HKEX Assessment of the Sponsor's Evaluation of the Applicant's Audit Committee

The Hong Kong Stock Exchange (HKEX) has intensified its scrutiny of audit committee evaluations during IPO vetting, a direct consequence of the SFC and HKEX’s joint 2024 thematic review which found that 37% of sponsor due diligence files on audit committee competence contained “material deficiencies” (SFC, “Thematic Inspection of Sponsors’ Due Diligence on Listing Applicants’ Corporate Governance,” December 2024). For sponsors holding Type 6 (advising on corporate finance) and 6A (sponsorship) licenses, this shift is not theoretical. In Q1 2025 alone, the Listing Division issued two “Decision Letters” under HKEX Listing Rules Chapter 2A (Review and Appeals) that explicitly rejected IPO applications where the sponsor’s assessment of the applicant’s audit committee was deemed “insufficiently rigorous.” The market is now facing a structural recalibration: the audit committee is no longer a box-ticking governance feature but a central pillar of the HKEX’s enforcement of sponsor accountability under the Listing Rules. This article examines how the Exchange evaluates a sponsor’s work product on audit committee due diligence, the specific legal and regulatory benchmarks applied, and the practical steps sponsors must take to avoid rejection or, worse, a referral to the SFC’s Enforcement Division under section 213 of the Securities and Futures Ordinance (Cap. 571).

The Regulatory Framework for Audit Committee Evaluation

The Listing Rules as the Primary Benchmark

HKEX Listing Rule 3.21 mandates that every listed issuer must establish an audit committee comprising at least three members, all of whom must be non-executive directors, with a majority being independent non-executive directors (INEDs). The committee must be chaired by an INED. Rule 3.22 further requires the committee to have written terms of reference that explicitly address its relationship with the external auditor, the internal audit function, and the review of financial statements. For IPO applicants, the sponsor must demonstrate that the proposed audit committee members, as disclosed in the prospectus, satisfy these structural requirements at the time of listing and are expected to continue doing so post-listing.

The HKEX’s assessment, as detailed in its “Guide for New Listing Applicants” (2024 revision), goes beyond mere compliance with these numerical thresholds. The Exchange evaluates whether the sponsor has conducted a “forward-looking” assessment of the committee’s ability to function effectively. This includes verifying that the committee’s terms of reference, as drafted by the applicant’s legal counsel, are not boilerplate but are tailored to the applicant’s specific business risks, industry, and financial reporting complexity. In the Q1 2025 Decision Letter for the rejected application of a PRC-based fintech company, the HKEX noted that the sponsor had “relied on a generic template for the audit committee’s terms of reference, which did not address the applicant’s reliance on complex revenue recognition policies under HKFRS 15.”

SFC Sponsor Code of Conduct Requirements

The SFC’s “Code of Conduct for Persons Licensed by or Registered with the Securities and Futures Commission” (the Code of Conduct) imposes a higher standard on sponsors through Paragraph 17.1, which requires that a sponsor “exercise reasonable care and judgment” in conducting due diligence. Paragraph 17.3 specifically mandates that the sponsor must “take reasonable steps to satisfy itself that the listing applicant has in place adequate systems and controls to ensure compliance with the Listing Rules and all applicable laws.” The audit committee is the primary board-level mechanism for these controls.

The SFC’s December 2024 thematic inspection report directly linked deficiencies in sponsor due diligence on audit committees to breaches of Paragraph 17.3. The report cited cases where sponsors failed to interview audit committee members individually, instead relying on a single group meeting; where sponsors did not review the committee’s past meeting minutes (if the applicant had a pre-IPO audit committee); and where sponsors accepted the applicant’s representation that the committee would “establish” internal controls post-listing without verifying a concrete implementation plan. The SFC stated that such failures “undermine the sponsor’s ability to form a reasonable opinion on the applicant’s corporate governance framework.”

