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Singapore Customs

Importing of NA (CWC) Controlled Items

Understand the import process for NA(CWC) controlled chemicals, including the necessary CWC licence, import permits, and Schedule 1 notification requirements.

Last updated 25 February 2026

A valid Chemical Weapons Convention (CWC) licence is mandatory for importing CWC controlled items, and an approved import permit must be obtained for every shipment of scheduled chemicals listed under the CWC. 

Advanced Notification for Schedule 1 Chemicals

If you intend to import Schedule 1 chemicals from CWC Member States:

  • You must notify NA(CWC) before the transfer.

  • You must also notify NA(CWC) after the transfer is completed.

Information Required for Import Permit

If your import is not restricted, you may apply for an import permit through TradeNet. 

Required TradeNet Declaration Fields for CWC-Controlled Chemicals

Field

Information Required

Customs Procedure Code (CPC)

Declare as CWC

Processing Codes (PC1, PC2, PC3)

Leave blank

Licence Number

You must provide the NA(CWC) licence number. If controlled by other Competent Authorities, indicate both. 

Item Description

You must describe the item clearly, including the controlled chemical name (e.g. “photographic solution containing 90% of triethanolamine”). 

HS Code

Product Harmonised System (HS) code

CA/SC Product Code 1

Enter product code listed in the licence

Quantity and Unit

Enter quantity and unit to be imported

CA/SC Code 1 (Concentration/Purity %)

Enter chemical purity as a numerical value with no special character (e.g. 40 for 40%)

Note: The application will be processed within 2 working days once all required documents are submitted.

Restrictions for Imports from Non-Member States

The following restrictions apply to scheduled chemicals imported from non-Member States. 

Import Eligibility and Conditions for CWC Schedule 1, 2, and 3 Chemicals from Non-Member States.

Schedules

Schedule 1

Schedule 2

Schedule 3

Imported from Non-Member States

Prohibited

Allowed (with conditions)

Allowed

Conditions


  • Mixtures containing no more than 1% by weight of a mixture of Schedule 2A/2A* chemicals

  • Mixtures containing no more than 10% by weight of a mixture of Schedule 2B chemicals

  • Consumer goods packaged for retail sale for personal use or packaged for individual use