South Korea’s Financial Services Commission has released a draft roadmap for mandatory sustainability disclosures, under which large companies would begin reporting in 2028 based on 2027 data. The roadmap was published alongside Korea’s finalized Sustainability Reporting Standards (KSSB 1 and KSSB 2), which broadly align with the ISSB’s IFRS S1 and S2 frameworks. Companies listed on the KOSPI index with assets above KRW 30 trillion (around USD 20.4 billion) must report first, with the requirement potentially expanding to firms with assets above KRW 10 trillion one year later and possibly to smaller companies thereafter.

Scope 3 value chain emissions reporting will only become mandatory after a three-year transition (around 2030), longer than the ISSB’s standard one‑year relief, to allow time to build reporting infrastructure.

Third‑party assurance will initially be voluntary, enforcement will focus first on guidance rather than sanctions, and a safe harbour will apply to forecast‑ or estimate‑based disclosures in the early phase. The FSC is consulting on the proposals and plans to finalise the roadmap in April 2026.