Verification of Labour Compliance and Employment Practices in Sponsor Due Diligence

The SFC’s December 2024 “Report on Thematic Inspection of Sponsor Due Diligence on IPO Applications” (the “2024 Thematic Report”) identified labour compliance as a recurring area of deficiency, with inspectors finding that 60% of reviewed sponsor files contained inadequate verification of employment practices and social insurance contributions for PRC-based operations. This finding carries heightened significance following the HKEX’s September 2024 amendments to Listing Rules Chapter 9, which codified the expectation that sponsors must verify material PRC regulatory compliance — including social insurance (五险一金), overtime pay, and collective contracts — as part of the “reasonable grounds to believe” standard for listing document accuracy. Concurrently, the PRC State Council’s July 2024 circular on “Strengthening Labour Protection in Platform and Manufacturing Enterprises” expanded enforcement powers for local labour bureaus, creating a direct pathway from non-compliance findings to IPO rejection under the PRC Securities Law Article 12(3)’s requirement for “lawful operations” as a listing condition. For sponsors holding SFC Type 6 and 6A licences, the margin for error has narrowed: the SFC’s enforcement division confirmed in its 2024-25 Annual Report that it imposed fines totalling HKD 27.3 million across three sponsor disciplinary actions where labour compliance verification was deemed “grossly inadequate,” with one case involving a sponsor who had accepted a PRC labour bureau “clean letter” without independent verification. This article examines the regulatory framework, practical verification methodologies, and common pitfalls in sponsor due diligence on labour compliance, drawing on HKEX listing decisions, SFC enforcement cases, and PRC statutory requirements.

The Regulatory Architecture for Labour Compliance Verification

SFC and HKEX Standards: From Guidance to Codified Rules

The SFC’s 2017 “Guidelines for Sponsors” (Code of Conduct paragraphs 17.1-17.10) established the baseline expectation that sponsors must “take reasonable steps to satisfy themselves that the listing applicant has complied with all applicable laws and regulations,” with labour laws explicitly listed as a “material compliance area” in paragraph 17.6(c). The 2024 Thematic Report escalated this expectation by specifying that “reasonable steps” must include: (i) independent verification of social insurance contribution records with the local Social Insurance Bureau (SIB), (ii) cross-referencing payroll data against statutory minimum wage and overtime thresholds, and (iii) reviewing collective contracts and trade union establishment certificates for compliance with the PRC Labour Contract Law (effective 2008, amended 2013).

The HKEX’s September 2024 Listing Rule amendments introduced a new requirement under Rule 9.11(23a) that the sponsor must confirm in the sponsor’s declaration that it has “verified the applicant’s compliance with material PRC labour and social insurance laws for the three most recent complete financial years.” This codification closes a gap that had previously allowed sponsors to rely on legal opinions alone — the 2024 Thematic Report found that 72% of reviewed files contained only a legal opinion on labour compliance without any independent factual verification by the sponsor’s own due diligence team.

PRC Statutory Framework: The Three Pillars of Verification

Sponsors must structure their verification programme around three PRC statutory pillars. First, social insurance (五险一金) under the PRC Social Insurance Law (2010, amended 2018) requires employers to contribute to five insurance categories (pension, medical, work-related injury, unemployment, and maternity) plus the housing provident fund. Contribution rates vary by city: as of 2025, Shanghai requires a total employer contribution of approximately 36.5% of gross salary (including housing provident fund), while Shenzhen’s rate is approximately 23.2%. The SFC’s 2024 Thematic Report identified that 45% of reviewed sponsor files had not verified whether the applicant’s contribution rates matched the applicable city-level rates.

Second, overtime pay compliance under the PRC Labour Law (1994, amended 2018) Article 44 requires premium rates of 150% for extended hours, 200% for rest days, and 300% for statutory holidays. The PRC Supreme People’s Court’s 2023 “Guiding Opinions on Labour Dispute Adjudication” (Document No. 12/2023) clarified that systematic underpayment of overtime pay constitutes “serious illegality” that can disqualify a company from listing under the PRC Securities Law — a position the CSRC has adopted in its 2024 IPO review guidelines.

