Automotive PCB Stocks Hit Limit-Up as Investors Bet on Transformation, Not a Car-Market Rebound

Preface

On October 28, 2026, automotive printed circuit board (PCB) stocks in Taiwan rallied sharply. Automotive PCB manufacturers Chin-Poon Industrial (敬鵬, 2355-TW) and TPT (泰鼎-KY, 4927-TW) both reached their daily limit-up prices, with Chin-Poon closing at NT$54.5 and TPT at NT$56.3. The move was not primarily driven by expectations of a recovery in vehicle demand. Instead, investors were reassessing whether automotive PCB companies can improve profitability by shifting production and sales toward higher-value applications, including industrial control and AI-related products. A strong earnings report from China’s Kingboard PCB Group (景旺電子, 603228-CN), the world’s largest automotive PCB manufacturer, helped reinforce that thesis. This article examines the market catalyst, the structural pressures facing automotive PCB suppliers, and the different transformation paths being pursued by Chin-Poon and TPT. It also considers why AI’s competition for PCB capacity may have consequences beyond the AI sector itself.

Lazy bag

The rally in automotive PCB shares reflects confidence in business-model transformation rather than a broad recovery in car demand. Kingboard’s third-quarter results showed that higher revenue from AI and high-speed communications PCBs, together with the successful pass-through of higher raw-material costs, can sharply lift margins. Chin-Poon is building its industrial-control and AI-adjacent business, while TPT is moving from home-appliance boards toward more complex computing and automotive products. Their progress is uneven, and execution remains uncertain, but the market is watching for signs that a higher-value product mix can offset industry overcapacity, automakers’ annual price cuts, and cost pressures. Meanwhile, automotive manufacturers’ shift of capacity toward AI may help ease long-standing oversupply in automotive PCBs.

Main Body

Automotive PCB shares advanced on October 28, 2026, as investors focused on the possibility that manufacturers could change the composition of their businesses. Chin-Poon and TPT both hit their limit-up prices: Chin-Poon locked at NT$54.5, while TPT rose to NT$56.3. The market interpretation was notable because it did not depend on a straightforward improvement in vehicle sales. Instead, the rally reflected growing interest in whether PCB suppliers can use higher-value applications to improve earnings, even while their traditional automotive business faces structural challenges.

The immediate catalyst was Kingboard’s third-quarter financial performance. The company reported year-over-year revenue growth of 66.06% and a 239.67% increase in net profit attributable to the parent company. Its gross margin climbed to approximately 34%, compared with approximately 21% in the second quarter. Kingboard attributed the improvement mainly to increased revenue from AI and high-speed communications PCBs, as well as its ability to pass on higher raw-material costs. The figures offered investors an example of how a more favorable product mix and stronger pricing power can affect profitability in the PCB industry.

Kingboard’s results also gave the market a reference point for evaluating other manufacturers. Revenue growth alone has not always translated into better earnings for automotive PCB companies. For years, suppliers have contended with excess production capacity, annual price reductions demanded by automakers, and raw-material cost increases that can be difficult to transfer to customers quickly. Under those conditions, additional sales may produce limited profit improvement. Kingboard’s results suggest that a shift toward higher-end products can change the equation, although the outcome will depend on each company’s product capabilities, customer relationships, production readiness, and cost management.

Capacity allocation is another part of the story. As major automotive manufacturers gradually move production capacity toward AI-related products, the industry’s long-running oversupply of automotive PCBs may ease. The adjustment does not necessarily mean that vehicle demand is accelerating. Rather, it could reflect a change in how manufacturers deploy their facilities and resources. If capacity previously serving automotive applications becomes dedicated to AI products, the balance between supply and demand for automotive boards could improve. At the same time, the AI market’s demand for PCB capacity may put pressure on suppliers to upgrade technology and compete for more complex, higher-value work.

