Thailand Regulatory News

On 18 March 2025, Thailand’s Ministry of Industry has issued a major update to its List of Hazardous Substances (No. 8), which will come into effect the day after its publication in the Royal Gazett...

On 18 March 2025, Thailand’s Ministry of Industry has issued a major update to its List of Hazardous Substances (No. 8), which will come into effect the day after its publication in the Royal Gazette. This revision introduces significant changes to the classification and management of hazardous chemicals. These changes will affect manufacturers, importers, exporters, and stakeholders throughout the global chemical industry. The changes aim to enhance public safety, environmental protection, and regulatory compliance. 

Revocations: Key Substances Removed 

In the latest revision, two hazardous substances have been officially removed from the hazardous substances list. These substances were previously classified as hazardous but will no longer be subject to regulatory control. 

The first revocation involves plant extracts used for pest control, including substances such as neem, galangal, and citronella, which were previously listed under List 1.2 and controlled by the Department of Agriculture. The second revocation affects citronella oil, a substance previously listed under List 4.1 under the jurisdiction of the Food and Drug Administration (FDA). With these revocations, the Ministry of Industry has reclassified these substances, removing them from the list of regulated hazardous substances. 

Revised Control Measures for 17 Hazardous Substances 

In addition to the revocations, the announcement also includes extensive revisions to the control measures for 17 other hazardous substances. These revisions affect substances listed under the control of several government agencies. Notably, 10 substances under the Department of Industrial Works (List 5.1) have had their control measures updated, along with several substances under the Department of Agriculture (Lists 1.1 and 1.2) and the Food and Drug Administration (Lists 4.1 and 4.2). These changes reflect ongoing efforts to align Thailand’s regulatory framework with international safety standards and to address evolving concerns regarding chemical safety and environmental risks. 

New Hazardous Substances Added to the List 

Two new substances have been added to the hazardous substances list. Both pentachlorobenzene (CAS No. 608-93-5) and hexachlorobutadiene (CAS No. 87-68-3) are now classified under List 1.1 and are under the regulatory control of the Department of Agriculture. The inclusion of these substances signals Thailand's proactive approach to managing emerging chemical risks and ensuring that potentially harmful substances are adequately regulated. 

Implications for Global Chemical Industry Stakeholders 

The changes to Thailand’s hazardous substances list have important implications for the global chemical industry. Manufacturers, importers, exporters, and anyone involved in the trade or handling of hazardous chemicals must ensure compliance with the updated regulations. In particular, businesses dealing with substances that have been revoked or added to the list must take immediate action. For substances that have been added to the list, businesses will need to apply for permits and registrations within 30 days from the date of publication in the Royal Gazette. Companies managing previously listed chemicals should also ensure that they comply with the revised control measures. 

The Ministry of Public Health and the Cosmetics Committee of Thailand have introduced significant regulatory updates affecting the cosmetics industry. The latest announcements, published in the Royal ...

The Ministry of Public Health and the Cosmetics Committee of Thailand have introduced significant regulatory updates affecting the cosmetics industry. The latest announcements, published in the Royal Gazette in January 2025, mandate warning labels for cosmetics containing the preservative Climbazole and expand the list of substances prohibited in cosmetic formulations. These updates aim to enhance consumer safety and ensure compliance with international standards. Businesses involved in the manufacture, import, and sale of cosmetics must adhere to these new regulations within the specified transition period. 

Mandatory Labelling / Warnings for Cosmetics Containing Climbazole 

On January 31, 2025, the Cosmetics Committee published a announcement regarding the labelling of cosmetics containing preservatives (No. 5). This update, issued under the authority of the Cosmetics Act B.E. 2558, was decided during the 4/2567 Committee meeting held on August 26, 2024. 

Under this announcement, the warning label requirements for Climbazole (CAS Number: 38083-17-9) have been revised. Cosmetics containing this preservative must now include the following warning on their labels: 

“Contains Climbazole. Be careful not to get in your eyes. If irritation occurs, stop using the product and consult a doctor or pharmacist.” 

