How to Book a Product Inspection in China (Step by Step)

Booking your first product inspection in China is simpler than it looks, but the difference between a useful inspection and a wasted one is decided before the inspector ever sets foot in the factory. The booking is where it happens: the details you provide, the standards you set, and the instructions you attach are what turn a site visit into a report you can act on.

This is a practical walkthrough of the whole process. If you want the background on which inspection type fits your situation, that's covered elsewhere. Here we deal only with the mechanics: how to choose a booking channel, what to prepare, how to write a briefing that produces a useful report, how timing works, how payment is handled, and what to do once the report lands in your inbox.

First-time buyers sometimes hesitate because the process feels opaque from abroad. It isn't. Most inspections are booked by email or through an online platform, firms can usually have an inspector at the factory within a few days, and you never need to be there yourself. CN Ally, the China sourcing agent behind this blog, arranges inspections for importers who'd rather not manage the back-and-forth themselves. Whether you book direct or through an agent, the steps below are the same.

How far in advance do you need to book?

The standard lead time is a few business days. The working rule: give at least 3–5 business days' notice before your desired inspection date. That gives the firm time to assign an inspector with the right product expertise and coordinate with the factory.

Some firms move faster. QIMA, one of the largest inspection platforms, guarantees an inspector on-site at any factory within 48 hours of booking and delivers the report the same day, all managed through their myQIMA online platform. NBNQC states inspectors can be dispatched within 36 hours of booking, with reports delivered within 18 hours. Asia Quality Focus (AQF) similarly arranges pre-shipment inspections within 48 hours and releases reports in under 24 hours.

A few practical notes on timing:

• Peak season books up. Before Christmas production, Chinese New Year rushes, and major trade fair cycles, inspectors are stretched thin. Give a full week or more.
• Remote factory locations take longer. If your supplier is far from major manufacturing hubs, allow extra days for travel.
• Your booking is only as fast as your paperwork. Firms can't schedule until they have the factory address, product details, and your standards. Have everything ready (the next section covers exactly what's needed) and the booking itself can take minutes.

Booking direct vs. booking through your sourcing agent

This is the first decision, and most guides skip it. You have two channels:

Book direct with an inspection firm · Book through your sourcing agent

• **How it works**: You choose a firm, create an account or email them, and manage everything yourself · Your agent selects the firm, books, briefs the inspector, and handles follow-up
• **Cost**: Standard firm pricing, transparent · Often bundled with other services; standalone booking may include a coordination fee
• **Effort**: You prepare the dossier, brief the inspector, and read the report · Agent does the legwork; you review summaries and decisions
• **Flexibility**: Full control over which firm and which standards · Less choice, but the agent knows which firms perform well in which industries
• **Best for**: Buyers who want control, repeat bookers · First-time importers, buyers with several suppliers, anyone short on time

Neither is universally better. If you're booking your first inspection and don't know the product category well, going through an agent has a real advantage: agents know which firms have inspectors specialized in your product type, and they handle the awkward parts, like telling a supplier their goods will be inspected or chasing a factory that won't confirm a date.

If you prefer control, booking direct is straightforward. Larger firms like QIMA, SGS, Bureau Veritas, and Intertek have English-language booking platforms and standardized reports. China-focused firms like InTouch Quality and V-Trust are popular with smaller importers for competitive pricing. The catch: you're responsible for the briefing dossier, and a thin briefing produces a thin report.

The deciding question is simple: do you have the product knowledge to write a good inspector briefing? If yes, book direct. If not, or if you'd rather not, route it through an agent.

What to have ready before you book

An inspection firm can't schedule anything until it has the basics. Gather these first, and the booking collapses to a single email or one online form:

• Factory name, full address, and contact person. Street address, the contact's name, phone number, and email or WeChat. The firm uses this to confirm the visit directly with the factory.
• Product details. Name, SKU or model numbers, materials, colors, sizes. If there are multiple variants, list every variant separately with quantities per variant.
• Total order quantity and packing. Units per carton, total cartons, pallet count if applicable. This determines the sampling plan.
• Your purchase order. Attach the PO or at least the key terms: what was ordered, at what price, with what delivery terms.
• Product specifications. The single most important attachment. If you have a proper spec, it becomes the reference the inspector checks against. If you don't, fix that gap; our guide on writing a product specification your QC team can use covers it.
• Your AQL levels. The sampling standard that decides how many units are checked and how many defects are tolerated. Not sure what to set? See how to set an AQL standard.
• Reference photos or video. Photos of the approved sample, key features, labels, packaging. Ask your supplier to keep the physical approved sample at the factory for comparison.
• Specific on-site tests. Function tests, measurements, carton drop tests, barcode scans. List them explicitly.
• Defect classifications. What counts as critical, major, and minor for your product. If you don't define this, the inspector applies their default judgment.

