What is HSN Code 291816?
HSN code 291816 is the Harmonized System of Nomenclature classification for Gluconic Acid, Its Salts And Esters 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 gluconic acid, its salts and esters must quote HSN 291816 (or the digit-length required for its turnover) on tax invoices and in GSTR-1.