WUS Printed Circuit（002463） · PCBs & Substrates

Long-Term Value Research on WUS Printed Circuit

Jun 9, 2026·~23 min read

Quick ReadPlain-language overview · read this first

WUS Printed Circuit is a domestic leader in high-end circuit boards. The report's stance is "Watch," not "Buy": this is a strong company, but the current price is too expensive.

What does it mainly do? It makes printed circuit boards, the rigid boards packed with wiring inside electronic devices. WUS Printed Circuit focuses on the hardest tier of these boards, used in AI servers, data centers, high-speed switches, and smart vehicles. It does not make money from software or traffic; it makes money by consistently manufacturing difficult, high-yield boards that others cannot produce, then passing multiple layers of certification from major customers. In the most difficult boards with "more than 22 layers," it ranks first globally. This craft cannot be learned by competitors in a year or two, which makes it a capability others cannot easily take away.

Its profitability is genuinely impressive: in 2025, it generated about 18.9 billion in revenue and actually earned about 3.8 billion, with reported profit broadly matching cash actually collected. These are not paper earnings. But there is a hidden concern: most of the money it earns is reinvested into building new plants, leaving only several hundred million in real "surplus cash" for shareholders each year. The company is making money, but much of it has to keep being poured back in to maintain its lead.

Is it expensive now? Very expensive. The share price is about 133 yuan. Based on its current profit, buying the whole company would take 67 years to pay back, while the report's calculated fair price is only 40 to 50 yuan. In other words, the market has already priced in a future decade in which "everything goes right." The main things to watch are: major customers are becoming increasingly concentrated, with the largest already accounting for nearly 20%; more than 80% of revenue comes from overseas, so tariffs and exchange rates are variables; and if the huge plant expansion fails to deliver the expected returns, it will weigh on future cash generation.

The report's conclusion is: the company is excellent, but the current price leaves almost no room for bargain value. It is worth watching, but there is no need to rush in; patience for a better price is warranted.

The above is only a plain-language explanation of this report and is not investment advice. The stock market involves risk; invest with caution.

Lead
WUS Printed Circuit is China's largest high-end printed circuit board manufacturer, focused on data communications and data-center PCBs. In 2025 it held roughly 7% of the global data communications PCB market and 10.2% of the data-center PCB market, both ranking first globally, while revenue reached RMB 18.945 billion, net profit attributable to shareholders reached RMB 3.822 billion, and five-year profit CAGR was about 38%. Research rating Watch: a strong AI-infrastructure manufacturing leader, but the current price leaves little verifiable margin of safety.

Full report

Prices in the article are as of publication; see the valuation band above for the live price.

Conclusion First

Preliminary conclusion: For an investor with a horizon of more than 10 years and a "balanced but conservative" risk profile, my rating on WUS Printed Circuit at the current point is Watch, not Buy. My core judgment is this: this is a business I can understand, and one that is genuinely strong in its high-end niche. The company has already built a global leading position in high-layer-count, high-speed high-frequency, high-reliability PCBs, especially data communications and data-center PCBs. But this business is not naturally asset-light. It increasingly requires heavy capital expenditure to maintain and expand its lead. Current public-market pricing already implies a long period of high-quality and smooth growth delivery, so the margin of safety is not merely "unclear"; it is close to absent.

The valuation reference price I use in this report is RMB 133.22 per share, corresponding to the latest closing-price page I could verify. At the same time, some intraday quote pages on June 9, 2026 showed the price around RMB 137, which means different capture times can create a difference of several percentage points. To avoid treating intraday noise as a conclusion, all valuation work below uses RMB 133.22. Based on the total share capital of 1.92436 billion shares disclosed in the 2026 Q1 report, this corresponds to a market capitalization of about RMB 256.3 billion.

By investor type, WUS Printed Circuit is better suited to long-term growth investors, or to "growth plus cycle" investors who can tolerate industrial cycles and valuation volatility. It is not suitable for ordinary conservative investors who simply equate "value investing" with "undervalued, cheap, cash-generative". If what you want is "good company + low price + high margin of safety," the current WUS Printed Circuit does not meet the third condition.

The three most important uncertainties are as follows. First, whether the strong cycle in AI servers, high-speed switches, and cloud capital expenditure is a long-cycle platform upgrade or will see severe volatility over the next two to three years. Second, whether the multiple expansion projects announced from 2026 onward can land with sufficiently high returns on capital, rather than turning money earned at a cyclical peak into capacity with diminishing returns. Third, whether the current valuation has already priced in the "best possible future" in advance.

The table below gives my four core scores for this company. The scores are not the conclusion itself. They help locate the issue quickly: the business is a good business, but the price is highly unfriendly.

Dimension	Score	My judgment
Business understandability	4.5 / 5	The core model is clear: a supply-chain business driven by high-end PCB manufacturing and customer qualification
Industry attractiveness	3.5 / 5	Long-term demand is strong, but the industry is capital-intensive, competition is not light, and cyclicality remains
Moat strength	3.5 / 5	High-end products, customer qualification, process capability, and global delivery form a moderately strong moat
Management and capital allocation	3.0 / 5	Operations are steady and the balance sheet is not visibly aggressive, but expansion is very forceful, there is no buyback, and disclosure has flaws

Business Understanding and Industry Structure

WUS Printed Circuit is, in essence, a high-end printed circuit board manufacturer. In 2025, the company's revenue was RMB 18.945 billion, of which the core PCB business contributed RMB 18.143 billion, or 95.77% of total revenue. By PCB application, 2025 revenue was RMB 14.656 billion from data communications, RMB 3.045 billion from intelligent vehicles, and RMB 442 million from industrial control and others. According to the 2025 revenue structure disclosed in investor activity records, products related to high-speed network switches and AI servers accounted for about 59%, general servers about 13.4%, wireless communication networks about 5%, intelligent vehicles about 16.1%, and industrial control about 2.3%. This shows it is no longer a "general PCB company," but has clearly concentrated into a high-end data communications PCB platform.

How this business makes money is also not complicated. The company provides customers with high-layer-count, high-frequency high-speed, high-density interconnect, and high-reliability PCB products that are embedded in customers' data centers, servers, switches, routers, autonomous-driving domain controllers, ADAS, smart cockpits, and electric-drive systems. It charges based on laminate specifications, layer count, complexity, yield, and delivery capability. The essence is not software subscription or traffic monetization, but gross profit earned through technical complexity, mass-production yield, continuous qualification, and reliable delivery.

Who are the customers? According to the Hong Kong listing application materials, the company serves well-known customers in global data communications, intelligent vehicles, and industrial control. In 2023, 2024, 2025, and 2026 Q1, the top five customers together contributed 46.0%, 50.9%, 53.3%, and 58.4% of revenue, while the largest customer contributed 13.8%, 12.3%, 14.3%, and 19.5%, respectively. In other words, this business is not a typical defensive model with no customer concentration. It is a high-end supply-chain model with binding to leading customers and rising concentration. Once customers are stable, orders show strong repeatability. But if platforms switch, budgets contract, or share shifts, volatility can also be evident.

Revenue stability therefore needs to be separated into two parts. Orders on installed platforms are recurring, because once a supplier completes qualification, passes reliability validation, and enters a customer's BOM, replacement is not easy. But predictability of total demand is not high, because aggregate demand still depends on cloud capital expenditure, switch generation upgrades, the pace of AI infrastructure deployment, and automotive platform refresh cycles. It is better than consumer-electronics OEM, but it is certainly not a utility.

On cost structure, the PCB industry typically depends on key materials such as copper-clad laminate and prepreg, as well as heavy manufacturing expenses. The Hong Kong listing application materials show that in 2023, 2024, 2025, and 2026 Q1, purchases from the top five suppliers accounted for about 41.3%, 40.5%, 42.2%, and 41.6%, while the largest supplier accounted for about 21.4%, 21.1%, 22.3%, and 21.2%. Main suppliers are focused on key materials such as CCL and prepreg. Put differently, this is not an "asset-light channel" business. It is a manufacturing system sensitive to raw materials, equipment, process control, and yield.

