Raymond Cheung
Chartered Actuary · CRO · Board Adviser · Singapore
ACRA's draft Singapore Sustainability Disclosure Standards, out for consultation until 25 October 2026, make the climate standard mandatory and keep the broader sustainability standard voluntary. The risk for boards is reading 'voluntary' as 'not our problem' — when the harder question, materiality, still sits with the board.
A board I advise spent most of its last ESG session working out the minimum it was obliged to disclose. A reasonable instinct, and the wrong question to lead with.
ACRA's draft Singapore Sustainability Disclosure Standards — out for consultation through the REACH portal until 25 October 2026 — formalise a split. The climate-specific standard, SFRS S2, becomes mandatory on a phased timeline. The broader general sustainability standard, SFRS S1, stays voluntary. Both are built on the ISSB's IFRS S1 and S2 with local modifications, but Singapore is deliberately diverging from jurisdictions that switched on both at once.
I understand the policy logic. ACRA's own chief executive frames this as "a multi-year journey for both preparers and assurance providers", and the audit capacity to verify anything wider than climate does not yet exist here — hence the parallel Sustainability Assurance Body of Knowledge to build it. Phasing is sensible.
The risk is in how boards hear it. "Voluntary" gets received as "not yet our problem", and the sustainability conversation contracts to greenhouse gas accounting, because that is the part with a filing deadline attached.
“The mandate line tells you what the regulator will check. It does not tell you what is financially material to your business.”
That second question is the board's, and it does not move because a standard is voluntary. If your workforce practices, your supply-chain concentration, or your dependence on a single regulator in a single country could move earnings, that belongs in front of the board whether or not SFRS S1 ever becomes compulsory. The companies that will look worst in three years are the ones that treated the mandatory climate standard as the ceiling of their disclosure obligation.
What I am telling boards now: run the materiality assessment as if S1 were mandatory, then decide what to disclose. You may still land on climate-only reporting for this cycle — that can be the right call on cost and readiness grounds. But make it a decision the board took with the full picture in view, minuted as such, rather than a default you backed into because the deadline only covered one topic. The consultation closes 25 October; if your company has a view on the pace, that is the window to put it to ACRA.
Common Questions
Are the Singapore Sustainability Disclosure Standards mandatory?
Under ACRA's draft proposal, out for public consultation until 25 October 2026, only the climate-specific standard (SFRS S2) would be mandatory, on a phased timeline. The broader general sustainability standard (SFRS S1) would remain voluntary. Both are based on the ISSB's IFRS S1 and S2 with local modifications.
What is the difference between SFRS S1 and SFRS S2?
SFRS S2 is the climate-specific disclosure standard, covering governance, strategy, risk management and metrics for climate-related risks and opportunities. SFRS S1 is the broader standard covering sustainability-related financial information beyond climate. Singapore's draft makes S2 mandatory and keeps S1 voluntary.
What should a board do about voluntary sustainability disclosure?
Treat the mandatory line as a compliance floor, not a materiality judgement. Run a full sustainability materiality assessment, identify which non-climate topics could affect earnings or strategy, and make a documented board decision on what to disclose — rather than defaulting to climate-only reporting because that is the only topic with a filing deadline.
About the author
Raymond Cheung is a Chartered Actuary, C-suite executive and board adviser with more than 20 years of experience across Asia in risk management, insurance, ESG and corporate governance. He is the CEO of CER Consultancy and an accredited trainer at SMU Academy and the Singapore College of Insurance.