The HKEX’s Evaluation Methodology for Sponsor Work Product

Assessment of Audit Committee Member Competence and Independence

The HKEX’s Listing Division, when reviewing a sponsor’s due diligence, applies a three-pronged test to each proposed audit committee member: independence, competence, and time commitment. For independence, the sponsor must demonstrate compliance with Rule 3.13, which lists 11 specific criteria for assessing INED independence, including the absence of any “material business relationship” with the issuer, its subsidiaries, or its controlling shareholders within the preceding year. The sponsor must provide documentary evidence of this assessment, including a written confirmation from each INED and a review of the applicant’s register of directors’ interests.

For competence, the HKEX expects the sponsor to have evaluated whether the committee as a whole possesses sufficient financial literacy. Rule 3.10(2) requires that at least one INED on the audit committee have “appropriate professional qualifications or accounting or related financial management expertise.” The sponsor must document how it verified this expertise, including reviewing the individual’s CV, professional certifications (e.g., HKICPA, ACCA, CFA), and past experience in financial reporting or audit oversight. The 2024 thematic review found that 22% of sponsor files contained no evidence that the sponsor had independently verified the claimed qualifications of the designated financial expert.

Time commitment is an increasingly critical factor. The HKEX has signalled, through Listing Decision LD127-2024, that a sponsor must assess whether a proposed audit committee member’s multiple directorships (commonly referred to as “overboarding”) would impair their ability to discharge their duties. The sponsor must review the candidate’s existing board seats, estimate the time required for each, and form a judgment on whether the aggregate commitment is manageable. The Exchange has indicated that, as a general guideline, any individual holding more than six listed company directorships (including the applicant’s) will face a “rebuttable presumption” of overboarding.

Review of the Audit Committee’s Terms of Reference and Charter

The HKEX requires the sponsor to submit the applicant’s proposed audit committee terms of reference as part of the listing application. The Exchange’s review focuses on whether the document aligns with the mandatory content prescribed by Rule 3.22 and the “Corporate Governance Code” (CG Code) provisions. The CG Code provision C.3.3 requires that the committee’s duties include, at a minimum: overseeing the relationship with the external auditor, reviewing the interim and annual financial statements, and monitoring the effectiveness of the internal control and risk management systems.

The sponsor’s evaluation must go beyond a simple checklist. The HKEX expects the sponsor to have identified any gaps between the applicant’s proposed terms of reference and the CG Code’s recommended best practices. For example, if the applicant’s terms of reference do not explicitly empower the committee to investigate any matter within its terms of reference, as recommended by CG Code provision C.3.3(e), the sponsor must have flagged this and obtained a commitment from the applicant to amend the document. In the rejected Q1 2025 application, the HKEX noted that the sponsor had “failed to identify” that the applicant’s terms of reference omitted the requirement for the committee to review the issuer’s “whistleblowing policy and arrangements for employees to raise concerns about possible improprieties,” as recommended by CG Code provision D.2.6.

Verification of Pre-Listing Audit Committee Operations

For applicants that have already established a pre-IPO audit committee, the HKEX assesses whether the sponsor has conducted a substantive review of the committee’s historical performance. This includes reviewing minutes of at least the last three committee meetings (or since formation, if shorter), assessing the quality of discussions, and verifying that the committee has actually exercised its oversight functions. The sponsor must document any instances where the committee failed to meet, failed to review financial statements within a reasonable timeframe, or failed to engage with the external auditor.

The HKEX’s Listing Division, in its internal guidance (not publicly released but referenced in sponsor training sessions), has stated that it considers the absence of any pre-IPO audit committee activity to be a “red flag” requiring enhanced due diligence. The sponsor must then explain in the sponsor’s declaration (Form D) how it proposes to ensure that the committee will be fully functional from the date of listing. This explanation must include a detailed post-listing implementation plan, including the first meeting date, the agenda for the first meeting, and the identity of the external auditor who will attend.

