| 2850.00 | | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849: | | | | |
| 2850.00.10 | 00 | Of tungsten | kg W kg | 5.5% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 45.5% |
| 2852.00 | | Compounds, inorganic or organic, of mercury, excluding amalgams: | | | | |
| 2852.00.10 | 00 | Mercuric oxide, mercuric cyanide, mercuric oxycyanide And mercuric potassium cyanide | kg | Free | | 25% |
| 2853.00.00 | | Other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals | | 2.8% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2853.00.00 | 10 | Gallium arsenide wafers, undoped | kg | | | |
| 2901 | | Acyclic hydrocarbons: | | | | |
| 2901.10 | | Saturated: | | | | |
| 2901.10.30 | 00 | n-Pentane and isopentane | kg | Free | | 25% |
| 2901.10.40 | 00 | Derived in whole or in part from petroleum, shale oil or natural gas | kg | Free | | 25% |
| 2901.21.00 | 00 | Unsaturated: | | | | |
| 2901.23.00 | 00 | Butene (Butylene) and isomers thereof | kg | Free | | Free |
| 2901.24 | | Buta-1,3-diene and isoprene: | | | | |
| 2901.24.20 | 00 | Isoprene: | | | | |
| 2901.29.10 | | Derived in whole or in part from petroleum, shale oil or natural gas | | Free | | 25% |
| 2901.29.10 | 10 | Linear α-olefins (C6-C30), unmixed | kg | | | |
| 2902 | | Cyclic hydrocarbons: | | | | |
| 2902.11.00 | 00 | Cyclanes, cyclenes and cycloterpenes: | | | | |
| 2902.41.00 | 00 | Xylenes: | | | | |
| 2902.44.00 | 00 | Mixed xylene isomers | liters | Free | | Free |
| 2902.50.00 | 00 | Styrene | kg | Free | | 15.4¢/kg + 45% |
| 2902.90.10 | 00 | Pseudocumene | kg | Free | | Free |
| 2902.90.20 | 00 | Acenaphthene, chrysene, cymene, dimethylnaphthalenes, fluoranthene, fluorene, indene, mesitylene, methylanthracene, methylnaphthalene, phenanthrene and pyrene | kg | Free | | Free |
| 2902.90.30 | | Alkylbenzenes and polyalkylbenzenes | | Free | | 15.4¢/kg + 55% |
| 2902.90.40 | 00 | Anthracene; and 1,4-Di-(2-methylstyryl)benzene | kg | Free | | 15.4¢/kg + 68.5% |
Harmonized Tariff Schedule of the United States inquiry: no
