Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2933.29.20.00Tariff line
Classification path
Heterocyclic compounds with nitrogen hetero-atom(s) only
2933
Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure
Other
Aromatic or modified aromatic
Other
Drugs
2933.29.20.00
Rates of duty
General rate (Column 1)6%
SpecialFree (A, AU, BH, CL, CO, D, E, IL, JO, K, KR, MA, OM, P, PA, PE, S, SG)
Column 215.4¢/kg + 51%
Unitkg
Free (A, AU, BH, CL, CO, D, E, IL, JO, K, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1546
Measure flags
for origin CN, entry date 2026-10-25 · base rate 6%
- Section 301 forced-labor tariff (12.5%)9903.05.31Conditional+12.5%China: Column 1 rate + 12.5% additional
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 2933.29.20 is on L3
- 232 patented pharmaceuticals9903.04.60Conditionalcapped at 100%General (all other countries) | Pharmaceutical articles (chapter 29): patented finished drugs / APIs / key starting materials; patented or generic status is determined by the article, not by t
- PGAFDA FD2 · requiredEPA EP7
Confirmed total 31% · max 125%Full duty breakdown →