What is HSN Code 280421?
HSN code 280421 is the Harmonized System of Nomenclature classification for Hydrogen, Rare Gases And Other Non-Metals under India's Goods and Services Tax (GST). It is a 6-digit code sitting at the sub-heading (6-digit) level of the HSN hierarchy.
This code belongs to Chapter 28 — Inorganic Chemicals, Organic Or Inorganic Compounds Of Precious…, which is part of Section VI: Chemical Products. Every GST-registered business supplying hydrogen, rare gases and other non-metals must quote HSN 280421 (or the digit-length required for its turnover) on tax invoices and in GSTR-1.