HS Code 2929
Other Nitrogen-Function Compounds
HS code 2929 covers nitrogen-function compounds not elsewhere classified, most notably isocyanates used in the production of polyurethane foams and adhesives.
4-digit Section VITanker Hazmat 6.1
HS Code 2929 — Other Nitrogen-Function Compounds
This is a 'catch-all' category for organic compounds with nitrogen functions that are not classified elsewhere in the Harmonized System. It predominantly includes isocyanates, which are critical for making polyurethane foams and coatings.
What's included
- Isocyanates (TDI, MDI)
- Calcium cyanamide (organic purity)
- Azides
What's excluded
- Calcium cyanamide (fertiliser grade) → use
3102(Fertiliser grade is classified in Chapter 31 regardless of nitrogen content.)
Common examples
- Toluene diisocyanate (TDI)
- Methyl isocyanate
- Polymeric MDI
Frequently asked questions
Does this cover TDI and MDI?
Yes, Toluene diisocyanate and Methylene diphenyl diisocyanate are standard inclusions here if used for industrial synthesis.
Trade & shipping notes
- Typical duty range: 0% - 6.5%
- Documentation: Check if chemical identity is listed under the Chemical Weapons Convention (CWC) schedules.
- Typical shipping mode: Tanker
- Top exporters: Germany, South Korea, United States
- Top importers: Vietnam, Turkey, Mexico
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Key takeaway
Critically important for the global foam and furniture manufacturing sectors.
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