How do I tell a factory from a trading company?

I do not think this is the question that should drive your decision. Factory or trading company, the two things that decide whether you are in business are price relative to your expectation, and whether quality is protected. A trading company without its own plant can still produce exactly to specification if the tier it works with is right, because B2B is about repeat business. A factory can still be unmanaged and produce inconsistent batches.

Why would a trading company quote lower than the factory?

Two reasons, and neither is a discount. First, established buyers usually have a legacy discount with the same factory that a first-time buyer does not get. Second, a small first-time buyer almost always buys less over a year than a working trading company buys over a year, and volume is what earns the price. So a trading company can legitimately quote lower than what the factory would quote you directly, without either of them doing anything unusual.

Is a price below the market a bargain or a warning?

A warning. Every product has a cost and a market. A price below the market means either someone is trying to lure you in, or the quality is not what it appears to be and the supplier is not going to tell you which. I once acted as purchasing agent on a meat product that came in under market price with documentation I could not find a fault in. It was the bank's information that showed the company was fake. If the price does not survive a backwards calculation from your own cost, stop there.

What should a supplier be able to explain clearly?

Delivery time. The control points in the production process. The QC plan. The packaging plan. How a quality claim would be handled. Which equipment is used, and the model. And the assurance plan behind all of it. A supplier who can walk you through those has nothing to hide. Whether they own the equipment or not is a much smaller question.

Why not just go straight to the factory?

You can, and for some products you should. But one-off dealings are where risk concentrates. A supplier who will never see you again has no reason to protect your repeat business, and the loss from one bad container is far smaller than the cost of developing a good supplier. That is why the long-term economics usually favour working with someone who has a stake in your next order.

Is Your Chinese Supplier a Factory or a Trading Company?

It matters much less than people think. Whether the company in front of you owns a factory or buys from one, two things decide whether you are in business: whether the price survives a backwards calculation from your own cost, and whether quality is protected in a way that survives a bad batch.

The reflex that costs people money

Almost everyone I meet as a first-time buyer arrives with the same assumption baked in: a factory is cheaper because there is no middleman, and safer because if something goes wrong the manufacturer stands behind it. Both halves of that are usually wrong, and the wrongness is expensive.

Cheaper, because the price a factory quotes you is a function of how much you buy and how long you have been buying. Safer, because ownership of equipment says nothing about whether anyone checks the work. A plant with no process control and no final inspection will disappoint you regardless of whose name is on the building.

Why a trading company is often not more expensive

SUNWARD is a trading company. People assume we quote above the factory. In practice that is often not true, and the reason is not generosity - it is volume.

Two things follow from it. First, an established buyer normally has a long-standing discount with the same factory that a first-time buyer does not get. Second, a small company buying for the first time will almost always buy less over a full year than a working trading company buys in one year. Volume is what earns the price. So the same factory can legitimately quote you less than it quotes us, and we can still be the cheaper way to buy - not because we cut corners, but because we already have the position.

Work backwards from your own cost

Before discussing any supplier, run the number backwards. Landed cost per kilogram or per drum, from your side, given what you know about the product. Then look at the quote against that floor. If the quote is comfortably above it, there is room to negotiate and you are dealing with a normal counterparty. If the quote is below it, stop reading the marketing and start asking why.

Every product has a cost and a market. A price below the market is not a bargain - it is information. Either someone is trying to lure you into the transaction, or the quality is not what appears on the page, and in neither case will the supplier volunteer which.

I acted once as purchasing agent on a meat product that came in under market price. The documentation was complete and I could not find a fault in any of it - the paperwork was not the weak point, the paper was convincing. What finally settled it was information from the bank. The company did not exist as the documents described. Everything the seller showed me was real, and none of it was about them.

Why a trading company is not a one-shot deal

The common assumption is that a company with no factory of its own will find the cheapest possible producer, take the money and disappear. In B2B that does not hold the way it does in one-off retail. The economics run the other way: developing a supplier you can work with repeatedly costs real money, and one bad container costs less than that.

So a trading company that has a reason to keep your business has no incentive to burn it on your first order. What matters is tier matching - whether they are working with producers whose capability suits what you actually need, not whether they own a reactor.

What a supplier should be able to explain

This is the test I actually use. Ask, and see whether the answers are specific:

Delivery time - and what it depends on
The control points in the production process - where each stage is verified
The QC plan - what is tested, by whom, against which method
The packaging plan - and why it suits this product
How a quality claim would be handled - the actual process, not the word "compensation"
Key equipment, and the model - not "advanced equipment", the model
The assurance plan behind all of it

A supplier who can walk through those, with specifics, is telling you something real about how the goods get made. Whether the equipment sits behind their name or someone else's is a much smaller question - and for most products it is not the question that decides whether you get what you paid for.