A weak debut for a profitable AI-hardware supplier shows Hong Kong investors now price customer concentration and debt, which will shape terms for other A-share companies planning H-share listings.
Dongshan Precision, a Suzhou maker of printed circuit boards and optical modules for AI data centers, fell below its offer price on its first day of trading in Hong Kong on October 28. The H shares, sold at HK$86.80, dropped more than 6% to an intraday low of HK$81.50 before closing at HK$86.15, down 0.75%, according to reports by National Business Daily and CLS, carried by Futu News.
The listing raised about HK$9.9 billion (US$1.3 billion) from 113,783,200 shares, the largest Hong Kong listing in about two months, Bloomberg reported via The Edge Malaysia. The company had set its price on October 24 below the HK$93.80 maximum of its range.
The weak debut stands out because the company’s earnings are rising quickly on AI demand. Investors appear to be weighing that growth against a heavy debt load, customer concentration and a sharp fall in its Shenzhen-listed shares, the same questions any A-share hardware company planning a Hong Kong listing will face.
Retail demand fell short while cornerstones took half the deal
Dongshan Precision’s Hong Kong public tranche was only 0.52 times subscribed, the weakest for a Hong Kong IPO since February 2025, National Business Daily reported. Margin-financed applications covered 0.39 times, and 4,484 valid applications were received. The shortfall meant the retail tranche shrank from 10% of the offer to 5.19%, with 5,472,900 shares moved to the international tranche, which ended 3.17 times subscribed among 81 placees. Every applicant in the smaller retail pool received a full allotment.
Twenty cornerstone investors took 56,891,100 shares, or half the offer, subject to a six-month lockup. Bloomberg named CPE, Jane Street and Jump Trading among them; Chinese reports listed Alibaba’s investment arm, JPMorgan Asset Management, chip designer Montage Technology, foundry Nexchip and optical-network supplier FS.com. Francis Tan of Indosuez Wealth Management told Bloomberg that investors still want exposure to AI but increasingly demand visibility on earnings.
The pricing came after a difficult run in the company’s mainland shares. Its Shenzhen-listed A-shares closed at RMB104.60 on October 28 and had fallen 50.64% over three months, CLS reported, citing Wind data. Bloomberg reported that they were up 35% this year but almost 60% below their June peak.
AI demand has transformed earnings but brought leverage
The business behind the listing has changed quickly. In the first half of 2026, revenue rose 63.95% to RMB27.798 billion and net profit attributable to shareholders climbed 290.09% to RMB2.957 billion, Wallstreetcn reported. Annual revenue grew from RMB33.651 billion in 2023 to RMB40.125 billion in 2025.
Dongshan Precision ranked second globally in flexible circuit boards in 2025 and seventh in optical modules, according to industry data cited in a Beijing News report republished by 10jqka. It entered optical modules, which convert electrical signals to light for high-speed links inside AI clusters, by acquiring Source Photonics in 2025. The same report put total liabilities at about RMB38.5 billion at the end of 2025, an asset-liability ratio of 63.98%, with goodwill of about RMB4.77 billion from its acquisitions. Sales are also concentrated: the top five customers accounted for 54.1% of first-half revenue, and Apple alone for 30.1%, Yicai reported.
About 64.5% of the proceeds will fund new plants and line upgrades, including capacity for high-speed EML laser chips and optical modules, and about 20% is set aside for possible acquisitions in circuit boards, precision components and optical modules, CLS reported. Reuters, via China Daily Hong Kong, reported the optical expansion is planned in mainland China.
A cooler reception for AI hardware listings
The debut follows mixed results for other Chinese AI-hardware companies selling H shares this year. Circuit-board maker Victory Giant rose 50.09% on its April debut but now trades at HK$149.30, below its HK$209.88 offer price, while optical-module maker Zhongji Innolight broke its offer price on its first day in July, according to CLS. Hong Kong raised HK$388 billion from 118 listings in the first nine months of 2026, more than double a year earlier, Reuters reported, and EastFrontier noted earlier that Citi expects China AI listings to continue in Hong Kong.
A stabilization period for Dongshan Precision’s shares runs until November 22. Whether the stock recovers its HK$86.80 offer price in that window, and how the company’s third-quarter results compare with its first-half pace, will show whether the weak start reflects deal structure or a reassessment of AI-hardware valuations.