What is HSN Code 390931?
HSN code 390931 is the Harmonized System of Nomenclature classification for Poly(Methylene Phenyl Isocyanate) (Crude Mdi, Polymeric Mdi) 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 39 — Plastics And Articles Thereof, which is part of Section VII: Plastics & Rubber. Every GST-registered business supplying poly(methylene phenyl isocyanate) (crude mdi, polymeric mdi) must quote HSN 390931 (or the digit-length required for its turnover) on tax invoices and in GSTR-1.