On April 25, 2023, South Korea’s National Institute of Environmental Research (NIER) published a public consultation updating the toxic substances list (Notice No. 2023-26). This Notice shall enter into force three months after its publication.
In accordance with the Act on the Registration and Evaluation of Chemicals (known as K-REACH), competent authorities shall conduct hazard reviews and hazard assessments of substances that have completed registration. Classifications will be made based on the review results. If a substance is classified as a toxic substance, NIER will include it in the toxic substances list and publish a notice.
Six toxic substances have been added. Details are as follows:
Substance number |
Name of substances and content specifications |
2023-1-1110 |
[3,5-Difluorophenol;2713-34-0] and mixtures containing 5% or above of the substance. |
2023-1-1111 |
[Tetrahydro-3-methylthiophene 1,1-dioxide; 872-93-5] and mixtures containing 25% or above of the substance. |
2023-1-1112 |
[1,1,1-Trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide, cesium salt (1:1); 91742-16-4] and mixtures containing 25% or above of the substance. |
2023-1-1113 |
[1,1,2-Trichloroethane; 79-00-5] and mixtures containing 25% or above of the substance. |
2023-1-1114 |
[1,5-Diisocyanatopentane homopolymer, 2-ethyl-1-hexanol-blocked;1976005-08-9] and mixtures containing 1% or above of the substance. |
2023-1-1115 |
[Isononyl phosphate; 84988-61-4] and mixtures of 5% or above. |
Seven existing substances are updated. Details are as follows:
Substance number |
Name of substances and content specifications |
97-1-41 |
[DMAB; Dimethylamine borane; 74-94-2] and mixtures containing 25% or above of the substance. |
97-1-68 |
[Mercaptoacetic acid; 68-11-1] and mixtures containing 1% or above of the substance. |
97-1-73 |
[Methacrylonitrile;126-98-7] and mixtures containing 1% or above of the substance. |
97-1-134 |
[Selenium; 7782-49-2] and mixtures containing 1% or above of the substance; but mixtures containing 25% below of [Cadmium] sulfoselenide orange;12656-57-4] and [Cadmium sulfoselenide red;58339-34-7] are excluded. |
97-1-213 |
[Phosphorus pentachloride; 10026-13-8] and mixtures containing 1% or above of the substance. |
98-1-480 |
[Tributylamine; 102-82-9] and mixtures containing 1% or above of the substance. |
2014-1-692 |
[1-Decylpyridinium bis(fluorosulfonyl)imide; 1702310-11-9] and mixtures containing 25% or above of the substance. |
In accordance with the Chemical Control Act (CCA), companies involved with these six substances (including their content specification variations) must comply with the following requirements:
- Identify substance information, comply with marking or labeling standards; and report information of imported substances by January 1, 2024;
- Submit handling standards of hazardous substances by July 1, 2024;
- Obtain sales permit for hazardous substances, prepare and submit chemical accident prevention and management plans by July 1, 2025; and
- Comply with hazardous substances handling facilities and management standards by July 1, 2027.
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