Key Takeaways

• ESG reporting is mandatory for HKEX-listed companies under Appendix C2.
• Climate-related disclosures aligned with TCFD will be required from FY2025.
• Key disclosures include board oversight, materiality, ESG governance, and stakeholder engagement.
• Voluntary frameworks like GRI, SASB, and IFRS S2 strengthen global credibility.
• Mandrill supports ESG success through automated data systems, compliance tools, and TCFD-aligned reporting.

Introduction

Environmental, Social, and Governance (ESG) reporting has quickly become a top priority for companies listed on the Hong Kong Stock Exchange (HKEX). 

As regulatory expectations evolve and the global spotlight on sustainable business practices intensifies, Hong Kong has positioned itself as a regional leader in promoting responsible corporate conduct.

HKEX’s ESG framework places strong emphasis on climate risk management, board-level accountability, and transparent stakeholder communication. 

These reporting obligations are not only regulatory checkboxes, they are now central to how companies demonstrate long-term value, resilience, and ethical governance.

This guide serves as a practical resource for Hong Kong-listed businesses navigating ESG disclosures. 

Whether you’re responding to mandatory reporting under HKEX Listing Rules or looking to elevate your sustainability credentials, this article outlines the key requirements, global frameworks, reporting timelines, and strategic steps to help your organisation stay ahead.

What is ESG Reporting?

ESG reporting is the process through which companies disclose their environmental impact, social responsibilities, and governance practices, offering a comprehensive view of how they operate beyond financial performance. 

For businesses listed on the HKEX, it’s no longer a matter of “why” but “how well” ESG practices are disclosed.

Traditionally, financial reports were the benchmark for assessing corporate performance. Today, stakeholders demand more. Investors, regulators, and the public want transparency around how companies manage risks related to climate change, employee welfare, ethical governance, and supply chain sustainability.

By embracing ESG reporting, companies can better align with international best practices, identify operational inefficiencies, and position themselves as forward-looking enterprises committed to long-term resilience. 

In Hong Kong’s competitive and increasingly sustainability-focused market, strong ESG reporting is becoming a differentiator, not just a duty.

Also read: ESG Reporting: What Is It, Guides, & Frameworks

Key Components of an ESG Report in Hong Kong

A well-rounded ESG report provides stakeholders with insights into how a company operates responsibly across three fundamental pillars:

Environmental (E)

Disclosures under this pillar reflect how an organisation manages its environmental footprint. 

Common metrics include carbon emissions, energy consumption, water usage, waste reduction efforts, and strategies for mitigating climate-related risks, especially important given HKEX’s climate disclosure push and Hong Kong’s net-zero roadmap.

Social (S)

This aspect focuses on the company’s impact on people, employees, communities, and broader society. Reporting covers workforce diversity, occupational health and safety, employee engagement, labour rights within the supply chain, and corporate social responsibility initiatives.

Governance (G)

Governance reporting outlines the systems that promote transparency, accountability, and ethical conduct. 

It includes details on board oversight of ESG, executive compensation, anti-corruption policies, internal controls, and shareholder rights, which are key areas of focus in the HKEX’s ESG Code and TCFD-aligned expectations.

Why ESG Reporting Matters in Hong Kong?

Hong Kong is rapidly positioning itself as a leading green finance hub in Asia, and ESG reporting is at the core of this transformation. 

For companies listed on the Hong Kong Stock Exchange (HKEX), ESG disclosure is more than a regulatory formality. It is a strategic necessity.

1. HKEX ESG Code & Listing Rule Obligations

Under Appendix C2 of the HKEX Listing Rules, all listed companies must disclose ESG information in alignment with the ESG Reporting Guide. 

With recent enhancements, ESG has become a board-level responsibility, requiring transparency in how companies manage material ESG risks and opportunities. 

Climate-related disclosures are now mandatory for all issuers from FY2025 onwards, which is a strong move toward aligning with the TCFD framework.

2. Investor & Global Market Expectations

Institutional investors, especially those aligned with global sustainable investment standards, increasingly demand consistent, decision-useful ESG data. 