Geographically, the company has a high export share. The Hong Kong listing application materials disclose that overseas revenue accounted for 82.1% in 2025, including 54.5% from other Asian regions, 17.0% from the Americas, and 7.3% from Europe. In 2026 Q1, the overseas share rose further to 84.3%. This explains why the company is accelerating construction of its Thailand base, and it also means exchange rates, tariffs, geopolitics, and cross-border compliance will affect operations over the long term.

If we translate "is this a business I can understand" into a Buffett-style question, my answer is: yes, but we must admit it is an "understandable complex manufacturing business," not a "simple cash machine". I understand how it makes money, and why it is stronger than peers in high-end niches. I also understand that it remains in an industry with meaningful competition, heavy capital expenditure, and cyclical demand. Therefore, if the stock market closed for 5 years, I would be willing to own this business at a reasonable price. At the current price, I would not treat it as a typical value stock that can be comfortably held as a heavy locked position.

At the industry level, WUS Printed Circuit is not in traditional low-end PCBs, but in areas leaning toward high-layer-count MLPCB, data communications PCB, data-center PCB, and high-end automotive PCB. The Hong Kong listing application materials show that in 2025 the global data communications PCB market reached USD 31.8 billion, accounting for 37.3% of the overall PCB market. The company ranked first globally with USD 2.150 billion of data communications PCB revenue and a market share of about 7.0%. The same materials also show that in 2025 data-center PCBs accounted for about 62.3% of the data communications PCB market. The company's data-center PCB revenue was USD 2.012 billion, with a global market share of about 10.2%, also ranking first.

In the more granular high-layer-count segment, industry concentration is clearly higher. The Hong Kong listing application materials disclose that in 2025 the global market for 22-layer-and-above MLPCBs had only about 50 to 70 core participants. WUS Printed Circuit's 2025 revenue from this product category was USD 724.8 million, with a market share of about 14.9%, ranking first globally. This number is important because it shows the company is not merely a concept stock labeled as a "general industry leader." It has truly obtained a global top-tier position in a high-barrier sub-segment.

But industry attractiveness must be viewed from both sides. In its April 2026 investor activity record, the company itself clearly warned that in recent years many peers have redirected resources into data communications. As new capacity comes online in the future, entry barriers for mature technology platforms may be diluted, competition may become more homogeneous, and profit room may face structural pressure. In other words, this is not an industry where one can permanently "win lying down." It is an industry where the faster technology upgrades, the faster capital chases returns, and the faster competition intensifies. In one sentence, I think WUS Printed Circuit is closer to an "excellent company in a fiercely competitive industry" than an "easy good company in a naturally good industry."

Moat and Management

If we break down the moat, WUS Printed Circuit's moat does not come from network effects or regulatory licenses. It mainly comes from high-end product capability, long-term customer qualification, mass-production yield, global delivery, and operating systems. The strongest evidence is the company's global No. 1 position in high-layer-count and data-center PCB segments, as well as the continued upgrade of its product mix toward higher layer counts. The Hong Kong listing application materials show that in 2023, 2024, 2025, and 2026 Q1, revenue from 22-layer-and-above PCBs accounted for 38.4%, 53.3%, 54.9%, and 59.4%; revenue from 32-layer-and-above PCBs accounted for 8.5%, 13.3%, 22.4%, and 32.1%. When a manufacturing company's revenue keeps migrating toward more complex products, it usually means its moat is at least widening, not narrowing.

From the perspective of brand and customer relationships, WUS Printed Circuit is not a consumer brand, but its "brand" in the minds of B2B customers is reflected in qualified-supplier status and delivery reputation. In 2024, the company received awards from multiple strategic customers such as "Excellent Supply Chain Award," "Outstanding Supplier," "Best Delivery Award," and "Best Quality Award." This indicates strong reputation and execution credibility in high-end customer systems. For PCBs, which are deeply embedded in customer systems, this kind of "brand" matters more than consumer advertising.

On cost advantage, WUS Printed Circuit is not a company that wins through extremely low labor cost. Its cost advantage is closer to scaled manufacturing + high yield + process maturity + capacity coordination. The Thailand base generated about RMB 289 million of revenue in 2025 and had already reached RMB 295 million in 2026 Q1. Within that, the data communications business unit's capacity utilization exceeded 90% in 2026 Q1, and qualification by most overseas customers had been completed. The combination of mainland China and Thailand bases can create a more flexible balance among geopolitical risk, delivery cycle, and overseas customer demand. This is an increasingly valuable "supply-chain moat."

On switching cost, WUS Printed Circuit has moderately high switching cost, not extremely high. The reason is that once a high-end PCB enters AI servers, switches, routers, and automotive-grade systems, it needs to pass material validation, reliability testing, process ramp-up, yield validation, and long-term delivery assessment. Replacement is not easy. But it is still not enterprise software or a payment network, and it is not irreplaceable. Therefore, my assessment of its switching cost is: stronger than ordinary manufacturing, weaker than platform software.

Pricing power is uneven across product lines. By PCB application in 2025, data communications gross margin was 39.68%, intelligent vehicles gross margin was 22.84%, and industrial control and others gross margin was 42.10%. Overall PCB gross margin was 36.91%, continuing to improve from 2024. This mix tells me that WUS Printed Circuit has a certain degree of bargaining power, or at least bargaining defense, in high-end data communications boards. But it does not have the same pricing power in automotive boards, where it instead faces industry competition and cost pressure. In other words, its moat is locally deep but not evenly deep across the whole company.

On difficulty of replication, competitors need more than money to copy WUS Printed Circuit's high-end data communications capability. They need high-end material adaptation, process capability, high-layer-count multiple-lamination experience, yield ramp-up, overseas customer qualification, scaled delivery, cross-regional operations, and organizational stability. These are not things that can be completed in one year. The company also disclosed in 2026 that as high-end PCBs evolve toward ultra-low-loss resins, HVLP copper foil, and special high-performance glass fiber cloth, it will participate in new-material validation early in customer product development, establish safety inventory for critical materials, and push diversified qualification. In effect, it is turning supply-chain capability itself into a moat.

On management, there are both strengths and reservations. The strengths are these: in the past three years, the company's directors and senior executives have not been penalized by securities regulators. Director attendance at board meetings and shareholder meetings has been good, and during the reporting period directors did not raise objections to company matters. At least from a formal governance perspective, operations are standardized. The family of actual controller Wu Ligan controlled about 391.6 million shares at the end of 2025, or about 20.4% of total share capital, so interest alignment does exist.

But the reservations must also be stated clearly. First, management's capital-allocation style is clearly tilted toward expanding capacity, expanding technology, and expanding global capability, rather than buybacks. The company had no share buyback in 2025. At the same time, the 2020 incentive plan and 2024 option incentive plan continued to execute. Total share capital increased from 1.89728 billion shares in 2022 to 1.92436 billion shares in 2025, an increase of about 1.4%. This is not severe dilution, but it shows management does not treat "maximizing per-share value" as the sole objective, or at least has not used buybacks to offset incentive dilution.

Second, disclosure quality is not flawless. In November 2025, the company corrected information such as the "purchase share of the top five suppliers" in its 2022, 2023, and 2024 annual reports. Although the audit committee clearly stated that this did not affect the financial position, operating results, or cash flows for the relevant periods, and did not involve financial-statement adjustments, it is still a small governance flaw that should be scored. It does not constitute evidence of financial fraud, but it indicates that the disclosure review process is not impeccable.

