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HSChapter 29
U.S. imports of pyridine and its salts (HS 293331) totaled $1.2M in April 2026, traded with 7 countries.
Importers of Pyridine and Its Salts paid $30K in duties in April 2026 — an effective duty rate of 10% on $302K in dutiable value, based on actual customs collections rather than the published tariff schedule. Pyridine and Its Salts imports of $1.2M in April 2026 ran 40% above the year-to-date monthly average of $868K.
Last updated: April 2026 dataPyridine is a foundational nitrogen-containing heterocyclic solvent and chemical building block widely used in agrochemical synthesis, pharmaceutical manufacturing, and as a denaturant for alcohol. Classified under a single 10-digit line (2933310000), it enters the US primarily from India and China, with Canada also a notable source. Chinese-origin pyridine may be subject to Section 301 tariffs, making origin documentation and supplier diversification a practical concern for procurement teams. Purity specifications and intended end-use — solvent-grade versus pharmaceutical-grade — can affect downstream regulatory requirements even though classification remains at a single tariff line.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Pyridine is a regulated chemical under DEA controls when used in certain contexts, and shipments may require DEA import permits depending on intended use and quantity. Additionally, EPA TSCA compliance documentation may be required for industrial-use imports. Importers should confirm DEA and EPA obligations with a licensed customs broker before shipment.
Both grades classify under the same HTS line (2933310000), so the tariff treatment is identical. However, pharmaceutical-grade pyridine must meet pharmacopeial purity standards and may trigger FDA scrutiny if imported as a drug intermediate. Solvent-grade material is subject to standard TSCA review. The grade distinction matters primarily for downstream compliance, not for customs classification.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2933310000 | PYRIDINE AND ITS SALTS | $1.2M | 10.00% | $30K |
PYRIDINE AND ITS SALTS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2933310000 | PYRIDINE AND ITS SALTS | $84K |
PYRIDINE AND ITS SALTS
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
COMP WITH PYRIMIDINE OR PIPERAZINE RING, NESOI
HS 293359
ANTIBIOTICS, NESOI
HS 294190
| State | Imports | Exports | Balance |
|---|---|---|---|
| South Carolina | $846K | -- | -$846K |
| Texas | $150K | $3K | -$146K |
| Pennsylvania | $145K | -- | -$145K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| JFK INTERNATIONAL AIRPORT, NY | $846K | -- | -$846K |
| NEWARK, NJ | $145K | $43K | -$102K |
| HOUSTON, TX | $150K | -- | -$150K |