| 2844.20.00 | 10 | Uranium compounds: | | | | |
| 2844.30 | | Uranium depleted in U235 and its compounds; thorium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium depleted in U235, thorium, or compounds of these products: | | | | |
| 2844.30.10 | 00 | Thorium compounds | kg | 5.5% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 35% |
| 2844.30.20 | | Uranium compounds | | Free | | Free |
| 2844.30.50 | 10 | Uranium metal | kg | | | |
| 2844.40.00 | | Radioactive elements and isotopes and com- pounds other than those of subheadings 2844.10, 2844.20, and 2844.30; alloys, dis- persions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds; radioactive residues | | Free | | Free |
| 2844.40.00 | 10 | Elements, isotopes and compounds with cobalt-60 radioactivity only | GBq | | | |
| 2844.40.00 | 20 | Other elements, isotopes and compounds | MBq | | | |
| 2844.50.00 | 00 | Spent (irradiated) fuel elements (cartridges) of nuclear reactors | kg | Free | | Free |
| 2845 | | Isotopes other than those of heading 2844; com- pounds, inorganic or organic, of such isotopes, whether or not chemically defined: | | | | |
| 2846 | | Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals: | | | | |
| 2846.10.00 | 00 | Cerium compounds | kg | 5.5% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 35% |
| 2846.90.40 | 00 | Yttrium bearing materials and compounds containing by weight more than 19 percent but less than 85 percent yttrium oxide equivalent | kg | Free | | 25% |
| 2847.00.00 | 00 | Hydrogen peroxide, whether or not solidified with urea | kg | 3.7% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2848.00 | | Phosphides, whether or not chemically defined, excluding ferrophosphorus: | | | | |
| 2848.00.10 | 00 | Of copper (phosphor copper), containing more than 15 percent by weight of phosphorus | kg | 2.6% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 32.5% |
| 2848.00.90 | 00 | Of other metals or of nonmetals | kg | Free | | 25% |
| 2849 | | Carbides, whether or not chemically defined: | | | | |
| 2849.20 | | Of silicon: | | | | |
| 2849.20.20 | 00 | In grains, or ground, pulverized or refined | kg | 0.5% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 1.6% |
| 2849.90.10 | 00 | Of boron | kg | 3.7% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2849.90.30 | 00 | Of tungsten | kg W kg | 5.5% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 55.5% |
| 2850.00 | | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849: | | | | |
| 2850.00.07 | 00 | Of titanium | kg | 4.9% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 30% |
| 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% |
Harmonized Tariff Schedule of the United States inquiry: 3920590000