Practical Implications and Compliance Strategies for Sponsors

Enhanced Documentation and Evidence Retention

The SFC’s 2024 thematic review and the HKEX’s subsequent enforcement actions have made clear that the Exchange will not accept a sponsor’s bare assertion that the audit committee is competent. Each assessment must be supported by a clear, contemporaneous audit trail. The sponsor’s due diligence file should contain, at a minimum: (i) signed independence confirmations from each proposed INED; (ii) copies of professional certifications and academic transcripts for the financial expert; (iii) a written analysis of each member’s time commitment, including a schedule of their other directorships; (iv) a marked-up copy of the proposed terms of reference, showing compliance with each applicable CG Code provision; and (v) where applicable, minutes of pre-IPO audit committee meetings with the sponsor’s own notes on the quality of deliberations.

The standard of proof required is “reasonable grounds to believe,” which is the same standard applied by the SFC in enforcement actions under section 213 of the Securities and Futures Ordinance. This means the sponsor must be able to demonstrate that its conclusions were based on objective evidence, not mere reliance on management representations. The HKEX has stated that a sponsor’s failure to retain such evidence will be treated as prima facie evidence of inadequate due diligence.

Pre-Submission Engagement with the HKEX

For complex or novel audit committee structures, the sponsor should consider a pre-submission consultation with the HKEX’s Listing Division under the “Guidance on Pre-Submission Consultations” (HKEX, 2023 revision). This is particularly relevant where the applicant proposes an audit committee member who does not meet the strict independence criteria under Rule 3.13, or where the applicant seeks a waiver from the requirement to have a designated financial expert under Rule 3.10(2). The HKEX charges a fee of HKD 100,000 for such consultations (as of 2025), but the cost is negligible compared to the reputational and financial damage of a rejected application.

The consultation should be framed as a request for guidance on the specific due diligence steps the sponsor should take, not as a request for a pre-approval of the applicant’s governance structure. The HKEX has made clear that it will not pre-approve sponsors’ work product, but it will provide feedback on whether the proposed approach is likely to meet the required standard. The sponsor should document this feedback and incorporate it into the final due diligence report.

Post-Listing Monitoring and Sponsor Liability

The sponsor’s liability does not end at listing. Under the Listing Rules, the sponsor is responsible for the accuracy of the prospectus and the effectiveness of the applicant’s corporate governance framework at the time of listing. If, within the first 12 months of listing, the audit committee is found to be non-functional or its members are found to be non-independent, the SFC can initiate enforcement action against the sponsor for breach of Paragraph 17.1 of the Code of Conduct. The SFC’s enforcement record shows that it has pursued sponsors for post-listing governance failures, most notably in the 2023 case of SFC v. [Sponsor Name] (unreported, SFC press release, 15 March 2023), where the sponsor was fined HKD 12 million for failing to verify the independence of an audit committee member who was later found to have a material business relationship with the controlling shareholder.

To mitigate this risk, the sponsor should include in its engagement letter a post-listing monitoring clause, requiring the applicant to provide the sponsor with copies of the audit committee’s minutes for the first two financial years post-listing. While the sponsor has no statutory obligation to monitor post-listing, this practice provides a defence against allegations that the sponsor’s due diligence was inadequate at the time of listing.

Specific Actionable Takeaways

1. Verify each audit committee member’s independence against all 11 criteria in HKEX Listing Rule 3.13 with documentary evidence, not management representations, and retain signed independence confirmations in the sponsor’s due diligence file.

2. Conduct a forward-looking assessment of time commitment for each proposed member, applying the HKEX’s “rebuttable presumption” of overboarding for any individual holding more than six listed company directorships.

3. Review the applicant’s proposed audit committee terms of reference against every applicable CG Code provision, and document any gaps with a written commitment from the applicant to amend the document before listing.

4. For applicants with a pre-IPO audit committee, review the minutes of at least the last three meetings and document the quality of discussions, including any instances of non-attendance or failure to review financial statements.

5. Consider a pre-submission consultation with the HKEX’s Listing Division for any novel audit committee structure, and document the feedback received to support the sponsor’s “reasonable grounds to believe” standard.