Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2933.31.00.00Tariff line
Classification path
Heterocyclic compounds with nitrogen hetero-atom(s) only
2933
Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure
Pyridine and its salts
2933.31.00.00
Rates of duty
General rate (Column 1)Free
Special—
Column 2Free
Unitkg
Printed page 1547
Measure flags
for origin CN, entry date 2026-10-26 · base rate Free
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 2933.31.00 is on L3
- PGAEPA EP7
Confirmed total 37.5% · max 37.5%Full duty breakdown →