Hong Kong is once again the world's number-one venue for an IPO. In 2025, the Hong Kong Stock Exchange (HKEX) raised HK 274.6 billion (about US $35.3 billion) across 106 new listings, ranking first globally for the first time since 2019, and momentum carried into Q1 2026 with roughly HK$109.9 billion raised (HKEX). For companies weighing a Hong Kong listing, the message is clear: the Hong Kong IPO market offers deep capital, a global investor base, and a direct bridge between Mainland China and the world.
This insight walks you through the full Hong Kong IPO process, from IPO preparation and Hong Kong IPO requirements to the Hong Kong IPO prospectus, the Hong Kong IPO timeline, and the costs of an IPO in Hong Kong, whether you are targeting the Main Board or GEM, understanding how an HKEX IPO works is the first step toward a successful HK IPO.
Why Launch an IPO in Hong Kong?
Beyond raising capital, an IPO in Hong Kong delivers strategic advantages that make the Hong Kong IPO market a magnet for Asian and international issuers:
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Access to global and Mainland capital: The A+H listing route lets Mainland-listed firms tap international investors; A+H deals drove over half of all funds raised in 2025.
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Free flow of capital: No capital controls and no restrictions on repatriating funds raised.
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A trusted internationally aligned regulator: The Securities and Futures Commission (SFC) and HKEX operate a disclosure-based regime aligned with global standards.
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Sector-specific listing routes: For biotech, specialist technology, and high-growth companies (see Chapter 18A/18C below).
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Strong secondary-market liquidity: It has average daily turnover up 43% year-on-year in 2025.
What Is the Hong Kong Stock Exchange (HKEX)?
The HKEX operates as the city’s primary securities market. It offers two distinct platforms for companies seeking to go public: the Main Board and GEM.
The Main Board caters to well-established companies with substantial track records and meets stringent financial criteria. It attracts larger corporations and provides access to a wide pool of institutional and retail investors.
In contrast, GEM serves as an alternative for small and mid-sized, growth-oriented companies. It features less stringent listing requirements, allowing emerging businesses to access public capital markets earlier in their development.
Compared to other major exchanges, the HKEX’s unique value proposition is its strategic position as a bridge between the Chinese Mainland and international markets. This unique role allows listed companies to tap into both Chinese and global investor bases, potentially leading to higher valuations and increased liquidity.
The HKEX’s regulatory framework tightly aligns with international standards, fostering investor confidence and maintaining market integrity.
What Are the Main Board Listing Requirements in Hong Kong?
Before being considered to list on the HKEX Main Board, companies must meet specific financial and operational requirements. These criteria ensure that only qualified businesses gain access to this premier platform.
Financial Requirements
Applicants must satisfy one of the following three financial tests:
Profit Test
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Minimum aggregate profit of HKD 80 million over the past three years
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At least HKD 35 million profit in the most recent year
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At least in aggregate HKD 45 million profit for the two preceding years
Market Capitalisation/Revenue Test
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Minimum market capitalisation of HKD 4 billion at listing
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Revenue of at least HKD 500 million for the most recent audited financial year
Trading, Management, Ownership Stability
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Trading record of a minimum of three financial years
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Management continuity for at least the three preceding financial years
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Ownership continuity and control for at least the most recent audited financial year
Shareholder Base
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Minimum of 300 shareholders at the time of listing
Public Float
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New ongoing public-float rules took effect 1 January 2026: issuers with a market capitalisation above HKD 4 billion may adopt an alternative threshold of at least 10% of issued shares with a public-float market value above HKD 1 billion, and A+H issuers must keep H-shares in public hands at 5% of the class or above HKD 1 billion in value.
As with any leading exchange, these criteria aim to maintain the quality and stability of Main Board listings, protecting investor interests and market integrity.
What Are the GEM Listing Requirements in Hong Kong?
GEM offers a more accessible route for small and mid-sized companies to go public. Its requirements are less stringent than those of the Main Board, supporting emerging businesses in their growth journey.
