: audit — the shipment was a symptom, the system is the cause.
- Retail or Amazon compliance requirement: audit with a social compliance section, then PSI each shipment.
The sequence that actually works
- Desk verification ($129). Licence, court records, tax rating, factory vs trading company. An hour of work that kills most bad deals.
- Factory audit (from $749). Only if the paperwork passes and the order justifies it.
- Contract under Chinese law. Naming the entity from the licence, with the right chop.
- Pre-shipment inspection. Every shipment for the first year, then risk-based.
Buyers who skip step one and start at step four pay for inspections on shipments they should never have ordered.
A note on inspection theatre
Some suppliers offer to arrange the inspection for you, or recommend an inspector they "already work with". Politely decline. The value of both an audit and a PSI comes entirely from independence — the inspector must be paid by you, report to you, and have no relationship with the factory. If the factory picks the inspector, you've bought a document, not information.
We only ever work for the buyer. If you want the audit half of this done properly, here's what a factory audit covers — and if you're going yourself, take our 42-point checklist with you.