HSN code 810991 is
a 6-digit Harmonized System of Nomenclature (HSN) code used in India for GST classification.
It covers: Containing less than 1 part hafnium to 500 parts zirconium by weight.
This code falls under Chapter 81
(Other Base Metals) of the Indian GST tariff.
The applicable GST rate is 18%
(CGST 9% + SGST 9% for intra-state, or IGST 18% for inter-state transactions).
Who needs this code? Any GST-registered business supplying
goods classified under this
HSN code must quote it on their tax invoices.
Turnover above ₹5 crore requires 6-digit codes;
exporters must use 8-digit HSN codes.
Frequently Asked Questions
What is HSN code 810991?
HSN 810991 refers to: Containing less than 1 part hafnium to 500 parts zirconium by weight. It belongs to Chapter 81 (Other Base Metals) of the GST tariff.
What is the GST rate for HSN code 810991?
The GST rate for HSN code 810991 is 18% — CGST 9% + SGST 9% for intra-state, or IGST 18% for inter-state supply.
Is HSN code 810991 mandatory on invoices?
Yes. If your business supplies goods/services under this code, you must quote the HSN/SAC code on GST invoices. Businesses with turnover below ₹5 crore use 4-digit HSN; above ₹5 crore use 6-digit; exporters use 8-digit.
What chapter does HSN code 810991 belong to?
HSN code 810991 belongs to Chapter 81 of the GST tariff, which covers Other Base Metals.