Manufacturers, importers, and contract manufacturers who have prepared labels prior to the enforcement date must comply with this new labelling requirement within 180 days of the effective date of the announcement. 

Expanded List of Prohibited Cosmetic Ingredients 

In a separate announcement, the Ministry of Public Health introduced new restrictions on prohibited substances used in cosmetics. The regulation, published on January 31, 2025, under the authority of the Cosmetics Act B.E. 2015, were enacted following recommendations from the Cosmetics Committee at its 4/2024 meeting on August 26, 2024. 

This update expands the list of prohibited cosmetic ingredients by adding 56 newly prohibited substances. Manufacturers, importers, and contract manufacturers who have received notification certificates for cosmetics containing these newly prohibited ingredients must ensure compliance within 180 days of the effective date of this announcement. 

The expanded prohibited list can be accessed here 

Implementation and Compliance 

Both announcements are now in effect following their publication in the Royal Gazette. The Thai authorities have emphasized that non-compliance will lead to regulatory actions, reinforcing their commitment to consumer safety in the cosmetics industry. Industry stakeholders are urged to review their formulations and labelling practices to ensure alignment with these updated regulations. 

The Department of Industrial Works (DIW) has released an evaluation of Thailand’s Hazardous Substances Act, following an extensive public consultation held between August and September 2024. The rev...

The Department of Industrial Works (DIW) has released an evaluation of Thailand’s Hazardous Substances Act, following an extensive public consultation held between August and September 2024. The review assessed enforcement of the Act from 1992 to 2023 and incorporates feedback from businesses, regulators, and industry experts to address concerns and propose regulatory improvements. The goal is to enhance compliance efficiency, maintain industry competitiveness, and strengthen public safety. 

Key Issues Identified in the Consultation 

1. Licensing and Permit Regulations 

A major point of debate was the suspension and revocation of licenses for hazardous substances. Under the current law, a revoked license cannot be reapplied for until five years have passed. While some stakeholders supported this measure as a deterrent for non-compliance, others argued that it could disproportionately impact businesses. Additionally, there was strong opposition to permitting Type 4 hazardous substances for laboratory analysis under any circumstances. 

2. Clarity in Hazardous Substance Classification 

Stakeholders emphasized the need for a clearer definition of "hazardous substances" under Section 4 of the Act. The existing definition includes terms such as explosive, toxic, corrosive, and irritative, but businesses argued that it is too broad, leading to inconsistent enforcement. A revised classification system was proposed to improve regulatory certainty. 

3. Coordination Among Regulatory Agencies 

The Hazardous Substance Committee, composed of representatives from nine ministries—including Defence, Industry, Public Health, and Environment—was widely seen as a source of bureaucratic delays. Participants suggested including private sector representatives in the decision-making process to enhance efficiency. Businesses also proposed the creation of a centralized Hazardous Substance Information Centre within the Ministry of Industry to improve regulatory coordination and database management. 

4. Compliance Costs and Business Impact 

Companies raised concerns about high compliance costs associated with permits, labelling, storage, and disposal. These expenses increased product prices and operational burdens, prompting some businesses to seek alternatives. Additionally, mandatory insurance requirements were met with opposition, as stakeholders argued they would place unnecessary financial pressure on businesses handling hazardous substances. 

5. Advertising, Labelling, and Enforcement Mechanisms 

A major concern was advertising restrictions. While stakeholders supported bans on misleading claims, many opposed pre-approval requirements for advertisements, suggesting that regulatory agencies should bear the costs of approval rather than businesses. Regarding labelling compliance, some industry representatives expressed concerns about administrative burdens and suggested clearer documentation requirements for corrections. 

6. Enforcement, Penalties, and Exemptions 

Opinions were divided on increasing penalties for non-compliance. While some stakeholders were in favour of stricter penalties, others called for clearer enforcement criteria to prevent arbitrary fines. There was broad agreement for the creation of a subcommittee to handle minor offenses and to ensure consistent enforcement across agencies. Businesses also requested research and analysis exemptions for hazardous substances in transit or possession. Additionally, industry representatives argued that authorities should not impose extra fees for requesting official regulatory opinions before advertising hazardous substances. 