Third, capital allocation is entering a heavy-investment phase. In 2026 Q1 alone, the company announced: one high-density optoelectronic integrated circuit board project with total investment of USD 300 million, one high-end printed circuit board project with total investment of RMB 3.3 billion, one high-layer-count/high-frequency high-speed/high-density interconnect printed circuit board project with total investment of RMB 5.5 billion, and one printed circuit board production project with total investment of RMB 6.8 billion. This means management is not defending the business in a "harvest period," but pushing the company into the next expansion cycle with heavier capital intensity. For operators, this may be correct. For public-market investors, it reduces the certainty of free cash flow.

Overall, my assessment of management and capital allocation is: operating capability is credible, strategic vision is not poor, and the long-term orientation is relatively strong; but capital allocation is becoming more aggressive, and shareholder returns are reflected more through dividends and a growth narrative than through countercyclical buybacks and a clear "per-share" mindset. Therefore, I can only give this item 3.0/5, short of "excellent."

Financial Quality and Owner Earnings

Start with the financial main line that best explains the issue. Based on company materials I have verified, revenue from 2021 to 2025 was approximately RMB 7.419 billion, RMB 8.336 billion, RMB 8.938 billion, RMB 13.342 billion, and RMB 18.945 billion. Net profit attributable to shareholders was approximately RMB 1.064 billion, RMB 1.362 billion, RMB 1.513 billion, RMB 2.587 billion, and RMB 3.822 billion. From 2021 to 2025, revenue CAGR was about 26%, and net profit attributable to shareholders CAGR was about 38%. This is not the financial trajectory of a mediocre manufacturer. It is a typical upward curve driven jointly by "cycle + product upgrade + share gain." In 2026 Q1, the company's revenue was RMB 6.214 billion and net profit attributable to shareholders was RMB 1.242 billion, still up 53.91% and 62.90% year over year, respectively.

The table below lists only the core indicators that I could directly verify or clearly derive from annual reports, quarterly reports, and the Hong Kong listing application materials in this review. One point needs special clarification: 2023 net profit attributable to shareholders is back-calculated from the year-over-year growth rate disclosed in the 2024 annual-report summary; some 2023 cash-flow and capital-expenditure details were not fully retrieved from original source documents in this review, so they are marked as requiring supplemental materials.

Year	Revenue	Net profit attributable to shareholders	Net margin	Net operating cash flow	Cash capital expenditure	Free cash flow
2021	RMB 7.419 billion	RMB 1.064 billion	14.3%	RMB 1.410 billion	Requires supplemental materials	Requires supplemental materials
2022	RMB 8.336 billion	RMB 1.362 billion	16.3%	RMB 1.566 billion	Requires supplemental materials	Requires supplemental materials
2023	RMB 8.938 billion	About RMB 1.513 billion	About 16.9%	Requires supplemental materials	Requires supplemental materials	Requires supplemental materials
2024	RMB 13.342 billion	RMB 2.587 billion	19.4%	RMB 2.325 billion	RMB 2.147 billion	RMB 177 million
2025	RMB 18.945 billion	RMB 3.822 billion	20.2%	RMB 3.872 billion	RMB 3.198 billion	RMB 673 million
2026Q1	RMB 6.214 billion	RMB 1.242 billion	20.0%	RMB 511 million	Requires supplemental materials	Requires supplemental materials

The improvement in margins is not merely a "financial technique"; it has fairly solid business support. In 2025, consolidated operating cost was RMB 12.224 billion, corresponding to an overall gross margin of about 35.5%. The corresponding 2024 figure was about 34.5%. Looking by PCB segment, 2025 overall PCB gross margin was 36.91%, data communications gross margin was 39.68%, and intelligent vehicles gross margin was 22.84%. This indicates that the past two years' profit improvement came more from product mix shifting toward high-end data communications than from low-quality volume growth.

Equally important, accounting profit and operating cash flow broadly match. Operating cash flow/net profit was about 1.33 times in 2021, about 1.15 times in 2022, and about 1.01 times in 2025. This suggests the company has not shown the typical danger signal of "strong paper profit but weak cash flow" in recent years. In 2024, operating cash flow/net profit fell to about 0.90 times, a level worth monitoring but not yet an alarm. The real issue is not that "profit is unreal," but that growth increasingly consumes capital expenditure.

Once capital expenditure is deducted, free cash flow is not attractive. According to the cash-flow statement, 2025 operating cash flow was RMB 3.872 billion, cash paid for the purchase and construction of fixed assets, intangible assets, and other long-term assets was RMB 3.198 billion, and free cash flow was only about RMB 673 million. The corresponding 2024 free cash flow was only about RMB 177 million. In other words, the company can generate cash, but most of the cash it earns is reinvested in expansion and upgrading. This determines that from the perspective of "cash distributable to shareholders," it is not as easy a story as the net-profit growth rate suggests.

The short-term balance sheet remains healthy. The 2026 Q1 report shows cash and cash equivalents of RMB 4.392 billion, short-term borrowings of RMB 3.072 billion, non-current liabilities due within one year of RMB 646 million, and long-term borrowings of RMB 2.626 billion. Roughly calculated, interest-bearing debt totaled about RMB 6.344 billion, and net debt was about RMB 1.952 billion. If we estimate EBITDA using 2025 total profit of RMB 4.398 billion, interest expense of RMB 124 million, and depreciation and amortization of about RMB 603 million, EBITDA is about RMB 5.1 billion. Net debt/EBITDA is about 0.4 times, and interest coverage is above 35 times. This means short-term leverage is not a problem. But if the RMB 15.6 billion expansion projects and the USD 300 million project continue to advance, financing needs will clearly keep rising.

On working capital, accounts receivable rose from RMB 5.507 billion at the beginning of 2026 Q1 to RMB 6.476 billion, while inventory rose from RMB 4.246 billion to RMB 4.913 billion. During the same period, net operating cash flow fell 64.04% year over year. The company explained this as higher cash outflow for raw-material procurement of about RMB 1.521 billion year over year due to business-scale expansion. This change looks more like inventory preparation and capacity support during an upcycle. It should not immediately be read as a bad-debt issue, but it reminds us that this is not a business model that requires no continued working-capital investment.

As for signs of financial fraud, aggressive accounting, or profit manipulation, I did not see hard evidence in this review. The 2025 annual report received a standard unqualified audit opinion. Profit and operating cash flow broadly reconcile, and the company has remained profitable over the long term. But there was a correction to the disclosed purchase share of the top five suppliers, so I would treat it as a "governance flaw in non-financial metrics," rather than "evidence that falsifies financial authenticity".

Under the "owner earnings" framework, I would be more cautious than free cash flow and more conservative than net profit. 2025 net profit attributable to shareholders was about RMB 3.822 billion. Adding back depreciation, right-of-use asset depreciation, amortization of intangible assets, and amortization of long-term deferred expenses of about RMB 603 million gives after-tax pre-depreciation earnings of about RMB 4.425 billion. But the RMB 3.198 billion of 2025 capital expenditure was clearly mostly growth investment and cannot all be treated as maintenance capex. At the same time, PCB process upgrades are rapid, so maintenance capex cannot be merely symbolic. I use a conservative assumption: estimate maintenance capex at RMB 1.0 billion, slightly higher than depreciation and amortization, to reflect the real need for continuous process upgrades. Based on this assumption, 2025 conservative Owner Earnings were about RMB 2.87 billion. If depreciation and amortization are used as the upper bound for maintenance capex, the upper bound is about RMB 3.27 billion. Against the current reference market capitalization of about RMB 256.3 billion, the market valuation is about 78 times to 89 times owner earnings. This is not "cheap," and not even "reasonably expensive." It is a typical valuation that pulls forward many years of high growth.

Valuation, Margin of Safety, and Opportunity Cost

Here is my valuation conclusion first, followed by the method. At the current reference price of about RMB 133.22, WUS Printed Circuit does not have a sufficient margin of safety. I divide intrinsic value into three tiers: conservative intrinsic value of about RMB 25 to 30 per share, reasonable intrinsic value of about RMB 40 to 50 per share, and optimistic intrinsic value of about RMB 95 to 110 per share. In other words, even under fairly optimistic long-term growth assumptions, the current price still falls into what I define as the "clearly overvalued range". This conclusion does not mean the company is poor. It means the market is giving it not a "normal leader premium," but an "almost perfect execution premium."

