Harmonized Tariff Schedule of the U.S. › Chapter 29 Organic chemicals
2933.69.50.00Tariff line
Classification path
Heterocyclic compounds with nitrogen hetero-atom(s) only
2933
Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure
Other
Hexamethylenetetramine
2933.69.50.00
Rates of duty
General rate (Column 1)6.3%
SpecialFree (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 258%
Unitkg
Free (A, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1555
Measure flags
for origin CN, entry date 2026-10-25 · base rate 6.3%
- 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 2933.69.50 is on L3
- AD/CVD: 2 orders in placeConditional—Cash deposits follow the company-specific rate (ACE case module). Coverage depends on each order's scope. The table below lists case numbers, status and the all-others rate. The all-others deposit rate is counted in the maximum exposure, not in the confirmed total.
- AD/CVD 2 casesConditionalAD 394.65% + CVD 420.73%A570180 / C570181
- PGAEPA EP7
Confirmed total 43.8% · max 859.18%Full duty breakdown →