StepFun Drops Offshore Structure for Hong Kong IPO Amid China's RedChip Crackdown

A Structural Shift That Signals a Broader Regulatory Turn

A Chinese AI startup is dismantling its offshore corporate architecture. The reason reveals more about Beijing's regulatory direction than about any single company.

Chinese AI startup StepFun is unwinding its offshore incorporation structure to pave the way for a planned Hong Kong IPO, as Beijing tightens scrutiny of a system widely used for overseas fundraising. Shanghai based StepFun has decided an onshore corporate structure would be more appropriate as it is heavily backed by state capital.

The firm's restructuring highlights how Chinese companies are moving quickly to comply with regulatory guidance in order to preserve their overseas listing ambitions and capitalise on investor demand for AI and semiconductor stocks.

This is not a company retreating from public markets. It is a company repositioning to access them and doing so under conditions that did not exist a year ago.

What Is StepFun and Why Does It Matter?

Founded in April 2023 by former Microsoft Vice President Jiang Daxin, StepFun has emerged as one of China's prominent AI startups focused on developing large language foundation models.

StepFun counts investment vehicles affiliated with Shanghai municipal and district governments among its backers, along with Qiming Venture Partners and technology giant Tencent Holdings. In February, StepFun hired Yin Qi, founder of facial recognition company Megvii Technology, as its president to enhance its core management team.

The combination of Tencent backing, state linked investors, and a leadership hire from one of China's most recognized computer vision companies builds a profile that extends well beyond a typical early stage AI lab. StepFun is building for institutional scale and now, for institutional investors in public markets.

StepFun's Step 3.5 Flash model has ranked among the three most used models on the OpenClaw AI agent platform, alongside competitors MiniMax M2.5 and Kimi K2.5.

Commercial traction at this level ranking in the top three on a major agent deployment platform is exactly the kind of proof of adoption that public market investors in Hong Kong will want to see.

The Cayman Islands Problem: What Red Chip Structures Are and Why Beijing Is Targeting Them

To understand StepFun's restructuring, you need to understand what it is dismantling.

China's securities regulator said last month it had instructed some so called red chip companies registered abroad, mainly in tax havens, but holding assets and businesses in China via equity ownership to unwind the structure.

Corporate records indicate that StepFuns previous structure involved the Cayman Islands.

The red chip structure was the dominant template for Chinese tech companies seeking to list on international exchanges for over two decades. It allowed companies to maintain domestic operations while placing the legal entity in a jurisdiction typically the Cayman Islands that was more accessible to foreign institutional investors and compatible with international stock exchange listing requirements. Alibaba, Tencent, and JD.com all used versions of this structure.

Beijing's new regulatory stance signals a clear preference for onshore domicile, especially for companies with significant state linked backing. The logic is straightforward companies receiving state capital should be subject to domestic governance frameworks, not offshore ones.

The IPO Ambition $10 Billion Valuation, $500 Million Target

StepFun's restructuring is not defensive it is offensive. The company is preparing to list, not simply to survive regulation.

A February report by Chinese publication Caijing stated that StepFun had been planning to raise between 2 billion yuan and 3 billion yuan in a pre IPO funding round at a valuation of up to $6 billion. The report added that the company aimed to file for a Hong Kong IPO by the end of June at a valuation of $10 billion for anchor investors.

StepFun is considering an initial public offering in Hong Kong that may raise about $500 million, with the Shanghai based startup potentially going public as soon as this year. StepFun has held discussions with prospective advisers about the share sale.

The valuation progression is notable. The $6 billion pre IPO figure and the $10 billion anchor investor target represent a significant step up from any implied valuation in earlier funding rounds. That gap reflects investor appetite for Chinese AI exposure as much as it reflects StepFun's own commercial progress.

Hong Kong's IPO Resurgence: Why This Market Matters Now

StepFun is not listing in Hong Kong by accident. It is listing there because Hong Kong is where the momentum is.