Strong ESG reporting practices not only satisfy these demands but also enhance a company’s credibility, valuation potential, and access to capital markets.

3. Climate Risk & Hong Kong’s Green Finance Push

The Hong Kong Monetary Authority (HKMA) and Securities and Futures Commission (SFC) have both launched strategic initiatives to build a green and sustainable finance ecosystem. 

ESG reporting is foundational to this roadmap, especially in assessing and disclosing climate risks that could affect business continuity and financial performance.

4. Enhancing Corporate Accountability in Asia

HKEX is at the forefront of integrating ESG into capital markets governance in Asia. By strengthening ESG reporting obligations, it encourages companies to embed sustainability into business strategy, improve stakeholder engagement, and drive long-term corporate resilience.

HKEX ESG Reporting Requirements

Hong Kong-listed companies are subject to one of the most well-defined ESG regulatory frameworks in Asia. 

HKEX’s ESG Reporting Guide, set out in Appendix C2 of the Listing Rules, combines mandatory obligations with “comply or explain” provisions, providing structure while allowing flexibility. 

Here’s a breakdown of the key components:

Mandatory Disclosure Requirements

The following elements are compulsory for all issuers:

• Board Oversight of ESG Issues: Companies must disclose the board’s role in overseeing ESG matters, including the formulation of ESG strategy, risk management, and performance evaluation.
• Materiality Assessment Process: A description of the processes used to determine material ESG factors is required. This ensures the report addresses issues most relevant to the business and its stakeholders.
• Governance and Decision-Making: Companies must outline how ESG decisions are made and implemented across the organisation, highlighting management’s involvement.
• Reporting Boundaries: Clear identification of what operations, geographies, or entities are included in the ESG report to ensure comparability and transparency.

“Comply or Explain” Provisions

For other disclosures, companies may either comply or explain why a certain item has not been reported. These include:

• Environmental KPIs such as emissions, energy consumption, water usage, and waste disposal.
• Social KPIs covering employee development, diversity, occupational health and safety, labour standards, and community investment.
• Supply Chain Management policies and practices, especially concerning environmental and social risk.
• Anti-Corruption Measures, including training and whistleblower policies.
• Product Responsibility disclosures regarding product safety, quality assurance, and data privacy.

Climate-Related Disclosures (TCFD-Aligned)

HKEX is mandating climate disclosures aligned with the Task Force on Climate-related Financial Disclosures (TCFD) framework by FY2025 for all listed companies. This includes:

• Governance: Board and management roles in climate oversight.
• Strategy: Climate-related risks and opportunities affecting business.
• Risk Management: How climate issues are integrated into enterprise risk management.
• Metrics & Targets: Quantitative data, such as carbon emissions, targets, and transition plans.

Annual Reporting Timeline & Language

• ESG reports must be published annually, no later than five months after the financial year-end.
• Reports should be made available in English and/or Chinese, depending on the company’s disclosure norms.

Voluntary Frameworks Commonly Used in HK

To strengthen comparability and global recognition, many companies supplement HKEX reporting with the following standards:

• TCFD – now mandatory for climate reporting.
• GRI (Global Reporting Initiative) – for general ESG disclosures.
• SASB (Sustainability Accounting Standards Board) – industry-specific metrics.
• ISSB / IFRS S1 & S2 – global baseline for sustainability disclosures (future alignment expected).
• UN SDGs – for mapping broader ESG efforts to global goals.

Steps to Prepare for ESG Reporting in Hong Kong

Building a credible ESG report under HKEX requirements involves more than regulatory compliance. It demands cross-functional coordination, robust governance, and transparent communication. 

Here’s a step-by-step approach to help Hong Kong-listed companies navigate the process:

1. Conduct a Materiality Assessment: Start by identifying which ESG issues matter most to your business and stakeholders. Use surveys, stakeholder interviews, peer benchmarking, and risk assessments to map environmental, social, and governance topics according to their significance and impact. 

This process is not just required under HKEX’s mandatory disclosures, but also ensures your report focuses on high-impact areas.

