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We support businesses in Singapore with structured sustainability report writing and assurance services, helping organisations demonstrate transparency, credibility, and accountability.
Sustainability reporting and assurance have become essential for organisations seeking to communicate their environmental, social, and governance (ESG) performance clearly and responsibly. At Credo Assurance, we provide sustainability report and assurance services that help businesses present reliable ESG information while meeting stakeholder and regulatory expectations.
Sustainability reporting sets out an organisation’s environmental, social, and governance performance, policies, risks, impacts and opportunities using applicable reporting criteria or recognised sustainability reporting frameworks. Sustainability reporting assurance is a separate process in which an independent practitioner obtains evidence and evaluates specified sustainability information against defined criteria before issuing an assurance conclusion.
Reporting frameworks and assurance standards serve different purposes. Reporting frameworks guide how organisations prepare and present sustainability disclosures, while assurance standards govern how independent assurance engagements are planned, performed and reported. ISAE 3000 (Revised), for example, applies to assurance engagements other than audits or reviews of historical financial information. The International Standard on Sustainability Assurance (ISSA) 5000 provides a dedicated global standard for sustainability assurance and becomes effective for sustainability information reported for periods beginning on or after 15 December 2026, with early application permitted.
Depending on the agreed scope and level of assurance, an engagement may evaluate ESG data, reporting processes, relevant internal controls and the evidence supporting selected disclosures. Independent procedures can include reviewing documentation, understanding and assessing relevant controls, tracing information to source records, testing selected ESG metrics and evaluating calculations against the applicable criteria.
Our ESG assurance services are structured around the specific subject matter, reporting criteria and assurance level agreed for the engagement. This provides stakeholders with independent assurance over the information within scope without suggesting that every statement or aspect of the sustainability report has been verified.
Sustainability reporting documents how a business manages ESG-related impacts, risks, and opportunities. This typically includes disclosures on environmental performance, workforce practices, governance structures, and long-term sustainability objectives. While reporting frameworks and standards may vary, the focus remains on consistency, transparency, and relevance to stakeholders.
Sustainability assurance involves an independent review of sustainability disclosures to assess their accuracy, completeness, and alignment with applicable reporting criteria. This allows organisations to demonstrate that their ESG information has been evaluated objectively, enhancing confidence among stakeholders and reducing the risk of misstatements.
A structured approach to sustainability reporting and assurance helps organisations manage ESG disclosures effectively while maintaining credibility.
Singapore’s sustainability reporting landscape continues to develop under a phased, climate-first approach. SGX-listed companies are already subject to sustainability reporting requirements, with Scope 1 and Scope 2 greenhouse gas emissions reporting applying to all listed companies from FY2025 and other ISSB-based climate-related disclosures being introduced progressively according to company category and market capitalisation.
External assurance requirements are also being phased in. Under the current roadmap, listed companies will be required to obtain external limited assurance over Scope 1 and Scope 2 greenhouse gas emissions from FY2029, while requirements for qualifying large non-listed companies begin later.
Alongside regulatory developments, investors, lenders, customers and other stakeholders are placing greater emphasis on reliable, comparable and well-supported sustainability information. Organisations are therefore strengthening ESG data collection, internal controls, governance and documentation so that their reporting processes can respond more effectively to future disclosure and assurance requirements.
The process begins with identifying ESG topics that are most relevant to the organisation’s operations, risks, and stakeholder concerns. This ensures that sustainability disclosures remain meaningful rather than overly broad or generic.
Once material topics are identified, sustainability disclosures are prepared in a structured format that aligns with recognised reporting practices. This supports comparability, clarity, and ease of review for stakeholders.
Sustainability report assurance provides an independent assessment of ESG disclosures, evaluating whether information is supported by appropriate processes, controls, and documentation. This step enhances reliability and reinforces accountability.
A typical sustainability assurance engagement begins by defining the reporting scope, applicable criteria, level of assurance and sustainability information to be assessed. The exact procedures will depend on the organisation, the disclosures within scope and the requirements of the engagement.
We establish the reporting period, entities, ESG information, applicable criteria and intended assurance level within the engagement scope.
We understand how relevant ESG information is collected, calculated, consolidated and reported across the organisation.
We assess relevant processes and controls supporting the preparation, review and approval of information within scope.
We perform procedures on selected information, which may include testing source data, calculations, reconciliations or samples against the applicable criteria.
We evaluate whether appropriate records and evidence support the disclosures and metrics being assured.
Following completion of the agreed procedures and evaluation of the evidence obtained, we issue an assurance report setting out the scope, applicable criteria, level of assurance and conclusion.
Sustainability reporting and assurance services are no longer limited to large multinational organisations. Local businesses across various sectors are adopting ESG disclosures to support long-term resilience and stakeholder confidence.
Transparent and assured sustainability information helps build credibility with customers, business partners, and financial institutions, particularly where ESG considerations influence commercial decisions.
The sustainability reporting process encourages organisations to formalise ESG policies, strengthen internal controls, and improve cross-functional accountability across departments.
