About HSN Code 283911
HSN Code 283911 covers Sodium Metasilicates and attracts a GST rate of 18%. For intra-state supplies, this is split as 9% CGST + 9% SGST. For inter-state supplies, 18% IGST is charged. This code falls under the Chemicals & Materials sector (Paint, fertilizer, rubber, plastics, pharma).
How to Use HSN Code 283911 on GST Invoices
- Include the HSN code 283911 on every GST invoice for sodium metasilicates
- Businesses with turnover above ₹5 crore must use 6-digit HSN codes
- Turnover between ₹1.5–5 crore: 4-digit codes are sufficient
- The HSN code must match the product/service description on your invoice
- Incorrect HSN codes can lead to GST notices and ITC mismatches
Related HSN Codes
- 28391100 — Sodium Metasilicates
- 283919 — Other
- 28391900 — Other
- 28392000 — Silicates; Commercial Alkali Metal Silicates - of Potassium
- 283990 — Other :
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Last verified: 2026-06-26 · Source: CBIC Master Tariff