Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2933.59.22.00Tariff line
Classification path
Heterocyclic compounds with nitrogen hetero-atom(s) only
2933
Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure
Other
Drugs
Aromatic or modified aromatic
Anti-infective agents
Nicarbazin; and Trimethoprim
2933.59.22.00
Rates of duty
General rate (Column 1)6.5%
SpecialFree (A+, AU, BH, CL, CO, D, E, IL, JO, K, KR, MA, OM, P, PA, PE, S, SG)
Column 215.4¢/kg + 46%
Unitkg
Free (A+, AU, BH, CL, CO, D, E, IL, JO, K, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1554
Measure flags
for origin CN, entry date 2026-10-26 · base rate 6.5%
- Section 301 forced-labor tariff (12.5%)9903.05.31Applies+12.5%China: Column 1 rate + 12.5% additional
- China 301: not on any listN/A—8-digit subheading 2933.59.22 is not on Lists 1–4B or the four-year-review lists
- PGAFDA FD2 · requiredEPA EP5EPA EP7
Confirmed total 19% · max 19%Full duty breakdown →