Thailand - Revised list of hazardous substances B.E. 256X

On 3 May 2021, the Department of Industrial Works (DIW), Ministry of Industry (MOI) of Thailand published the latest draft of hazardous substance list B.E. 256X.

Topics included these following topics:

• Triethanolamine (CAS RN 102-71-6) that has a threshold limit ≤ 30% w/w will be classified as List 5.6 hazardous substance instead of Type 3 hazardous substance if the production/import volume exceeds 1000 kg/ year
• Benzyl cyanide (CAS RN 140-29-4) is upgraded from Type 1 hazardous substance to Type 3
• Perfluorooctanoic acid (PFOA), its salts and PFOA-related compounds (8 substances) will be classified as Type 4 hazardous substances (banned) with specific exceptions for Type 3;

1. Perfluorooctanoic acid (CAS 335-67-1)
2. Ammonium Perfluorooctanoate (CAS 3825-26-1)
3. Sodium Perfluorooctanoate (CAS 335-95-5)
4. Potassium Perfluorooctanoate (CAS 2395-00-8)
5. Silver Perfluorooctanoate (CAS 335-93-3)
6. Perfluorooctanoyl Fluoride (CAS 335-66-0)
7. Methyl Perfluorooctanoate (CAS 376-27-2)
8. Ethyl Perfluorooctanoate (CAS 3108-24-5)

For electronic comments, please send an email with subject: Public Hearing.
A submission on initial responses is due by 14 May 2021.

For further information, please call +66 (0)2 202 4149 or +66 (0)2 202 4152 and/or have a look at the

- principles and rationale of the draft (PDF file) and the

- draft of hazardous substance list B.E. 256X (PDF file) itself.

Please note that both files are written in Thai.