Key Takeaways:
- Board oversight helps keep ESG responsibilities clear, coordinated, and accountable across the organisation.
- Strong ESG governance gives stakeholders greater confidence that sustainability claims are supported by evidence, controls, and senior-level review.
- The board should set ESG priorities, approve measurable objectives, and ensure sustainability goals align with business strategy and long-term value.
- Effective ESG oversight requires the board to review materiality, challenge assumptions, and integrate ESG risks into broader risk management.
What Is ESG Reporting?
ESG reporting is the process of disclosing how a business manages and reports its environmental, social and governance performance. It may cover areas such as climate impact, resource use, employee welfare, supply chain practices, business ethics, board oversight and internal controls. A well-prepared ESG sustainability report helps stakeholders understand not only what a company claims, but also how those claims are supported by policies, data and governance processes.
In Singapore, ESG reporting includes both mandatory and voluntary elements. Listed issuers are already subject to sustainability reporting requirements, while climate-related disclosure expectations are expanding for listed and large non-listed companies under Singapore’s sustainability reporting roadmap. At the same time, many businesses also report voluntarily to meet investor, lender, customer or supply-chain expectations.
Globally, sustainability reporting has become mainstream. KPMG’s 2024 global survey reported that 96% of the world’s 250 largest companies publish sustainability reports, showing how common ESG disclosure has become among major businesses. For boards, this makes ESG reporting more than a communications exercise. It is a governance responsibility that requires clear accountability, credible evidence and senior-level review.
Why Board Oversight Matters in ESG
Board oversight matters because ESG decisions can affect strategy, risk, reputation, capital access, and stakeholder trust. Without clear direction from the top, ESG responsibilities may become fragmented across departments, making it harder to manage risks or produce consistent disclosures.
Effective monitoring helps ensure that sustainability is treated as a business priority rather than a delegated reporting task. It also gives management a clearer framework for decision-making, reporting, and accountability. To achieve these critical outcomes, the board’s role must translate into three core, defined responsibilities.
1. Strengthening Accountability at the Top
When the board takes ownership of ESG, it places sustainability firmly within the organisation’s strategic priorities. This tone from the top matters because it helps establish clear ownership for ESG risks, opportunities and outcomes across the organisation.
Management teams are more likely to treat ESG seriously when they know the board is reviewing progress, asking questions and expecting evidence-based updates. Board involvement also strengthens internal discipline by encouraging clearer records, stronger reporting processes and more consistent review.
Framework selection is also part of this accountability. A 2023 study by NUS Business School’s Centre for Governance and Sustainability and SGX RegCo found that GRI was the most widely adopted sustainability reporting framework among Singapore issuers, followed by TCFD and the UN SDGs. This reinforces the need for boards to understand which frameworks management is using and whether disclosures remain relevant, consistent and properly supported.
2. Enhancing Stakeholder Confidence
Stakeholders want to know that sustainability statements are not selective, exaggerated or disconnected from actual business practices. Investors and regulators look for evidence of active board involvement, especially as sustainability disclosures become more detailed and decision-useful.
Clear board oversight builds confidence by demonstrating that ESG matters have been reviewed at a senior level. It also reduces the risk of greenwashing perceptions by ensuring claims are supported by governance, controls and evidence.
In Singapore, SGX sustainability reporting requirements include material ESG factors and climate-related disclosure. These require organisations to explain how relevant issues are managed and reported. Boards that engage actively with these disclosures are better positioned to uphold trust.
Core Responsibilities of the Board in ESG Oversight
The board’s role is to set direction, challenge assumptions, and monitor progress. It is also important for the board to ensure that ESG matters are properly integrated into governance and risk management.
1. Setting ESG Direction and Expectations
The board should approve ESG priorities that align with the organisation’s business strategy, risk profile and long-term value creation. This helps prevent ESG efforts from becoming scattered, symbolic or disconnected from wider business decisions.
In Singapore, the regulatory direction has become more defined over time. SGX introduced sustainability reporting on a comply-or-explain basis in 2016. Climate-related disclosures were then made mandatory for selected sectors from 2022, aligned with TCFD recommendations. In 2024, Singapore set out its ISSB-aligned roadmap, with phased requirements expected across FY2025 to FY2026.
This timeline makes board direction increasingly important. Clear expectations should cover which ESG issues are material, what data needs to be collected, who owns each area and how progress will be reviewed. When ESG goals are connected to strategy, they become more practical, measurable and useful for decision-making.
2. Oversight of Risk and Materiality
Materiality is essential in ESG reporting because it helps organisations identify which sustainability matters are most relevant to their business and stakeholders. The board should review and challenge ESG materiality assessments rather than accepting them as a formality.
This means asking whether the assessment reflects actual impacts, emerging risks, stakeholder expectations and sector-specific concerns. It also involves ensuring that ESG risks are integrated into enterprise risk management.
For instance, climate-related risks may affect supply chains, operating costs, asset values, insurance or regulatory compliance. Meanwhile, social risks may affect workforce stability, customer trust or supplier relationships. Board oversight allows these risks to be seen in their wider business context.
3. Monitoring Performance and Reporting
Boards should review ESG performance indicators and progress against targets. This includes understanding whether the data is complete, consistent and comparable over time.
Monitoring also involves reviewing the accuracy of sustainability disclosures. Singapore’s climate-first sustainability reporting roadmap includes phased requirements for listed companies and large non-listed companies. Implementation timelines should be regularly reviewed to support capability development.
As expectations become more sophisticated, boards need to ensure that reporting remains accurate, transparent and aligned with recognised frameworks. Through a strong internal documentation process, boards should be able to trace how ESG figures, statements, targets and claims are prepared and approved.
