The Ministry of Industry in Thailand recently implemented the 8th edition of the List of Hazardous Substances, which was announced through a government gazette. This revision involves adjustments in the classification of chemicals within the agriculture, food and drug, and industrial sectors. Key updates include exemptions for natural plant components, enhanced control of cyanides, and the introduction of new regulations for persistent pollutants.
Updates on Controlled Substances by the Ministry of Agriculture (List 1)
Controlled Substances List (List 1.1)
|
No. |
Hazardous Substance Name |
CAS No. |
Hazardous Substance Category |
Additional Conditions |
|
194 |
Dicofol |
115-32-2 |
4 |
- |
|
687 |
Pentachlorobenzene |
608-93-5 |
4 |
|
|
688 |
Hexachlorobutadiene |
87-68-3 |
4 |
Controlled Substances List (List 1.2)
|
No. |
Hazardous Substance Name |
CAS No. |
Hazardous Substance Category |
Additional Conditions |
|
9 |
Plant Growth Regulators (Active Ingredients/Microorganisms/Plant Extracts) |
- |
2 |
Excludes physically processed natural plant parts only |
|
10 |
Pest Control Agents (Active Ingredients/Microorganisms/Plant Extracts) |
- |
2 |
|
|
11 |
Plant Disease Control Agents (Active Ingredients/Microorganisms/Plant Extracts) |
- |
2 |
|
|
12 |
Weed Control Agents (Active Ingredients/Microorganisms/Plant Extracts) |
- |
2 |
Food and Drug Committee Regulatory Adjustments (List 4)
Controlled Substances List (List 4.1)
|
No. |
Hazardous Substance Name |
CAS No. |
Hazardous Substance Category |
Additional Conditions |
|
223 |
Hydrogen peroxide |
7722-84-1 |
3 |
Restricted to domestic/public health uses (bleaching, disinfecting, cleaning) |
Controlled Substances List (List 4.2)
|
No. |
Hazardous Substance Name |
CAS No. |
Hazardous Substance Category |
Additional Conditions |
|
22 |
Chlorine and chlorine releasing substances) |
- |
3 |
Restricted to domestic/public health uses (bleaching, disinfecting, cleaning or unclogging pipes) |
Industrial Engineering Bureau Enhanced Cyanide Control (List 5)
|
No. |
Hazardous Substance Name |
CAS No. |
Hazardous Substance Category |
Additional Conditions |
|
71 |
Gold (I) cyanide |
506-65-0 |
3 |
|
|
72 |
Gold sodium cyanide |
15280-09-8 |
3 |
|
|
73 |
Gold potassium cyanide |
13967-50-5 |
3 |
|
|
85 |
Copper (I) cyanide |
544-92-3 |
3 |
|
|
88 |
Copper (II) cyanide |
14763-77-0 |
3 |
|
|
95 |
Cadmium cyanide |
542-83-6 |
3 |
|
|
122 |
Zinc cyanide |
557-21-1 |
3 |
|
|
147 |
Sodium cyanide |
143-33-9 |
3 |
Excluding substances managed by the Food and Drug Committee Office |
|
283 |
Potassium cyanide |
151-50-8 |
3 |
Excluding substances managed by the Food and Drug Committee Office |
|
289 |
Propionitrile or ethyl cyanide) |
107-12-0 |
3 |
|
Additionally, plant extracts used for pest control, such as neem, citronella, and turmeric, as well as citronella oil, were removed from the list of hazardous substances.
Enterprise Transition Arrangements
The new regulations will take effect from June 4, 2025. Enterprises previously engaged in the production, import, export, or possession of Category 3 substances must submit a permit application by July 4, 2025. Those involved with Category 4 substances must complete compliance modifications by December 4, 2025.
This revision of the list marks a significant upgrade in Thailand's chemical management system. While strengthening the supervision of highly toxic substances, it also relaxes restrictions on the use of natural plant ingredients. The new regulations balance industrial development with environmental safety through targeted control measures and are expected to promote innovation in agricultural bio-agents and enhance industrial safety standards. Enterprises need to closely monitor the transition period requirements to ensure compliant operations.
Further Information
