South Korea is introducing mandatory sustainability reporting from 2028

| Jiří Staník

South Korea is introducing mandatory sustainability reporting. The largest companies listed on the KOSPI index (assets over $20 bn) will start reporting climate data from 2028, with smaller firms joining gradually. The standards are based on the ISSB (IFRS S1 and S2), but Korea gives companies more time — mandatory Scope 3 emissions reporting after three years instead of one.

Third‑party verification will initially be voluntary, and penalties will initially be replaced by advisory support. The final version of the rules is expected in April 2026.

South Korea ESG reporting ISSB IFRS S1 IFRS S2 Scope 3 sustainability

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