Governance Structures That Support Effective Oversight
Effective ESG governance depends on structure. Even when the board is committed, oversight may weaken if roles are unclear, reporting lines are inconsistent, or ESG information is not properly controlled.
1. Board and Committee Arrangements
Some organisations allocate ESG oversight to the full board, while others assign specific responsibilities to a board committee. There is no single structure that suits every company. KPMG Singapore has noted that boards may need to decide whether ESG matters sit with the audit committee, a standalone ESG committee or another governance structure, depending on the company’s size, complexity and risk profile.
Clear mandates should define ESG roles, reporting frequency, escalation pathways and decision-making responsibilities. A 2023 review also found that many SGX-listed REITs had already established board sustainability committees, reflecting how some issuers are formalising oversight structures.
Board composition also matters. SGX’s FY2025 board diversity policy requirement reinforces the importance of documented diversity policies, measurable objectives and progress reporting. For ESG oversight, this can support broader perspectives and more informed challenge at board level.
2. Management Accountability and Controls
The board cannot provide effective oversight if management ownership is unclear. Businesses need defined responsibility for ESG data, initiatives, reporting and controls.
Sustainability disclosures often rely on data from multiple departments, sites and systems. Clear records of ESG decisions, data sources, calculation methods, approvals, assumptions and management reviews allow boards to assess whether disclosures are properly supported by evidence.
What are the Common Challenges Boards Face?
The ESG environment is broad, technical, and constantly evolving. This tends to make board oversight more challenging. By understanding where these difficulties arise, boards can strengthen their approach before gaps affect reporting, governance, or accountability.
1. Capability and Information Gaps
Not all directors have the same level of ESG expertise. Some may be more familiar with financial reporting, risk or governance, while others may have deeper knowledge of sustainability, climate or social impact matters. This can make it difficult for boards to challenge ESG assumptions, data quality or reporting judgments effectively.
Global data shows that board structures are evolving, but capability gaps remain. NYU Stern research on Fortune 100 companies found that the number of companies with ESG committees increased from 22 in 2018 to 89, yet only 43% of directors had relevant ESG expertise. While this is a global comparator rather than Singapore-specific data, it highlights a wider challenge for boards dealing with increasingly technical ESG responsibilities.
There is also a risk of fragmented oversight. KPMG International has described “committee fatigue” as a concern when responsibilities are spread across multiple board committees without clear coordination. To address this, boards may need training, external briefings and clearer reporting packs so they can assess both ESG performance and reporting readiness with confidence.
2. Fragmented Oversight
ESG responsibilities can become fragmented when they are spread across multiple committees or departments without coordination. This can reduce visibility and make it harder to identify who is accountable for specific risks, metrics or disclosures.
To avoid oversight gaps, the board should define which committee reviews which matters, how information flows between committees and when issues should be escalated to the full board. A clear structure helps ESG reporting remain coordinated rather than scattered across separate workstreams.
Is Your ESG Reporting Ready for Independent Assurance?
As ESG reporting matures, assurance is becoming a key part of the accountability process. Strong board oversight improves readiness for ESG assurance because it helps ensure that governance structures, documentation and controls are already in place before independent review begins.
Singapore’s sustainability reporting roadmap sets out a phased move towards external limited assurance. Listed issuers are expected to obtain limited assurance on Scope 1 and Scope 2 greenhouse gas emissions from FY2029, while large non-listed companies are expected to do so from FY2032. In August 2025, ACRA and SGX RegCo announced timeline extensions, giving companies more time to prepare for climate-related reporting and assurance requirements.
Sustainability report assurance depends on the quality of the underlying information. If ESG data is fragmented, inconsistent or poorly documented, assurance work may uncover gaps that could have been addressed earlier. Boards can reduce this risk by encouraging management to embed assurance-readiness into the reporting process.
This is where professional assurance services can support stronger reporting discipline. Assurance findings may provide useful feedback on data reliability, control gaps, methodology weaknesses and areas for future improvement, helping boards refine internal controls, improve documentation and clarify management responsibilities.
Supporting Board-Level ESG Oversight With Expert Assurance
Effective oversight depends on accurate information, strong internal controls, and independent insight. Credo Assurance supports boards through audit and assurance services that strengthen ESG governance, reporting accuracy, and accountability. We combine experienced auditors, a client-focused approach, and deep regulatory knowledge to support boards in their ESG monitoring and sustainability disclosures.
Contact us for expert advice on assurance readiness.
Frequently Asked Questions About ESG Reporting
ESG reporting can feel technical, especially as Singapore’s sustainability disclosure requirements continue to evolve. These FAQs explain the basics of ESG reporting, board responsibility and assurance readiness.
What is ESG reporting, explained simply?
ESG reporting is how a company explains its environmental, social and governance performance to stakeholders. It usually covers topics such as emissions, workplace practices, governance, ethics and risk management. A clear ESG sustainability report should be supported by reliable data, documented processes and senior-level review.
Why does ESG reporting matter in Singapore?
ESG reporting matters because investors, regulators, lenders and customers increasingly expect companies to explain how they manage sustainability risks. In Singapore, reporting expectations are expanding, so companies need stronger governance, clearer records and more reliable disclosure processes. Sustainability report assurance can also help strengthen confidence in reported information.
Who’s responsible for ESG reporting within a company?
Management usually prepares ESG data and disclosures, but the board is responsible for oversight. This includes setting direction, reviewing material risks and challenging whether disclosures are supported by evidence. Internal audit services may also help assess whether ESG controls and reporting processes are working as intended.
Does ESG reporting require independent assurance?
Independent assurance is becoming more important as reporting requirements mature. Some companies may seek audit and assurance services voluntarily, while others will need to prepare for phased assurance requirements. Where ESG claims involve suspected misstatement, misconduct or weak evidence, forensic accounting services may also help investigate the underlying records.
