Local adoption of IFRS S1 / S2 (ISSB Standards)
Korea's KSSB finalized KSSB Standards No. 1 and No. 2, based on IFRS S1 and S2, on 26 February 2026. The FSC's final roadmap of 8 July 2026 makes sustainability disclosure part of statutory business reports under the FSCMA from 2028 (FY2027) for KOSPI companies with consolidated assets of KRW 10 trillion or more, widening to KRW 5 trillion in 2029, with a three-year liability safe harbor, third-party verification from 2030 and Scope 3 deferred to 2031 or later.
- Enforcement
- Mandatory under the announced roadmap once FSCMA and related rules are amended; voluntary until then
- Effective date
- Filing from 2028 for FY2027: KOSPI-listed companies with total consolidated assets of KRW 10 trillion or more. From 2029: threshold lowered to KRW 5 trillion. From 2030: authorities to consider lowering it to KRW 2 trillion after reviewing 2028 to 2029 practice. Third-party verification from 2030. Scope 3 deferred to 2031 (KRW 10 trillion or more), 2032 (KRW 5 trillion or more) and 2033 (KRW 2 trillion or more).
- Covered entities
- KOSPI-listed companies, phased by total consolidated assets (KRW 10 trillion, then KRW 5 trillion, possibly KRW 2 trillion), reporting on a consolidated basis. FSC estimates 291 companies (including affiliates) in 2028 and 3,171 in 2029. Other listed companies may disclose voluntarily through KRX using KSSB standards. SMEs that are not high emitters are exempt from Scope 3.