Chapter 28 — Inorganic Chemicals; Compounds of Precious Metals, Rare-Earth Metals
10 HSN codes with GST rates in this chapter, most commonly 5%. 1 code carry more than one rate depending on the specific item or condition — check the entry before filing.
| IGST rate | Codes |
|---|---|
| 5% | 10 |
| 18% | 1 |
| HSN Code | Description | IGST |
|---|---|---|
| 28 | Thorium oxalate, Enriched KBF4 (enriched potassium fluroborate), Enriched elemental boron, Nuclear fuel | 5% / 5% / 5% / 18% |
| 28044010 | Medical grade oxygen | 5% |
| 280511 | Nuclear grade sodium | 5% |
| 2807 | Sulphuric Acid | 5% |
| 2808 | Nitric acid | 5% |
| 2809 | Fertilizer grade phosphoric acid | 5% |
| 2814 | Ammonia | 5% |
| 2845 | Heavy water and other nuclear fuels | 5% |
| 2847 | Medicinal grade hydrogen peroxide | 5% |
| 2853 | Compressed air | 5% |