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Brief on Recent Developments in Thailand’s Hazardous Substance Act

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 reduced to ease the industry’s compliance burden. A new chemical regulation, Chemical Substance Act, was released for public comments in April. Once the Chemical Substance Act is approved, it will replace the Hazardous Substance Act.

Hazardous Substance Act (HSA) is the most major chemical regulation in Thailand, which has been revised four times since it was released in 1992. In April 2019, Thailand released the Hazardous Substance Act (No.4) [1], which will take effect on 27th October 2019. The fourth revision focused on stating the definition of “transit” and separating it from “import” and speeding up the customs process by reducing repeat steps. 

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