Buyer questions, answered by plant

1 · Who is the legal entity behind this brand?

No plant in this directory publishes its USCC on its own website. Every profile reconstructs it from a registry extract, an annual report or a filing — which is fine for a buyer reading a directory and useless for a buyer reading the supplier's site. Three examples show how far apart brand and entity can sit:

For how to do this check yourself in three minutes, see the 20-minute verification guide, step 1.

2 · Which plants publish a layer count?

The full breakdown, plant by plant — including what the ranges are attached to — is on the high-layer-count page.

The other eleven say nothing. That includes Victory Giant, which builds AI accelerator boards at ¥10.7bn of revenue and does not state a maximum layer count anywhere. If your stack-up is 24 layers and you need to know whether a plant can quote it, the answer is not on the website.

3 · Which plants let me size my order against them?

Seven of sixteen publish a capacity number, and they use four different units — which is why capacity is the least comparable figure in the industry.

A monthly number multiplied by twelve is not a yearly number — design capacity, actual output and finished-panel area are three different things. The quote-structure guide explains why the unit matters as much as the figure.

4 · Is it certified?

Every plant here claims certification and none publishes a certificate number. The claims range from specific to vague:

This is what step 3 of the verification guide exists for: check the number in the issuing registry, not the logo on the site. A state designation such as 专精特新小巨人 is real and checkable, but it is awarded on innovation and scale criteria — it is not an IATF file.

5 · Can it ship from outside China?

Four plants already have, or are building, a non-China base — and the timing of each is the detail that decides a 2027 award.

None publishes a qualification date. Ask for one in writing — a groundbreaking is not a first article.

6 · Which plants already work with export customers?

Export share is the closest proxy this directory has to “can they handle my documentation”. Xunjiexing is the sharpest case: a fifth of its revenue leaves China and it publishes no English website at all.

7 · Which plant fits a prototype, and which fits volume?

Prototype capability, lead times and the missing MOQ are covered in full on the quick-turn page; process-level comparisons are on the capability index.

This is the question where the directory divides cleanly, because the two ends of the market are different businesses with different margins.

8 · Is this plant too big — or too small — for my order?

The number that answers this is not headcount, it is gross margin, because margin tells you which band the plant's pricing is built for.

The quote-structure guide explains why two unit prices from two of these plants cannot be compared before the nine line items are aligned.

9 · What does a machine see when it looks at them?

Measured directly on 1 November 2026 for the seven Pearl River Delta plants — the group where every site was fetched and parsed the same day. This is the layer that decides whether a plant appears in an assistant's answer at all.

The mechanics of why this matters are in why AI assistants recommend the factories they do. The short version: a plant with no structured data and no correct language declaration is invisible to the layer that answers “who makes PCBs in Huizhou” — regardless of how good its boards are.

10 · What can no profile here tell me?

Everything that requires seeing the plant. Yield, first-pass rate, AOI and X-ray coverage, impedance tolerance on your stack-up, how the line handles a change notice, whether the cleanroom is as clean as the photograph. A profile measures what is published and what a machine can fetch; it cannot measure manufacturing. Two things follow:

Where the sixteen are

Seven in the Pearl River Delta — Huizhou, Shenzhen and Dongguan — measured together on the delta cluster page. Nine in one industrial estate in Suining, Sichuan, on the Suining cluster page. Both pages use the same method and the same field set, which is what makes the comparison across them worth anything.

How this index was built

One rule: no claim without a profile behind it. Every cell above resolves to a measurement recorded in a factory profile, and every profile records its sources, its measurement date and what it did not check. Where the answer was “nobody publishes this”, the count is given rather than a guess. Compiled 2026-11-01 from the sixteen profiles on this site.