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Thailand forces the destruction of remaining PFOA and related substances in the country



Thailand has forcibly destroyed the remaining PFOA and related substances in the country, and the production, import, and possession of these hazardous substances are prohibited.

On February 28, 2023, the Ministry of industrial engineering (DIW) of Thailand issued the "Regulations on the Management of Hazardous Substances of Perfluorooctanoic Acid (PFOA), Its Salts and Related Compounds" in the Royal Gazette. Require business operators to notify the industrial department of the inventory and processing completion of relevant substances. The government has released a list of hazardous substances, which lists 8 related compounds. According to the Hazardous Substances Law, the production, import, and possession of these hazardous substances are prohibited. The regulations shall come into effect fifteen days from the date of publication in the Royal Gazette.


The following 8 substances are classified as 4 hazardous substances on the list:

  • Perfluorooctanoic acid, CAS No. 335-67-1
  • Perfluorooctanoic acid ammonium, CAS No. 3825-26-1
  • Sodium perfluorooctanoic acid, CAS No. 335-95-5
  • Potassium perfluorooctanate, CAS No. 2395-00-8
  • Silver perfluorooctanoic acid, CAS No. 335-93-3
  • Perfluorooctanoyl chloride, CAS No. 335-66-0
  • Perfluorooctanoic acid methyl ester, CAS No. 376-27-2
  • Perfluorooctanoic acid ethyl ester, CAS No. 3108-24-5


Manufacturers, importers, or holders of the above-mentioned hazardous substances should submit their remaining inventory and disposal completion plan to the industrial department before April 18, 2023, in accordance with the format of the "Hazardous Substance Quantity Report and Hazardous Substance Destruction Plan" (Vor Or./OrKor. 33).

Manufacturers, importers, or holders should report the quantity of residual hazardous substances, eliminate these substances in special hazardous substance incinerators before June 19, 2023, and submit a destruction certificate (Vor Or./Or Kor. 34 format) to the industrial department.

If the manufacturer, importer, or holder does not agree to handle according to the above order, they may file a written appeal with the industrial department within fifteen days. Those who violate the regulations will face up to six months in prison, a maximum fine of 50000 Thai baht, or both.


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