What should you verify on a China manufacturing floor?
Verify the legal entity, in-house production, machine fit, real capacity, QC visibility, sample control, subcontracting, traceability, workforce stability, storage discipline, and live records. Use this as a buyer-side verification checklist. It is a sourcing screen, not a regulatory audit.
| Checkpoint | What to verify on site | Why it matters |
|---|---|---|
| 1. Company name match | Chinese legal name on signage, license, chop, and bank docs | Identity mismatches set the burden of proof |
| 2. Business license | Original or current copy with unified social credit code | Confirms the entity you are dealing with appears to exist |
| 3. Production type | Factory, trader, or mixed model | Sales claims often blur this |
| 4. Product line fit | Machines and workflow match your SKU category | Capability should be visible on the floor |
| 5. Capacity reality | Active lines, shift pattern, WIP volume, output pace | Quoted capacity is easy to overstate |
| 6. QC system | Incoming, in-process, and final inspection points | Quality control should appear in process, not only in files |
| 7. Golden sample handling | Retained approved sample and version control | Sample drift starts when reference control is weak |
| 8. Subcontracting exposure | Which steps are done in-house vs outside | Hidden outsourcing changes risk and lead time |
| 9. Traceability | Batch labels, carton coding, raw material lot tracking | Weak traceability makes defect containment harder |
| 10. Workforce stability | Operator count, line supervision, training cues | High churn can show up on the floor before it shows in defects |
| 11. Safety and housekeeping | Basic order, material flow, storage discipline | Disorder is not proof of failure, but stacked disorder is a warning |
| 12. Records consistency | PO records, inspection logs, production boards | Weak suppliers often break down when records do not agree |
Compact red-flag decision checklist
Pause the order if two or more of these appear on the same visit:
- Legal name, chop, or payment entity does not match
- Claimed in-house steps are not visible on the floor
- Capacity claims do not match active lines, WIP, staffing, posted shift pattern, or changeover pace
- QC exists in files but not in live production
- Approved sample cannot be produced quickly
- Subcontracting is disclosed vaguely or only after probing
- Lot labels, carton codes, or production records do not line up
How do you verify the legal entity first?
Start with the company name, not the product.
The business license, factory sign, company chop, and payment entity should point to the same legal counterparty. A mismatch does not prove fraud. It sets the burden of proof. The stranger the match, the more evidence the supplier needs to show.
In China, buyers commonly use public company-registration records, including SAMR-linked records accessed directly or through local databases, as one reference point to cross-check entity details. If the on-site entity name and the pre-visit paperwork do not line up, pause the deal until they do.
Are you visiting a factory, trader, or hybrid?
This is where buyer assumptions break.
Suppliers may own part of production and outsource the rest. Others are traders with one assembly room for show. That structure is not automatically bad. Hidden structure is bad.
Ask one direct question: which production steps for this SKU happen in this building, and which happen elsewhere? Then walk the sequence. If injection, assembly, packaging, and testing are all claimed in-house, the floor should show all four.
Quick check on site:
- Ask for the exact production steps for your SKU
- Walk those steps in sequence
- Note which steps are visible in this building
- Flag any step that is described vaguely or moved off-site
Do the machines and workflow fit the product?
A factory visit should make the product believable.
If you are buying kitchen tools, small electronics accessories, or home goods, the line should show the machines, fixtures, jigs, packaging flow, and in-process material that match that category. Cluster geography does not prove capability. It sets the burden of proof.
A supplier can be located in the right industrial region and still be brokering your order elsewhere. Treat that as a sourcing signal, not a verdict. For a related screen before the visit, see Agence Octo’s guide to how to verify a China supplier.
Does current activity support the capacity claim?
Quoted monthly output is one of the easiest numbers to inflate.
Count active machines. Look at work-in-progress. Ask about shift count, peak season staffing, current utilization, posted line targets or hourly output boards, and how often the line changes over between SKUs. A factory claiming 100,000 units per month should show a floor rhythm that makes that claim plausible.
Do not anchor on one answer from sales. Ask the production manager and line supervisor separately. Weak suppliers rarely fail because one document is missing. They fail because the documents and the floor do not agree.
Is QC visible inside the process?
A quality table near the exit is not enough.
You want to see incoming material checks, in-process checks, and final inspection records tied to a live order. Published factory-audit and inspection materials from major firms such as SGS, Intertek, and Bureau Veritas commonly emphasize process evidence, records, and on-site observation rather than presentation alone.
This is a sourcing signal, not certification of quality. It indicates whether quality appears to be built into production or inspected in at the end.
Can the factory show approved sample control?
A sample order tests existence. It does not test repeatability.
On site, ask where the approved sample is stored, how it is labeled, who can change it, and whether packaging artwork versions are logged. If the team cannot produce the reference sample quickly, sample drift risk is higher. Weak packaging version control can also increase the risk of artwork or labeling inconsistencies in bulk production.
Where is the subcontracting boundary?
Seller-reported and practitioner-reported sourcing discussions describe factories assigning overflow steps to partner workshops during busy periods. This appears common enough to plan against, but it is not well measured in official market-wide statistics.
The problem is not subcontracting by itself. The problem is undisclosed subcontracting on quality-sensitive steps. Ask which parts are outsourced, who controls inspection there, and whether your PO permits it.
Is traceability visible on the floor?
Look for lot labels, operator marks, carton coding, and material status tags.
If a defect appears later, traceability is what can help a supplier isolate the problem instead of reworking or disputing the entire batch. This is especially important for repeat orders where packaging dates, cartons, and component lots can mix.
What do the people signals tell you?
Machines do not run themselves.
Count operators per line. Look for line leaders. Ask how long the current team has been on that product. Practitioner-reported sourcing discussions in public forums describe factories that looked capable on paper but appeared to rotate temporary labor heavily before peak shipments.
That does not prove a bad factory. It is a signal to inspect earlier and tighten pilot-run controls.
Is storage discipline under control?
Raw materials, semi-finished goods, and finished cartons should be separated and labeled in a way that makes sense.
Mess alone is not proof of failure. But mess stacked with weak labeling, no version control, and vague answers about rework is a common floor-control warning in practitioner-reported sourcing discussions.
Can the factory show one live production record?
Ask to see one current order packet or production board.
You are looking for dates, quantities, QC status, and whether the line can explain what is being made now. A factory visit is strongest when paperwork and floor activity match in real time.
What is the contradiction test before you leave?
Before you leave, write down every claim that needs to agree later: lead time, MOQ, monthly capacity, in-house steps, key machines, QC points, and subcontracted stages.
Then compare those notes against the quotation pack and post-visit follow-up. The visit itself is not the verdict. The consistency after the visit is the verdict.
What this checklist is for
The Agence Octo 12-Point Floor Check is not about catching one dramatic lie. It is about reducing false confidence.
A polished visit can still hide weak process control. A modest factory can still be the right supplier if the floor, records, and answers line up. Watch the stack, not any single signal.
If you are vetting a new China supplier, Agence Octo SAM helps surface these patterns during supplier verification. See the supplier verification service for China sourcing.
By the Agence Octo team.