What is HSN Code 40023100?
HSN code 40023100 is the Harmonized System of Nomenclature classification for Isobutene-Isoprene (Butyl) Rubber (Iir) under India's Goods and Services Tax (GST). It is a 8-digit code sitting at the tariff item (8-digit) level of the HSN hierarchy.
This code belongs to Chapter 40 — Rubber And Articles Thereof, which is part of Section VII: Plastics & Rubber. Every GST-registered business supplying isobutene-isoprene (butyl) rubber (iir) must quote HSN 40023100 (or the digit-length required for its turnover) on tax invoices and in GSTR-1.