Harmonized Tariff Schedule of the U.S. › Chapter 38 Miscellaneous chemical products
3811.11.10.00Tariff line
Classification path
Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils
3811
Antiknock preparations
Based on lead compounds
Based on tetraethyl lead or on a mixture of tetraethyl lead and tetramethyl lead
3811.11.10.00
Rates of duty
General rate (Column 1)Free
Special—
Column 230%
Unitkg
Printed page 1666
Measure flags
for origin CN, entry date 2026-10-25 · 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 3811.11.10 is on L3
Confirmed total 37.5% · max 37.5%Full duty breakdown →