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PFHxS substances will be included in Thailand's "Hazardous Substances List", and production, import and export will face strict control!

Time：

2023-11-14

PFHxS substances will be included in Thailand's "Hazardous Substances List", and production, import and export will face strict control!

Recently, the Ministry of Industry and Engineering (DIW) of Thailand issued a notice proposing to include perfluorohexane sulfonic acid (PFHxS), its salts, and related compounds in Annex 5.1 of Thailand's Hazardous Substances List, as a third category of hazardous substances for control.

The revised proposal lists a total of 147 target substances and proposes relevant control measures for their production, import, export, and possession.

Proposal Background

PFHxS is one of perfluorinated and polyfluoroalkyl compounds (PFAS), which is often used in the manufacturing fields of fire foam, metal electroplating, textiles, leather, polishing agents, cleaning/detergent, coatings, paper products, and electronics and semiconductors.

Due to its persistence in the environment and higher bioaccumulation in the human body, this type of substance has received increasing attention in recent years.

As early as June 2022, perfluorohexane sulfonic acid (PFHxS), its salts, and related compounds were included in Appendix A of the Stockholm Convention's persistent organic matter removal list without any exemption conditions.

Many contracting parties to the Convention, such as China, Japan, New Zealand, Singapore, Australia, etc., have successively introduced or drafted relevant regulations and amendments to fulfill their obligations under the Convention.

The revision proposal of the "List" by Thailand's DIW is another addition to the control of PFAS substances, following the listing of 8 PFO Class A substances as hazardous substances in December last year.

Control measures

According to the Hazardous Substances Act of Thailand, the third category of hazardous substances refers to substances that are highly hazardous and should be strictly controlled, and must comply with the

following regulatory requirements:

Before producing or importing target substances, corresponding substance registration is required;

Before conducting activities related to the production, import, export, or possession of target substances, it is necessary to apply for and obtain corresponding licenses;

The 147 target substances listed in the revised proposal are based on the example list of PFHxS substances provided by the United Nations Persistent Organic Pollutants Review Committee (POPRC).