Korea's NICS proposed GHS updates for 65 new and 12 revised substances, with comments due Nov 5, 2026, and compliance by Jan 1, 2028.

On October 15, 2026, South Korea’s National Institute of Chemical Safety proposed amendments to K-REACH hazard reviews, adding evaluation results for 46 new chemicals and 1 substance of concern while updating data for 63 existing substances. Industry stakeholders have until November 4, 2026, to submit public comments before companies must update SDSs, labels, and chemical compliance.

South Korea revised chemical classification and labeling rules, adding 38 substances hazardous to humans and updating 9, with compliance due by July 1, 2027.

On September 2, 2026, the National Institute of Chemical Safety (NICS) of South Korea, affiliated with the Ministry of Climate, Energy and Environment (MCEE), issued the Notice on the Partial Revision of the Hazard Review Results of Chemical Substances (Notice No. 2026-15), adding the hazard review results of 78 existing chemical substances and newly establishing the attached table of hazard assessment results. The revision takes effect from the date of issue.

South Korea’s MCEE proposes banning hard‑to‑separate PET‑metal combined packaging from 1 January 2028, with public comments due by 21 September 2026.

South Korea’s NICS proposed amendments to its chemical classification and labeling regulations under the Chemicals Control Act. The update adds GHS hazard entries for 38 new substances and revises nine existing listings. Manufacturers, importers, and downstream users must review handled chemicals and update packaging labels and SDS before the July 1, 2027 compliance deadline.

South Korea's NICS has pre-announced plans to designate 38 chemicals as acute-toxic, chronic-toxic, or ecotoxic substances under K-REACH.

South Korea's NICS has fixed the upper, lower, and lowest handling quantities for 73 newly designated acute-toxic hazardous substances under Notice No. 2026-4.

Korea's NICS issued Administrative Notice No. 2026-77 proposing prescribed quantity thresholds for 38 newly designated hazardous chemicals.

South Korea's MCEE has opened a consultation until 15 April 2026 on a full rewrite of the hazardous chemical business regulation under the K-CCA.