A Sponsor's Due Diligence on Modern Slavery and Human Trafficking Risks for the Listing Applicant

The Hong Kong Stock Exchange’s (HKEX) 2025 update to its ESG reporting framework, mandating enhanced supply chain due diligence disclosures under Listing Rules Chapter 13 and Appendix C2, has placed modern slavery and human trafficking risks squarely on the sponsor’s work programme. This is not a theoretical compliance exercise. The HKEX’s 2024 consultation conclusions on climate and social disclosures, combined with the Hong Kong government’s 2023 announcement of a dedicated task force to combat human trafficking within the logistics and construction sectors, signal a definitive shift from voluntary reporting to enforceable obligations. For a sponsor executing a Main Board listing application under the Listing Rules, the failure to identify and document a listing applicant’s exposure to forced labour, debt bondage, or child labour in its supply chain now carries direct regulatory consequences: a deficient sponsor’s statement under Practice Note 21, potential suspension of the sponsor’s licence under the Securities and Futures Ordinance (SFO) section 213, and reputational damage that can derail the transaction. The sponsor’s due diligence must move beyond a generic questionnaire and into a forensic, data-driven assessment of the applicant’s operational footprint, sourcing jurisdictions, and contractual controls.

The Regulatory Mandate: From Soft Guidance to Hard Obligation

The legal basis for a sponsor’s duty to investigate modern slavery risks is not found in a single, dedicated Hong Kong ordinance, but rather in the cumulative application of the SFC’s Code of Conduct for Persons Licensed by or Registered with the Securities and Futures Commission (the Code), the HKEX’s Listing Rules, and the evolving international standards that Hong Kong regulators increasingly cite in their guidance.

The SFC Code of Conduct and Sponsor’s Core Duty

Paragraph 17 of the Code, read in conjunction with the SFC’s 2022 “Guidance Note on Due Diligence for Sponsors,” establishes that a sponsor must exercise reasonable due diligence to ensure that all material information contained in the listing document is true, accurate, and complete. The definition of “material information” has expanded. In the 2024 HKEX consultation paper on ESG disclosures, the Exchange explicitly stated that supply chain labour practices, including risks of forced labour, could constitute material information for investors assessing an applicant’s operational resilience and legal compliance. The sponsor cannot delegate this duty to the applicant’s internal audit team or an external consultant without retaining oversight and accountability. The sponsor must independently verify the applicant’s assertions regarding its supply chain labour standards, which requires a structured, documented process.

The HKEX Listing Rules and the “Fit and Proper” Standard

Listing Rule 3.04 requires a listing applicant to be “fit and proper” for listing. The HKEX’s 2023 guidance on the “fit and proper” test, particularly for companies in high-risk sectors such as garments, electronics, construction, and food processing, now explicitly considers the applicant’s adherence to international labour standards. The Exchange has access to databases from the International Labour Organization (ILO) and the U.S. Department of Labor’s List of Goods Produced by Child Labor or Forced Labor. A sponsor that fails to identify that an applicant’s key supplier in a jurisdiction such as Myanmar, Bangladesh, or the PRC’s Xinjiang Uyghur Autonomous Region is named on these lists will have failed its due diligence obligations. The consequence is not merely a deficiency letter; it can be a formal refusal to list or a referral to the SFC’s Enforcement Division.

Structuring the Due Diligence Programme: A Sponsor’s Operational Blueprint

The sponsor’s work programme must be tailored to the applicant’s specific industry, geographic footprint, and supply chain complexity. A one-size-fits-all approach is inadequate. The following framework, based on the SFC’s 2022 Guidance Note and the HKEX’s 2025 ESG reporting requirements, provides a replicable structure.

Phase One: Risk Mapping and Jurisdictional Analysis

The sponsor must first map the applicant’s entire supply chain, from raw material sourcing to final assembly, identifying all direct and indirect suppliers. This mapping must be granular: the sponsor needs the legal name, jurisdiction of incorporation, and operational address of each supplier. For suppliers located in jurisdictions with known modern slavery risks—as identified by the ILO’s Global Estimates of Modern Slavery (2022) and the U.S. Department of State’s Trafficking in Persons (TIP) Report (2024)—the sponsor must apply enhanced due diligence. The TIP Report for 2024 placed 23 countries on Tier 2 Watch List or below, including the PRC, which remains on Tier 2 Watch List for the third consecutive year. The sponsor must document the rationale for accepting a supplier from a Tier 2 Watch List jurisdiction, including the applicant’s specific contractual controls and audit history.

Phase Two: Contractual and Audit Verification

The sponsor must review the applicant’s standard supplier contracts to confirm the inclusion of enforceable clauses prohibiting forced labour, child labour, and human trafficking. These clauses must be consistent with the ILO’s core conventions (C29, C105, C138, C182). The sponsor must then verify that the applicant has a documented audit programme for its high-risk suppliers. The audit programme must include unannounced site visits, worker interviews conducted in private, and a review of payroll records, working hours, and accommodation conditions. The sponsor should request the last three years of audit reports for the top 10 suppliers by volume (or, if the applicant has fewer than 10 suppliers, for all suppliers). The sponsor must assess the audit reports for credibility: are the audits conducted by a reputable, accredited third party (e.g., SGS, Bureau Veritas, or a member of the Social Accountability Accreditation Services)? Are the audit findings closed within a reasonable timeframe (typically 90 days)? The sponsor must document its assessment in the due diligence work papers.