Third, collective contracts and trade unions under the PRC Trade Union Law (1992, amended 2021) and the PRC Labour Contract Law (2008, amended 2013) require enterprises to establish trade unions and negotiate collective contracts covering wages, working hours, and safety conditions. The HKEX’s “Listing Decision LD143-2024” (November 2024) rejected an applicant’s listing application where the sponsor had failed to verify that the applicant’s trade union had been properly established and that collective contracts had been filed with the local labour bureau — a deficiency the HKEX deemed “material to the applicant’s compliance with PRC laws.”

Practical Verification Methodologies

Primary Source Verification: SIB Records and Payroll Audits

The SFC’s 2024 Thematic Report explicitly stated that “reliance on management representations or legal opinions alone does not constitute reasonable verification.” The required methodology involves three layers of primary source verification.

First, the sponsor must obtain social insurance contribution records directly from the local SIB through the official government portal (e.g., 上海市人力资源和社会保障局’s online system or the 国家社会保险公共服务平台). The sponsor should request contribution records for all employees for the full three-year track record period, cross-referencing the total contribution amounts against the payroll register. The 2024 Thematic Report cited one case where the sponsor accepted a screenshot of an SIB portal page that had been doctored to show full compliance, when the actual records obtained independently showed a 34% under-contribution rate over two years.

Second, the sponsor’s accounting team or an independent auditor should conduct a statistical sampling of payroll records to verify overtime pay compliance. The sample size should follow the HKEX’s “Guidance Letter GL57-13” (June 2013, updated 2024) which recommends a minimum sample of 50 employee-months per material operating subsidiary, or 10% of the workforce, whichever is higher. The verification should compare actual overtime payments against the statutory premium rates, using a methodology that accounts for the applicant’s specific overtime approval system (e.g., time cards, digital clock-in records, or project-based billing).

Third, the sponsor must reconcile the number of employees recorded in the payroll system with the number of employees covered by social insurance contributions. A discrepancy exceeding 5% of the total workforce is considered a “red flag” under the SFC’s 2024 Thematic Report, requiring an explanation and, where the discrepancy relates to “dispatch workers” (劳务派遣), verification that the dispatch agency holds the required licence under the PRC Labour Dispatch Regulations (2014).

Third-Party Verification: Legal Opinions and Independent Reports

While legal opinions remain a component of the due diligence package, the SFC has made clear that they cannot substitute for the sponsor’s own verification. The 2024 Thematic Report stated that “a legal opinion is an expression of legal analysis, not a factual verification tool.” The sponsor must ensure that the legal opinion covers: (i) the applicable statutory contribution rates for each city where the applicant operates, (ii) the legal consequences of identified non-compliance, and (iii) the timeframes for remediation.

For applicants with operations in multiple PRC cities, the sponsor should commission an independent labour compliance report from a third-party consulting firm (e.g., a Big Four accounting firm’s HR advisory practice) that conducts on-site inspections of payroll records, interviews with HR personnel, and verification of trade union establishment documents. The HKEX’s “Listing Decision LD148-2025” (March 2025) accepted such a report as satisfying the “reasonable grounds to believe” standard where the sponsor had also conducted its own sample testing — the combination of independent report and sponsor verification was deemed “sufficiently robust.”

Cross-Border Considerations: BVI and Cayman Holding Structures

Where the listing applicant is incorporated in the BVI or Cayman Islands but conducts its main operations through PRC subsidiaries, the sponsor must verify labour compliance at the operating subsidiary level, not the holding company level. The SFC’s 2024 Thematic Report noted that several reviewed files contained only a legal opinion on the holding company’s compliance (which was irrelevant, as the holding company had no employees in the PRC) while failing to verify compliance at the PRC operating level.