Key GEM listing criteria include:
Financial Requirements
Applicants must satisfy one of the following financial tests:
The cash flow test
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Positive cash flow from operating activities of at least HKD 30 million in total for the two preceding financial years
- Market capitalisation of at least HK$150 million at listing
The market capitalisation / revenue / research and development test
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a market capitalisation of at least HKD 250 million at the time of listing
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revenue of at least HKD 100 million in total for the two preceding financial years, with a year-on-year growth of revenue over the two financial years
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expenditure on research and development of at least HKD 30 million in total for the two preceding financial years
Management and Ownership Stability
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Management continuity for at least the two preceding financial years
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Ownership continuity and control for at least the most recent audited financial year
Public Float
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Public float between 15% – 25% if the market capitalisation of the issue at the time of listing exceeds HKD 10 billion
GEM’s more flexible criteria allow small and mid-sized companies to access public capital earlier in their development, fostering innovation and growth in the Hong Kong market.
Assembling a Team of Advisors for Listing on the HKEX
A successful IPO involves several key players, each contributing unique expertise to the listing process. As part of your listing initiative, it is widely advised to assemble a team comprised of expert advisors.
You may choose to source these experts yourself, but it is generally recommended that you partner with a trusted, local service provider such as Ascentium that can provide and/or source these experts on your behalf. Ideally, you should appoint these advisors 6 to 12 months ahead of your proposed listing. These advisors include, but are not limited to:
Listing Applicant (Your Company)
- Furnishes comprehensive business information
- Assists with due diligence
- Helps draft the prospectus
- Provides picture and future
- Presents to potential investors
Sponsor
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Appointed at least two months before application submission
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Represents the company to communicate with the HKEX
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Conducts due diligence on the company, shareholders, and management
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Ensures prospectus accuracy and completeness
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Coordinates all parties involved in the IPO
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Multiple sponsors can be appointed, with at least one independent to the company
Reporting Accountant
- Prepares financial reports for the prospectus
- Provides assurance services
- Issues financial comfort letters to sponsors and underwriters
- Reviews cash flows, profit forecasts and valuation
Legal Advisers
- Two teams: one for the company, the other for sponsors and underwriters
- Offer legal guidance and opinions throughout the IPO process
Additional Key Figures
- Property Valuers
- Company Secretary
- Market Research Consultants
- Internal Control Advisers
- Investors/Public Relations Consultants
- Receiving Banks
- Share Registrars
- Financial Printers
- ESG advisers
- Registered Agent (if applicable)
Each of these roles plays a crucial part in guiding a company through the complex IPO journey, ensuring compliance with regulations and maximising the chances of a successful listing.
What Are the Three Stages of the Hong Kong IPO Process?
The process of launching an IPO on the HKEX comprises three distinct stages. Each stage is essential in preparing your company for public listing, ensuring regulatory compliance, and positioning your offering for success in the market. Let’s examine these stages in detail:
Stage 1: Preparation
- Timeline: 1-2 years before listing application submission
- Summary: Assess readiness, restructure if necessary, and prepare essential documentation
Company Evaluation
Companies must evaluate whether they:
- Meet all applicable listing requirements
- Can address existing legal or accounting issues
Corporate Realignment
Following the assessment, companies often:
- Restructure the listing group, ensuring directors possess the required qualifications and experience
- Incorporate the listing vehicle as a public limited company (PLC)
- Transfer contractual rights, licences, and assets to the listing group
- Identify which business units to be excluded from the listing group
Initial Strategy Session
A meeting with all key figures sets the IPO process in motion:
- Agree on a timetable with concrete milestones
- Discuss offering details, size, and proceeds distribution
- Identify potential issues and their implications
- Company management presents the business, industry, financials, and growth plan
Comprehensive Review
Sponsors, the issuer, and legal teams conduct an extensive review of:
