Thailand Seeks Feedback on the Classification of POPs as Hazardous Substances under Stockholm Convention

Thailand’s Department of Industrial Works (DIW), under the Ministry of Industry, launched a public consultation regarding a draft ministerial announcement on December 2, 2024. This proposal seeks to classify certain chemicals as Type 3 (controlled) hazardous substances in accordance with the Stockholm Convention, with the aim of strengthening the regulation of hazardous substances in Thailand. The consultation specifically addresses the proposed classification of four chemicals as Type 3 hazardous substances under the Hazardous Substances Act B.E. 2535.

Chemicals under Consideration

The chemicals proposed for Type 3 classification are:

1. Dechlorane Plus

2. Dechlorane Plus (syn-isomer)

3. Dechlorane Plus (anti-isomer)

4. UV-328

Background to the Ministerial Announcement

Thailand has been a Party to the Stockholm Convention since 2005 and is committed to the elimination of persistent organic pollutants (POPs) to safeguard human health and the environment. At the 11th Conference of the Parties to the Stockholm Convention in May 2023, three substances were recognized as POPs and added to Annex A (the Elimination List), including:

• Dechlorane Plus (syn- and anti-isomers)
• UV-328
• Methoxychlor

Subsequently, the Stockholm Convention Subcommittee met on July 18, 2023, and tasked DIW with classifying Dechlorane Plus (both syn- and anti-isomers) and UV-328 as Type 3 hazardous substances under the Hazardous Substances Act B.E. 2535, with strict controls to phase out their production, use, and release.

Purpose and Survey Details for the Public Consultation

The public consultation aims to gather feedback from a wide range of stakeholders to ensure that the regulation of hazardous substances is well informed and practical. The draft announcement proposes stricter controls on the import, export, production, possession, and transit of these substances.

DIW has called for participation from a range of stakeholders, including:
• Government agencies such as the Department of Agriculture and the Food and Drug Administration
• Academics, independent organizations, and the public
• Operators dealing with hazardous substances (importers, manufacturers, distributors)
• Other interested parties

Stakeholders are invited to comment on the classification of four substances as Type 3 hazardous substances. They may agree or disagree with the proposal, either fully or partially, and are encouraged to provide justifications, suggestions, or alternatives. The feedback collected will help the authorities to assess the potential impact of the proposed measures, ensuring a balanced approach that addresses both regulatory needs and stakeholder concerns. This inclusive process will ensure that the final ministerial announcement is transparent, practical, and informed by diverse perspectives.