| 2710.19.30 | | Lubricating oils and greases, with or without additives: | | | | |
| 2710.99.31 | 00 | Wastes of lubricating oils and greases (whether or not containing additives): | | | | |
| 3811 | | 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: | | | | |
| 3811.21.00 | 00 | Additives for lubricating oils: | | | | |
| 3824.40 | | Prepared additives for cements, mortars or concretes: | | | | |
Harmonized Tariff Schedule of the United States inquiry: t