Phase Three: Worker Voice and Grievance Mechanisms

A critical gap in many sponsors’ due diligence programmes is the failure to verify the existence and effectiveness of worker grievance mechanisms. The SFC’s 2022 Guidance Note implicitly requires this under the “reasonableness” standard. The sponsor must confirm that the applicant and its key suppliers have a confidential, anonymous, and accessible grievance mechanism for workers to report labour violations without fear of retaliation. This mechanism must be available in the workers’ native languages. The sponsor should request evidence of the number of grievances filed in the past 24 months, the nature of those grievances, and the applicant’s response. A complete absence of grievances, particularly in a high-risk supply chain, is itself a red flag that warrants further investigation.

Cross-Border Legal Exposure and Enforcement Risks

The sponsor must also assess the applicant’s legal exposure to modern slavery-related legislation in its key export markets. This is not a Hong Kong-specific issue, but it directly affects the applicant’s financial position and, therefore, the sponsor’s duty to disclose material risks.

The Australian and UK Modern Slavery Acts

If the applicant has a turnover exceeding AUD 100 million in Australia or GBP 36 million in the UK, it is subject to mandatory reporting requirements under the Australian Modern Slavery Act 2018 and the UK Modern Slavery Act 2015. The sponsor must verify that the applicant has filed the required annual statements and that those statements are consistent with the information in the listing document. A failure to comply with these Acts can result in civil penalties, reputational damage, and exclusion from public procurement contracts. The sponsor must also assess whether the applicant’s disclosures under these Acts are sufficiently robust. A generic statement that “we do not tolerate modern slavery” without specific data on supplier audits, risk assessments, and remediation actions is a compliance failure.

The U.S. Uyghur Forced Labor Prevention Act (UFLPA)

For applicants with supply chains touching the PRC, the UFLPA, enacted in 2022, creates a presumption of forced labour for goods wholly or partly produced in the Xinjiang Uyghur Autonomous Region. The U.S. Customs and Border Protection (CBP) has issued over 300 Withhold Release Orders (WROs) and enforcement actions under the UFLPA as of Q1 2025. The sponsor must conduct a forensic supply chain traceability exercise for any applicant with exposure to Xinjiang. This includes verifying the origin of cotton, polysilicon, tomatoes, and other commodities subject to UFLPA enforcement. The sponsor must document the applicant’s efforts to trace its supply chain to the farm or mine level, including the use of blockchain or other verifiable traceability technology. A failure to do so exposes the applicant to the risk of seizure of goods at the U.S. border, which is a material financial risk that must be disclosed in the listing document.

Practical Implementation for the Sponsor’s Team

The sponsor’s compliance team must integrate modern slavery due diligence into the standard IPO work programme from the outset, not as a last-minute addition.

Resource Allocation and Specialist Engagement

The sponsor should allocate a dedicated team member, typically a compliance officer or a senior associate with experience in ESG due diligence, to oversee the modern slavery workstream. For applicants in high-risk sectors (garments, electronics, construction, food processing, or mining), the sponsor should consider engaging a specialist consultant with expertise in supply chain labour auditing. The cost of this engagement, typically between HKD 200,000 and HKD 500,000 for a mid-cap applicant, is a justifiable expense against the risk of a regulatory deficiency. The sponsor must retain the consultant’s report and the sponsor’s own analysis in the working papers.

Documentation and the Sponsor’s Statement

The sponsor must document every step of its due diligence, including the risk mapping, contract review, audit verification, and grievance mechanism assessment. The work papers should include a clear rationale for any acceptance of risk, such as a supplier in a Tier 2 Watch List jurisdiction with a robust, independently verified audit programme. The sponsor’s statement in the listing document must include a specific paragraph on modern slavery due diligence, confirming that the sponsor has conducted reasonable inquiries and that, to the best of its knowledge, the applicant’s supply chain is free from forced labour and human trafficking. This statement must be supported by the documented work programme.

Closing Actionable Takeaways

1. Integrate modern slavery due diligence into the sponsor’s standard work programme from the initial kick-off meeting, not as a last-minute ESG add-on, to avoid a deficiency letter from the HKEX under Listing Rule 3.04.
2. Conduct a jurisdictional risk assessment for every direct and indirect supplier, using the ILO’s Global Estimates and the U.S. TIP Report as primary reference sources, and document the rationale for accepting any supplier from a Tier 2 Watch List jurisdiction.
3. Verify the applicant’s compliance with the Australian and UK Modern Slavery Acts, if applicable, and confirm that the applicant’s annual statements are consistent with the information in the listing document.
4. For any applicant with supply chain exposure to the PRC’s Xinjiang Uyghur Autonomous Region, conduct a forensic traceability exercise to the farm or mine level and document the applicant’s compliance with the U.S. Uyghur Forced Labor Prevention Act.
5. Retain all work papers, including third-party audit reports and consultant assessments, for a minimum of seven years after the listing, as the SFC’s Enforcement Division can request these documents during a routine inspection or a specific investigation under SFO section 213.