Harmonized Tariff Schedule of the U.S. › Chapter 38 Miscellaneous chemical products
3815.90.50.00Tariff line
Classification path
Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included
3815
Other
Other
3815.90.50.00
Rates of duty
General rate (Column 1)5%
SpecialFree (A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 225%
Unitkg
Free (A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1669
Measure flags
for origin CN, entry date 2026-10-26 · base rate 5%
- 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 3815.90.50 is on L3
- AD/CVD: 0 orders in place, 2 investigationsInfo—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 casesConditionalA570245 / C570246
- PGAEPA EP7
Confirmed total 42.5% · max 42.5%Full duty breakdown →