Save this as a reusable template. Once you've built the dossier for one order, booking the next inspection is mostly copy and paste.

How to brief the inspector (this is where reports are made or broken)

Here's the part competitors gloss over, and it matters more than anything else in this guide. The inspector is not a mind reader. They check what you tell them to check, with the strictness you tell them to use. A vague briefing produces a vague report; a precise briefing produces evidence you can negotiate with.

A strong briefing contains four things.

The criteria, item by item. Don't write "check product quality." Write: "Measure the silicone case against spec drawing v2.1, tolerance ±0.5 mm. Check that the USB-C port clicks firmly on insertion; loose ports are a major defect. Confirm the printed logo is centered within 2 mm and matches Pantone 186C." Every line should describe something the inspector can observe and score.

The defect severity rules. State explicitly which failures are critical, major, and minor. Critical defects (safety hazards, products that don't work at all) should carry zero tolerance. Major defects might be capped at your AQL level, commonly 2.5 on consumer goods. Minor defects get the lenient band. Write this in the booking; don't assume the inspector's default matches your expectations.

What's out of scope. Just as important as what's in scope. If there are cosmetic variations you've already accepted, say so. If a test needs lab equipment the inspector won't have on-site, don't request it in the briefing; order lab testing separately. Explicit scope boundaries prevent both over-strict rejections and missed checks.

Photos of the reference standard. Include photos of the approved sample with annotations: "this is the correct shade of blue," "stitching should look like this." Inspectors compare against a visual reference far more reliably than against written descriptions alone.

One more point worth stating in the booking: the inspector must select the sample independently and at random, not accept pre-selected units from the factory. Professional firms follow ANSI/ASQ Z1.4 (ISO 2859-1) sampling standards as a matter of course, but stating it explicitly removes any ambiguity.

When to schedule the inspection in your production timeline

Booking isn't just about lead time; it's about picking the right moment:

• Pre-shipment inspection (PSI): the most common type, scheduled when 80–100% of the order is complete and packed. Your last checkpoint before shipment and payment. Book as soon as your supplier confirms a ready date, not after.
• During-production inspection (DUPRO): scheduled when roughly 15–50% of the goods are produced, to catch problems while there's still time to fix them.
• Initial production check (IPC): right as production starts, verifying materials and setup before volume accumulates.
• Container loading supervision: scheduled for the loading date itself. Book it when the freight booking is confirmed.

A common rookie mistake: booking the PSI for the day before the container is supposed to leave. If the inspection fails, you have no time to rework and no leverage, because the shipping deadline forces your hand. Schedule the PSI with at least a few days of buffer before the ship date, and read our guide on what happens when a product inspection fails so you know your options in advance.

How payment works

Payment terms vary by firm, but the pattern is consistent:

• When you pay: most firms require payment before the inspection, often at booking, sometimes after the report is delivered. Larger firms with online platforms process payment at booking time.
• How you pay: bank transfer, credit card, or PayPal are typical for international clients. Some firms accept payment through their online portals; smaller firms may invoice by email.
• Who pays: the buyer, almost always. Suppliers are not expected to pay for your inspections. Some buyers negotiate inspection costs into the contract, for instance making the supplier pay for the re-inspection if the first one fails, but the initial booking is on you.
• What it costs: see our breakdown of what quality inspections cost in China if you're budgeting. Typical pre-shipment inspections run a few hundred dollars per man-day.

If you're booking through a sourcing agent, inspection fees are often rolled into the agent's service package or billed as a pass-through cost. Clarify this upfront so the invoice matches your expectations.

Tell your supplier the right way

Once booked, inform the supplier. This isn't optional etiquette; it's practical. The inspector needs factory access, and unannounced visits don't go well.

• Tell them early. As soon as the date is confirmed, let the supplier know a third-party inspector will visit on that date. A week of notice is courteous and standard.
• Be matter-of-fact. Frame it as your normal process, not suspicion: "As with all our orders, our QC partner will conduct a pre-shipment inspection before final payment." Experienced suppliers expect this; it's a sign of a serious buyer, not an accusation.
• Confirm the readiness date. Get the supplier to confirm in writing that the full order will be finished and packed by the inspection date. This written commitment also matters if the schedule slips.
• Ask them to prepare the approved sample. The inspector will compare production units against the approved reference.
• Don't let them pre-select units. The inspector picks samples independently. Reputable suppliers know this. If a supplier resists independent sampling, that itself tells you something.

