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South Korea Designates 3 New Toxic Substances (Updated on Aug 1, 2023)

3 substances are newly designated as toxic substances after hazard evaluation under K-REACH.

Updates: 

On August 1, 2023, South Korea’s NIER adopted the proposed updates to the TCSL and the GHS Classification List. The updated TCSL will come into force on November 2, 2023. The amendments to GHS Classification List took immediately. 

Manufactures, importers and handlers, who have operated businesses involving the abovementioned toxic substances and mixtures containing them before the effective date, shall complete relevant obligations under the Chemical Control Act (K-CCA) within the deadlines specified. More specifically,

By July 1, 2024

  • Manufactures or importers shall submit a ‘Written Confirmation of Verification on Chemical Products’ as per Article 9 of K-CCA.

  • Handlers shall complete updating the labels of these toxic substances as per Article 16 of K-CCA.

  • Importers shall submit importation notification as per Article 20 of K-CCA.

By January 1, 2025

  • Handlers shall meet the criteria for handling toxic substances as per Article 13 of K-CCA and Annex 1 of K-CCA Enforcement Rules.

By January 1, 2026

  • Enterprises who install and operate relevant handling facilities shall prepare the chemical accident management plan as per Article 23 of K-CCA.

  • Handlers shall obtain the corresponding business license as per Article 28 of K-CCA.

By January, 2028

  • Enterprises which install and operate relevant handling facilities shall meet the standards for the establishment and management of such handling facilities as per Article 24 of K-CCA and Annex 5 of K-CCA Enforcement Rules.

For more details, see NIER Announcement No.2023-41 and NIER Announcement No.2023-42.

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South Korea’s National Institute of Environmental Research (NIER) is consulting on the amendments to the Toxic Chemical Substances List and the GHS Classification List. Comments are welcome before July 10, 2023.

Proposed updates

TCSL: NIER Notice No. 2023-300

  • To add 3 substances as toxic substances (NIER Given No. 2023-1-1116 ~ 2023-1-1118 (see table below), which were previously registered and found toxic after the hazard evaluation under K-REACH.

NIER Given No.

Chemical Name

CAS Numbe

2023-1-1116

Cobalt manganese nickel oxide

37348- 84-8

2023-1-1117

Silica gel reaction products with chromium oxide (CrO3) and ethoxydiethylalu minum

932384 -12-8

2023-1-1118

1-Bromo-2 -methylbenzene

95-46- 5

  • To update chemical information of 4 toxic substances (NIER Given No. 97-1-24, 97-1-106, 97-1-205, 2005-1-547) that were previously designated.

Transitional measures regarding import notification, licensing requirements labeling requirements, etc. will be provided for the control of these newly designated toxic substances under K-CCA.

 GHS Classification List: NIER Notice No. 2023-301

  • To add corresponding classification information, pictogram, signal words, hazard statements, M factors and UN No., etc. of 3 substances (NIER Given No. 2023-1-1116 ~ 2023-1-1118), which were registered and proposed to be designated as toxic substances after hazard evaluation under K-REACH.

  • To add hazard information on a restricted substance - Acrylamide (CAS No. 79-06-1; NIER Given No. 06-5-14).

  • To update classification information of 5 toxic substances (NIER Given No. 97-1-24, 97-1-106, 97-1-171, 97-1-205, 2005-1-547) that were previously designated.

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