Proposed Amendments to the Hazardous Substances Act 

Based on stakeholder feedback, the following reforms have been proposed: 

• Improved coordination between regulatory agencies to streamline enforcement. 

• Clearer classification of hazardous substances under Section 4. 

• A unified import guarantee letter across agencies to simplify approval processes. 

• Bilingual guidelines (Thai & English) to enhance accessibility for businesses. 

• Updated storage and transport criteria reflecting modern industry standards. 

• Practical transition periods for new regulations to allow businesses to adapt. 

• Incentives for compliant businesses, including expedited approvals and dedicated application channels. 

Next Steps 

The DIW has acknowledged these concerns and has assured stakeholders that future amendments will incorporate these recommendations while aligning with international standards. As Thailand moves forward with regulatory updates, businesses and policymakers anticipate a more balanced, efficient, and fair hazardous substance management system. Draft amendments are expected to be released in the coming months for further public consultation before implementation. 

The full text of the evaluation can be found here. 

Thailand’s Food and Drug Administration (FDA) has implemented new regulations on titanium dioxide (TiO₂) in cosmetics, focusing on its use as a colorant, UV filter, and ingredient in various formu...

Thailand’s Food and Drug Administration (FDA) has implemented new regulations on titanium dioxide (TiO₂) in cosmetics, focusing on its use as a colorant, UV filter, and ingredient in various formulations. Officially published in Thailand’s Royal Gazette on 18 November 2024 and effective 19 November 2024, the updated rules introduce stricter labeling requirements, ingredient classification, and sunscreen regulations, as well as enhanced compliance measures. These changes aim to strengthen consumer safety and align Thailand’s cosmetic standards with international guidelines. 

Key Regulatory Updates 

1. Labelling & Consumer Warnings 

• New labelling requirements differentiate between regular and nano TiO₂. 

• Warnings emphasize that sunscreen alone is not enough for sun protection and advise consumers to follow the directions for use carefully. 

• Manufacturers must include warnings for face powders and aerosol sprays containing TiO₂. 

2. Concentration Limits Based on Product Type 

• Face powders and dust-based products: Max 25% w/w. 

• Hair sprays (compressed gas): 

• 1.4% for general consumer use. 

• 1.1% for professional hairdresser use. 

• TiO₂ should be avoided in products where there is a risk of lung inhalation. 

3. TiO₂ as a Colorant & UV Filter 

• As a colorant: Allowed in all types of cosmetics but must meet particle size restrictions of ≤10μm in powder form. 

• As a UV filter: Permitted up to 25% w/w, including when combined with nano-TiO₂ (total must not exceed 25%). 

4. Stricter Conditions for Nano-TiO₂ 

Nano-TiO₂ is subject to additional safety conditions: 

• Prohibited in inhalation-risk products. 

• Must be at least 99% pure. 

• Crystalline structure must be rutile (anatase ≤5%). 

• Particle properties: 

• D50 ≥ 30 nm (by number). 

• Aspect ratio: 1 to 4.5. 

• Volume-specific surface area ≤ 460 m²/cm³. 

• Photocatalytic activity ≤ 10% compared to an uncoated reference. 

• Coatings allowed if they do not impact UV protection. 

Compliance & Implementation Timeline 

A 180-day transition period has been granted, requiring manufacturers, importers, and contract manufacturers to comply by mid-May 2025. Noncompliance may result in regulatory action. These updates align Thailand’s cosmetic safety standards with international norms, particularly in the regulation of nanomaterials. By differentiating between nano and non-nano forms of titanium dioxide (TiO₂) in line with EU and ASEAN guidelines, the regulations enhance consumer safety through clearer labeling, stricter conditions of use, and controlled concentration limits. This reinforces Thailand’s commitment to high safety standards while ensuring industry compliance with evolving global regulations. 

