Rate at a Glance
Chapter 28
GST rate guide
Most inorganic chemicals are taxed at 18%. A few items used as fertiliser inputs, such as sulphuric acid and ammonia, are taxed at 5%.
Use this rate in hisabkitab: start free
Rates reflect GST changes effective 22 September 2025. Confirm the rate for your exact product description before filing.
All 10 HSN codes under 2837
| HSN code | Description |
|---|---|
| 28371100 | Cyanides and cyanide oxides: of sodium |
| 28371910 | Cyanides and cyanide oxides: - other: potassium cyanide |
| 28371920 | Cyanides and cyanide oxides: - other: double cyanide of potassium and sodium |
| 28371990 | Cyanides and cyanide oxides: - other: other |
| 28372010 | Complex cyanides: ammonium sulphocyanide |
| 28372020 | Complex cyanides: potassium ferricyanide |
| 28372030 | Complex cyanides: potassium ferrocyanide |
| 28372040 | Complex cyanides: sodium ferrocyanide |
| 28372050 | Complex cyanides: sodium nitroprusside (sodium nitroferricyanide) |
| 28372090 | Complex cyanides: other |
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