What is HSN Code 251820?
HSN code 251820 is the Harmonized System of Nomenclature classification for Calcined Or Sintered Dolomite 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 25 — Salt, Sulphur, Earths And Stone, Plastering Materials, Lime And Cement, which is part of Section V: Mineral Products. Every GST-registered business supplying calcined or sintered dolomite must quote HSN 251820 (or the digit-length required for its turnover) on tax invoices and in GSTR-1.