2. Establish Board and Governance Structures: Define clear oversight responsibilities. ESG governance should be led by the board and supported by executive leadership, with defined roles for ESG data owners and operational teams. Formalising this structure shows accountability and strategic integration.

3. Set ESG KPIs and Targets: Develop measurable ESG key performance indicators (KPIs) tailored to your industry and stakeholder expectations. Set short- and long-term targets, such as emission reduction goals, diversity ratios, or community investment benchmarks.

KPIs must align with HKEX’s “comply or explain” provisions and should ideally reference recognised international standards for comparability.

4. Implement Data Collection & Validation Processes: Set up internal systems to collect ESG data across departments—HR, operations, supply chain, finance, and compliance. Apply data validation checks, assign clear ownership, and ensure traceability for audit purposes.

5. Integrate ESG into Corporate Strategy: Treat ESG as part of your core business strategy, not an isolated reporting task. Link ESG goals to business objectives such as risk management, innovation, and long-term value creation. This alignment strengthens stakeholder trust and market positioning.

6. Prepare the ESG Report (Quantitative + Qualitative): Combine narrative and data to create a cohesive ESG report. Disclose policies, performance metrics, risk mitigation plans, and strategic initiatives. Follow HKEX formatting requirements and consider layering in global frameworks like TCFD or GRI where applicable.

7. Engage Stakeholders and Communicate Transparently: Go beyond compliance. Communicate ESG commitments through annual reports, websites, investor presentations, and stakeholder dialogues. This transparency not only meets expectations but reinforces your reputation as a responsible, forward-looking business.

Common Challenges in ESG Reporting for HK Companies

Despite clear frameworks from the Hong Kong Stock Exchange (HKEX), many companies still face practical and strategic hurdles in implementing effective ESG reporting. 

Below are common issues and how they can be addressed:

• Navigating frequent HKEX updates and evolving ESG disclosure requirements.
• Balancing local HKEX rules with global frameworks like TCFD and GRI.
• Fragmented ESG data across departments and business units.
• Lack of internal ESG expertise and dedicated reporting resources.
• Rising stakeholder scepticism and greenwashing accusations.
• Difficulty in integrating ESG metrics into core business strategy.
• Unclear materiality prioritisation across diverse stakeholder groups.
• Limited automation in ESG data collection and validation.

How Mandrill Supports ESG Reporting in Hong Kong?

At Mandrill, we support Hong Kong-listed companies in turning ESG compliance into a strategic lever for transparency, investor confidence, and sustainable growth.

• Data Integration and Automation: We streamline ESG data collection across departments and supply chains, ensuring data consistency, audit readiness, and significant time savings. Check out our ESG reporting solutions here!
• Centralised ESG Reporting Platform: Our Lestar ESG platform empowers companies to manage, analyse, and report ESG data efficiently. It’s designed to comply with HKEX disclosure requirements and aligns with global frameworks such as TCFD, GRI, SASB, and ISSB.
• Compliance and Standards Alignment: From mandatory HKEX disclosures and TCFD-aligned climate reporting (FY2025 onward) to voluntary frameworks like UN SDGs, we help you meet local expectations while harmonising with international ESG standards.
• End-to-End ESG Support: Whether you’re building your ESG strategy from scratch or enhancing existing processes, our team offers full-cycle support—from materiality assessments and KPI setup to automation, visual reporting, and stakeholder communications.
  Also explore how our AI & analytics services and business intelligence solutions provide comprehensive support.

Read: ESG Reporting Software: Convenience in Sustainable KPI Tracking

Conclusion

As ESG reporting continues to evolve into a critical pillar of corporate accountability in Hong Kong, businesses listed on the HKEX must adopt a proactive and transparent approach. 

Meeting disclosure requirements is no longer just about compliance. It’s about building long-term trust, attracting sustainable investment, and demonstrating leadership in a fast-changing ESG landscape.

With climate-related disclosures becoming mandatory from FY2025 and increasing stakeholder scrutiny, companies must act now to establish credible ESG systems and governance structures.

Need help streamlining your ESG disclosures? Contact Mandrill today to simplify HKEX ESG reporting, ensure compliance, and strengthen your sustainability strategy.