28 | | | HS Code for Inorganic chemicals; inorganic or organic compounds of precious metals, radioactive elements, rare land metals or isotope metals |
| 2804 | | HS Code for Hydrogen rare gases and other non-metals |
| | 28046120 | Electronic industry diameter <7.5cm silicon rods |
| | 28046190 | Other silicon content> 99.99% of silicon |
| | 28046900 | Other silicon content <99.99% of silicon |
| | 28047010 | Phosphorus (white phosphorus) |
| | 28047090 | Other phosphorus |
| | 28048000 | Arsenic |
| | 28049010 | Selenium doped crystal rod for the electronics industry |
| | 28049090 | Other selenium |
| 2805 | | HS Code for Alkali or alkaline-earth metals; rare-earth metals scandium and yttrium whether or not intermixed or interalloyed; mercury |
| | 28051100 | Sodium |
| | 28051200 | Calcium |
| | 28051910 | Lithium |
| | 28051990 | Other alkali and alkaline earth metals |
| | 28053011 | Neodymium |
| | 28053012 | Dysprosium |
| | 28053013 | Terbium |
| | 28053014 | Lanthanum |
| | 28053015 | Cerium |
| | 28053016 | Metal praseodymium |
| | 28053017 | Yttrium |
| | 28053019 | Other rare earth metals |
| | 28053021 | Other battery grade rare earth metals, scandium and yttrium |
| | 28053029 | Other rare earth metals, scandium and yttrium |
| | 28054000 | Hg |