Key Takeaways:
- ESG due diligence assesses a target company’s environmental, social, and governance practices before an investment, acquisition, partnership, or financing decision.
- Unlike traditional financial due diligence, ESG due diligence considers sustainability-related risks that may affect operations, valuation, regulatory exposure, and long-term resilience.
- As sustainable and responsible business practices become more important, ESG considerations have served as a central part of due diligence analysis.
Introduction
As investors place greater attention on sustainable and responsible business practices, ESG considerations have become a central part of due diligence analysis. Financial statements, contracts, and operational performance remain important, but they may not fully capture how environmental, social, and governance risks could affect a company’s long-term value.
For businesses and investors in Singapore, ESG assessment is becoming more relevant as sustainability risks increasingly affect operational resilience, regulatory exposure, reputation and long-term business value. Looking at ESG factors during due diligence helps investors understand whether a target company’s sustainability claims are supported by clear data, responsible practices, and sound governance.
Understanding ESG Due Diligence
ESG due diligence is the process of assessing a target company’s environmental, social and governance practices before an investment, acquisition, partnership or financing decision. It looks at sustainability-related risks and opportunities that may affect the company’s operations, valuation, regulatory exposure, or long-term resilience.
Unlike traditional financial due diligence, which focuses mainly on financial performance, assets, liabilities, tax exposure and accounting records, ESG due diligence widens the lens. It may review environmental impacts, including greenhouse gas emissions, energy use, resource consumption, waste management, and climate resilience. It may also examine social factors such as workforce practices, health and safety, supplier relationships, customer treatment, and community engagement.
Governance is equally important. Investors may assess board oversight, internal policies, compliance frameworks, ethical standards, reporting controls, and management’s response to risk. Weak governance can make even strong environmental or social commitments difficult to trust.
The objective is not to treat ESG as a separate checklist. It is to understand how sustainability-related factors may influence business performance. A company with poor waste management practices, weak employee safeguards, or limited governance oversight may face operational disruption, compliance concerns, or reputational damage. By incorporating ESG factors into due diligence analysis, investors gain a clearer view of risks that may not be visible in financial data alone.
Key Components of ESG Risk Assessment
A thorough ESG review usually covers three broad areas: environmental, social and governance risks. Each area should be considered in relation to the target company’s industry, business model, supply chain, and regulatory environment.
1. Environmental Risks
Environmental due diligence examines how a business manages its impact on natural resources and its exposure to climate-related risks. This may include energy usage, emissions, waste management, water consumption, pollution controls, and resilience to extreme weather events.
For some businesses, environmental risks may translate into higher operating costs, legal exposure, or future capital expenditure. A company with poor energy efficiency may face higher utility costs. A business with inadequate waste management practices may be more exposed to regulatory action or customer concern. A company operating in climate-sensitive sectors may also need to consider physical risks such as flooding, heat stress, or supply chain disruption.
2. Social Risks
Social due diligence focuses on how a company manages relationships with employees, customers, suppliers and communities. This may include labour practices, workplace safety, employee engagement, diversity and inclusion policies, customer protection, product responsibility, and supplier management.
Social issues can directly affect business continuity. Poor labour practices may contribute to employee turnover, disputes or reputational harm. Weak supplier oversight may create exposure to unsafe practices or inconsistent quality. Poor customer handling may affect trust and brand perception.
3. Governance Risks
Governance due diligence examines the structures and controls that guide decision-making. This may include board composition, management accountability, compliance procedures, executive remuneration, internal controls, whistleblowing channels, related-party transactions, and transparency in reporting.
Weak governance can undermine investor confidence by undermining the reliability of information. Even if a company reports strong ESG initiatives, investors need to know whether the underlying data is credible and whether risks are being managed responsibly.
Evaluating Scope 1, 2, and 3 Emissions
For environmental due diligence, greenhouse gas emissions are often a key area of review. Investors need to understand not only the reported level of emissions but also how the data was calculated, whether the assumptions are reasonable, and whether the records can be traced back to reliable sources.
Scope 1 emissions refer to direct emissions from sources owned or controlled by the company. This may include fuel used in company-owned vehicles, equipment, or on-site operations. Scope 2 emissions refer to indirect emissions from purchased energy, such as electricity consumed by the business. Scope 3 emissions cover other indirect emissions across the value chain, including upstream and downstream activities.
Scope 3 emissions can be more complex because they may involve suppliers, distributors, customers, product use, transportation or financed activities, depending on the nature of the business. While companies may have less direct control over Scope 3 data, understanding value chain emissions remains important because upstream and downstream risks can affect costs, resilience, customer expectations, and investor assessments.
Practical Steps in ESG Due Diligence
A comprehensive ESG due diligence process should be structured to support decision-making yet flexible enough to reflect the target company’s industry and stage of maturity.
1. Data Collection and Verification
The first step is to gather relevant ESG information from internal records, management reports, supplier data, public disclosures and operational documents. This may include energy bills, emissions calculations, waste records, workplace policies, incident reports, board papers, and compliance registers.
Standardised frameworks such as the International Sustainability Standards Board (ISSB) and the Sustainability Accounting Standards Board (SASB) may support comparability and relevance. The ISSB provides a global baseline for sustainability-related financial disclosures, while SASB Standards offer industry-specific guidance on sustainability risks and opportunities. The IFRS Foundation notes that the ISSB is responsible for maintaining and enhancing SASB Standards, which are recognised by investors for comparable sustainability disclosures.
