One of the quiet winners of the AI boom is about to test the public markets. Zhongji Innolight, a Chinese maker of high-speed optical transceivers, has started gauging demand for a Hong Kong listing worth as much as $8bn.
The Shenzhen-listed company won approval for the deal on Friday, Bloomberg reported. It began meeting analysts and investors on Monday and could start taking orders as soon as this week. The size and timing may still change.
Why it matters
Optical transceivers are the unglamorous plumbing of the AI build-out. They convert data into light and back again, moving it between the chips and servers packed inside a data centre. As AI systems grow, so does the need for them.
Innolight is one of the biggest suppliers in the world. Its InnoLight subsidiary calls itself a leader in data-centre optics, and shipped some of the industry’s first 800G modules back in 2020. It sits in the same picks-and-shovels lane as Eoptolink, a rival that is lining up its own Hong Kong listing of up to $5bn.
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The demand shows up in the numbers. Innolight posted first-quarter revenue of 19.5bn yuan ($2.9bn), close to three times the figure a year earlier. Profit rose almost fourfold, to 6.3bn yuan. Its Shenzhen shares have climbed about 430% over the past year.
The company took its current shape by pairing an industrial-equipment business with its optics arm, InnoLight, in Suzhou. A heavyweight bank syndicate is running the sale. Goldman Sachs, China International Capital Corp, Morgan Stanley and GF Securities are leading it, with Citigroup, HSBC and others also on the deal.
Hong Kong’s biggest since Alibaba
At $8bn, the listing would be Hong Kong’s largest first-time share sale since Alibaba raised $12.9bn in 2019. It would easily top Luxshare Precision’s $3.1bn debut this month to become the city’s biggest of the year, CNBC noted.
It caps a bumper run for the city. Hong Kong just logged its strongest first half for listings in five years, raising about HK$210bn across 85 deals, according to KPMG. Analysts count more than 500 companies in the pipeline. Innolight’s offering could push the 2026 total past the roughly $37bn raised in all of 2025.
Much of that boom is a China AI story. A string of firms tied to the AI supply chain, from optical parts to memory, have rushed to list in Hong Kong this year, joining names such as memory maker CXMT.
The catch
The timing is not all smooth. Chip stocks have slid lately on worries that the AI spending spree is getting harder to justify. Innolight’s own shares sit about 27% below their June peak.
That is the wider question hanging over the AI trade, and over the boom-and-bust risk in its supply chain. For now, the money is still flowing, and Innolight wants to raise its share while it can. The company did not respond to a request for comment.
