Harmonized Tariff Schedule of the U.S. › Chapter 38 Miscellaneous chemical products
3811.21.00.00Tariff 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
Additives for lubricating oils
Containing petroleum oils or oils obtained from bituminous minerals
3811.21.00.00
Rates of duty
General rate (Column 1)6.5%
SpecialFree (A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Column 260%
Unitkg
Free (A+, AU, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG)
Printed page 1666
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 List 2 (9903.88.02)9903.88.02Applies+25%8-digit subheading 3811.21.00 is on L2
- 232 steel / aluminum / copper & derivatives (removed from scope)—N/A—3811.21.00 was on the 232 list and has been deleted from note 16 (2026-04-06); Additives for lubricating oils containing petroleum oils or oils obtained from bituminous minerals
- PGAEPA EP7
Confirmed total 44% · max 44%Full duty breakdown →