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The Suining cluster, measured

Twelve plants on one industrial estate in western China, one of them a ¥1.36 billion exporter. Five have a working website. Three publish English pages — and the largest of the three says it makes fingerprint locks.

What this is. A measurement of one manufacturing cluster rather than a list of factories. Suining is a prefecture-level city in Sichuan, roughly 150 km east of Chengdu. Its electronics base — the PCB park on Jichang South Road, the plants along Mingxing Avenue, plus one harness plant out in Pengxi county — holds the factories profiled in this directory: nine PCB fabricators and three wire-harness and cable plants, employing 5,800 people on 2025 annual filings.

What it can do. The range runs from single-sided aluminium boards to 48-layer multi-layer and IC substrate, from 3/3 mil line/space to automotive high-voltage harness. The largest plant turned over ¥1.359 billion in 2025, filed 277 granted patents, and runs a separate substrate factory; the second-largest holds US$55.3 million of paid-in capital and makes fine-line HDI for TFT-LCD.

What it cannot do. Tell a foreign buyer any of this. Of the nine PCB factories, five have a website at all, three serve HTTPS, three publish English content — and not one publishes an IATF 16949 certificate number or a MOQ. The gap is not manufacturing capability. It is publication.

The twelve entities

Every row below links to a fifteen-field profile. Headcount is the 2025 annual filing, not a brochure figure; where the company advertises a different number, the profile records both.

FactoryFoundedInsured 2025What it actually makesDigital presence
Yingchuangli (IQE)20111,7062–48 layers, IC substrate, PCBA; ¥1.359bn revenue 2025Site, HTTPS, 146 English URLs — homepage meta names a fingerprint-lock company
Zhichao (TWT)20121,267Fine-line HDI for TFT-LCD and LED; US$55.3M paid inNo site. Registered domain has mail records, no web host
Luxshare Precision20131,224Phone and notebook cables, connectors, automotive harness, system assembly; ¥1.15bn output 2024No plant-level site. Group site has no Suining page; its contact-page address is out of date
Haiying2006293Double-sided, multi-layer, HDI, metal-core, rigid-flexSite, HTTPS, full English subdomain, own sitemap
Puruisen2010250HDI blind/buried via, high-frequency; GJB 9001C claimedSite, HTTPS, English page; robots.txt missing
Shengda Xinxing201288Single-sided aluminium substrate as the core productNo site. Domain field in its own filings is blank
Hongan Xingsheng201686Double-sided, multi-layer, aluminium; 3/3 mil claimedDomain resolves, serves nothing over HTTPS
Kaishengshi201774Car-lamp boards, FPC, ceramic, 3 oz copper, 10 layersHTTP only; CMS placeholders never filled; frozen at 2021
Wanyexing202053Ceramic substrate, copper-core, RF/microwave, rigid-flexHTTP only; robots.txt points at another company’s sitemap
Jingming202402–24 layers; AI server, UAV, optical modulesNo site, no English page, free-mailbox contact
Lear (Suining)2023683Automotive and high-voltage harness for Ford, Geely, GWM, VolvoNothing of its own; the park’s tenant page is its only English text
Ruithai201476Automotive, motorcycle and EV harness; CCC and ULDomain keeps mail, lost its website; published email domain does not resolve

Two zeros worth reading carefully. Jingming’s headcount is zero because its first filing predates production — the city government cites 300+ jobs at full ramp, and the plant had been running two months when this was compiled. Shengda Xinxing’s digital row is empty because no company-controlled domain exists anywhere: its own annual filing leaves the website field blank.

What the cluster can actually do

Capability counts below are capability claimed in a registry, a certificate or the company’s own published page — not capability inferred from a sales claim. Where a process appears only in a registered business scope and no product has been shown, the row says so.

