Finding a supplier is easy. Finding one that stays reliable after the first order is the hard part. Here is a practical vetting process, the signals that matter, and how to test a factory before you commit.
Every seller can find suppliers in China. The hard part is finding one that still answers your messages after the third order, holds the same quality level, and tells you about a problem before your customer discovers it.
This is a vetting guide, not a directory.
Start with the specification, not the search
The fastest way to waste three weeks is to search before you know what you are looking for.
Write down:
- Materials, with grades where they matter (e.g. 304 vs 201 stainless, PU vs PVC)
- Dimensions and weight, in metric, with tolerances
- Finish and color, with a Pantone or physical reference
- Function — what it must do, and what it must survive
- Packaging — retail box, poly bag, insert, barcode
- Target cost per unit at your expected volume
- Compliance needs for your market — certification, testing, labeling
- First order quantity and expected monthly volume
A supplier can only quote accurately against a real specification. Vague briefs produce vague quotes, and vague quotes produce disputes.
Where suppliers actually are
B2B platforms. Alibaba and Made-in-China for export-oriented factories. 1688 for domestic wholesale, often cheaper, harder to access. Global Sources and similar for certain categories.
Trade shows. Canton Fair and category-specific expos. Expensive to attend, but you meet decision-makers and can compare twenty factories in a day.
Industry clusters. Most product categories in China are geographically concentrated. Sourcing from within the cluster gives you more supplier options, shorter domestic freight, and a better chance of negotiating.
Referrals. Other sellers in your niche. This is underrated — a supplier another seller already vetted removes most of your risk.
Sourcing agents. They have an existing network and a track record of who delivers. Their value here is speed and filtering, not magic access.
The vetting process
1. Check the business license
Every legitimate Chinese company has a unified social credit code, and you can verify it. Confirm:
- The company exists and the license is valid
- The registered business scope covers what you are buying
- The registered capital is not trivially small for the volume you are ordering
- The company name matches the bank account you are asked to pay
The payment check is the one that matters most. If the beneficiary name does not match the licensed company name, stop and ask why.
2. Establish factory or trader
Ask directly whether they manufacture or trade. Neither is automatically bad:
- Factory: more control over production, better pricing at volume, but narrower product range and less export experience.
- Trading company: wider range, better export paperwork, but a markup and less visibility into production.
What you want to avoid is a trader claiming to be a factory. Ask for photos of the production line, the workshop, and the QC area; ask how many lines they run and what equipment they own.
3. Look at what they have made before
Ask for their experience with your specific product type. A reliable electronics factory is not automatically a reliable textile supplier. Request:
- Photos of previous production runs
- Existing export destinations
- Whether they have produced for your market before — it matters for compliance and packaging
4. Ask the operational questions
These reveal more than the price does:
- What is your production lead time, in days, for this quantity?
- What is your monthly capacity for this item?
- What happens if a defect rate exceeds an agreed threshold?
- Do you have a QC process, and can I see the report?
- Which payment terms do you accept?
- Can you provide test reports or certification for this product?
Vague or evasive answers are information. Write it down.
5. Order samples properly
Order from two or three suppliers. Pay for them — a supplier who will not charge you for a sample is not treating you as a serious buyer.
Evaluate against your specification sheet, and record:
- Does it match the dimensions and materials you asked for?
- Is the finish consistent across the unit, not just on the visible face?
- Does the packaging survive shipping?
- Is the labeling correct and compliant?
- How long did the sample take to arrive, and did they communicate delays?
6. Approve a pre-production sample
For anything customized, the sample you approve and the bulk order that arrives are two different things unless you make it explicit. Ask for a pre-production sample, sign it off in writing, and require the bulk order to match it.
Keep photos and measurements from the approved sample. That becomes your inspection standard.
7. Order a small first batch
Do not open with your maximum order. A first production run reveals everything: communication, lead time adherence, packaging, consistency. Scale after it goes well.
8. Inspect before final payment
Never let the last payment clear until an inspection has confirmed quantity, quality and packaging. This single rule prevents more loss than any other.
Trust signals that matter
- Fast, specific answers to technical questions
- Willingness to arrange inspection, and cooperation when you hire an inspector
- Consistent named contact, not a rotating chat identity
- A license that matches the payment beneficiary
- Realistic lead times rather than optimistic ones
- Willingness to start small
- Clear explanation when something cannot be done, instead of yes to everything
Warning signs
- Price dramatically below every other quote
- Pressure to pay by personal account or untraceable channel
- Refusal to allow inspection
- “No need for samples, we guarantee quality”
- Photos that appear on other suppliers’ listings
- Sudden price increase after the sample
- Repeated delays with no explanation
- New account manager every week
The cheapest price is rarely the goal
A slightly higher unit price from a supplier who ships what you approved is almost always cheaper than a low price that produces returns, chargebacks and refunds.
The real comparison is landed cost per unit after defects, not the ex-works quote. Work out what a 5% defect rate costs you in refunds, reshipping and lost customers, then compare.
When to stop managing suppliers yourself
Vetting suppliers is a skill worth learning once. Repeating it across ten SKUs, three categories and constant restocking is a job.
A sourcing partner is worth it when the coordination — multiple suppliers, inspections, consolidation, shipping — starts taking more of your week than marketing does.
Send us the product you want to sell and we will handle supplier identification, verification, sampling and inspection. You can also read the full sourcing guide for the process end to end.
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