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US HTS CODE | Harmonized Tariff Schedule HS code & Tariffs Search Service (2025 HTS Revision 19 (08/18/2025))
| HTS Code | 3911903500 | 3811 |
| Article Description | 1,1'-Bis(methylenedi-4,1-phenylene)- 1H-pyrrole-2,5-dione, copolymer with 4,4'-methylenebis(benzeneamine); and Hydrocarbon novolac cyanate ester | 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: Antiknock preparations: |
| Quota of Quantity | -- | -- |
| Unit of Quantity | [kg] | [] |
| Rates of Duty (1-General) | Free | -- |
| Rates of Duty (1-Special) | -- | -- |
| Rates of Duty (2-Cuba and North Korea) | 15.4¢/kg + 45% | -- |
| Footnotes | [{columns=[general], value=See 9903.88.02., type=endnote}] | [] |
| Additional Duty | -- | -- |
| Additional Duty(products of China) | -- | -- |