| 2804.61.00 | 00 | Containing by weight not less than 99.99 percent of silicon | kg | Free | | 25% |
| 2804.69 | | Other: | | | | |
| 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% |
| 2804.69.50 | 00 | Other | kg Si kg | 5.5% | Free (A+,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 45% |
| 2804.70.00 | 00 | Phosphorus | kg | Free | | 17.6¢/kg |
| 2804.80.00 | 00 | Arsenic | kg | Free | | 13.2¢/kg |
| 2804.90.00 | 00 | Selenium | kg | Free | | Free |
| 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: | | | | |
| 2805.11.00 | 00 | Sodium | kg | 5.3% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 25% |
| 2805.12.00 | 00 | Calcium | kg | 3% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 25% |
| 2805.19 | | Other: | | | | |
| 2805.19.10 | 00 | Strontium | kg | 3.7% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2805.19.20 | 00 | Barium | kg | Free | | 25% |
| 2805.19.90 | 00 | Other | kg | 5.5% | Free (A+,AU,BH, CA,CL,D,E,IL,J, JO,MA,MX, P,SG) | 25% |
| 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% |
| 2805.40.00 | 00 | Mercury | kg | 1.7% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 5.7% |
| 2806 | | II. INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NONMETALS | | | | |
| 2806 | | Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid: | | | | |
| 2806.10.00 | 00 | Hydrogen chloride (Hydrochloric acid) | t | Free | | Free |
| 2806.20.00 | 00 | Chlorosulfuric acid | kg | 4.2% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 25% |
| 2807.00.00 | 00 | Sulfuric acid; oleum | t | Free | | Free |
| 2808.00.00 | | Nitric acid; sulfonitric acids | | Free | | Free |
| 2808.00.00 | 10 | Nitric acid | kg | | | |
| 2808.00.00 | 20 | Sulfonitric acids | kg | | | |
Harmonized Tariff Schedule of the United States inquiry: no
