HS code 4002 31 00: Isobutene-isoprene (butyl) rubber (IIR)

HS code 4002 31 00 covers isobutene-isoprene (butyl) rubber (IIR) in chapter 40 (rubber and articles thereof). Total import duty is about 30.98% of the import value; DGFT import policy: Free.

Total import dutyabout 30.98%
Basic customs duty10%
IGST18%
Import policyFree
Export policyFree
Anti-dumpingNone found

Updated 2026-11-01 from official lists, including Budget 2026 and later customs notifications.

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Key facts

Tariff item (8-digit HS code)4002 31 00
DescriptionIsobutene-isoprene (butyl) rubber (IIR)
Chapter40: Rubber and articles thereof
Heading4002: Isobutene-isoprene (butyl) rubber (IIR) halo-isobutene-isoprene rubber (CIIR or BIIR)
Unitkg.
Basic customs duty (tariff rate)10%
Basic customs duty charged10%
Social welfare surcharge10% of BCD
IGST18%
Total import dutyabout 30.98% of the import value
DGFT import policyFree
DGFT export policyFree

Import duty (with Budget 2026 changes)

  • About ₹30,980 duty on every ₹1,00,000 of import value (CIF).

DGFT import and export policy

  • Import: Free.
  • Export: Free.

India's imports and exports

  • India imported 18,854 tonnes in 2025-26 (up 14.7% on 2024-25) under tariff item 40023100, “Isobutene-isoprene(butyl) rubber (iir)”.
  • India exported 15,150 tonnes in 2025-26 (down 33.5% on 2024-25) under tariff item 40023100, “Isobutene-isoprene(butyl) rubber (iir)”.

Questions about HS code 4002 31 00

What is the import duty on HS code 4002 31 00 in India?

About 30.98% of the import value: basic customs duty 10%, social welfare surcharge 10% of BCD and IGST 18%. IGST can usually be claimed back as input tax credit.

Is the import of isobutene-isoprene (butyl) rubber (iir) free in India?

DGFT import policy for HS code 4002 31 00 is Free.

Can isobutene-isoprene (butyl) rubber (iir) be exported from India?

DGFT export policy for HS code 4002 31 00 is Free.

Other lines under heading 4002

4002 11 00: Latex4002 19 10: Oil extended styrene butadiene rubber4002 19 20: Styrene butadiene rubber with styrene content exce4002 19 30: Styrene butadiene styrene oil bound copolymer4002 19 90: Styrene-butadiene rubber (SBR); carboxylated styre4002 20 00: Butadiene rubber (BR)4002 39 00: Isobutene-isoprene (butyl) rubber (IIR) halo-isobu4002 41 00: Latex4002 49 00: Chlorprene (Chlorobutadiene) rubber (CR): other4002 51 00: Latex4002 59 00: Acrylonitrile-butadiene rubber (NBR): other4002 60 00: Isoprene rubber (IR)4002 70 00: Ethylene-propylene-non-conjugated diene rubber (EP4002 80 10: Latex4002 80 20: Chemically modified form of natural rubber includi4002 80 90: Mixtures of any product of heading 40 01 with any 4002 91 00: Latex4002 99 10: Factice (rubber substitute derived from oil)4002 99 20: Tread rubber compound, cushion compound cushion gu4002 99 90: Other

Sources: Customs Tariff of India (CBIC) · Notification 45/2025-Customs and Budget 2026 amendments · IGST rates, Notification 9/2025-Integrated Tax (Rate) · DGFT ITC(HS) import and export policy · CBIC Customs (ADD) notifications · Export Import Data Bank (DGCI&S). Guidance from official lists, not legal advice; confirm the classification with your customs broker.