On January 26, 2026, the National Environment Agency (NEA) of Singapore officially announced a phase-out schedule for three substances: Chlorpyrifos, MCCPs, and LC-PFCAs.
As the manufacture, import, and export of these substances and products containing them will be fully prohibited starting December 16, 2026, we kindly advise professionals handling export components to Singapore to conduct a proactive preliminary review.
Overview
Singapore is a Party to the Stockholm Convention, which aims to eliminate or restrict the production and use of persistent organic pollutants (POPs). At the 12th meeting of the Conference of the Parties (COP-12) held in April and May 2025, the following three substances were newly listed for elimination.
Since amendments to the Annexes of the Stockholm Convention enter into force one year after the date of notification, Singapore has accordingly confirmed the implementation of domestic regulations effective December 16, 2026.
Key takeaways
Three Newly Regulated Substances
Category
| Substance
| Note
|
|---|
(i) | Chlorpyrifos | Insecticide / herbicide class |
(ii) | MCCPs | Carbon chain lengths from C14 to C17 + chlorination degree of 45% or more (by weight) |
(iii) | LC-PFCAs | Carbon chain lengths from C9 to C21, their salts, and related compounds |
*MCCPs are only subject to this regulation if their chlorination degree is 45% or higher by weight. Products with a lower degree of chlorination are excluded from this notification.
Effective Date and Scope of Application
Starting December 16, 2026, the following activities will be prohibited:
Manufacture, import, and export of the three substances (Chlorpyrifos, MCCPs, LC-PFCAs).
Manufacture, import, and export of products containing these substances.
However, the depletion of stocks for substances and products imported prior to the effective date is permitted. Please note that new imports after the effective date will not be allowed.
Additionally, there are specific exemptions for certain uses recognized under the Stockholm Convention. The Singapore NEA is currently reviewing their relevance to domestic industries. Exemptions applicable to Singapore will be announced separately at a later date.
HS Codes and Product Codes
For customs clearance management, the NEA has provided a list of affected HS Codes and Product Codes in its annex. When declaring imports and exports, the appropriate codes should be used for TradeNet® permit applications.
Please be aware that all applications are subject to approval by the Chemical Control and Management Department (CCMD).
Substance
| HS Code
| Product Code
|
|---|
Chlorpyrifos | 38089319, 38089311, 38089199, 29333990, and 3 others | PCDCHL119 |
MCCPs | 38249999, 29031990, 32081019, 32081090, etc. | PCDMCP112 |
LC-PFCAs | 29159090, 38229090 | PCDPCA111~PCDPCA124 |
*The comprehensive list of HS Codes and Product Codes can be found in the annex of the original Singapore NEA Circular.
Conclusion
In alignment with the decisions made at COP-12 of the Stockholm Convention, the Singapore NEA will fully ban the manufacture, import, and export of Chlorpyrifos, MCCPs, and LC-PFCAs as of December 16, 2026.
While the depletion of stock is permitted for items imported before the effective date, new transactions will be prohibited thereafter. Therefore, we encourage you to identify any affected components within your Singapore-bound supply chains early on.
In particular, MCCPs and LC-PFCA-related substances are widely used as plasticizers, flame retardants, and lubricant additives in automotive and electrical/electronic components, making a proactive preliminary assessment highly recommended.
MDSKorea will continue to do our best to provide you with valuable and timely information.
Thank you.
[Glossary]
Term
| Description
|
|---|
Chlorpyrifos | Organophosphate compounds used primarily as agricultural insecticides and herbicides |
MCCPs | Medium-chain chlorinated paraffins (used as plasticizers and flame retardants) |
LC-PFCAs | Long-chain perfluorocarboxylic acids (a group of PFAS-related substances) |
Stockholm Convention | An international environmental treaty aimed at globally eliminating or restricting the production and use of persistent organic pollutants (POPs) |
POPs | Persistent organic pollutants (chemical substances characterized by high environmental persistence and bioaccumulation) |
Annex A | The list of substances targeted for elimination under the Stockholm Convention |
NEA | The National Environment Agency of Singapore |
COP | The governing and decision-making body of the Stockholm Convention (responsible for key decisions, including amendments to the annexes) |
Depositary Notification | An official document issued by the Secretariat to formally notify the Parties of amendments to the annexes |
TradeNet® | Singapore's national electronic trade declaration and clearance system |
HS Code | The international harmonized commodity description and coding system |
[References]
On January 26, 2026, the National Environment Agency (NEA) of Singapore officially announced a phase-out schedule for three substances: Chlorpyrifos, MCCPs, and LC-PFCAs.
