IFRS S1 and S2, issued by the International Sustainability Standards Board, shift the framing of sustainability disclosure in three ways that matter operationally.
Connected to the financial statements
Sustainability information must be consistent with the financial statements on reporting entity boundary, reporting period and the assumptions used. Where the sustainability report covers a different set of subsidiaries than the consolidated accounts, that difference must be explained. In practice this forces the sustainability and finance teams into genuine joint working.
Published alongside the financial report
The principle is that sustainability information should be published at the same time as financial reporting. For many organisations this is the hardest requirement, because Scope 3 data currently takes far longer to assemble than the financial close. Preparing means redesigning the data process, not adding a section to a report.
Risks and opportunities, not only impacts
IFRS S2 focuses on how climate-related risks and opportunities affect cash flows, access to finance and cost of capital — including resilience under scenario analysis. That is a different lens from traditional sustainability reporting, which centred on the organisation's impact on the environment.
Where Thailand stands
Regulatory direction across Southeast Asia leans towards adopting the ISSB standards as a baseline, with transition periods and reliefs for mid-sized entities. Thai listed companies should track regulator announcements closely — and should not wait for a mandate before starting to prepare.
Three things you can start now
- Check whether the reporting entity in your sustainability report matches the consolidated accounts, and document any difference.
- Measure how many weeks after financial close your GHG data currently becomes available, then set a target to shorten it.
- Run one preliminary scenario analysis, however rough, so the board can see the shape of the risk.
This article is published for general information and does not constitute professional advice on any specific matter. To discuss your organisation’s situation, please contact our team.