Method one: owner earnings discounting. I start with 2025 conservative Owner Earnings of RMB 2.87 billion, and use RMB 3.27 billion for the upper bound. In the conservative scenario, I assume Owner Earnings grow 8% annually for the next 5 years, then 4% for the following 5 years, with an 11% discount rate and 2.5% perpetual growth. In the base scenario, I assume 14% for the next 5 years, then 7% for the following 5 years, with a 10% discount rate and 3% perpetual growth. In the optimistic scenario, I assume 24% for the next 5 years, then 12% for the following 5 years, with a 9% discount rate and 4% perpetual growth. Based on this, the conservative scenario corresponds to about RMB 23.6 to 26.9 per share, the base scenario to about RMB 39.4 to 44.9 per share, and the optimistic scenario to about RMB 94.3 to 107.4 per share. I round these into the three valuation ranges above. This model already gives the company a fairly high tolerance for long-term growth, yet the result remains clearly below the current price.

Method two: relative valuation. Based on RMB 133.22, 2025 net profit, and 2025 year-end net assets, WUS Printed Circuit's current trailing PE is about 67 times, and PB is about 17 times. Using 2025 free cash flow, P/FCF is about 381 times. If 2026 Q1 net debt is included in enterprise value and compared with rough 2025 EBITDA, EV/EBITDA is about 50 times. Horizontally, Shennan Circuits' PE on public quote pages is about 69 to 77 times, and PB about 15.3 to 15.5 times. Kinwong Electronic's PE is about 60 to 62 times, and PB about 5.3 to 5.5 times. This shows two things. First, leading PCB names as a group are not cheap. Second, "peers are expensive" does not automatically mean "WUS Printed Circuit is cheap". On the contrary, WUS Printed Circuit is merely expensive together with the most expensive group.

Method three: asset or liquidation value. This company does not have an asset safety cushion of "large net cash, land, and financial assets sitting on the balance sheet." At the end of 2026 Q1, cash and cash equivalents were RMB 4.392 billion, while interest-bearing debt totaled about RMB 6.344 billion, leaving net debt of about RMB 1.952 billion. Although the company also had RMB 2.191 billion of non-current assets due within one year, RMB 1.038 billion of other equity instrument investments, and RMB 85 million of other non-current financial assets, it looks more like an actively expanding operating company than a "net-cash stock" whose high valuation can be supported by asset value. If the market later becomes unwilling to pay a high growth premium, the downside protection provided by asset value will be weak.

From a margin-of-safety perspective, the current price is most vulnerable on three assumptions. First, demand for AI servers and high-speed switches must keep growing strongly, and the company must keep winning high-value share. Second, the huge capital expenditure after 2026 must translate into high incremental profit, not merely scale. Third, the market must remain willing to assign a high valuation multiple to a manufacturing company for a long time. If any one of these assumptions loosens, returns will deteriorate significantly.

This is the core reason I believe the current price has no margin of safety. Even if we simply annualize 2026 Q1 profit, the current forward PE is still around 50 times. Using 2025 trailing earnings, the earnings yield is only about 1.5%. By comparison, on June 8, 2026, China's 10-year government bond yield was about 1.73%, while the CSI 300 Index rolling PE was about 14.53 times, corresponding to an earnings yield of about 6.9%. In other words, buying WUS Printed Circuit today means exchanging a trailing earnings yield below the risk-free rate for a strong belief in distant future high growth. That does not fit the value-investing discipline of a "balanced but conservative" profile.

Viewed against other opportunities, my conclusion is also direct. Compared with the CSI 300, WUS Printed Circuit certainly has stronger "single-name growth," but its valuation tolerance is far lower than the index's. Compared with the 10-year government bond, its static return compensation is not superior. Compared with its strongest peer Shennan Circuits, it is not significantly cheaper. Compared with substitutable investments such as Kinwong Electronic, it enjoys a higher AI-narrative premium but requires higher certainty of execution. At the current price, I do not think it is clearly superior to buying the index, and I certainly do not think it qualifies for a demanding portfolio that allows only 5 assets.

Therefore, my price discipline is very clear: ideal buy range RMB 25 to 35 per share; acceptable long-term holding range RMB 35 to 55 per share; above RMB 90 per share, I would define it as clearly overvalued. This is not a prediction of whether the stock price will return to these levels. It is the price one should pay today, reverse-engineered from long-term return requirements. You can fully acknowledge that WUS Printed Circuit is an excellent company and still patiently wait for a better offer.

Risks, Checklist, and Final Judgment

The most important risk is not "how large short-term volatility is," but how permanent capital loss can occur. In my view, the strongest opposing case is this: WUS Printed Circuit is indeed a high-end PCB leader, but the current stock price has already bundled in AI infrastructure strength, switch upgrades, customer share gains, Thailand ramp-up, optoelectronic integration layout, and Hong Kong financing capability. If any link falls short of market expectations over the next three to five years, the stock price may not "slowly return to reasonable," but instead suffer rapid valuation damage. Investors could buy the right company and still earn poor returns for a long time.

By category, the first risk is competition and capacity risk. The company itself has warned that more peers are allocating resources to data communications, and mature platforms may face homogeneous competition and profit pressure in the future. If new industry capacity is released intensively in 2026 to 2028 while demand growth for AI servers and switches slows, the supply-demand balance for high-end PCBs may deteriorate. The second risk is customer concentration. The top five customers' share has risen from 46.0% in 2023 to 58.4% in 2026 Q1, and the largest customer's share has risen to 19.5%. If a major customer cuts budgets, transfers orders, changes platforms, or sees an upstream technology-path shift, profit volatility will be amplified. The third risk is capital allocation and execution. The 2026 projects already announced by the company are very large. If returns fall short, they will directly erode free cash flow for the next several years.

The fourth risk is overseas and geopolitical risk. Overseas revenue accounted for 82.1% in 2025 and 84.3% in 2026 Q1. Overseas expansion, tariffs, export controls, and exchange-rate fluctuations will all affect results. In the Hong Kong listing application materials, the company stated that as of the latest practicable date, US tariffs and export controls had not caused a material adverse effect on the business under compliance conditions. But this is more a compliance conclusion at the current point than a guarantee about future risk. In 2026 Q1, the company already recorded about RMB 148 million of foreign-exchange loss, which shows currency disturbance is not a paper risk.

The fifth risk is earnings quality in automotive boards. The automotive business does have long-term room, but its 2025 gross margin was only 22.84%, down 1.61 percentage points from the previous year. If the market overinterprets the company as a "pure AI data-center concept stock" and ignores the drag or uncertainty from the automotive-board business within the overall mix, its judgment on earnings quality will be too optimistic. The sixth risk is governance and disclosure risk. The correction to top-five-supplier data did not affect the financial statements, but it is enough to remind investors to keep watching disclosure details.

What facts would make me admit my judgment is wrong? I would reassess if the following occurred. First, revenue share from 22-layer-and-above and 32-layer-and-above products stops rising or keeps falling, indicating the high-end moat is no longer deepening. Second, the top five customers' share continues to surge, while gross margin and ROE decline, indicating bargaining power is falling instead of rising. Third, after the huge expansion comes onstream, free cash flow does not improve and is instead swallowed by capital expenditure for a long period. Fourth, the company frequently raises equity capital for expansion, clearly diluting per-share value. Fifth, the data communications board business sees a clear step-down in gross margin. Conversely, if after capacity ramp-up the company can still maintain high ROE, strong cash conversion, and solid dividend capacity, that would also trigger me to admit I was "too conservative."