As the manufacture, import, and export of these substances and products containing them will be fully prohibited starting December 16, 2026, we kindly advise professionals handling export components to Singapore to conduct a proactive preliminary review.
Overview
Singapore is a Party to the Stockholm Convention, which aims to eliminate or restrict the production and use of persistent organic pollutants (POPs). At the 12th meeting of the Conference of the Parties (COP-12) held in April and May 2025, the following three substances were newly listed for elimination.
Since amendments to the Annexes of the Stockholm Convention enter into force one year after the date of notification, Singapore has accordingly confirmed the implementation of domestic regulations effective December 16, 2026.
Key takeaways
Three Newly Regulated Substances
(i)
Chlorpyrifos
Insecticide / herbicide class
(ii)
MCCPs
Carbon chain lengths from C14 to C17 + chlorination degree of 45% or more (by weight)
(iii)
LC-PFCAs
Carbon chain lengths from C9 to C21, their salts, and related compounds
*MCCPs are only subject to this regulation if their chlorination degree is 45% or higher by weight. Products with a lower degree of chlorination are excluded from this notification.
Effective Date and Scope of Application
Starting December 16, 2026, the following activities will be prohibited:
Manufacture, import, and export of the three substances (Chlorpyrifos, MCCPs, LC-PFCAs).
Manufacture, import, and export of products containing these substances.
However, the depletion of stocks for substances and products imported prior to the effective date is permitted. Please note that new imports after the effective date will not be allowed.
Additionally, there are specific exemptions for certain uses recognized under the Stockholm Convention. The Singapore NEA is currently reviewing their relevance to domestic industries. Exemptions applicable to Singapore will be announced separately at a later date.
HS Codes and Product Codes
For customs clearance management, the NEA has provided a list of affected HS Codes and Product Codes in its annex. When declaring imports and exports, the appropriate codes should be used for TradeNet® permit applications.
Please be aware that all applications are subject to approval by the Chemical Control and Management Department (CCMD).
HS Codes and Product Codes (Excerpt)
Chlorpyrifos
38089319, 38089311, 38089199, 29333990, and 3 others
PCDCHL119
MCCPs
38249999, 29031990, 32081019, 32081090, etc.
PCDMCP112
LC-PFCAs
29159090, 38229090
PCDPCA111~PCDPCA124
*The comprehensive list of HS Codes and Product Codes can be found in the annex of the original Singapore NEA Circular.
Conclusion
In alignment with the decisions made at COP-12 of the Stockholm Convention, the Singapore NEA will fully ban the manufacture, import, and export of Chlorpyrifos, MCCPs, and LC-PFCAs as of December 16, 2026.
While the depletion of stock is permitted for items imported before the effective date, new transactions will be prohibited thereafter. Therefore, we encourage you to identify any affected components within your Singapore-bound supply chains early on.
In particular, MCCPs and LC-PFCA-related substances are widely used as plasticizers, flame retardants, and lubricant additives in automotive and electrical/electronic components, making a proactive preliminary assessment highly recommended.
MDSKorea will continue to do our best to provide you with valuable and timely information.
Thank you.
[Glossary]
Chlorpyrifos
Organophosphate compounds used primarily as agricultural insecticides and herbicides
MCCPs
Medium-chain chlorinated paraffins (used as plasticizers and flame retardants)
LC-PFCAs
Long-chain perfluorocarboxylic acids (a group of PFAS-related substances)
Stockholm Convention
An international environmental treaty aimed at globally eliminating or restricting the production and use of persistent organic pollutants (POPs)
POPs
Persistent organic pollutants (chemical substances characterized by high environmental persistence and bioaccumulation)
Annex A
The list of substances targeted for elimination under the Stockholm Convention
NEA
The National Environment Agency of Singapore
COP
The governing and decision-making body of the Stockholm Convention (responsible for key decisions, including amendments to the annexes)
Depositary Notification
An official document issued by the Secretariat to formally notify the Parties of amendments to the annexes
TradeNet®
Singapore's national electronic trade declaration and clearance system
HS Code
The international harmonized commodity description and coding system
[References]
NEA Circular NEA/HS/6.6/SC02 (2026-01-26)
STOCKHOLM CONVENTION ON PERSISTENT ORGANIC POLLUTANTS STOCKHOLM, 22 MAY 2001
Management of Hazardous Substances