| 2830.10 | 000 | Sodium sulphides |
| 28.31 | | Dithionites and sulphoxylates |
| 2831.10 | 000 | Of sodium |
| 2832.10 | 000 | Sodium sulphites |
| 28.33 | | Sodium sulphates : |
| 2833.11 | 000 | Disodium sulphate |
| 2834.29 | | 1 Calcium nitrate and Barium nitrate |
| 28.35 | | Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined |
| 2835.10 | 000 | Phosphinates (hypophosphites) and phosphonates (phosphites) |
| 2835.22 | 000 | Of mono- or disodium |
| 2835.25 | 000 | Calcium hydrogenorthophosphate (“dicalcium phosphate”) |
| 2835.29 | 010 | - Of trisodium |
| 2835.31 | 000 | Sodium triphosphate (sodium tripolyphosphate) |
| 2836.20 | | Disodium carbonate |
| 2836.20 | 100 | 1 Soda ash |
| 2836.30 | 000 | Sodium hydrogencarbonate (sodium bicarbonate) |
| 28.37 | | Cyanides, cyanide oxides and complex cyanides |
| 28.37 | | Cyanides and cyanide oxides : |
| 2837.11 | 000 | Of sodium |
| 2837.20 | 000 | Complex cyanides |
| 28.39 | | Of sodium : |
| 2839.11 | 000 | Sodium metasilicates |
| 28.40 | | Disodium tetraborate (refined borax) : |
Harmonized Tariff Schedule of Japans inquiry: 51412019l307764784
