HS code · 6-digit subheading
HS Code 4005.99 – Rubber; unvulcanised, (compounded other than with carbon black or silica), in primary forms, (other than plates, sheets, strip, solutions or dispersions)
HS code 4005.99 is the 6-digit subheading for rubber, unvulcanised, (compounded other than with carbon black or silica), in primary forms, (other than plates, sheets, strip, solutions or dispersions). It is used for EPDM rubber compound, NBR rubber compound, natural rubber compound, SBR rubber compound and butyl rubber compound.
What HS 4005.99 covers
This category covers unvulcanized rubber compounds that have been mixed with various additives, excluding carbon black or silica (which fall under 400510). These compounds are in primary forms, meaning they are not yet shaped into finished products or semi-finished forms like plates, sheets, or strips, nor are they solutions or dispersions. They serve as crucial intermediate products for manufacturers of diverse rubber goods, providing pre-mixed formulations ready for subsequent processing steps such as molding, extrusion, or calendering. Importers and exporters are typically specialized rubber compounders and rubber product manufacturers. Key trade considerations include the specific polymer base (e.g., EPDM, NBR), the type and percentage of compounding ingredients, shelf life, and strict storage conditions to prevent premature vulcanization and maintain material integrity.
- Covers
- EPDM rubber compound
- NBR rubber compound
- Natural rubber compound
- SBR rubber compound
- Butyl rubber compound
- Silicone rubber compound
- Fluoroelastomer compound
- Nitrile rubber compound
- Examples
- Freudenberg Sealing Technologies (compounds for seals)
- Parker Hannifin (compounds for O-rings)
- Trelleborg (compounds for various applications)
- Hutchinson (rubber compounds)
- ContiTech (rubber compounds)
Codes often confused with 4005.99
Common mistake. Often confused with 400510 (compounded with carbon black or silica) if the specific filler is not identified, or with 400520 (in solutions/dispersions) if the physical form is not primary. Also, 4002 (synthetic rubber in primary forms) if not compounded.
Top exporters and importers of HS code 400599, 2025
In 2025, the largest exporter of HS code 400599 in UN Comtrade data was Germany, with 25% of world exports; the largest importer in UN Comtrade data was Germany, with 9.2% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Germany $251M 25% of world exports
- 2 Italy $156M 15% of world exports
- 3 United States $150M 15% of world exports
World total: $1.0B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $94M 9.2% of world imports
- 2 Poland $88M 8.7% of world imports
- 3 France $66M 6.5% of world imports
World total: $1.0B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for 4005.99 2
Brazil splits HS 4005.99 into 2 NCM codes, Mercosur's 8-digit tariff lines.
- 4005.99.10 Chewing gum base rubber in other primary formsPreparações base para a fabricação de gomas de mascar
- 4005.99.90 Other unvulcanised compounded rubberOutras
All Brazil NCM codes in heading 40.05 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
EU Regulatory Requirements
This product category is subject to the EU Deforestation Regulation (EUDR). Importers must provide due diligence statements proving the product was not produced on deforested land after December 31, 2020.
Questions about HS 4005.99
What is HS code 400599?
HS code 400599 is a 6-digit subheading in the Harmonized System that covers: Rubber; unvulcanised, (compounded other than with carbon black or silica), in primary forms, (other than plates, sheets, strip, solutions or dispersions). This category covers unvulcanized rubber compounds that have been mixed with various additives, excluding carbon black or silica (which fall under 400510). These compounds are in primary forms, meaning they are not yet shaped into finished products or semi-finished forms like plates, sheets, or strips, nor are they solutions or dispersions. They serve as crucial intermediate products for manufacturers of diverse rubber goods, providing pre-mixed formulations ready for subsequent processing steps such as molding, extrusion, or calendering. Importers and exporters are typically specialized rubber compounders and rubber product manufacturers. Key trade considerations include the specific polymer base (e.g., EPDM, NBR), the type and percentage of compounding ingredients, shelf life, and strict storage conditions to prevent premature vulcanization and maintain material integrity.
What products fall under HS code 400599?
EPDM rubber compound, NBR rubber compound, natural rubber compound, SBR rubber compound, butyl rubber compound, silicone rubber compound, fluoroelastomer compound, nitrile rubber compound
What are common misclassifications for HS code 400599?
Often confused with 400510 (compounded with carbon black or silica) if the specific filler is not identified, or with 400520 (in solutions/dispersions) if the physical form is not primary. Also, 4002 (synthetic rubber in primary forms) if not compounded.
Which countries are the top exporters of goods under HS code 400599?
In 2025, the top exporters of HS code 400599 in UN Comtrade data were Germany ($251M, 25% of world exports), Italy ($156M) and the United States ($150M). World exports came to about $1.0B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 400599?
In 2025, the top importers of HS code 400599 in UN Comtrade data were Germany ($94M, 9.2% of world imports), Poland ($88M) and France ($66M). World imports came to about $1.0B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 400599 structured?
HS code 400599 is a 6-digit subheading under the Harmonized System. The first 2 digits (40) identify the chapter, digits 3-4 (05) identify the heading, and digits 5-6 (99) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 400599?
Brazil splits HS code 400599 into 2 NCM codes: 4005.99.10 (Chewing gum base rubber in other primary forms), 4005.99.90 (Other unvulcanised compounded rubber). The first 6 digits of each match the HS code.