| 2815.20.00 | | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Potassium hydroxide (caustic potash) | KGM | Free | CCCT, LDCT |
| 2815.30.00 | 00 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Peroxides of sodium or potassium | KGM | Free | CCCT, LDCT |
| 28.15 | | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. | | | |
| 2815.11.00 | 00 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Sodium hydroxide (caustic soda): - Solid | KGM | Free | CCCT, LDCT |
| 2815.20.00 | 10 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Potassium hydroxide (caustic potash) - Solid | KGM | Free | CCCT, LDCT |
| 2519.90.00 | 13 | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure. - Magnesium oxide, not less than 94% pure: - Caustic burned | KGM | | |
| 2815.12.00 | 00 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Sodium hydroxide (caustic soda): - In aqueous solution (soda lye or liquid soda) | KNS | Free | CCCT, LDCT |
| 2815.20.00 | 20 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Potassium hydroxide (caustic potash) - In aqueous solution | KNS | Free | CCCT, LDCT |