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How Singapore issuers can shift to ISSB-aligned climate reporting

With mandatory ISSB-aligned climate disclosures from FY 2025, issuers should take key actions to accelerate their sustainability journeys.


In brief

  • An EY-CPA Australia study found that while 98% of Singapore issuers reported climate-related disclosures in FY 2024, ISSB framework adoption is nascent. 
  • To hasten their sustainability journey, issuers should adequately assess the true exposure of climate-related impact to the business. 
  • Developing a robust transition plan and equipping different functions with sustainability knowledge are crucial as well.

At the end of the reporting period for FY 2025, all issuers, regardless of the sector, will be required to disclose mandatory climate-related disclosures under the new International Sustainability Standards Board (ISSB) regime. This will supersede the current “comply or explain” approach for climate-related disclosures based on the Task Force on Climate-related Financial Disclosures (TCFD) recommendations, except for issuers in the (i) agriculture, food and forest products, energy, and financial industries and (ii) materials and buildings and transportation industries (collectively known as “mandated industries”), which must provide climate-related disclosures by FY 2023 and FY 2024 respectively.  

A recent EY-CPA Australia study explores how Singapore-listed companies have progressed in climate reporting over the past three years and charts their efforts under the TCFD reporting framework. It includes all issuers listed on the Singapore Exchange (SGX) with a financial year-end of 31 December 2024 and whose sustainability reports were published on or before 31 May 2025.  

The study analyzed a total of 351 sustainability reports that contain disclosures meeting at least one of the TCFD recommendations. This is out of the 359 sustainability reports that were published, making up 98% of the December year-end listed issuers. With ISSB-aligned climate disclosures becoming mandatory from FY 2025, the study also evaluated the level of compliance with the TCFD reporting framework as an indicator of preparedness for the upcoming ISSB requirements. 

Key findings of the study include the following: 

  • Overall, 98% of issuers reported on their climate-related disclosures in FY 2024 (FY 2023: 96%). 
  • 32% of issuers made disclosures against all 11 TCFD recommendations (FY 2023: 20%). 
  • SGX-listed issuers addressed nine out of the 11 TCFD recommendations on average in FY 2024 (FY 2023: eight out of 11). 

Transparency in focus: state of climate reporting in Singapore (third edition)

This EY-CPA Australia report provides insights into the current state of climate reporting by issuers in Singapore.

Adoption rate of the ISSB standards in Singapore

With all SGX-listed issuers mandated to transition their climate-related disclosures from the TCFD framework to the ISSB standards in FY 2025, the study also looked at whether issuers have begun adopting the ISSB standards early for their FY 2024 climate reporting.

In FY 2024, 14% of the issuers considered ISSB standards in forming their climate-related disclosures. 

The study also looked at selected disclosure requirements under the ISSB standards as well as maturity in coverage of the TCFD requirements to assess readiness to adopt the ISSB framework.

Where disclosures under the ISSB requirements were found to overlap with those under the TCFD framework, improvements in coverage were observed for the following:

  • Analyses of climate-related risks and opportunities over different time horizons 
  • Financial effects of climate-related risks and opportunities 
  • Transition plan reflecting an organization’s resilience  
  • Scope 3 greenhouse gas emissions disclosures 

Nevertheless, disclosures pertaining to the step-up requirements under the ISSB standards, such as cross-industry climate metrics and quantification of financial effects, remain limited. These low levels of disclosures reflect nascent adoption of the ISSB framework and suggest more focus and resources may be needed to address the requirement to comply with the FY 2025 adoption deadline.

The way forward

As companies shift to climate reporting under the ISSB standards, it is crucial to recognize that beyond compliance and reporting, the primary focus remains on actions that companies take to drive real-world change in their sustainability journeys. They should also consider whether the information is presented in a clear, comparable and credible manner to enable users to make informed decisions.

The primary focus remains on companies’ actions to drive real-world change in their sustainability journeys beyond compliance and reporting.

To accelerate change, issuers should consider the following actions:

1. Understand the true exposure of climate-related impact to the business

Having access to both quantitative and qualitative information is critical in understanding the extent of the impact of climate-related risks and opportunities on enterprise value as well as the wider environment and society, thereby enabling the organization to make informed strategic decisions.

Yet many companies are passive about climate-related issues, and few have embarked on a quantitative-based analysis of climate-related risks and opportunities.

Without conducting an adequate assessment, companies may struggle to mitigate climate-related risks to which they are materially exposed. Furthermore, they may miss out on opportunities, such as increased access to funding via sustainability-linked financing, grants and new revenue streams, leading to a potential loss in competitive edge to their peers.

2. Develop a robust transition plan

To create an actionable transition plan, companies need to gather information that provides a comprehensive view of their environmental footprint together with their climate-related risks and opportunities. Effective resource planning and allocation are also critical for a viable transition to a low- or no-carbon economy.  

When communicated clearly, a transition plan demonstrates clarity in the company’s vision and accountability for its commitments. 

This approach enables issuers to focus on their material exposures while aligning with the latest climate science trajectory to meet stakeholder expectations to survive and thrive in the medium to long term.

3. Equip members across different functions with sustainability knowledge

The responsibility for sustainability does not lie solely with the sustainability team. Instead, it extends across various functions within the organization. For instance, with the introduction of ISSB standards, it emphasizes the connectivity of sustainability-related financial disclosures, which requires the finance function to help prepare information for climate reporting purposes. 

To effectively promote sustainability, both board members and employees should possess a strong understanding of sustainability and key topics. Such knowledge will help them recognize the implications of climate change for their roles and encourage cross-functional collaboration to support the organization’s sustainability agenda.

Summary

From FY 2025, all Singapore issuers must disclose mandatory climate-related information under the new ISSB regime, which supersedes the current TCFD-based “comply or explain” approach. As companies transition to climate reporting under the ISSB standards, they must adequately assess the actual exposure of climate-related impact to the business, develop a robust transition plan and equip different functions with sustainability knowledge to accelerate their sustainability journeys.

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