HS code 3909 31 00: Poly(methylene phenyl isocyanate) (crude MDI polymeric MDI)

HS code 3909 31 00 covers poly(methylene phenyl isocyanate) (crude MDI polymeric MDI) in chapter 39 (plastics and articles thereof). Total import duty is about 27.73% of the import value; DGFT import policy: Free.

Total import dutyabout 27.73%
Basic customs duty7.5%
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)3909 31 00
DescriptionPoly(methylene phenyl isocyanate) (crude MDI polymeric MDI)
Chapter39: Plastics and articles thereof
Heading3909
Unitkg.
Basic customs duty (tariff rate)7.5%
Basic customs duty charged7.5%
Social welfare surcharge10% of BCD
IGST18%
Total import dutyabout 27.73% of the import value
DGFT import policyFree
DGFT export policyFree

Import duty (with Budget 2026 changes)

  • About ₹27,730 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 229,254 tonnes in 2025-26 (up 3.7% on 2024-25) under tariff item 39093100, “Poly(methylene phenyl isocyanate) (crude mdi, polymeric mdi)”.
  • India exported 5,522 tonnes in 2025-26 (down 2.4% on 2024-25) under tariff item 39093100, “Poly(methylene phenyl isocyanate) (crude mdi, polymeric mdi)”.

Chemicals under HS code 3909 31 00

Polymeric MDI

Questions about HS code 3909 31 00

What is the import duty on HS code 3909 31 00 in India?

About 27.73% of the import value: basic customs duty 7.5%, social welfare surcharge 10% of BCD and IGST 18%. IGST can usually be claimed back as input tax credit.

Is the import of poly(methylene phenyl isocyanate) (crude mdi polymeric mdi) free in India?

DGFT import policy for HS code 3909 31 00 is Free.

Can poly(methylene phenyl isocyanate) (crude mdi polymeric mdi) be exported from India?

DGFT export policy for HS code 3909 31 00 is Free.

Which chemicals fall under HS code 3909 31 00?

Polymeric MDI.

Other lines under heading 3909

3909 10 10: Urea formaldehyde resins3909 10 90: Other3909 20 10: Melamine formaldehyde resins3909 20 90: Other3909 39 10: Poly(phenylene oxide)3909 39 90: Other3909 40 10: Cresol formaldehyde oxide3909 40 20: Phenol formaldehyde resins3909 40 30: Alkyl phenol-formaldehyde resins3909 40 40: Ketonic resins3909 40 50: Phenoxi resins3909 40 60: Terpene phenolic resins3909 40 90: Other3909 50 00: Polyurethanes

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.