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South Korea discloses hazards and risk of 72 new substances under KOSHA

2025-05-12 Reference source : the Ministry of Employment and Labor (MOEL)

Chemical notification/ registration Hazardous chemicals KOSHA New substances Pre-registration South Korea Chemical Safety


On March 27, 2025, South Korea’s Ministry of Employment and Labor (MOEL) released a list of 72 new chemical substances that were manufactured or imported into the country during the first quarter (Q1) of 2025. The announcement is part of Korea’s continued effort to ensure chemical safety in workplaces under the Korea Occupational Safety and Health Act (KOSHA). Consequently, employers are urged to review the published list, implement the recommended safety measures, and educate all workers, especially foreign employees, on the proper chemical handling practices. 

Key Contents 

  • Total Substances Announced: 72 new chemical substances registered in Q1 2025. 

  • Hazardous Substances Identified: 32 substances, including 2-methylpiperazine, found to pose risks such as: 

  • Acute toxicity 

  • Reproductive toxicity 

  • Skin corrosion/irritation 

 Compliance Requirements for Manufacturers and Importers 

  • Pre-Notification Obligation: Manufacturers and importers must submit a hazard and risk assessment report to the MOEL 30 days before production/import. 

  • Safety Measures for Employers: 

  • Provide personal protective equipment (PPE) 

  • Install local exhaust ventilation 

  • Maintain and display Material Safety Data Sheets (MSDS) 

  • Use proper hazard warning labels 

Foreign Worker Safety 

  • To improve chemical safety for foreign employees, MOEL has published MSDS and label training materials in 17 languages, including English, Vietnamese, Chinese, and more. These materials help workers recognize hazard symbols and understand key safety instructions. 



We acknowledge that the above information has been compiled from the Ministry of Employment and Labor (MOEL) .

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