The checklist below uses "Pass / Fail / Uncertain" to give my final screening result. It is a compressed version of the whole report.

Check item	Conclusion	Note
Can I understand this business?	Pass	But it is an "understandable complex manufacturing business"
Does it have long-term stable demand?	Pass	Data centers and automotive electronics are structurally upward, but cyclical volatility exists
Does it have a durable moat?	Pass	Mainly in high-end data communications PCBs, and not equally deep across all product lines
Does it have pricing power?	Uncertain	Data communications boards have some capability; automotive boards are weaker
Can it generate stable free cash flow?	Fail	Operating cash flow is acceptable, but true free cash flow is constrained by heavy capital expenditure
Are returns on capital excellent?	Pass	Very strong in the past two years, but future new capacity must still be tested
Is management trustworthy?	Pass	But discounts are needed for disclosure corrections and aggressive expansion
Is capital allocation rational?	Uncertain	Expansion follows business logic, but the amounts are already quite aggressive
Is the balance sheet solid?	Pass	Current leverage is not high, but future funding needs are large
Is valuation below intrinsic value?	Fail	I judge it to be clearly above intrinsic value
Is the margin of safety sufficient?	Fail	Almost none
Would long-term holding make me comfortable?	Uncertain	Business quality is strong; the purchase price is not comfortable
What facts would make me sell?	Pass	Deterioration in high-end product mix, gross margin, FCF, and customer concentration would all trigger action
Am I tempted to buy only because of stock-price gains or sentiment?	High risk	Current market sentiment and the AI narrative account for a large share

The final comparative conclusion can be put even more plainly: if today you must choose among "buy WUS Printed Circuit, buy the CSI 300, or buy China's 10-year government bond," I believe that at the current price, WUS Printed Circuit is not the best choice for long-term capital allocation. It deserves to enter the watchlist only when "you believe your understanding of the company's long-term growth is far stronger than the market average." It does not deserve to enter the buy list.

【Final Rating】 Watch

【One-Sentence Investment Thesis】 WUS Printed Circuit is one of the few true leaders in high-end PCBs, but the current stock price buys more of the next decade's perfect execution expectations than a margin of safety that can be verified today.

【Core Bull Case】

The company has a global leading position in high-end segments such as data communications PCBs, data-center PCBs, and 22-layer-and-above MLPCBs.
From 2023 to 2025, the product mix continued to upgrade, with the share of 22+ layer and 32+ layer products rising rapidly, showing that the moat is not stagnant.
Revenue and net profit grew strongly in 2024 and 2025, and operating cash flow broadly matched profit, so earnings quality is not poor.
The dual base in mainland China and Thailand gives the company greater resilience in global delivery and geopolitical disturbance.

【Core Bear Case】

Current trailing PE is about 67 times, P/FCF about 381 times, and P/OE about 78 to 89 times, leaving almost no margin of safety.
The expansion projects announced from 2026 onward are huge, making future free cash flow and returns on capital uncertain.
Customer concentration is rising. In 2026 Q1, the top five customers already accounted for 58.4% of revenue, and the largest customer accounted for 19.5%.
Overseas revenue accounts for more than 80%, so exchange-rate, tariff, compliance, and geopolitical risks will persist over the long term.

【Key Assumptions】

High demand for AI servers, high-speed switches, and data-center PCBs can persist for a long period.
Massive expansion can maintain high yield and high utilization after production starts, rather than becoming low-return capacity.
The company's share and gross margin in high-layer-count, high-speed high-frequency products are not materially eroded by peers.
Hong Kong financing and global expansion do not materially damage per-share value.

【Fair Buy Price】 RMB 25 to 35 per share. The basis is a reverse calculation from conservative to base Owner Earnings discounting, while requiring a margin of safety of about 30%. If only asking for a holding price that is "not unreasonable," my upper limit is about RMB 55 per share. Above RMB 90 per share, I would define it as clearly overvalued.

【Target Holding Period】 If bought at a reasonable price, this type of company can be held for 5 to 10 years or more. At the current price, I do not recommend using "long-term holding" as a reason to ignore valuation.

【Expected Annualized Return】 Using the current price of about RMB 133.22 as the purchase price and a 10-year holding period: conservative scenario about -10% to -8% per year, base scenario about -5% to -3% per year, optimistic scenario about +4% to +6% per year. This return structure itself shows that the current price is not friendly to long-term investors.

【Maximum Loss Risk】 If AI infrastructure strength fades, expansion returns fall short, and valuation returns closer to an excellent manufacturer rather than a "perfect growth stock," a long-term drawdown of 50% to 75% would not be hard to imagine. The worst case is not that the company fails, but that you bought at an extremely high valuation, and then the company keeps growing for several years while the stock still loses a lot of money.

【Tracking Indicators】

Revenue share of 22-layer-and-above and 32-layer-and-above products.
Gross margin of data communications boards and automotive boards.
Operating cash flow/net profit and free cash flow/net profit.
Thailand base revenue, utilization, and profitability.
Top five customer share and largest customer share.
Overseas revenue share and foreign-exchange gains or losses.
Production schedule of new expansion projects, capital expenditure delivery, and ROE changes.
Share capital changes, equity-incentive exercise, and whether financing dilution appears.

【Signals That Would Trigger Reassessment】

The share of high-layer-count products stops rising or clearly declines.
Data communications board gross margin declines significantly for two consecutive years.
After large capital expenditure lands, free cash flow remains weak for a long time.
Top five customer concentration keeps rising, but margins do not improve at the same time.
New major disclosure corrections, abnormal accounting practices, or aggressive financing appear.
The Hong Kong listing plan is clearly unfavorable to per-share value.

【Final Recommendation】 Calmly stated, I am willing to keep tracking WUS Printed Circuit, but I am not willing to treat it as a typical value-investing opportunity at the current price. It is more like an excellent growth manufacturing leader that has already been highly priced by market enthusiasm. For long-term business owners, the real question is not "is this company good," but "at this price, can ownership of this company still deliver satisfactory returns over the next 10 years." Based on the data I can verify today, the answer is not optimistic. The most restrained, long-term-oriented approach is to acknowledge its excellence, then patiently wait for the price.

This report is based on public information and does not constitute investment advice. Markets carry risk; invest with caution.

Mentioned Tickers

002916 002436

Baillie Framework · Ten Questions for Growth Investing

Hunting ten-year five-baggers among great growth stocks — pressing the upside question: "Can it get much bigger?"

How high is its market ceiling? Is it expanding an existing pie, or creating an entirely new market?6/10

Conclusion first: WUS Printed Circuit's market ceiling is high, but it is not creating a brand-new end market from scratch. It is enlarging the hardest, most expensive, and highest-value layer of the existing PCB pie through upgrades in AI data centers, HPC, high-speed switches, and intelligent vehicles. Put differently, this is a high-end re-rating of an old track, not a software-platform-style new continent.

The hard data behind that ceiling is not small. The HKEX application proof discloses that the global data communications PCB market was about US$31.8 billion in 2025, accounting for 37.3% of the overall PCB market; data center PCB is the core segment, where WUS Printed Circuit ranked first globally in 2025 with US$2.012 billion in revenue and a 10.2% market share. For the more advanced multilayer PCB of 22 layers and above, mainly used in AI servers, HPC, and 400G-and-above switches, the application proof expects its share of global multilayer PCB revenue to rise from 14.8% in 2025 to 26.8% in 2030. This shows that WUS Printed Circuit is facing a market where product complexity, per-machine value, and customer qualification thresholds are all moving upward at the same time, rather than a static market.

