You found the supplier on a platform, or an agent sent you a shortlist of four. The profile pages look almost identical: factory photos, export badges, fifteen years of experience, a wall of certificates. Nothing on the page tells you whether the company runs a production line or takes your order and places it somewhere else.
The cost of getting this wrong shows up late. The deposit is paid, the sample was fine, and then the price you agreed turns out to have had a margin inside it that nobody mentioned. By the time you compare notes with another buyer, the order is already in production.
Verification is a filter you run before a supplier reaches your quotation stage. Most of the checks below are public, free, and take about twenty minutes per company.
Check the invoicing entity on the business license for a manufacturing scope, and ask for its own MOQ and tiered factory price; a reseller can quote neither.
How do I screen a Chinese supplier using public business records?
Every legally registered company in China appears in the National Enterprise Credit Information Publicity System.1 That entry is not a marketing profile. It is the company's own filing to the market regulator, and it is the first thing to read.
Work through five fields in this order, the same way a market regulator reads them.2
Registered name and unified social credit code. Confirm the entity exists and that its registration status is active. If a manufacturer from a recommendation list does not appear in the system at all, stop there. Those lists are frequently assembled without a registration check, and a name that returns nothing cannot be verified later either.
Industry classification. This field places the company in a national economic sector. Manufacturers sit under manufacturing; companies that buy and resell are classified under wholesale and retail. The classification is a coarse signal rather than proof, and it is often the first visible divergence between two suppliers that both describe themselves as factories.
Business scope. Read it line by line for the words that mean production of your product, not the words that mean sales. A scope built entirely around wholesale, retail, and import-export describes a trading company. A scope that names manufacture of the relevant product category describes a company at least licensed to produce it.
Registered address. An industrial park address is consistent with a plant. An office tower, a residential building, or an address that turns out to sit inside another company's registered compound is not.
Annual report and social insurance data. Annual reports carry headcount and, where disclosed, social insurance participation. Two cautions. Headcount and insured headcount are different figures and are not interchangeable. And disclosure is uneven, so read an empty field as unknown rather than as zero.3
| What you read on the registry | What a factory usually shows | What a reseller often shows |
|---|---|---|
| Industry classification | Manufacturing sector | Wholesale and retail sector |
| Business scope | Names manufacture of the product | Names only sales, wholesale, import-export |
| Registered address | Industrial zone or its own compound | Office building, or inside another company's site |
| Annual report headcount | Tens upward | A few, or not disclosed |
| Product-related patents or software copyrights | Design or utility patents in the category | None, or filed under an unrelated entity |
Read the scope before you read the certificates
Certificate images cannot be verified from a profile page. The entity record can. Start where verification is possible, and check patents and software copyrights by company name in the national intellectual property database: design and utility patents in your product category are difficult to produce without an actual design and engineering function.
What questions can only be answered by the factory that runs the line?
The fastest separator is not a document. It is a question whose answer requires owning equipment. Ask these, and notice whether the answer arrives immediately or after a delay.
What is your own MOQ for this item on a first order? A factory answers from its own minimum run length. A reseller answers from its supplier's, which is usually higher, and it will typically route the question upward before replying.
Which production steps do you do in-house, and which are outsourced? A factory names the specific operations and the specific workshop. A reseller tends to answer in category terms.
What is the unit price at 1,000, at 3,000, and at 10,000? A factory has its own break points and can quote all three without pausing. A reseller's cost only moves when its supplier's tiers move, so its ladder is either flat or has fewer steps.
What is your lead time from material arrival to finished goods, and which component is the bottleneck? There is no generic answer to this. It requires knowing the line.
If the dimensions are out of tolerance, who signs the rejection, and against what test method? A factory names a person and a method.
Can I see the line? Not a video, and not a promotional clip: a live walk-through of the specific line that will run your order, with the machines visible.
A trading company is not automatically the wrong choice. There are categories where a consolidator adds real value, particularly small, mixed, long-tail orders. The problem is structural rather than moral: you cannot audit a line you are not shown, and you cannot tell whether the price you are paying contains a margin you were told was not there.
How does a supplier's quotation reveal whether it owns the production line?
Ask for the quotation in a specific shape, then read what comes back.
Request a line-by-line breakdown: material, labour, tooling, packaging, testing. A factory can name its own material grade and its own machine time. A quotation that arrives as a single lump sum, or as a lump sum plus freight, is a forwarded price rather than a costing.
Ask for the tooling charge as a separate line, and ask who owns the mould. A factory knows what a mould costs on its own equipment. A reseller has to obtain that number first, and the delay is visible in the reply.
Ask what changes if the quantity doubles. A factory answers with a tier and names the reason, such as a moulding cycle or a material buy. A reseller has to consult upstream and often returns with "let me check".
Ask which cost items are priced in RMB and which in USD. The answer shows whether the supplier is quoting from its own cost base or converting someone else's number.
Ask for the tolerance the line can hold. A factory answers against its process capability. A reseller repeats whatever the catalogue says.
| Signal in the quotation | Read as |
|---|---|
| Itemised material, labour, tooling | Costed by the party doing the work |
| Single lump-sum figure | Either a simple product or a forwarded price; ask for the build-up |
| Tiered unit price with named break points | The supplier's own cost structure is moving |
| Flat unit price across all quantities | The supplier's cost is set somewhere else |
| Tooling quoted against a specific machine | Own equipment |
| Immediate answers on cycle time and tolerance | Direct line knowledge |
How do I confirm all of this before I pay a deposit?
By the time you reach payment, every earlier check converges on one question: does the entity receiving the money match the entity you screened?
Match the invoicing entity. The proforma invoice name, the bank account name, and the registry entity should be the same company. A mismatch is the strongest single signal available to you. If the invoice is issued by one company and payment is requested into another company's account, the chain breaks at exactly the point where your legal recourse would sit.
Ask for bank details in the registered company name. A request to pay an individual's account takes the payment off the company's books, and it removes most of your practical remedies if the order goes wrong.
Put tooling ownership in writing. State who owns the mould, who may move it, and on what terms.
Fix acceptance criteria in the purchase order. Not adjectives such as high quality, but measurable values per dimension plus the test method that decides pass or fail.
Agree the inspection method before production, not after. Who inspects, at which stage, against which sampling standard, and who signs the report.
Conclusion
Verification is a sequence, not a document. Read the registry first, ask questions that require equipment second, read the shape of the quotation third, and only then let the supplier reach the payment stage.
None of these checks needs a factory visit, and none of them needs a fee. What they need is the same order every time, and treating a mismatch anywhere in the chain as a stop rather than a detail.
The buyers who avoid the expensive surprises are not the ones with the longest questionnaire. They are the ones who ran the filter early, while switching suppliers was still cheap.
Footnotes
- State Administration for Market Regulation national registry of enterprise credit information. Each company entry carries registration status, industry classification, business scope, registered address, and annual report data. ↩︎
- Beijing Municipal Market Supervision Administration guidance on how to query an enterprise's public information and what each disclosure item does and does not show. ↩︎
- Shenzhen Municipal Market Supervision Administration list of annual report disclosure items, including the social insurance fields and how participation is reported. ↩︎