CapabilityFactoriesWho
Double-sided and multi-layer FR-49 of 9Whole cluster
20 layers or more2 of 9Yingchuangli (48), Jingming (24)
HDI, blind and buried via5 of 9Yingchuangli, Zhichao, Haiying, Puruisen, Wanyexing
Aluminium / metal-core6 of 9Haiying, Hongan, Puruisen, Shengda, Wanyexing, Kaishengshi
Rigid-flex / FPC4 of 9Haiying, Wanyexing, Kaishengshi; Hongan in scope only
High-frequency / RF laminates3 of 9Puruisen, Wanyexing, Kaishengshi
Ceramic substrate2 of 9Wanyexing (low-CTE), Kaishengshi (6-layer, 3 oz)
Heavy copper, 3 oz and above1 of 9Kaishengshi states 3 oz; Wanyexing’s copper-core line states no weight
IC substrate (载板)1 of 9Yingchuangli — a separate plant, not a product line bolted onto a PCB shop
PCBA / turnkey assembly1 of 9Yingchuangli, including BOM kitting
Automotive harness3 of 3Lear Suining (HV, tier-one programmes), Ruithai (auto, moto, EV), Luxshare (auto connectors and harness inside licensed scope; automotive park under construction)

Read the IC-substrate row as the cluster’s real dividing line. Everywhere else, the capability ladder is a matter of layer count and copper weight — commodity dimensions that a buyer can shop on price. Substrate work is a different business: it needs a class-1000 environment, its own yield curve and a customer willing to qualify a second source for two years. One factory in eleven has it, and that factory is also the only one with revenue above a billion yuan.

What no factory in the cluster publishes

This section is the reason the directory exists. These are the fields a buyer asks for in the first email, and the fields the cluster does not answer.

0 / 12publish an ISO 9001 or IATF 16949 certificate number
0 / 12publish a minimum order quantity
1 / 12publishes a lead time (Wanyexing, 5–15 days)
2 / 9publish any line/space figure

Beyond those four: impedance-control tolerance, stack-up library, AOI / X-ray / flying-probe coverage, IPC class, and panel-versus-finished dimensions are published by none of the nine PCB factories. Not one of them tells a buyer what a “square metre” means in its own numbers.

Capacity is the clearest example. Four different answers are in circulation and they are not comparable: two factories publish a monthly figure (Puruisen 60,000 m², Jingming 50,000 m²), five publish an annual one, and two publish nothing at all. Hongan Xingsheng publishes 1,000,000 m²/year on one page and 380,000 m²/year on an older one. Puruisen’s homepage states 60,000 m²/month and, in the next paragraph, 280,000 m²/year — which arithmetically cannot both be true.

Certificates are the second example. Every profile in this directory carries a certificate number where one exists in public records — High-Tech Enterprise numbers, Specialised & Sophisticated SME registrations, UL files. The quality-management certificates are the exception: not one PCB factory publishes an ISO 9001 or IATF 16949 number, in any document we could reach. Three factories instead cite standard names that no longer exist: ISO/TS 16949, withdrawn in 2016, appears on Kaishengshi’s site and in Jingming’s recruitment advertising; ISO 9001:2008, withdrawn in 2015, appears on Ruithai’s.

The digital presence audit

Checked directly over HTTP and DNS on 2026-10-30 to 2026-11-01, with a browser user-agent, because several hosts in this cluster filter bot agents.

5 / 12have a website that serves a page
3 / 12serve it over HTTPS
3 / 12have any English content
2 / 12declare their own sitemap

The two figures that matter sit next to each other. The two largest employers — 1,706 and 1,267 people — hold 78% of the cluster’s insured workforce. The 1,267-person plant has no website at all; its registered domain keeps a mail exchanger and nothing else. The 1,706-person plant does have an English site — 146 URLs, lang="en", its own sitemap — and its homepage title reads “Inno Circuits Limited-Fingerprint lock,Indoor unit”. The one English site in the cluster that describes PCB fabrication correctly on every page belongs to Haiying, the 293-person plant — 7.7% of the cluster’s headcount.