- Legal aspects
- Business operations
- Financial status
- Personality and qualifications of directors and senior management
Listing Document Creation
Key figures collaborate to prepare the listing prospectus:
- Content is regulated by Listing Rules
- Accuracy is crucial, as inaccuracies may lead to civil and/or criminal liability
- Serves as the main document for listing and marketing purposes
Formal Application
- Form A1 (Main Board) or Form 5A (GEM) submitted at least 80 days before listing
- Contains a detailed draft of the prospectus
- Represents the official listing request to the HKEX
Stage 2: Regulatory Review
- Timeline: 4-8 weeks post-application submission
- Summary: HKEX examines application, provides feedback, and conducts approval hearing
Application Scrutiny
- HKEX performs a 3-day initial check
- Verifies submission completeness
- Incomplete applications face rejection; resubmission permitted after 8 weeks
- HKEX offers feedback within 4 weeks of acceptance
- Company revises prospectus and submits additional information as needed
- Swift response to HKEX queries is crucial for meeting timeline and avoiding additional costs
Approval Discussion
- Scheduled once HKEX queries are addressed
- Typically occurs 20 days pre-listing
- Application and key unresolved matters reviewed with HKEX
- HKEX determines approval or sets further requirements
Stage 3: Marketing and Offering
- Timeline: During and after regulatory approval
- Summary: Finalise offering details and execute public sale
Post-Approval Actions
- HKEX decides whether to approve the application or set additional conditions
- Company’s board of directors holds meeting to approve the listing and all other related documents, structures, policies, etc.
- Publish post-hearing decision and prospectus on HKEX website
Marketing Activities
- Conduct roadshows to identify demand
- Establish initial offering price of shares
Public Offering Process
- Register prospectus with Hong Kong Companies Registry
- Open public offering for approximately three and a half days
- Conclude with book-building process
Final Steps
- Set initial offering price
- Sign underwriting agreement
- Commence public offering
This stage represents the final phase of the IPO process, culminating in the company’s shares being offered to the public on the HKEX.
How Long does the IPO process typically take in Hong Kong?
The Hong Kong IPO process typically takes about 6 to 9 months from formal kick-off to the first day of trading. Earlier internal IPO preparation and restructuring, however, often begin 1 to 2 years in advance, so the full Hong Kong IPO timeline depends heavily on how listing-ready a company already is.
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Initial Preparation and Restructuring
1 to 6 months as the company evaluates listing readiness, reorganises its corporate structure, appoints the sponsor, and drafts the listing application and Hong Kong IPO prospectus.
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Regulatory Vetting and Review
3 to 6 months under the HKEX listing process and SFC framework, regulators review the Form A1 submission, with straightforward cases targeting a 40 business day turnaround per comment round.
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Listing Hearing and Marketing
3 to 4 weeks in the Listing Committee holds a hearing, followed by the marketing roadshow, bookbuilding, and final pricing.
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Allotment and Settlement
In two business days, subscriptions are settled through HKEX's FINI platform, which shortens the settlement cycle to T+2 and clears the path for public trading to begin.
How Can an Adviser Help You Launch an IPO in Hong Kong?
Preparing for an HKEX IPO tests even well-run companies; the Hong Kong IPO process demands extensive data, specialist skills, and strict regulatory adherence. The process requires extensive data compilation, staff resources, technology upgrades, and strict regulatory adherence. These demands often strain a company’s time, skills, and finances.
However, these obstacles shouldn’t discourage companies from pursuing an HKEX listing. Collaborating with an experienced local service provider can significantly improve the IPO preparation process and reduce potential hurdles and risks.
A proficient partner like Ascentium offers valuable support across various aspects of listing preparation:
- Detailed, on-the-ground understanding of HKEX rules and listing criteria
- Support for financial data preparation and standardisation
- Advice on market timing and valuation approaches
- Legal, accounting, and technology experts
- Assistance with public communications and stakeholder relations
By working with a local service provider like Ascentium, companies can maintain their operational momentum while ensuring thorough IPO preparation. This collaborative method increases the chances of a successful listing and sets the foundation for sustained success as a public entity.
Where to Next?
A successful HKEX listing is within reach, even with the complexities involved. Whether you’re aiming for the Main Board or GEM, Ascentium can guide you through the process, offering local expertise and comprehensive support. We’ll help ensure a seamless transition to a public entity, setting the stage for future growth.
