K-REACH: annual registration tonnage band deadlines approaching
Under South Korea's K-REACH (Act on Registration and Evaluation of Chemical Substances), existing substances register in phased tonnage bands. The next major deadline is 31 December 2027, for substances manufactured or imported at 10 t/y or more and less than 100 t/y — often lower-visibility specialty chemicals, additives and intermediates. Pre-registration is not the same as final registration; companies should confirm tonnage bands, importer/Only Representative responsibility and joint-registration status well before the deadline.
Published16 Sept 2026
EffectivePhase-in deadlines already passed: 31 December 2021 (≥ 1,000 t/y and CMR substances ≥ 1 t/y) and 31 December 2024 (100–1,000 t/y). Remaining bands: 31 December 2027 (10–100 t/y) and 31 December 2030 (1–10 t/y).
Compliance deadline31 Dec 2027Next deadline: 31 December 2027, for existing substances manufactured or imported in South Korea at 10 t/y or more and less than 100 t/y. The following band, 1 t/y up to 10 t/y, is due 31 December 2030.
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