The short answer. Four of sixteen plants in this directory run a dedicated prototype line: Xunjiexing (Shenzhen Shajing, 24-hour option, plus a Zhuhai smart prototype plant at 60,000 m²/month and 120,000 part-numbers a month), Champion Asia (prototype plants in Zhuhai and Guangde), Yingchuangli (a separate prototype plant on its 212-mu Suining site) and Wanyexing (53 staff, 5–15 day quote, ceramic and copper-core).
The number nobody publishes. Minimum order quantity: zero of sixteen. A buyer can read a plant's lead time in two cases out of sixteen and its MOQ in none. For prototype work those are the two figures that decide whether a quote is a service or a favour.
| Plant | Prototype capability as published | Lead time stated | Where it sits |
|---|---|---|---|
| Xunjiexing 迅捷兴 · 688655 · ¥689m | Custom prototypes and small batch in Shajing; Zhuhai smart prototype plant at 60,000 m²/month and 120,000 part-numbers a month from H1 2025; 130,000+ prototype part-numbers a month across the group; 10,000+ customers served | 24 hours fastest delivery | Shenzhen + Zhuhai, feeding a volume plant in Jiangxi |
| Champion Asia 骏亚科技 · 603386 · ¥2.54bn | Prototype plants at Zhuhai and at Guangde in Anhui, separate from the Huizhou Sandong volume plant and the Xiaojinkou SMT and finished-product plant; 1–108 layers across the group | None | Eight factories, six bases, plus Vietnam |
| Yingchuangli 英创力 · IQE · ¥1.359bn | Separate prototype, volume, substrate, special-board and assembly plants on a 212-mu Suining site; a new Pingchang plant launched January 2026; quick-turn prototypes among its five product families | None | Suining HQ, Chengdu R&D, five regional service centres |
| Wanyexing 万业兴 · 53 insured staff | Ceramic substrate, high-thermal-conductivity copper-core, high-frequency microwave and rigid-flex, with blind and buried vias; in-house gold immersion; claimed 5 µm machining tolerance; base materials named (Wangling, Shengyi) | 5–15 days quoted | Suining, one plant, 53 people |
The other twelve are volume plants that will accept a small order if you ask. That is not the same thing: a prototype line is a separate drilling and plating regime, usually with panel sharing, laser direct imaging and a first-article process tuned for one-off work. Suntak, for example, publishes a double-sided plant at 50,000 m²/month and a 4–12 layer plant at 140,000 m²/month — both volume, neither a prototype service.
Xunjiexing and Wanyexing both quote prototypes and could not be more different. Xunjiexing is a STAR-listed company with 1,515 employees, ¥689m of 2025 revenue growing 45% — and a net loss of ¥22.4m at a 14.43% gross margin. Wanyexing is 53 people with ¥10m of paid-in capital and a ceramic and copper-core speciality. The listed plant is buying growth on thin spreads; the small plant is selling a capability nobody else in its cluster has.
Which one you want depends on what your prototype is for. If it is a five-board functional check of a digital design, the quick-turn house wins on turnaround and on the fact that the same engineering file can move to its own volume plant without re-qualification — the single most useful thing about Xunjiexing’s model. If your prototype is a ceramic carrier for an RF front end or a 3 oz copper heat-spreader, the quick-turn house will decline or outsource it, and the 53-person plant is the only realistic route.
The hand-off problem this solves. Most buyers use one factory for prototypes and another for production. The prototype house tunes its process to pass your functional test; the production house tunes to yield. Defects appear at the hand-over, and neither plant owns them. A plant that runs both bands from one engineering file removes that seam — and only one plant in this directory states that as its business model rather than as an option.
Prototype pricing is dominated by fixed cost per order, not by area: film, drill program, test fixture, set-up and first-article inspection. That is why a prototype quote has almost no relationship to a volume price per square metre, and why the MOQ — the smallest order a plant will accept before the fixed cost stops making sense — is the number that tells you whether you are a customer or a nuisance.
None of the sixteen publishes it. Three consequences follow for a buyer. First, a 5 m² order may be accepted at a price that quietly includes a set-up charge you were not shown; ask for the breakdown. Second, panel sharing is where the real saving is: ask whether your board can run on a shared panel with another customer’s part, and what that does to the lead time. Third, the “24-hour” claim is only meaningful with three qualifiers — working days, layer count, and whether it starts at data-in or at order confirmation. Ask all three.
A 24-hour claim is a marketing unit until it is qualified. Xunjiexing publishes “24-hour fastest delivery” without stating the layer count, the panel size, the working-day convention or whether the clock starts at data-in. A 2-layer 100×100 mm board in 24 hours is routine; a 12-layer HDI board in 24 hours is not.
Prototype quality is not production quality. A plant can pass your functional test on five boards and fail first-pass yield at 500 m². Ask for the same stack-up’s production yield, not the prototype result.
The small specialist has a single point of failure. Wanyexing is 53 insured staff in one plant. That is a strength for ceramic and copper-core work and a risk for delivery continuity; ask what happens to your order in a power restriction or a Chinese New Year shutdown.
High-layer-count PCB · HDI and any-layer · IC substrate and SLP · Metal-core, ceramic and heavy copper · FPC and rigid-flex · all six on capability by process. For the commercial side of a first order, see how a Chinese PCB quote is structured.