On January 6, 2025, the Department of Industrial Works (DIW) issued a formal reminder to Category 3 factory operators to comply with the Ministry of Industry’s updated Safety Measures for Chemical M...

On January 6, 2025, the Department of Industrial Works (DIW) issued a formal reminder to Category 3 factory operators to comply with the Ministry of Industry’s updated Safety Measures for Chemical Management in Industrial Plants (No. 2), under the B.E. 2566 regulations. This compliance mandate requires factories to report their hazardous chemical use and storage data annually.  

What are Category 3 Factories? 

Category 3 factories are industrial facilities with machinery over 50 horsepower, more than 50 workers, or significant pollution generation regardless of workforce size or machinery horsepower. 

Reporting Requirements and Deadlines 

Factory operators must submit their hazardous chemical reports to the Ministry of Industry's central data reporting system by April 30, 2025. Reporting is required for all hazardous chemicals in quantities of one tonne or more per year per type. Even facilities that use smaller quantities or no hazardous chemicals are required to report.  

Failure to comply with the reporting requirements may lead to penalties for non-compliance under Section 46 of the Factory Act B.E. 2535, carrying fines of up to 20,000 baht or potential administrative orders, including suspension or closure of the factory. 

Guidelines for Reporting to the Ministry of Industry’s Central Data System 

In order to comply with the reporting requirements, operators are required to: 

• Register with the Ministry of Industry’s i-Industry system, providing their 13-digit business number or national ID/juristic person registration number. 

1. Add their business and factory details. 

2. Submit chemical information via the iSingleForm system. 

A user manual and detailed guidance on hazard classification (GHS codes) and storage classification are available via the Ministry's platform. For further assistance, factory operators can access a FAQ section provided by the Department in the user manual. 

Promoting Compliance Throughout Thailand’ Industrial Sector 

The Department of Industrial Works urges all factory operators to complete the process within the stipulated time to avoid legal or administrative action. Compliance will help maintain safety and legal compliance throughout Thailand's industrial sector. Businesses that have already fulfilled their obligations were thanked for their cooperation. 

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...

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.

On 21 November 2024, the two-year grace period for cosmetic products to comply with the updated ASEAN Cosmetic Directive (ACD) ended. The updates were introduced during the 36th ASEAN Cosmetic Committ...

On 21 November 2024, the two-year grace period for cosmetic products to comply with the updated ASEAN Cosmetic Directive (ACD) ended. The updates were introduced during the 36th ASEAN Cosmetic Committee (ACC) meeting and its related sessions in November 2022. Products that do not meet the updated standards must be withdrawn immediately. The amendments reflect the ASEAN region’s approach to aligning with global safety standards and protecting the health of consumers in its 10 member states. 

Key Updates to the ACD  

• Annex II – List of substances which must not form part of the composition of cosmetic products 

A consolidated list of 37 substances previously banned in the EU, has been added to Annex II of the ACD. These include entries from EU regulations (2019/831, 2019/1966, 2021/850, 2021/1902) that are not currently used in ASEAN countries. Specific compounds such as perboric acid, sodium perborate, boron compounds, octamethylcyclotetrasiloxane (D4), and p-BMHCA have also been included in Annex II. 

• Titanium Dioxide Regulation 

Revised safety criteria for the use of titanium dioxide as a colouring agent (Annex IV) and as a UV filter (Annex VII) have been adopted as per EU standards. 

• Salicylic Acid Regulation 

New limits have been introduced for salicylic acid in the Restricted Substance List (Annexes III) and in the Preservatives list (Annex VI), used in body creams, lotions, and other specific applications. 

Implications for Industry 

Cosmetic manufacturers, traders, and distributors were granted a two-year grace period to reformulate, test and phase out non-compliant products. With the end of this period concluded, compliance is now mandatory, ensuring that products meet updated safety requirements. 

Detailed guidelines for compliance can be found here.