Receiving and reading the report

Reports typically arrive within 24 hours of the inspection, some firms faster. QIMA delivers same-day reports through their online platform; NBNQC commits to 18 hours. The report is usually a PDF with photos, sometimes with an online dashboard view.

How to read it:

1. Start with the overall result. Pass, conditional pass, or fail. But don't stop there; the overall verdict is a summary, not the decision.
2. Go through the defect log. Every defect found should be listed with photos, classified as critical, major, or minor. Compare the counts against your AQL thresholds.
3. Check the photos yourself. Photos are the evidence. Zoom in. If a "major defect" photo looks like a scratch you'd accept, your severity definitions may need adjusting next time.
4. Read the inspector's notes, not just the checkboxes. Notes often contain observations that don't fit the checklist: packaging that seems thin, a production process that looked rushed, a factory area the inspector wasn't allowed into.
5. Act within the window. A failed report starts a clock: hold the shipment, hold the final payment, and contact the supplier with the report attached. The full playbook is in our guide on what happens when a product inspection fails.

Keep every report. Over time they become a quality history for each supplier, invaluable when you're deciding whether to reorder, renegotiate, or switch.

Frequently asked questions

How much notice does an inspection company need in China?

Most firms ask for 3–5 business days' notice, and it's wise to allow a week during peak production periods. Some larger platforms can dispatch an inspector within 48 hours of booking. The binding constraint is usually your paperwork; the firm can't schedule until it has the factory address, product details, and your standards.

Can I book an inspection if I don't have product specifications?

You can, but the inspection will only be as good as the criteria you provide. Without specifications, the inspector falls back on their default checklist and judgment, which may not match your expectations. At minimum, provide an approved sample (physical or well-documented photos), a list of critical features, and your defect tolerances.

Do I need to be present at the inspection?

No. The inspector goes to the factory on your behalf and sends you the report with photos, typically within 24 hours. That's the point of a third-party inspection: professional eyes on the ground without the plane ticket. Your job is the briefing before and the decisions after.

Should I tell the supplier about the inspection in advance?

Yes. Inform the supplier as soon as the date is confirmed; it's standard practice, and the inspector needs factory access. Present it as your normal process for all orders. But be clear that the inspector selects samples independently; don't let the factory pre-select the units to be checked.

Can I book multiple inspection types for one order?

Yes, and for larger or riskier orders it's common to combine them: a during-production inspection plus a pre-shipment inspection, or a pre-shipment inspection plus container loading supervision. Book each at the right production stage (DUPRO at 15–50% complete, PSI at 80–100% packed). Costs and lead times are per inspection.

What happens if the factory refuses entry to the inspector?

This is rare with established suppliers, and a refusal is itself a signal. Contact the supplier immediately, restate that inspection is part of your standard process and a condition of final payment, and reschedule. If the factory still refuses, treat it as a serious red flag; a legitimate factory has no reason to block an inspection. Discuss it with your agent, or consider switching suppliers.

Your 10-minute booking plan

If you have an order in production right now, here's the sequence:

1. Decide your channel. Booking direct gives control; booking through an agent saves time and expertise. Choose based on whether you can write a solid inspector briefing.
2. Assemble the dossier. Factory address and contact, product details, quantities and packing, PO, specifications, AQL levels, reference photos, required tests, defect severity rules. Reuse the template from your last order.
3. Write the briefing. Item-by-item criteria, explicit severity definitions, stated scope boundaries, annotated reference photos.
4. Pick the date. PSI at 80–100% packed, with several days of buffer before the ship date. Allow 3–5 business days' notice, more in peak season.
5. Book and pay. Online platform or email; payment typically at booking.
6. Notify the supplier. Matter-of-fact, in writing, with a request to confirm the ready date and keep the approved sample on hand.
7. Read the report the day it arrives. Verdict first, defect log and photos second, inspector's notes third. Then act: release, negotiate, or hold. Keep the report for your supplier's quality history.

Booking an inspection is the cheapest leverage in your supply chain. A few hundred dollars and one good briefing buy you documented evidence of what you're paying for, before the money and the goods cross paths. If you'd rather have someone manage the whole cycle, write to hi@cnally.com and ask about inspection coordination.