HSN CODE - 29201910 : PHOSPHOROTHIOIC ACID,

Harmonised System of Nomenclature (HSN Codes) 29201910 are used for the PHOSPHOROTHIOIC ACID, 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 29201910

First two digits (29) represent the chapter number which is Chapter 29 - Organic chemicals

Next two digits (20) represent the heading number which is ESTERS OF OTHER INORGANIC ACIDS OF NON-METALS (EXCLUDING ESTERS OF HYDROGEN HALIDES) AND THEIR SALTS; THEIR HALOGENATED, SULPHONATED, NITRATED OR NITROSATED DERIVATIVES

Next two digits (19) represent the product code which is Other

Last two digits (10) are for final or deeper classification which is PHOSPHOROTHIOIC ACID,

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