Pre-shipment inspection in China: what it covers and when to book it

A pre-shipment inspection is a check on finished goods before they leave the supplier, while you still have leverage and the factory still has the goods. Its value is almost entirely in the timing: the same defect found after arrival is a return shipment, a delay and an argument.

Where it sits among the other checks

Pre-shipment is the one most people book, and often the only one. For a first run with a new supplier, a during-production check usually earns its cost — finding a wrong component on day two is cheap, finding it on the whole run is not.

What an inspection actually checks

• Quantity. That the count matches the order.
• Workmanship. Visual and functional defects against agreed criteria.
• Specification conformity. Dimensions, materials, colour and components against your approved sample.
• Function. Whatever the product is supposed to do, done on a sample of units.
• Packaging and labelling. Retail packaging, barcodes, care labels, cartons and shipping marks.
• Documentation. That what is in the cartons matches what the paperwork says.

Packaging is the category most often underestimated. A product can be perfect and still be unsellable because a barcode does not scan or a required label is missing, and that is discovered at the destination warehouse rather than in China.

Sampling, and what AQL means

Inspectors do not check every unit. They check a statistically chosen sample and apply acceptance limits, which in most of the industry means the AQL tables — a standard set of sample sizes and defect allowances, split by how serious each defect is.

Two things are worth understanding about that. First, a passed inspection does not mean zero defects; it means defects stayed inside the limit you agreed. Second, the limit is a choice you make, not a fixed property of the check. We go through the tables properly in AQL inspection in China.

AQL levels are common industry practice rather than a legal standard, and different buyers set them differently. Agree yours in writing with the supplier before production, not after.

Writing acceptance criteria a stranger can apply

This is where most inspections lose their value. An inspector who has never seen your product can only check it against what you have written down. "Good quality" is not checkable. These are:

• An approved physical sample, held by both sides, referenced by the inspection.
• Photographs of acceptable and unacceptable finishes, with the difference stated.
• Dimensions with tolerances, not target numbers alone.
• A defect classification: which faults are critical, which major, which minor.
• Packaging and labelling artwork, with the barcode to be scanned as part of the check.

The defect classification is the one that prevents arguments. Whether a scratch is a minor defect or a major one decides whether a run passes, and that is not a judgement to leave to the moment.

When to book it

Book it when production is substantially finished but before the balance is paid and before freight is booked. Both halves matter: payment is your leverage, and an unbooked shipment is a shipment that can be delayed without cost.

Booking after a vessel is reserved reverses the pressure. The cost of holding the goods starts pushing towards shipping them, which is exactly the pressure the inspection existed to resist.

What to do when a run fails

• Find out whether it is systematic or scattered. A consistent fault is a process problem; scattered ones are a handling or sorting problem. They have different remedies.
• Ask for a rework plan with a date, not an assurance.
• Re-inspect after rework. A rework nobody verified is a claim.
• Decide about partial shipment deliberately. Shipping the good units and reworking the rest is sometimes right and sometimes splits one problem into two.

Agreeing in advance who pays for rework and re-inspection is worth more than any clause added afterwards. It is also the question that tells you most about a supplier, asked before you place the order.

Third-party inspector, agent, or your own team

A third-party inspection company is independent and priced per man-day; it is a good fit when you have a supplier you trust and want verification. An agent who inspects has continuity — the people checking know the product and the history — provided they are paid by you and not by the factory. Your own team is best and rarely proportionate below significant volume.

Whichever you choose, the question to settle is the same one: who does the inspector work for, and what is their interest in the run passing?

Where Neofulfill fits

We inspect in China before goods ship, on the same account as the sourcing and the freight. That matters at the point of failure: the shipment has not left, the balance has not necessarily been paid, and the people who found the factory are the people reporting the defect.

Quality control and production follow-up describes the service. If you are still choosing a supplier, China sourcing comes first.