Thailand Expands Lists of Dangerous Substances

Thailand wants to add ten new substances to the list of dangerous chemicals. The chemicals must be registered with the Department of Industrial Works and require approval and a registration certificate before the companies affected can manufacture or import the chemicals. The chemicals involved are substances with an increased hazard potential (Type 3), including:  

  • Triethanolamine: Used in washing and cleaning products, lubricants, greases, and metalworking fluids 
  • Benzyl cyanide: An intermediate product 
  • Perfluorooctanoic acid (PFOA) and ammonium perfluorooctanoate: Both are used in the  
    manufacture of polymers and make products water- and oil-proof 
  • Sodium perfluorooctanoate, potassium perfluorooctanoate, and silver perfluorooctanoate: Used in the automotive industry 
  • Perfluorooctanoyl fluoride: Used in cosmetics 
  • Methyl perfluorooctanoate and ethyl perfluorooctanoate: Intermediate chemical products 

Mandatory approval applies to triethanolamine only when it is used in a quantity greater than 30% by weight. If the percentage by weight is less, registration is required if the entire production or  
import volume is more than one ton per year.  

PFOA may be used only as follows: 

  • Photo-lithographic applications and etching processes in semiconductors 
  • Photographic coatings 
  • Treated textiles for water- and oil-proofing 
  • Firefighting foam  
  • Production of medical devices 

On this topic, please also read our message Thailand: New Chemicals Law Takes Shape 

Does the regulation affect you? Do you want to make sure that you’re in compliance with the law? Please contact us at any time at

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