Trading companies are not the enemy — some of the most reliable suppliers our clients work with are large trading houses with strong factory networks. The problem is a trader selling itself as a factory: you pay two margins (typically 8–18% on top), warranty disputes bounce between two parties who can both walk away, and every spec change gets translated twice before it reaches the production line. Run these eight checks before any audit even makes sense.
1. Business license scope
Ask for a clear photo of their business license in the first three messages. A real manufacturer's registered scope (经营范围) leads with manufacturing (生产 / 制造); a trader's reads "wholesale, import and export, supply chain services." Real manufacturers in heavy industries show registered capital of 5M RMB or more and 10+ years since incorporation; traders often register under 1M RMB and are under 5 years old.
2. The address
Sixty seconds on satellite view: a factory address sits in an industrial park with loading docks; a trader's is a high-rise office. Ask for two addresses — registered office and production facility. A real factory gives both within hours; a trader refuses or calls the plant "confidential."
3. VAT invoice type
A real manufacturer is almost always a general taxpayer issuing 13% special VAT invoices — the export tax rebate system requires it. A "factory" that can only issue a 3% ordinary invoice is a small workshop or a trader. Ask directly: "Are you the export entity? Can you issue a 13% special VAT invoice?" Real manufacturers answer in one paragraph.
4. Export records
Customs aggregators (Panjiva, Import Genius, 52wmb.com) show export volumes and HS codes by company. A factory's exports cluster around 3–6 HS codes in its specialty; a trader's sprawl across categories. This kills the classic scam: the two-year-old "factory" claiming to ship to 40 countries whose customs records show 200 kg of total exports.
5. Factory photos
Reverse image search every "our factory" photo — traders recycle stock photos across a dozen marketplace listings. Ask for raw files with EXIF metadata intact, and a 30-second narrated walk from the office to a specific machine.
6. Live video walk-through
The highest-information 30 minutes you can spend: a WeChat video call from the entrance through the production line to the QC lab. One unbroken shot, workers in consistent uniforms, calibration stickers with recent dates, continuous production noise. Ask them to walk to a specific machine you discussed — a real rep walks over; a trader stalls.
7. Export tax rebate fluency
For machinery and industrial products the rebate runs 9–13% and is the exporter's cash flow. Ask: "On a $50,000 order, what rebate do you expect and how does it affect your quote?" Real exporters quote it precisely; traders go vague because they share it upstream or don't file it themselves.
8. Their customs broker
"Which broker do you use, at which port?" A real factory exporter answers in one sentence. A broker that has handled hundreds of similar exports at your port in the last two years is a confirming signal.
Two traps that defeat these signals
The borrowed showroom. Some traders rent a corner of a real factory — a showroom, a meeting room near the entrance — and conduct visits and video calls from there. Catch it by cross-checking the visit address against the license, asking to meet the production manager (not sales), asking to see the line that will make your order, and walking through at shift change. A buyer in Aktobe nearly placed a $180,000 transformer order with a "Zhejiang factory" that was a Shanghai trading company hosting visits in a partner's empty meeting room — the request to see the winding department mid-shift on a random Tuesday produced three rescheduling offers over two weeks, and the real factory upstream confirmed no relationship.
The shell "factory" registration. A trader registers a second entity with manufacturing in its scope, rents a small workshop or just an industrial address, and funnels orders through it on paper. Give-aways: incorporated within the last 2–3 years, registered capital far too small for the claimed volume, a 500-square-meter workshop claiming container-scale output, export records inconsistent with claimed capacity, and no general taxpayer status on the "factory" entity. Both traps share one defeat: an unannounced visit during normal production hours with a specific list of things to see. Real manufacturers welcome it.
When a trading company is the right choice
A transparent trading company beats a hidden one, and sometimes beats going direct: when you need five product categories consolidated into one container with one invoice; when your order is too small for the factory's minimum to take seriously; when you lack local language and regulatory capacity (EAC documentation, Central Asian customs); when you need credit terms a factory won't extend; or when you want one accountable party for warranty. The bad case was never trading companies — it is suppliers lying about which role they play.
The eight signals take about two hours and catch most disguised traders. When the order is large enough to matter — over $30,000 — a one-day on-site audit verifies what no video call can: real capacity, real quality systems, and your warranty rights in writing. Our audits are billed at the $60/day rate in the table above — no markup, no commission.
