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Hazardous chemicals

The management of hazardous chemicals in Thailand is implemented by the Hazardous Substance Control Act. The manufacture, import, export, sale, storage, transport, etc. of the hazardous substances must follow the requirements specified in the Act. The Act categorizes hazardous substances into 4 types with corresponding hazard levels and obligations, including notification, registration, application for license, etc. 6 annexes of hazardous chemicals are provided as the scope of the Act. Each of the 6 annex lists the substances that fall under the management of one of the 6 competent authorities.

Annex 5 is regulated by the Department of Industrial Works (DIW) under the Ministry of Industry (MOI) and is the list that the chemical industry is most interested in. The scope of annex 5 was expanded recently by the Annex 5.6. Instead of giving a list of substances, Annex 5.6 provides 10 hazard properties and stipulates that all chemicals that meet the hazard criteria and hasn’t been included in other substance lists should be added into this annex through notification. The notification is expected to end by the end of 2016.

Thailand adopts the UN GHS 3rd revision. For now, DIW and Food and Drug Administration (FDA) have implemented GHS for the substances under their management. Other departments are still in the preparation stage and are expected to implement the requirements in the future.

New chemicals

Thailand DIW announced that a REACH-like regulation for new substances is on the agenda. As the key foundation of the regulation, a national inventory of existing substances is being established. For information collection, DIW encourages the industry to notify their chemicals through the Annex 5.6 notification system no matter whether the substances meet the hazard criteria or not. DIW will then combine the existing list of hazardous chemicals, the substances notified through Annex 5.6 and its own database and produce the national inventory of existing substances. The inventory is expected to be finalized after the end of 2016 when the Annex 5.6 notification is completed. After that, the substances that are not listed in the inventory will be regarded as new chemicals and have to comply with other regulatory requirements.

Occupational safety and health

The Factory Act categorizes the factories in Thailand in 3 types. Each type has to comply with different obligations such as notification and application for permits. Some specific requirements regarding occupational safety and health and environmental protection are stipulated by the Act, including location selection, equipment management, waste control, pollutant emission control, etc.

  • Thailand Consults on the Latest Revision of the Hazardous Substances List

      November 5, 2019    Horace Wang    604

    Takehome: Thailand DOA releases a new revision to the Hazardous Substance List and is seeking feedback from the public. Future use of Glyphosate, Chlorpyrifos, Paraquat, and their derivatives will be prohibited if the draft version passes.
  • Brief on Recent Developments in Thailand’s Hazardous Substance Act

      October 14, 2019    Horace Wang    884

    Takehome: The 4th version of the Thailand Hazardous Substance Act will enter into effect on 27th October 2019. In the revised Act, the definition of “transit” is separated from “import”. Redundant/superfluous procedures in the importation process have also been...
  • Thailand Issues the List of Hazardous Substances (No.5)

      October 9, 2019    Horace Wang    862

    Takehome: Thailand has approved the List of Hazardous Substances No.5, the amendment involves Annex 4.1, 4.2 and 5.1. The information of five substances is modified and thirteen substances are added into the revised list.
  • Thailand’s Revised Hazardous Substance Act Will be Implemented on Oct 27th 2019

      June 20, 2019    Nadine He    1911

    Thailand’s Hazardous Substance Act has been revised three times since it was first issued in 1992. The latest Amendment of the Hazardous Substance Act was published in the Thai Government Gazette on Apr 30th, 2019 as B.E. 2562 (2019). The amendments...
  • Thailand Port Explosion Caused by Undeclared Dangerous Cargo

      May 31, 2019    Nora Wang    1430

    A container ship berthed at Thailand’s Laem Chabang port was decimated by a fire and explosion on May 25, 2019, leaving 25 people injured and as many as 130 hospitalized. According to the Department of Disaster Prevention and Mitigation (DDPM) under the Thai...
  • Thailand Consults on Updated Hazardous Chemicals List

      March 15, 2019    Nadine He    1983

    On 11 Mar, Thailand’s Department of Industrial Works (DIW) issued a notice (B.E.2562), consulting on a proposal to make some changes to the List of Hazardous Substances under the Hazardous Substances Control Act (HSCA). The proposed changes are as follows,...

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