U.S. exports of N-Phenethyl-4-Piperidone (NPP) (HS 293337) totaled $32K in December 2025, exported to 1 country.
Last updated: December 2025 dataNPP is a controlled precursor chemical closely monitored under international drug-control frameworks because it is a direct synthetic precursor to fentanyl and related illicit opioids. Imports enter under a single 10-digit line (2933370000), and shipments are subject to DEA scheduling requirements in addition to standard CBP entry procedures. France is the leading documented US supplier, reflecting that country's established pharmaceutical-grade chemical manufacturing base. Importers must maintain rigorous chain-of-custody documentation and DEA registration to receive this substance lawfully.
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Because NPP is a List I chemical under the Controlled Substances Act, importers must hold a valid DEA importer registration and file advance import declarations. Failure to comply can result in seizure and criminal liability. Consult a licensed customs broker and DEA-registered legal counsel before attempting importation.
NPP is classified under a single dedicated tariff line, 2933370000, with no further subdivision. Because the heading is product-specific, misclassification risk is low, but the controlled-substance overlay makes documentation accuracy critical.
Subheading 24 of 27 in heading 2933
Subheading 293337 · $32K of $143.6M
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ImportsExports
Imports
—YoY · free account
Exports
$32KYoY · free account
Low of 1 reported month · imports
Low · free accountFewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through December 2025 · imports 1 of 12 months reported, exports 1 of 12 months reported. Source: U.S. Census Bureau.
Exports · December 2025
destination
Mexico and Saudi Arabia together take 100% of it.
customs district
origin
entry
rate provision · imports
None recorded for this period.