The boundary also needs to be stated clearly. The company recorded RMB 6.214 billion in revenue in 2026Q1, up 53.91% year on year, indeed benefiting from structural demand such as high-speed computing servers and AI; the company's IR record also states clearly that deployment of AI servers and high-speed network switches brings structural growth momentum to the PCB industry. Yet the same IR record also warns that many peers are shifting resources toward data communications PCB, and once new capacity comes online, mature platforms may become homogenized and profit space may be squeezed. Therefore, WUS Printed Circuit's upper bound is not an "infinite TAM". It depends on whether the company can remain in the leading tier for high-layer-count, high-frequency and high-speed, high-yield products, and migrate share from ordinary PCB into the high-end profit pool of AI/data center.

So the answer to Q1 is: the market ceiling is sufficient to support long-term growth, but its nature is closer to "expanding and upgrading an existing pie." It has created a new high-value niche profit pool within the PCB industry, but it has not escaped manufacturing constraints such as capital expenditure, equipment and material bottlenecks, customer capex cycles, and peer capacity expansion. This is also why it can be a growth leader in high-end PCB, but cannot simply be valued as an "entirely new market creator" with unlimited valuation room.

Jun 9, 2026
Can its revenue at least double over the next five years? Will growth be driven mainly by volume, price, or new businesses?6/10

Conclusion first: WUS Printed Circuit has a chance to double revenue over the next five years, but I would not treat that as a high-certainty commitment. Starting from 2025 revenue of RMB 18.945 billion, doubling to about RMB 37.9 billion mathematically requires a CAGR of about 14.9%; the company recorded overall revenue of RMB 18.945 billion in 2025, up about 42.00% year on year, and achieved operating revenue of RMB 6.214 billion in 2026Q1, up 53.91% year on year. The current slope is clearly above the threshold for doubling in five years. The issue is that PCB is a capital-intensive manufacturing business; whether this slope can be sustained depends on continuous delivery of AI server and high-speed switch demand, as well as the ramp-up of the company's new capacity.

I would rank the growth drivers as volume > product mix/per-board value > new businesses. The source of volume is clearest: in 2025, the company's PCB revenue from data communications applications was about RMB 14.656 billion, up about 45.21% year on year, including about RMB 8.169 billion from high-speed network switches and supporting routers, and about RMB 3.006 billion from AI servers and HPC; the April investor record also disclosed that, based on 2025 revenue, products related to high-speed network switches, AI servers, and similar applications accounted for about 59%. So this is not volume from ordinary PCB, but demand growth for high-end boards brought by AI/data center platform upgrades.

The "price" part is more accurately described as product mix upgrade, rather than simple price increases. The HKEX application proof shows that the company's share of high-end multilayer PCB of 22 layers and above and 32 layers and above has continued to rise, and its 2025 data center PCB revenue was US$2.012 billion, with a 10.2% global market share. If the share of 32-layer-and-above products, ultra-low-loss materials, and high-speed high-frequency boards continues to increase, per-board value and gross margin may still rise. This is the important second driver for revenue doubling.

New businesses add upside, but for now they are not the main engine. Intelligent vehicle PCB and P2Pack, as well as high-end HDI, the Thailand base, and CoWoP/mSAP optoelectronic integration, can all expand the boundary; for example, the Thailand base recorded about RMB 295 million in revenue in 2026Q1, more than 70% of overseas customers in the data communications business unit had completed qualification, and capacity utilization had exceeded 90%. But these are more like adjacent expansions around the PCB platform, rather than the explosion of a fully independent new business.

So my judgment is: doubling revenue over five years is "imaginable and has real handles," but it requires three conditions to hold at the same time: the AI server and high-speed switch cycle continues, domestic and overseas capacity expansion is released smoothly, and the share of high-end products keeps rising. If cloud capex cools, peers' new capacity lands in concentration, or mature-platform competition turns into a price war, WUS Printed Circuit may still grow, but the certainty of a five-year revenue doubling would fall sharply.

Jun 9, 2026
Five years from now, what will take over as the next growth engine? Does this "second curve" exist today?4/10

Conclusion first: Five years from now, the most likely successor is not a new track completely detached from the PCB main business, but a combination of "next-generation data center interconnect PCB + overseas delivery capability." The second curve already has an outline today, but it is not yet a validated independent growth engine; it is more like an adjacent extension of the first curve toward higher layer counts, higher frequency and speed, more complex package interconnects, and a globalized supply chain.

Start with the current picture: WUS Printed Circuit's growth core remains AI servers, high-speed network switches, and data centers. The company disclosed that products related to high-speed network switches and AI servers accounted for about 59% of revenue in 2025, general-purpose servers about 13.4%, and intelligent vehicles about 16.1%; meanwhile, the company ranked first globally in data communications PCB, data center PCB, and multilayer PCB of 22 layers and above in 2025. This shows that the "first curve" remains strong, and the company does not need automotive boards or new businesses to take over immediately in the short term.

The three embryonic curves are what really merit attention. The first is continued upgrading of high-end data center interconnects: the HKEX application proof shows that the company's revenue share from PCB of 32 layers and above rose from 8.5% in 2023 to 32.1% in 2026Q1, while 10-stage HDI technology had passed validation and the company had mastered PCB technology above 100 layers. The second is optical-copper convergence/optoelectronic integration: the company's April 2026 investor relations record mentioned that the Changzhou Jintan subsidiary is building an incubation platform for CoWoP, mSAP, optical-copper convergence, and high-density optoelectronic integrated circuit boards. The third is the Thailand base: the same record disclosed that more than 70% of overseas customers in the Thailand data communications business unit had completed qualification, and capacity utilization exceeded 90% in 2026Q1. This looks more like a supply-chain second curve, helping the company serve overseas customers and diversify geopolitical risk.

But to be honest, these have not fully "taken over." Optoelectronic integration is still in the loop from R&D, pilot testing, and validation to application; the Thailand base is an advantage in delivery and regional capacity, not a new product category; intelligent vehicle PCB has long-term room, but the company also acknowledges that automotive PCB faces mid-to-low-end oversupply, raw-material price increases, and pass-through from vehicle price competition. My judgment is: the second curve exists, but for now it is only an "option portfolio." Whether it can truly take over five years from now depends on whether optoelectronic integration/high-end HDI can contribute revenue and profit at scale, whether the Thailand base can remain profitable, and whether these capacity additions generate free cash flow rather than only higher capital expenditure.

Jun 9, 2026
What is its core competitive advantage? Will this moat widen or narrow over the next three to five years?6/10

Conclusion first: WUS Printed Circuit's core competitive advantage is real, but its moat is "high-end manufacturing + customer qualification + reliable delivery," not a platform-type network effect. Over the next three to five years, the high-end AI/data center board segment will probably continue to widen, while excess profit on mature platforms will be diluted by peer capacity expansion and customers' multi-supplier strategies. Overall, it is "widening in the high-end segment, narrowing in mature segments, moderately strong overall but not worth overstating."

The first layer of advantage is process complexity. The company has clearly migrated from ordinary PCB to high-layer-count, high-speed high-frequency, high-reliability boards. The HKEX application proof discloses that its 2025 data communications PCB, data center PCB, and 22-layer-and-above MLPCB all ranked first globally, while the revenue share of 22-layer-and-above PCB rose from 38.4% in 2023 to 59.4% in 2026Q1. These boards are hard because of material adaptation, repeated lamination, signal integrity, yield ramp-up, and stable mass production; this is not something that can be filled in by spending money for one year.

The second layer of advantage is customer embedding and delivery credibility. Once high-end PCB enters AI servers, switches, routers, or automotive-grade systems, it usually goes through validation, reliability testing, process ramp-up, and long-term delivery assessment. Customers do not replace suppliers lightly. But this is also a double-edged sword: the HKEX application proof also discloses that the revenue share of the top five customers rose from 46.0% in 2023 to 58.4% in 2026Q1, while the largest customer's share rose to 19.5%. This proves WUS Printed Circuit is embedded with top customers, and also shows the company does not fully control pricing power.