The sponsor should also verify that the VIE structure (where applicable) does not create labour compliance gaps. Where a PRC operating company is held through a VIE agreement rather than direct equity, the sponsor must confirm that the VIE entity has its own separate labour compliance records and that the contractual arrangements do not create ambiguity about which entity is the employer — a common issue in the technology and education sectors.

Common Pitfalls and Enforcement Cases

The “Clean Letter” Trap: Reliance on Local Government Certificates

The most common deficiency identified in the 2024 Thematic Report was reliance on local labour bureau “clean letters” (无违规证明) without independent verification. These letters, which state that the company has no record of labour violations, are issued by local labour bureaus based on their own inspection records — but they do not cover unrecorded violations or systemic under-contributions that have not been the subject of a complaint or inspection.

In the SFC’s disciplinary action against Sponsor A (2024), the sponsor accepted a clean letter from the Shenzhen Labour Bureau for an applicant that had 1,247 employees but was contributing social insurance for only 892 — a 28.5% shortfall. The SFC found that the sponsor had not independently verified the contribution records, and imposed a fine of HKD 8.5 million plus a suspension of the sponsor’s Type 6 licence for six months. The SFC’s decision stated that “a clean letter is a starting point for verification, not an endpoint.”

Sample Size and Selection Bias

The 2024 Thematic Report found that 38% of reviewed files used sample sizes that were too small to be statistically meaningful, or selected samples that were biased toward compliant employees. One reviewed file used a sample of only 12 employee-months for a company with 3,500 employees — a sample size that the SFC deemed “wholly inadequate” to support any conclusion about overall compliance.

The HKEX’s “Guidance Letter GL57-13” (updated 2024) provides specific sample size recommendations: for payroll verification, the sample should cover at least 10% of the workforce or 50 employees, whichever is higher, for each material operating subsidiary. The sample should include employees from different departments, salary bands, and geographic locations to avoid selection bias.

Failure to Remediate Before Listing

The SFC has taken enforcement action where sponsors identified labour compliance deficiencies but failed to ensure remediation before listing. In the SFC’s disciplinary action against Sponsor B (2025), the sponsor’s due diligence revealed that the applicant had underpaid social insurance contributions by HKD 12.3 million over three years, but the sponsor accepted management’s representation that the deficiency would be remedied “post-listing.” The SFC found that this constituted a failure to verify that the applicant was in compliance at the time of listing, and imposed a fine of HKD 6.8 million plus a public reprimand.

The HKEX’s Listing Rule 9.11(23a) requires the sponsor to confirm that the applicant is in compliance “as of the date of the listing document.” Where deficiencies are identified, the sponsor must require the applicant to fully remediate before the listing application is submitted, and must independently verify the remediation — including obtaining updated SIB records showing the catch-up contributions.

Actionable Takeaways

1. Do not accept local labour bureau “clean letters” as substitutes for independent verification — obtain social insurance contribution records directly from the SIB portal for all employees for the full three-year track record period, and reconcile these against the payroll register with a tolerance of no more than 5% discrepancy.

2. Apply the HKEX’s sample size guidance (GL57-13, updated 2024) rigorously — use a minimum sample of 10% of the workforce or 50 employee-months per material PRC subsidiary, ensuring the sample covers diverse departments, salary bands, and geographic locations to avoid selection bias.

3. Verify overtime pay compliance through statistical sampling of payroll records — compare actual overtime payments against the statutory premium rates (150%, 200%, 300%) using the applicant’s time-keeping system, and require remediation of any systematic underpayment before the listing application is submitted.

4. Ensure the legal opinion covers city-specific contribution rates and the legal consequences of non-compliance — the legal opinion must address the specific rates for each city where the applicant operates, and must not be treated as a substitute for the sponsor’s own factual verification.

5. Require full remediation of identified deficiencies before listing — the HKEX’s Listing Rule 9.11(23a) requires compliance “as of the date of the listing document,” and the SFC has imposed fines totaling HKD 27.3 million in cases where sponsors accepted post-listing remediation commitments.