Chin-Poon: industrial-control orders support revenue. Chin-Poon has been working to expand beyond automotive boards into industrial-control products and applications related to AI. Its stated goal is to reduce automotive products’ share of revenue from nearly 80% to approximately 50%. The strategy aims to diversify its business and make the company less dependent on a single end market. Industrial-control and AI-related products may offer opportunities to improve the product mix, but the transition requires the company to secure orders and scale production while continuing to serve its existing automotive customers.

Chin-Poon’s recent revenue figures show signs of progress. September revenue reached NT$1.871 billion, up 44.28% year over year and the highest level in 102 months. The company attributed the increase mainly to new orders for industrial-control electronics. Third-quarter revenue also rose 24.7% year over year. These results indicate that demand outside its traditional automotive business is contributing to growth, although revenue data by themselves do not establish how much the newer business has contributed to earnings.

The transformation is not complete. During the first half of the year, a recovery in demand for gasoline-powered vehicles lifted the automotive segment’s share of Chin-Poon’s revenue. It rose to 77%, compared with 75% last year, moving in the opposite direction from the company’s longer-term diversification target. That change illustrates a practical challenge for companies in transition: short-term shifts in customer demand can alter product mix even as management pursues a longer-term plan. Chin-Poon’s new plant in Thailand is expected to begin operations in early 2027. Investors will be watching whether the facility can support additional non-automotive orders and contribute to a more balanced business.

TPT: moving from home-appliance boards toward computing boards. TPT’s transformation involves a more substantial change in product focus. The company historically relied mainly on home-appliance PCBs. The home-appliance segment’s share of revenue declined from 43.5% at the end of last year to 37% in the second quarter of this year, as the product mix shifted toward higher-layer-count computing and automotive boards. Board complexity has been increasing: the layer count has moved from 10 layers to 20 layers, with a long-term objective of reaching 40 layers. Higher layer counts can support more complex applications, but they also require the technical capabilities and manufacturing processes to meet customer specifications consistently.

TPT has also formed a joint venture with South Korean high-end PCB manufacturer Isu Petasys (梨樹飛達, 007660-KS) to enter the AI-server supply chain. This move could provide access to a market where demand for more advanced boards is growing. However, participation in that supply chain is not an automatic guarantee of sustained orders or profits; execution, product qualification, production yields, and customer demand will determine how meaningful the opportunity becomes.

TPT’s revenue and margin figures suggest improvement, while also showing that profitability remains a key issue. September revenue was NT$1.536 billion, an increase of 72.8% year over year and the highest level in 56 months. Third-quarter revenue reached a new high in 18 quarters. Its gross margin improved from -12.5% in the first quarter to -5.91% in the second quarter. Market expectations point to a possible break-even result in the fourth quarter, but that remains an expectation rather than a confirmed outcome. The company will need further improvement in margins to demonstrate that revenue growth and product upgrading are translating into sustainable financial performance.

Taken together, the two companies represent different stages and approaches to transformation. Chin-Poon is adding industrial-control and AI-adjacent business while continuing to rely heavily on automotive products. TPT is changing its product mix more visibly, reducing the relative importance of home-appliance boards and pursuing higher-layer computing products and AI-server opportunities. Their progress is relevant to the wider automotive PCB sector because it illustrates how manufacturers may seek growth and better margins without depending solely on a recovery in vehicle demand.

The broader market thesis combines two developments: expectations of improving supply-demand conditions for automotive PCBs and confidence that manufacturers can shift toward more profitable applications. AI’s demand for PCB capacity is not confined to AI companies. By attracting investment and capacity, it may influence supply allocation across the wider PCB industry, potentially affecting non-AI markets as well. Still, transformation is neither immediate nor assured. Capacity changes, customer qualification, product complexity, pricing, and raw-material costs will all influence the results. The sharp share-price moves reflect market expectations about these factors, not proof that every supplier has already achieved a durable earnings recovery.

This article is for informational purposes only and does not constitute investment advice. The stocks and other financial products mentioned are provided for reference; investors should make independent judgments and carefully assess risks.

Key Insights Table