Many tenders, partnerships, and financing arrangements increasingly require sustainability disclosures or ESG-related information. This is especially relevant for local businesses that form part of the supply chain for listed companies, multinational organisations, or overseas customers operating in markets with stronger sustainability reporting expectations.
As sustainability-related expectations continue to evolve, early adoption of sustainability report assurance services positions organisations to adapt more smoothly to future regulatory or market-driven changes.
At Credo Assurance, we support organisations in developing structured, meaningful sustainability reports tailored to their industry, size, and reporting obligations.
We assess your current ESG practices and disclosures to identify gaps against applicable reporting expectations and areas requiring improvement.
Our team helps identify ESG topics that are most relevant to your business and stakeholders, ensuring sustainability disclosures remain focused and decision-useful.
We support the preparation of sustainability reports that present ESG information clearly, consistently, and in line with recognised reporting practices.
Our sustainability report assurance services enhance the reliability and integrity of disclosures through independent and objective evaluation.
We provide assurance engagements at appropriate levels, based on your reporting objectives, stakeholder expectations, and regulatory context.
We review ESG data, controls, and supporting documentation to assess accuracy, consistency, and traceability of reported information.
Our sustainability assurance reports provide stakeholders with confidence that disclosures have been evaluated independently and systematically.
We help organisations navigate recognised international and Singapore sustainability reporting frameworks based on their regulatory obligations, stakeholder expectations and business objectives. Where sustainability report assurance is required or sought voluntarily, the applicable reporting criteria, assurance scope and supporting information should also be clearly established so that the engagement can be performed effectively. Reporting and assurance support is provided subject to applicable professional and independence requirements.
We help create sustainability reports aligned with ISSB requirements, including climate-related disclosures that address financial impacts and risk management.
We assist organisations reporting under GRI Standards, focusing on structured, transparent disclosures that address material ESG topics.
We support businesses in meeting SGX sustainability reporting requirements, ensuring disclosures are prepared clearly and in line with local regulatory expectations.
Publicly listed companies seeking to meet regulatory requirements and provide credible ESG disclosures to investors and stakeholders.
Private companies preparing for expansion, financing, or increased stakeholder scrutiny, where sustainability transparency supports long-term growth.
Group entities and multinational organisations requiring consistent sustainability report assurance across multiple business units or jurisdictions.
We deliver sustainability report assurance services with a clear focus on independence, objectivity, and professional judgement. Our assurance approach is designed to provide stakeholders with confidence that sustainability disclosures are evaluated impartially, supported by appropriate evidence, and free from undue influence.
Our team maintains a strong understanding of Singapore’s regulatory environment and evolving sustainability reporting expectations. This enables us to guide organisations through local requirements, industry practices, and market expectations, helping ensure sustainability reporting and assurance remain both compliant and relevant.
With experience across audit, accounting, and advisory services, we bring a balanced and practical perspective to sustainability reporting and assurance. This integrated approach allows us to identify risks, strengthen internal processes, and support clearer, more reliable ESG disclosures without compromising assurance independence.
Sustainability reporting requirements in Singapore depend on factors such as whether an organisation is listed, its industry, and applicable regulatory guidance. Listed companies are generally subject to specific sustainability reporting obligations, while many private organisations adopt sustainability reporting voluntarily in response to investor, customer, or lender expectations. Even where reporting is not mandatory, early adoption can help businesses prepare for future regulatory developments.
The required level of assurance varies based on regulatory requirements, stakeholder expectations, and the purpose of the sustainability report. Some organisations engage limited assurance to enhance credibility during early stages of reporting, while others may require reasonable assurance for higher levels of confidence. The appropriate level should balance reporting objectives, risk exposure, and stakeholder needs.
There is no one-size-fits-all framework for sustainability reporting. The most suitable framework depends on your business activities, regulatory environment, stakeholder priorities and reporting maturity. Factors such as industry alignment, comparability, applicable disclosure obligations and future reporting expectations should also be considered when selecting an approach.
If you are unsure which sustainability reporting framework may be appropriate for your organisation, contact us to discuss your reporting requirements, business circumstances and the type of support that may be suitable.
Sustainability reports are typically assured on an annual basis, in line with regular reporting cycles. However, the frequency of sustainability report assurance may vary depending on regulatory obligations, changes in business operations, or specific stakeholder requirements. Some organisations may also seek assurance for specific ESG disclosures outside the annual cycle when needed.
Sustainability reporting is the organisation’s process of preparing and presenting information about its ESG performance, impacts, risks, opportunities and governance. Sustainability assurance is an independent engagement that evaluates specified sustainability information against applicable criteria and provides an assurance conclusion based on the evidence obtained.
Organisations seeking independent evaluation of financial or non-financial information can learn more about our audit & assurance services and the types of assurance support available.
The duration of a sustainability assurance engagement depends on factors such as the reporting scope, number of entities or locations involved, availability and quality of ESG data, complexity of the disclosures, level of assurance and readiness of supporting documentation. A clearer timeline can usually be established once the engagement scope and information requirements have been assessed.
Businesses that need support strengthening reporting processes, documentation or disclosure readiness may also consider financial accounting advisory services before commencing an assurance engagement, subject to applicable independence considerations.