Digital presence here does not track revenue, headcount or capability. The ¥1.36 billion exporter runs an English site that opens by describing a building-intercom company; the 1,267-person plant has no site at all; the 1,706-person plant’s Chinese pages all carry the same <h1>, “Chengdu branch”. The 74-person car-lamp shop has a site whose meta description literally reads “website description”. The 53-person ceramic specialist runs plain HTTP, and its robots.txt advertises a sitemap on a domain it does not own.

The one number a buyer should take away. Three of twelve factories publish anything in English, and the largest of the three opens by describing a fingerprint-lock company. A shortlist built from an English web search is a shortlist of the cluster’s smaller factories — or one that misreads its largest.

Six questions the cluster’s websites cannot answer

1. Which legal entity is quoting you?

Lear (Suining) has three separate registrations at one address — a 2018 branch, a 2020 branch and a 2023 wholly foreign-owned company — so the entity that quotes, the entity that invoices and the entity that owns the plant can be three different companies. Kaishengshi operates inside a building whose registered address still names another company, the suspended Weihai Electronics. Ask for the USCC on the quotation, not on the brochure.

2. Is the square-metre figure annual or monthly, panel or finished?

Nobody in the cluster states the basis. A 60,000 m²/month claim and a 1,000,000 m²/year claim differ by 28% depending on which convention is used, and one plant publishes both conventions for itself.

3. Can you send the certificate PDF, not the standard’s name?

Three plants name standards that were withdrawn in 2015 and 2016. A current IATF 16949 certificate carries an IATF number and a validity date that can be checked in the IATF database in about two minutes. Zero of twelve factories publish that number.

4. How much of the capital is actually paid in?

Registered capital is a promise. Four of the twelve entities have paid in less than 60% of it: Wanyexing 25%, Lear Suining 32%, Kaishengshi 36%, Jingming 57%. Two of those four are the plants a foreign buyer is most likely to be routed to.

5. Does the domain you are emailing actually exist?

Zhichao’s registered domain has mail records and no web host. Ruithai’s trade listings print an email address on a domain with no nameserver, no A record and no mail record — mail sent there bounces. Neither company has a website on which to correct the record.

6. Who wrote the English page you are reading?

For the largest automotive harness plant in the cluster, the answer is the industrial park. The only English description of Lear’s Suining factory sits on the park’s own website, in a tenant listing whose page title reads “Lear Corporation”. Lear’s global site mentions Suining zero times.

Records outside the shortlist

Two of the thirteen public records in this directory are not recommendations. Both are factories that a buyer searching this cluster will encounter, and both are recorded here so that the encounter happens with facts attached.

Guangtian Electronics (Wesky) — the park’s first tenant, 2010. 238 court cases, six dishonest-debtor listings, equipment in judicial auction from 2026-10-21, and a 2021 provincial finding of copper discharge at 347 times the standard. Its English export site is still live and still soliciting orders, and it names three different companies across its title, its description and its Chinese subdomain.
Shenbei Circuit — in bankruptcy proceedings. Recorded for the same reason: a buyer who finds the name in a trade listing needs to know before the samples ship, not after.

How this was compiled

Registry records from the national enterprise credit system, 2025 annual filings for headcount, court and enforcement records, ICP filings, certificate registries, DNS lookups against two public resolvers, and direct HTTP checks with a browser user-agent. Every row in every linked profile carries its own source line and a date. Where a company states a number that contradicts the registry, both are printed and neither is deleted.

The cluster count is twelve because that is how many entities have been profiled to the fifteen-field standard. It is not the number of factories in Suining — the city’s own development zone lists more PCB tenants than this, and they will be added as they are verified. A factory is not omitted because it is small, and not included because it advertises well.

Start with the capability tables: PCB fabrication  ·  wire harness. Or read how a field gets verified, and how to contest one, in About & Methodology.