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Central Narcotics Bureau (CNB)

Controlled substances

Learn about controlled precursor substances regulated under Singapore's Misuse of Drugs Act, and guidelines on the importation of poppy seeds.

Last updated 20 November 2025

Controlled substances as specified under the Third Schedule of the Misuse of Drugs Act (MDA)

List of controlled precursor substances under the MDA, detailing chemicals that require CNB approval for import, export, or transshipment.

Importation of food products containing poppy seeds

Learn CNB’s requirements for importing poppy seed food products.