| 28.14      |            | Ammonia, anhydrous or in aqueous solution | 
| 2814.10    | 000        | Anhydrous ammonia | 
| 28.15      |            | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium | 
| 28.15      |            | Sodium hydroxide (caustic soda) : | 
| 2815.12    | 000        | In aqueous solution (soda lye or liquid soda) | 
| 2815.20    | 000        | Potassium hydroxide (caustic potash) | 
| 28.16      |            | Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium | 
| 2816.10    | 000        | Hydroxide and peroxide of magnesium | 
| 2816.40    | 000        | Oxides, hydroxides and peroxides, of strontium or barium | 
| 28.18      |            | Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide | 
| 2818.10    |            | Artificial corundum, whether or not chemically defined | 
| 2818.30    | 000        | Aluminium hydroxide | 
| 28.19      |            | Chromium oxides and hydroxides | 
| 28.21      |            | Iron oxides and hydroxides; earth colours containing 70 % or more by weight of combined iron evaluated as Fe2O3 | 
| 2821.10    |            | Iron oxides and hydroxides | 
| 2821.10    | 090        | - Iron hydroxides | 
| 2822.00    |            | Cobalt oxides and hydroxides; commercial cobalt oxides | 
| 2822.00    | 090        | - Cobalt hydroxides | 
| 28.25      |            | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides | 
| 2825.10    |            | Hydrazine and hydroxylamine and their inorganic salts | 
| 2825.10    | 030        | 1 Hydrazine anhydride | 
| 2825.10    | 050        | - Hydrazine and its inorganic salts | 
| 2825.10    | 090        | -Hydroxylamine and its inorganic salts |