From Chapter 28: Chapter 28
| HTS Code | Description | General Duty |
|---|---|---|
| 2833111000 | Disodium sulfate Salt cake | Free |
| 2833115000 | Disodium sulfate Other | 0.4% |
| 2833115010 | Other Anhydrous | 0.4% |
| 2833115050 | Other | 0.4% |
| 2833190000 | Sodium sulfates Other | Free |
| 2833210000 | Other sulfates Of magnesium | 3.7% |
| 2833220000 | Other sulfates Of aluminum | Free |
| 2833240000 | Other sulfates Of nickel | 3.2% |
| 2833250000 | Other sulfates Of copper | 1.4% |
| 2833270000 | Other sulfates Of barium | 0.6% |
| 2833291000 | Other Of cobalt | 1.4% |
| 2833292000 | Other Of iron | Free |
| 2833293000 | Other Of vanadium | 5.5% |
| 2833294000 | Other Of chromium | 3.7% |
| 2833294500 | Other Of zinc | 1.6% |
| 2833295100 | Other Other | 3.7% |
| 2833295110 | Other Of manganese | 3.7% |
| 2833295190 | Other | 3.7% |
| 2833300000 | Sulfates; alums; peroxosulfates (persulfates) Alums | 1.6% |
| 2833402000 | Peroxosulfates (persulfates) Of sodium | 3.7% |
| 2833406000 | Peroxosulfates (persulfates) Other | 3.1% |
| 2833406010 | Other Of potassium | 3.1% |
| 2833406020 | Other Of ammonium | 3.1% |
| 2833406050 | Other | 3.1% |