8 Documents You Should Always Request From a Chinese Manufacturer

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Most buyers know to "ask for documents" before paying a deposit. Few know which ones actually prove anything. Some of the 8 below any trading company can produce in five minutes. Others only mean something if someone is physically standing in the factory to confirm they're real — that split is marked next to each one, so you know exactly what you can check yourself and where you actually need boots on the ground.

1. Business License (营业执照)

Every legitimate Chinese manufacturer has one. The registered business scope should say "manufacturing" — not "trading" or "consulting" — for the category you're buying.

A buyer sourcing aftermarket wheel rims and hub caps for the BYD Seal and Han learned this the hard way. The Alibaba storefront showed a 40,000-square-meter production facility and video of a CNC forging line running. The business license, when he finally got a copy, registered the company's scope as "wholesale of auto parts and accessories" — no manufacturing designation anywhere on it. By then he'd already sent a 30% deposit on 800 wheel sets. What arrived eleven weeks later had come from a subcontractor two provinces away: several sets had bent spokes out of the box, and roughly one in six had a center bore that didn't match the hub it was sold for. The company he'd paid blamed "the factory" and stopped answering messages within a week.

2. Export License or Export Agent Agreement

Not every real factory holds its own export license — some route shipments through a licensed agent, which is normal. What matters is knowing which one you're paying.

3. Third-Party Factory Audit Report

A factory proud of its operation usually has a recent audit — SGS, Bureau Veritas, or independent — and will share the report number without hesitation.

Suspension parts expose this gap in a different way. A buyer ordering 1,500 sets of control arm bushings had sat through two video calls looking at what he was told was the factory floor — production lines visible in the background, workers at benches. What the calls didn't show was that the address on his shipping documents traced to a small logistics office, not a factory, and the "production line" footage had actually been recorded at a different company's plant. The bushings that arrived were molded from a harder durometer rubber than what was specified. They didn't fail immediately — they failed differently: transmitting more vibration into the cabin and cracking sooner under load than the compound he'd actually ordered.

4. Product Test Reports and Certifications

CE, RoHS, FCC, DOT — whatever your destination market requires — should exist for the exact product model, not a similar one from the same catalog.

This matters most on parts that carry a legal compliance requirement, and LED headlight assemblies are the clearest example. A buyer ordering 2,400 headlight assemblies for the US aftermarket received a certificate stamped DOT-compliant with a certification number printed right on the invoice. The number didn't correspond to anything when checked — because DOT certification for lighting isn't issued by a lab or agency at all, it's a manufacturer's self-declaration, which means the stamp by itself proves nothing about what's actually inside the housing. These units ran overclocked driver chips pushed past rated output to advertise higher lumens on the listing page. Within four months of installation, failure reports started coming back describing melted housings and burned-out resistors, heat the design was never built to dissipate. A separate importer was prosecuted federally for the same pattern: thousands of lamps carrying counterfeit safety certification labels, brought in through a nearly identical arrangement.

5. National Enterprise Credit System Record

China's public credit registry (gsxt.gov.cn) shows registered capital, business scope, and any flagged irregularities — for anyone who can read it.

6. Dated, Unedited Factory Photos

Stock catalog photos tell you nothing. A photo with today's date visible tells you the factory exists right now, as described.

7. Sealed Sample Confirmation Sheet

Without a written record of exactly what was approved, "the bulk order doesn't match the sample" becomes impossible to prove either way.

Brake components are where this gap costs the most. A buyer approved a sample set of brake pads built with a specific ECE R90-rated friction compound, the rating required for EU type approval, and signed off on it in writing. The bulk order of 6,000 sets that shipped six weeks later used a cheaper, unrated compound blended in-house to hit the target price — same dimensions, same box, same part number, different chemistry. Nothing in the paperwork caught it, because the certificate on file was still the one issued for the sample batch, not the batch that actually shipped. The swap wasn't discovered until a customer in Germany failed a roadworthiness inspection, and the buyer had to recall stock already sitting in three distributors' warehouses.

8. Formal Sales Contract or Proforma Invoice

Specifications, quantity, quality standard, packaging, and delivery date — in writing, before any payment leaves your account.

What This List Actually Protects You From

None of these 8 documents guarantee a perfect order. What they do is remove the excuses — "the factory says," "we'll check and get back to you," "that got lost in translation" — that show up after money has already moved. A supplier with nothing to hide produces all 8 without friction. One that stalls on two or more of them is telling you something, whether or not they say it out loud.