The classification, signed by Industry Minister Suriya Juangroongruangkit, was published in the Royal Gazette on Wednesday (May 20). So far, chlorpyrifos, chlorpyrifos-methyl, paraquat and paraquat dichloride have been listed as Type 4 hazardous substances.
Thailand categorises hazardous substances into four types based on their control requirements. Type 1 are subjected to the least stringent regulations, while all activities related to Type 4 substances are prohibited.
Hence, all manufacturers, importers, exporters or possessors of these Type 4 substances have to comply with the order within the time specified by the authorities.