| 2804.61.00 | 00 | Containing by weight not less than 99.99 percent of silicon | kg | Free | | 25% |
| 2804.69.10 | 00 | Containing by weight less than 99.99 percent but not less than 99 percent of silicon | kg Si kg | 5.3% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 21% |
| 2805 | | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury: | | | | |
| 2805.11.00 | 00 | Alkali or alkaline-earth metals: | | | | |
| 2805.30.00 | 00 | Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed | kg | 5% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 31.3% |
| 2806 | | II. INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NONMETALS | | | | |
| 2809.20.00 | 10 | Containing less than 65 percent available diphosphorus pentaoxide (P2O5) equivalents | t | | | |
| 2811 | | Other inorganic acids and other inorganic oxygen compounds of nonmetals: | | | | |
| 2811.11.00 | 00 | Other inorganic acids: | | | | |
| 2811.21.00 | 00 | Other inorganic oxygen compounds of nonmetals: | | | | |
| 2814 | | IV. INORGANIC BASES AND OXIDES, HYDROXIDES AND PEROXIDES OF METALS | | | | |
| 2814 | | Ammonia, anhydrous or in aqueous solution: | | | | |
| 2814.20.00 | 00 | Ammonia in aqueous solution | t NH3 t | Free | | Free |
| 2815.12.00 | 00 | In aqueous solution (Soda lye or liquid soda) | kg NaOH kg | Free | | 1.1￠/kg |
| 2815.20.00 | 50 | In solid form | kg | | | |
| 2817.00.00 | 00 | Zinc oxide; zinc peroxide | kg | Free | | 5.5% |
| 2818 | | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide: | | | | |
| 2818.10.20 | | In grains, or ground, pulverized or refined | | 1.3% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 4.1% |
| 2818.10.20 | 10 | White, pink or ruby, containing more than 97.5 percent by weight of aluminum oxide | kg | | | |
| 2818.20.00 | 00 | Aluminum oxide, other than artificial corundum | kg | Free | | 1.1￠/kg |
| 2818.30.00 | 00 | Aluminum hydroxide | kg | Free | | 1.1￠/kg |
| 2821 | | Iron oxides and hydroxides; earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3: | | | | |
| 2825 | | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides: | | | | |
| 2825.10.00 | 00 | Hydrazine and hydroxylamine and their inorganic salts | kg | 3.7% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2826 | | V. SALTS AND PEROXYSALTS, OF INORGANIC ACIDS AND METALS | | | | |
