HSN CODE - 28112950 : Sulphur trioxide (sulphuric anhydride)

Harmonised System of Nomenclature (HSN Codes) 28112950 are used for the Sulphur trioxide (sulphuric anhydride) products under Goods and Service Tax classification.

India was originally using 6 digit HSN codes to classify commodities but later two more digits were added to make the codes more precise, resulting in an 8 digit classification.

Understanding HSN Code 28112950

First two digits (28) represent the chapter number which is Chapter 28 - Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

Next two digits (11) represent the heading number which is OTHER INORGANIC ACIDS AND OTHER IN-ORGANIC OXYGEN COMPOUNDS OF NON-METALS

Next two digits (29) represent the product code which is Other

Last two digits (50) are for final or deeper classification which is Sulphur trioxide (sulphuric anhydride)

All 8 digits of HSN code is mandatory for export & imports for tax invoice of GST.