The key over the next three to five years is whether the pace of technology upgrade can stay ahead of industry capacity expansion. In its April 2026 investor relations record, the company acknowledges that after peers pour resources into data communications PCB, mature technology platforms may become homogenized and profit space may be squeezed, while emphasizing technology priority, domestic and Thailand capacity coordination, and layouts such as CoWoP/mSAP and optical-copper convergence. If 32-layer-and-above products, high-speed switches, AI servers, and optoelectronic integration products continue to grow in volume, the moat will widen in the high-end segment; if new capacity comes online in concentration while demand slows, mature platforms will narrow. Therefore, WUS Printed Circuit's moat deserves recognition, but it should not be priced like a software platform or monopoly asset.

Jun 9, 2026
If its core business is disrupted, does it have the DNA for self-reinvention? How does it handle mistakes and bad news?5/10

Conclusion first: WUS Printed Circuit has early DNA for self-reinvention, but it is more a capability for "continuous migration within the high-end PCB platform," not ironclad proof of cross-business-model reinvention after a fundamental disruption of the core business. Its attitude toward mistakes and bad news is also neutral: it can disclose, correct, and explain, but the process is not flawless.

On the positive side, the company has not stayed with traditional communications boards or automotive boards. It has continued to push its capabilities toward the high-layer-count, high-speed high-frequency PCB required by AI data centers as customer platforms upgrade. The HKEX application proof shows that the revenue share of 32-layer-and-above PCB rose from 8.5% in 2023 to 32.1% in 2026Q1, while 22- to 30-layer products also maintained a high share. This shows its organizational capability is not only about defending old products, but about migrating upward with thresholds in materials, layer count, speed, and yield.

More importantly, the company has realized that "expanding capacity without upgrading" would be dangerous. In the June 2026 research record, the company acknowledged that peer capacity expansion would dilute mature technology platform barriers, competition could become homogenized, and profits could be squeezed, while emphasizing early involvement in electrical performance validation and reliability testing for next-generation high-end materials, and building an incubation platform for frontier technologies such as CoWoP, mSAP, and optical-copper convergence. These actions support the judgment that it has reinvention DNA.

But the boundary must also be clear: this is still adjacent reinvention, not a complete rebirth in a new shell. WUS Printed Circuit's core capabilities remain PCB manufacturing, customer qualification, yield, delivery, and capital expenditure. If future value shifts further from high-end PCB toward packaging, optical interconnect modules, system-level integration, or customer in-house substitution, it still needs to prove it can capture the core profit in the new value chain, instead of merely following the upgrade of next-generation board-level specifications.

On handling bad news, I would rate it "passing but not excellent." In November 2025, the company corrected disclosures related to the top five suppliers in its 2022-2024 annual reports and stated that the correction did not involve adjustments to the financial statements, and that it would strengthen the preparation and review of disclosure documents going forward; when operating cash flow declined 64.04% year on year in 2026Q1, it also explained that this was due to business scale expansion and an increase of about RMB 1.521 billion in cash outflows for raw-material purchases. This shows the company is willing to put unfavorable information on the table, but the supplier-data correction itself also reminds investors that this is not a company whose disclosure quality has been proven over the long term to be "almost error-free." Investors should keep watching disclosure accuracy, returns on capacity expansion, and free-cash-flow delivery.

Jun 9, 2026
Does management, especially the founder, have a long-term perspective and deeply aligned interests with the company? Is it willing to sacrifice current profits for five to ten years out?6/10

Conclusion first: WUS Printed Circuit's management has a fairly strong long-term perspective, and the interest alignment is real, but it is not the typical owner-operator model of a founder with high personal ownership, personally serving as CEO, and continuously repurchasing shares to raise per-share value. A more accurate judgment is: long-term control and board participation by the Wu Ligan family give the company the long-term discipline of family capital; the operating team is willing to put current profits and cash flow into technology, capacity, and global delivery capability for five to ten years out, but this long-termism has the color of manufacturing expansion and may not be the most minority-shareholder-friendly capital allocation in terms of per-share value.

The evidence on alignment is fairly hard. The company's 2025 annual report discloses that the Wu Ligan family controlled 391,611,200 shares as of the end of 2025 and was the actual controller; the HKEX application proof also discloses that the Wu Ligan family held about 20.35% of A-share interests through controlled corporations. This means family wealth is deeply tied to the company's long-term market value, unlike a model where purely professional managers chase short-term performance and then leave.

On long-term investment, management is indeed willing to sacrifice part of current profits and free cash flow. The annual report shows about RMB 1.14 billion in R&D investment in 2025, with R&D expenses up 44.50% year on year, and directs the use of H-share issuance proceeds toward capacity expansion, R&D investment, industrial-chain investment, and working-capital replenishment; the 2026 first-quarter report further discloses a US$300 million high-density optoelectronic integrated circuit board project, a RMB 3.3 billion high-end PCB project, a RMB 5.5 billion high-layer-count/high-frequency high-speed/high-density interconnect PCB project, and a RMB 6.8 billion PCB project. These actions show management is not simply harvesting profits at a cyclical peak, but positioning early for AI servers, next-generation switches, dual bases in Thailand and China, and frontier processes.

The reservation also needs to be clear: this kind of sacrifice is more like "reinvesting cash into heavy-asset capacity expansion," rather than software-company-style long-termism with low capital expenditure. The company's 2025 annual report discloses that there were no share repurchases during the reporting period, while equity-incentive exercises would dilute total share capital. So the answer to Q6 is positive but not full marks: management is long-term oriented and deeply aligned with the company; but investors still need to test whether these large investments ultimately translate into high ROIC, free cash flow, and per-share value, rather than only a larger revenue scale.

Jun 9, 2026
If it disappeared tomorrow, how much would customers miss it? Is its growth model sustainable, without relying on harm to society or regulatory arbitrage?6/10

Conclusion first: Customers would miss WUS Printed Circuit, especially customers for high-end AI server and data center boards; but this is "painful to replace in the short term," not "permanently irreplaceable." The HKEX application proof discloses that in 2025 the company's 22-layer-and-above MLPCB revenue was US$724.8 million, ranking first globally with a 14.9% market share. Once products of this kind enter customer platforms, materials, reliability, yield, and delivery must be validated again for replacement suppliers, so customers do not switch easily.

Stickiness comes from qualification and delivery, not monopoly. The annual report summary says that 2025 data communications PCB revenue was RMB 14.656 billion, up 45.21% year on year, and the company received "Best Technology Innovation Award," "Excellent Supplier Award," "Best Delivery Supplier Award," and other honors from strategic customers; the HKEX application proof further discloses that the top five customers accounted for 58.4% of revenue in 2026Q1, the largest customer 19.5%, and major customer relationships could be traced back to 2002-2013. This shows WUS Printed Circuit is embedded in top customers' supply chains, but it also shows large customers have the ability to press prices, shift orders, and maintain multi-supplier backups.

The growth model generally relies on technology upgrades, qualification, yield, and global delivery, rather than social harm or regulatory arbitrage. The problem is that sustainability still needs a discount: the company's April 2026 investor activity record says that CSP capital expenditure is driving deployment of AI servers and high-speed network switches, but peers are also entering data communications PCB with aggressive capital expenditure, and mature platforms may become homogenized in the future, with profit space squeezed. In other words, demand is real, but it is not cycle-free or competition-free.

On regulatory and social externalities, PCB remains a manufacturing industry heavy in water, electricity, chemicals, wastewater, and waste gas. The company's board report discloses that since 2024, compliance rates for waste gas, wastewater, and waste disposal have remained at 100%, and it plans to reduce water-withdrawal intensity by 5% by 2030, raise renewable-energy usage to 70%, and has obtained ISO14001 certification for major production bases; the annual report summary also discloses that it received an EcoVadis Silver Medal, CDP Climate Change A-, CDP Water Security A rating, and national-level green factory recognition. These are necessary conditions for compliance and customer access; they do not mean environmental constraints disappear. The conclusion is: customers would miss it, and the growth path is relatively healthy, but it is not irreplaceable; the larger WUS Printed Circuit becomes, the more it must prove sustainability through yield, green manufacturing, overseas compliance, and cash returns.

