Independent eyes on your goods and factory when you can't be there yourself.
The short answer
A third-party inspection uses an independent agency — not you, not the supplier — to check goods or audit a factory against your spec and an AQL plan. For a modest fixed fee it gives you objective eyes on the ground, which is essential when you cannot inspect in person.
Figure summary: The main steps are: choose inspection agency; define checklist & aql; inspector visits factory; report with photos; decide ship or rework. Sequence and detail vary by product and supplier; verify the supplier and sample before committing to a bulk order.
Why independence matters
The supplier has an interest in shipping; you can't be on the factory floor. A third-party inspector sits outside both, checks against your spec and golden sample, and reports what they actually find. That independence is the whole value — an inspection run by the supplier is not really an inspection.
Types of third-party inspection
Pre-shipment inspection (PSI) — the finished, packed order before it ships
During-production inspection (DUPRO) — early output on large or complex runs
Container loading check (CLC) — the right goods and quantity actually loaded
Factory audit — capacity, systems and compliance, independent of any single order
How to book and brief one
Book through an inspection agency, give them your spec, golden sample photos, AQL levels and a checklist of what matters, and coordinate the date with your supplier. The clearer your brief, the more useful the report — an inspector can only check what you told them defines "correct".
Cost, and reading the report
Inspections are charged at a fixed fee per inspector-day — small against most order values. The report gives an accept / reject result plus photos and defect counts by class. Read it against your AQL: a "reject" or unresolved critical defect is your cue to hold the balance and the shipment until it is fixed.
Vet the supplier first
Quality control starts with a legitimate supplier. Score yours free.
For most importers, yes. A fixed per-day fee is a small fraction of an order and far cheaper than receiving a defective shipment you can no longer refuse.
What is the difference between an inspection and a factory audit?
An inspection checks the goods of a specific order; a factory audit checks the supplier's capacity, systems and compliance independent of any one order. Large or ongoing buyers use both.
Can the supplier arrange the inspection?
It should be independent. An inspection organised and paid by the supplier loses the objectivity that makes it worthwhile — book a genuinely third-party agency yourself.