Harmonized Tariff Schedule of the U.S. › Chapter 38 Miscellaneous chemical products
3810.90.20.00Tariff line
Classification path
Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods
3810
Other
Consisting wholly of inorganic substances
3810.90.20.00
Rates of duty
General rate (Column 1)Free
Special—
Column 225%
Unitkg
Printed page 1666
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 3810.90.20 is on L3
Confirmed total 37.5% · max 37.5%Full duty breakdown →