Verification matters because ESG information can come from many departments and systems. Investors should assess whether the data is supported by clear records, whether assumptions are documented, and whether the information can be reviewed independently if needed.
2. Stakeholder Engagement
ESG due diligence should not rely only on documents. Engagement with management, employees, suppliers and other stakeholders can provide context that data alone may not show.
Interviews or workshops may reveal whether policies are understood in practice, whether employees know how to escalate concerns and whether management has realistic plans for improvement. Supplier engagement may also show whether value chain risks are being actively monitored or only loosely acknowledged.
Qualitative insights are especially useful where ESG risks are behavioural, cultural or governance-related. A company may have written policies, but the strength of implementation often depends on how people understand and apply them.
3. Risk Assessment and Materiality Analysis
Not every ESG issue carries the same weight for every company. A materiality assessment helps identify which sustainability factors may reasonably affect financial performance, regulatory exposure, operational continuity or strategic objectives.
For example, water usage may be highly relevant for a manufacturing or food-related company, while data privacy, workforce practices or supply chain ethics may be more material for other sectors. The aim is to focus attention on risks that could influence enterprise value or investment outcomes.
This stage of due diligence analysis should connect ESG findings to financial and strategic implications. Investors may ask whether risks require additional capital expenditure, stronger internal controls, revised supplier terms or post-investment monitoring.
4. Reporting and Documentation
A clear due diligence report should document the scope of review, methodology, assumptions, limitations, key findings and recommended actions. This makes the assessment easier to understand, compare and verify.
Documentation is especially important when ESG findings influence valuation, deal terms or investment conditions. It also supports future reporting and assurance if the company later needs to disclose sustainability-related information to investors, regulators or other stakeholders.
Strong documentation should explain not only what was found, but also how conclusions were reached. This gives decision-makers a clearer basis for action.
Benefits of ESG Due Diligence
Incorporating ESG due diligence into investment analysis provides a more complete view of risk and opportunity. It may also help investors engage more constructively with target companies before and after a transaction.
1. Risk Mitigation Through ESG Due Diligence
ESG due diligence provides investors with earlier visibility into environmental, social, or governance issues that may affect financial performance. Poor waste management, weak labour practices, limited emissions tracking or unclear compliance responsibilities may all create future costs or disruption.
By identifying these issues before committing capital, investors can make more informed decisions. They may adjust valuation assumptions, request additional information, set post-investment improvement plans or decide that certain risks are too significant.
This does not remove uncertainty, but it makes risk more visible and manageable.
2. Gaining a Strategic Advantage
Understanding ESG practices may also help investors identify companies that are better prepared for changing market, regulatory and stakeholder expectations. A business that already tracks key ESG metrics, manages climate-related risks and maintains stronger governance processes may be more resilient over time.
This is not simply about reputation. Better ESG visibility can support operational planning, supplier management, risk controls and access to stakeholder trust. Investors who understand these factors may be better positioned to support long-term value creation.
3. Ensuring Regulatory Compliance
For listed or regulated entities, ESG due diligence can help assess whether sustainability disclosures and internal reporting processes are aligned with applicable requirements. In Singapore, listed companies should consider SGX sustainability reporting requirements and, where relevant, the phased implementation of ISSB-aligned climate-related disclosures.
Due diligence may assess whether governance frameworks, environmental metrics, and social practices are documented clearly enough to meet reporting obligations. It may also identify gaps in controls, ownership or data collection before they become larger compliance concerns.
4. Enhancing Investor Confidence
Transparent and well-supported ESG information strengthens investor confidence because it reduces reliance on broad claims. When ESG disclosures are supported by documentation, internal controls, and independent review, where appropriate, investors can better assess the credibility of the information.
This is where sustainability report assurance may become relevant. Assurance can provide additional confidence in selected sustainability information by reviewing whether reported data is supported, consistent, and prepared in accordance with relevant criteria.
For companies seeking investment, credible ESG information may make discussions with investors more productive. For investors, it supports clearer judgement about sustainability risks and opportunities.
Credo Assurance’s Role in ESG Due Diligence
A well-structured due diligence analysis should go beyond broad ESG statements. It should examine data quality, emissions reporting, workforce practices, governance controls, stakeholder feedback, materiality, and documentation. This gives investors a more reliable view of how sustainability risks may affect the target company’s future performance.
Credo Assurance supports Singapore businesses with audit, assurance and financial accounting advisory services that help improve the reliability of financial and non-financial information. In an ESG context, this means helping companies approach sustainability risks with the same discipline expected in financial reporting: clear records, defined responsibilities, traceable data and evidence-based review.
This support is especially relevant for small and medium enterprises (SMEs) that may not have large internal sustainability teams. Credo Assurance has a strong track record of working with SMEs and small businesses across diverse industries, delivering focused financial support that reflects their business models, reporting needs, and daily operational priorities without unnecessary complexity or cost.
Beyond ESG-specific reviews, we also provide accounting services that support better reporting discipline across the organisation. When financial data, operational records, and sustainability information are managed with clearer controls and documentation, investors can assess the business with greater confidence.
Get in touch with us to learn more about our expertise.
