Eoptolink Files for $5 Billion Hong Kong AI Listing

A Chinese manufacturer of high-speed optical transceivers has officially applied for a secondary listing in Hong Kong, with expectations of raising as much as $5 billion. This figure surpasses the roughly $3 billion that was previously floated in April, indicating that investor appetite has intensified beyond initial projections.

While the spotlight often falls on Nvidia and the latest AI models, the unsung infrastructure players connecting the world’s data centers are enjoying a massive boom. Eoptolink specializes in optical transceivers,the components that convert electrical signals into light and back again, enabling the rapid transfer of data between servers and chips. As AI clusters expand, these parts become indispensable. Training and inference workloads demand terabytes per second in throughput, which is why hyperscale cloud providers are rushing to adopt 800G and 1.6T modules, Eoptolink’s core offering.

The company’s customer base reads like a who’s who of the tech industry. Google, Microsoft, and Amazon all depend on its transceivers to link their sprawling data center networks. The financial results reflect that dependency. For 2025, Eoptolink reported revenue of roughly 24.8 billion yuan (around $3.7 billion), while net profit surged 236% to approximately $1.4 billion. Its Shenzhen-listed shares have climbed nearly 80% year-to-date, though the Hong Kong listing still requires approval from shareholders, China’s securities regulator, and Hong Kong’s exchange.

Eoptolink is part of a broader shift. Hong Kong has become the preferred destination for Chinese tech companies as US and European barriers tighten. AI-infrastructure firms are leading the charge. For instance, Baidu’s chip unit is reportedly targeting a $50 billion Hong Kong IPO, and Apple suppliers have raised billions to retool for AI hardware. The city now handles more than half of China’s chip imports, making it the hinge of the global chip trade.

This dynamic creates an awkward geopolitical knot. America’s AI boom, driven by American hyperscalers, relies in part on Chinese optical components, even as both economies attempt to decouple. Optics have so far avoided the export control battles that have ensnared advanced semiconductors. Eoptolink selling to Google and Amazon represents a link that neither Washington nor Beijing has moved to sever, at least for now.

The risk, however, is shared. Riding the AI capex wave means riding it down. Eoptolink’s fortunes are tied to hyperscalers spending roughly $700 billion annually on infrastructure. That spending depends on AI delivering returns, an assumption that markets are increasingly questioning. If the buildout slows, the picks-and-shovels sellers will take a hit alongside everyone else. For the moment, though, demand is real and profits are enormous. In a gold rush, the company selling the wiring can do very well indeed.