Jun 9, 2026
How are the unit economics of this business, including gross margin and incremental returns? Does scale make them better or worse? Where does the money it earns go?5/10

Conclusion first: WUS Printed Circuit's unit economics are excellent within PCB manufacturing, but this is not an asset-light business where things get easier as it gets larger. High-end data communications boards give it gross margins above ordinary PCB and a net margin of about 20%. As scale expands, product-mix upgrade, yield ramp-up, and operating leverage can improve results in stages; but equipment, materials, working capital, and new capacity will keep consuming cash, so free cash flow available to shareholders may not improve in sync.

On the gross-margin side, the research report's core judgment is that "high-end data communications boards are better than ordinary PCB." External disclosures can verify this too: the company recorded 2025 revenue of RMB 18.945 billion and net profit attributable to the parent of RMB 3.822 billion, PCB business revenue of RMB 18.143 billion, and PCB business gross margin rose to 36.91%, while revenue from data communications applications was RMB 14.656 billion and continued to grow rapidly. The overall ratios disclosed in the H-share application proof also support this: gross margin rose from 28.4% in 2023 to 33.8% in 2025, net margin from 16.9% to 20.2%, and ROE from 16.8% to 28.4%. This shows that over the past two years, "larger scale" has indeed brought improvements in product mix and operating leverage.

But good incremental returns do not mean light free cash flow. In 2025, the company had operating cash flow of RMB 3.872 billion, but the H-share application proof discloses payments of RMB 3.198 billion for purchase and construction of property, plant and equipment, intangible assets, and other non-current assets, leaving only about RMB 670 million in rough free cash flow; the 2026 first-quarter report also shows that operating cash flow fell 64.04% year on year, mainly because business scale expanded and cash outflows for raw-material purchases increased by about RMB 1.521 billion. In other words, the money it earns mainly goes into materials, inventory, receivables, equipment, and new capacity.

So WUS Printed Circuit's unit economics are "better than the industry average, but constrained by capital expenditure." If new capacity continues to go into AI servers, switches, and 32-layer-and-above high-end boards, larger scale will make the economics better; if peers expand capacity and mature platforms become homogenized, gross margin will be diluted. The US$300 million optoelectronic integrated circuit board project, RMB 3.3 billion high-end PCB project, and RMB 5.5 billion and RMB 6.8 billion PCB expansion projects listed in the company's 2026 first-quarter report are essentially current profits being bet back into future capacity and process upgrades. This choice may be correct, but future new capacity must maintain high utilization and high gross margins; otherwise, "profit growth" will be offset by "growth in capital employed."

Jun 9, 2026
What conditions must hold at the same time for it to rise fivefold over ten years? Are those conditions realistic? What expectations are embedded in today's share price?3/10

Conclusion first: Using the unified price anchor of RMB 141.09 and 2026Q1 share capital of 1.92436 billion shares, WUS Printed Circuit's current market value is about RMB 271.5 billion; a fivefold rise over ten years would require about RMB 1.36 trillion. This is not completely impossible, but industry demand, company share, margins, capital returns, and valuation multiples would all need tailwinds at the same time; its realism is closer to a difficult blue-sky case than a base case. Today's share price already implies that the market believes it can turn the AI/data center PCB boom into a decade-level profit compounder, rather than merely benefiting from one cycle.

For it to happen, at least four conditions must be delivered simultaneously. First, the data communications PCB pie must keep expanding, and WUS Printed Circuit must maintain its high-end share: the HKEX application proof discloses the company's 2025 data communications PCB revenue of US$2.1498 billion with a 7.0% share, and data center PCB revenue of US$2.0118 billion with a 10.2% share and first-place ranking; it cannot lose this position. Second, after RMB 18.945 billion in revenue, RMB 3.822 billion in net profit attributable to the parent, and 36.91% PCB gross margin in 2025, the company still needs to turn the 53.91% revenue growth and 62.90% net-profit growth of 2026Q1 into sustainable profit, rather than a cyclical high. Third, capacity expansion and technology upgrades must continue to generate high ROIC and restore free cash flow; the US$300 million optoelectronic integration project, and RMB 3.3 billion, RMB 5.5 billion, and RMB 6.8 billion PCB projects disclosed in 2026Q1 cannot become low-return capacity. Fourth, competition cannot destroy excess profits; the company's investor communication materials also warn that industry resources are concentrating toward data communications, and after new capacity comes online, competition and homogenization pressure on mature platforms may rise.

The reverse valuation is more intuitive: if a RMB 1.36 trillion market value is valued at 25-30 times PE ten years from now, it requires about RMB 45-54 billion in net profit, roughly 12-14 times the 2025 level of about RMB 3.8 billion; even if the terminal valuation remains at 50 times PE, it still needs about RMB 27 billion in net profit, about 7 times growth. In other words, the current price is not buying "steady growth from a leader," but "many consecutive years of high growth for an AI PCB leader, high returns on capital expenditure, and no significant long-term valuation derating." Each condition has a path on its own, but the margin for error when all must hold together is very low; so the answer to Q9 is: a fivefold rise over ten years has theoretical upside, but today's share price has already pulled forward many blue-sky assumptions, and expectations are not cheap.

Jun 9, 2026
Why has the market not recognized all this yet? Is it because the market does not understand it, looks down on it, or cannot look far enough? What will become the "narrative inflection point"?3/10

Conclusion first: The market has not failed to recognize WUS Printed Circuit's AI PCB story; on the contrary, using the unified price anchor of RMB 141.09 and a market value of about RMB 271.5 billion, the narrative has already been traded very fully. What has not yet been fully seen is not "whether it is a good company," but whether this round of data center PCB prosperity can pass through the capacity-expansion cycle, customer concentration, and capital-expenditure pressure. The answer is closer to "cannot look far enough," with a little "underestimates manufacturing cash-flow constraints": the market understands AI server demand, but it has not yet fully proven that this can turn into high ROIC and high free cash flow over a ten-year horizon.

The side that is easy to understand is obvious: the company recorded 2026Q1 revenue of RMB 6.214 billion and net profit attributable to the parent of RMB 1.242 billion, up 53.91% and 62.90% year on year, respectively, and explained that growth benefited from structural demand for PCB from emerging computing scenarios such as high-speed computing servers and artificial intelligence; the HKEX application proof also discloses that the company had 2025 data communications PCB revenue of US$2.150 billion, ranking first globally with a 7.0% share, and data center PCB revenue of US$2.012 billion, ranking first globally with a 10.2% share. These facts explain why the market is willing to give it an AI infrastructure leader premium.

But the market also has reasons to hesitate. In its investor activity record, the company warned that peers are entering data communications PCB with aggressive capital expenditure and capacity expansion, and mature technology platforms may become homogenized in the future, with profit space facing structural pressure; the 2026Q1 report also lists a US$300 million optoelectronic integration project, and multiple high-end PCB expansion projects of RMB 3.3 billion, RMB 5.5 billion, and RMB 6.8 billion. In other words, the narrative has moved from "orders are exploding" to "capacity expansion must be delivered."

The real narrative inflection point is not further proof that AI server demand is strong, but five consecutive verifiable signals: the share of 32-layer-and-above high-end boards continues to rise; after the Thailand base achieved overseas customer qualification and capacity utilization above 90%, it contributes stable profit; CoWoP/optoelectronic integration moves from incubation platform to commercial orders; operating cash flow and free cash flow improve with scale; new capacity does not turn the industry into a price war. If these are delivered, WUS Printed Circuit will upgrade from an "AI PCB cyclical beneficiary" to a "global high-end interconnect platform"; if only revenue is delivered but ROIC and cash flow are not, then the market has actually recognized too much, not too little.

Jun 9, 2026

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