What is HSN Code 291511?
HSN code 291511 is the Harmonized System of Nomenclature classification for Formic Acid 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 29 — Organic Chemicals, which is part of Section VI: Chemical Products. Every GST-registered business supplying formic acid must quote HSN 291511 (or the digit-length required for its turnover) on tax invoices and in GSTR-1.