You found a supplier on Alibaba. The listing says "Gold Supplier — 8 years — Manufacturer." The price looks right. But here's the question that should keep you up at night: is the company behind that listing actually a factory, or a trading company pretending to be one?

I've audited over 120 factories across China in the last three years. Roughly 40% of "manufacturers" on Alibaba are trading companies — middlemen who add a markup and outsource to a workshop you'll never see. Here's how I tell the difference, and how you can too.

1. Check the Business License

Every registered company in China has a business license with a "business scope". If the scope says "production" (manufacturing), they're a factory. If it says "trading" or "sales", they're a middleman.

You can ask the supplier for a copy of their license. If they refuse, that's a red flag. If they send one, check the scope. You can also verify the license number on the National Enterprise Credit Information Publicity System.

2. Ask for a Live Video Walk-Through

A real factory has a production floor with machines, workers, and work-in-progress. A trading company has a nice showroom and a sales team.

When I audit a factory, I ask for a live video call and request to see three things:

  • The production line running — machines in operation, not staged
  • The warehouse with raw materials and finished goods
  • The QC station where they check output

If they can only show you a showroom, or if the "factory" is actually an office in a high-rise building, you're dealing with a trader.

3. Check the Address on Google Maps and Baidu Maps

Alibaba listings include a company address. Cross-reference it:

  • Google Maps / Baidu Maps: Does the address point to an industrial zone or a commercial office building?
  • Street View: Can you see loading docks, smokestacks, or factory signage?
  • Floor number: A real factory is usually on the ground floor or in an industrial park. A 14th-floor office in a trading building is not a factory.

4. Ask Technical Questions Only a Factory Boss Would Know

Trading company sales reps are good at quoting prices. They're bad at answering production questions. When I'm on a call, I ask:

  • What's your monthly capacity for this spec?
  • What machine model do you use for the specific process?
  • What's your scrap rate on this material?
  • How long does a mold change take on your line?

A factory owner answers immediately, in detail. A sales rep changes the subject or gives a vague answer.

5. Order a Small Test Batch and Visit

If the order is large enough to matter, visit the factory. If you can't visit, send a third-party inspector or a sourcing agent. A $300 inspection trip can save you a $30,000 mistake.

For first orders, start small — a test batch of 100-500 units. This lets you verify quality, communication, and lead time before committing to volume.

The Bottom Line

Alibaba is a starting point, not a verification system. The "Gold Supplier" badge means the company paid for a listing — it doesn't mean they manufacture anything. The five checks above take less than a day and can save you from the most common sourcing mistake: paying a middleman who pretends to be a factory.