| 28 | | | HS Code for Inorganic chemicals; inorganic or organic compounds of precious metals, radioactive elements, rare land metals or isotope metals |
| 2815 | | HS Code for Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium |
| | 28151200 | Aqueous sodium hydroxide, the liquid caustic soda |
| | 28152000 | Potassium hydroxide (caustic potash) |
| | 28153000 | Sodium peroxide and potassium peroxide |
| 2816 | | HS Code for Hydroxide and peroxide of magnesium; oxides hydroxides and peroxides of strontium or barium |
| | 28161000 | Magnesium hydroxide and magnesium peroxide |
| | 28164000 | Strontium or barium oxides, hydroxides |
| 2817 | | HS Code for Zinc oxide; zinc peroxide |
| | 28170010 | Zinc oxide |
| | 28170090 | Zinc peroxide |
| 2818 | | HS Code for Artificial corundum whether or not chemically defined; aluminium oxide; aluminium hydroxide |
| | 28181010 | Corundum |
| | 28181090 | Other artificial corundum |
| | 28182000 | Alumina, except artificial corundum |
| | 28183000 | Aluminum hydroxide |
| 2819 | | HS Code for Chromium oxides and hydroxides |
| | 28191000 | Chromium trioxide |
| | 28199000 | Other chromium oxides and hydroxides |
| 2820 | | HS Code for Manganese oxides |
| | 28201000 | Manganese dioxide |
| | 28209000 | Other manganese oxides |
| 2821 | | HS Code for Iron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as fe2o3 |
| | 28211000 | Iron oxides and hydroxides |
| | 28212000 | Earth colors |
| 2822 | | HS Code for Cobalt oxides and hydroxides; commercial cobalt oxides |
| | 28220010 | Cobalt oxide |
| | 28220090 | Other cobalt oxides and hydroxides |
| 2823 | | HS Code for Titanium oxides |
| | 28230000 | Titanium oxide |
| 2824 | | HS Code for Lead oxides; red lead and orange lead |
| | 28241000 | Litharge (yellow lead, huang dan) |
| | 28249010 | Red lead and orange lead (tetroxide (iii) lead) |
| | 28249090 | Other lead oxides |
Harmonized Tariff Schedule of China inquiry: textile