After a bumper IPO year for Hong Kong in 2025 with funds raised surging 231% to $37 billion, more than 530 companies have filed applications as of last month to list, most of them Chinese, according to stock exchange data.

One fifth of 131 Hong Kong listings China approved last year involved offshore holdings, the majority of which used the red chip structure, according to Chinese law firm Hankun.

A 231% surge in funds raised in a single year is exceptional by any global IPO market standard. Hong Kong has re established itself as the primary gateway for Chinese technology companies seeking international capital and the pipeline of over 530 pending applications suggests the momentum is building further into 2026.

For StepFun, completing its restructuring ahead of a June filing target positions it to capture that window while investor appetite for Chinese AI remains strong.

The Regulatory Risk: Restructuring Is Costly and Time Consuming

StepFun's decision to act quickly is the right call but the path is not without risk.

Experts have said the move could delay some listings as red chip companies scramble to change their domicile back to China, and some might even have to abandon their IPO plans as changing the legal structure of the company could be cost prohibitive.

Since the red chip structure has been put under the spotlight, a number of Chinese companies, mostly in the tech sector, have started deliberating whether they should follow regulators guidance and change their domicile to China, according to investors and lawyers.

The operational complexity of unwinding a Cayman Islands holding structure transferring IP, reorganizing shareholder agreements, re registering entities, and satisfying both Chinese regulatory requirements and Hong Kong Exchange listing standards simultaneously is significant. Legal fees alone can run into the tens of millions of dollars for a company of StepFun's complexity.

The companies that move fastest and most cleanly will have a structural IPO advantage. Those that hesitate, or whose structures prove too complex to unwind on schedule, risk missing the window entirely.

What This Means for China's Broader AI IPO Pipeline

StepFun is the most visible case but it is not the only one.

StepFun is not alone in reconsidering its corporate structure. The firm's restructuring highlights how Chinese companies are moving quickly to comply with regulatory guidance in order to preserve their overseas listing ambitions.

The pattern being established here has implications that extend across the entire Chinese AI startup ecosystem. Any company that has raised institutional capital using a red chip structure which includes a significant portion of China's major tech startups must now evaluate whether to follow StepFun's path or explore alternatives.

The companies most likely to follow quickly are those with heavy state linked investor bases, since their regulatory relationships make compliance the path of least resistance. The companies most at risk of delays are those with complex multi tier offshore structures, foreign domiciled early investors, or IP holdings spread across multiple jurisdictions.

FAQ StepFun's IPO and China's Red Chip Crackdown

Q1. What is StepFun and what does it do? StepFun was founded in April 2023 by former Microsoft Vice President Jiang Daxin and has emerged as one of China's prominent AI startups focused on developing large language foundation models. Its Step 3.5 Flash model ranks among the top three most used models on the OpenClaw AI agent platform.

Q2. Why is StepFun dropping its offshore structure? Shanghai based StepFun decided an onshore corporate structure would be more appropriate as it is heavily backed by state capital. China's securities regulator has instructed red chip companies registered abroad to unwind their structures

Q3. What was StepFun's previous corporate structure? Its previous structure had involved the Cayman Islands, according to corporate records.

Q4. How much is StepFun trying to raise in its Hong Kong IPO? StepFun is considering raising about $500 million in its Hong Kong IPO, which could happen as soon as this year. A pre IPO round was also planned at a valuation of up to $6 billion, with anchor investor valuation targets reaching $10 billion.

Q5. Who are StepFun's investors? StepFun counts investment vehicles affiliated with Shanghai municipal and district governments among its backers, along with Qiming Venture Partners and Tencent Holdings.

Q6. Will other Chinese AI companies follow StepFun's move? Since the red chip structure has been put under the spotlight, a number of Chinese companies, mostly in the tech sector, have started deliberating whether they should follow regulators guidance and change their domicile to China, according to investors and lawyers.