China's Longsys and Enflame set parallel $800M and $911M Hong Kong-linked listings

Shenzhen-based chipmaker Longsys (Longsys Electronics) is pursuing a Hong Kong Stock Exchange listing that could raise up to HK$6.28 billion, or roughly $801 million. According to a Bloomberg Technology report, Longsys's mainland-listed shares have climbed about 50% so far this year, and the Hong Kong offering comes as the company looks to build on that momentum. The choice of Hong Kong also fits a broader pattern: companies across China's AI chip supply chain have been lining up for listings there.

Tencent-backed Enflame becomes last of the "four little dragons" to go public

The same day, Shanghai-based Enflame Technology formalized its own listing plans. The company, which counts Tencent Holdings among its investors, is aiming to raise 6.12 billion yuan, or about $911 million, through its IPO, according to a Bloomberg Markets report. Enflame is described as the last of China's so-called "four little dragons" — a group of leading AI chip startups — to enter the public markets, which implies the other three have already completed their listings. The report doesn't name those companies specifically, so we're only noting what's confirmed here.

Why Hong Kong is the destination after U.S. restrictions

To make sense of why both companies are pursuing these listings, it helps to look at a backdrop that's solidified over the past few years. Continued U.S. restrictions on exporting advanced AI chips and chipmaking equipment to China have pushed Chinese semiconductor firms away from U.S. exchanges and Western capital, and toward more accessible markets — their own domestic exchanges and Hong Kong. That shows up in both cases here: Longsys is raising additional capital in Hong Kong after its mainland shares already rallied, while Enflame is joining the listing wave late, backed by an equity stake from a major platform company, Tencent. Since both companies are in the AI chip business, these listings suggest that demand for AI infrastructure is now extending into fundraising for the supply-chain companies that sit beneath it.

Longsys vs. Enflame, by the numbers

Category	Longsys	Enflame
Headquarters	Shenzhen	Shanghai
Listing venue	Hong Kong Stock Exchange	Shanghai Stock Exchange (STAR Market)
Target IPO proceeds	HK$6.28 billion (about $801 million)	6.12 billion yuan (about $911 million)
Key context	Onshore shares up about 50% year-to-date	Backed by Tencent Holdings; last of the "four little dragons" to list

Enflame's target raise is roughly $100 million larger than Longsys's. The two figures are denominated in different currencies (Hong Kong dollars versus yuan), and both remain targets subject to final pricing.

Editor's take

The detail worth paying closest attention to here is the sequencing. Enflame going public last among the "four little dragons" means its earlier-listed peers have already had their valuations tested by the market, giving investors a built-in benchmark for judging Enflame. The pattern of a major platform company like Tencent holding equity in an AI chip startup and drawing renewed attention at the moment of that startup's listing is also worth comparing to similar chip investment portfolios held by other Chinese tech giants, such as Alibaba or Baidu.

For Korea's semiconductor and AI industry, two things stand out. First, Chinese AI chip companies keep raising large sums through the more accessible Hong Kong market rather than U.S. exchanges. Second, that capital ultimately flows toward areas — like memory and AI accelerators — where these firms compete directly with Korean companies. Memory makers such as Samsung Electronics and SK hynix will want to keep watching how quickly this listing capital translates into actual production capacity.