HS code · 6-digit subheading
HS Code 4002.99 – Rubber; synthetic, n.e.c. in heading 4002, (other than latex), in primary forms or in plates, sheets or strip
HS code 4002.99 is the 6-digit subheading for rubber, synthetic, n.e.c. in heading 4002, (other than latex), in primary forms or in plates, sheets or strip. It is used for ethylene propylene diene monomer (EPDM) rubber, butyl rubber, silicone rubber, fluoroelastomers (FKM) and chlorosulfonated polyethylene (CSM).
What HS 4002.99 covers
This HS code captures a broad category of synthetic rubbers, not elsewhere specified in heading 4002, traded in solid primary forms like bales, crumbs, sheets, or strips, excluding latex. It's a vital component for numerous manufacturing sectors, offering tailored properties such as oil resistance, heat resistance, or extreme durability, which are often superior to natural rubber for specific applications. Major importers are countries with advanced manufacturing capabilities, particularly in the automotive, construction, and electronics industries, including China, the United States, and Germany. Exporters are typically large chemical producers in nations like the USA, Japan, and various European countries, leveraging their petrochemical infrastructure. Key considerations in this trade include the specific polymer type (e.g., EPDM, Butyl, Silicone rubber), its grade, and purity, as these factors significantly influence its suitability for end-use products ranging from seals and gaskets to hoses and specialized tires. This code represents the backbone of many modern industrial applications requiring high-performance elastomers.
- Covers
- Ethylene propylene diene monomer (EPDM) rubber
- Butyl rubber
- Silicone rubber
- Fluoroelastomers (FKM)
- Chlorosulfonated polyethylene (CSM)
- Hydrogenated nitrile butadiene rubber (HNBR)
- Acrylonitrile butadiene rubber (NBR) bales
- Polybutadiene rubber (BR) crumbs
- Examples
- ExxonMobil Butyl rubber
- Dow Corning Silicone rubber
- DuPont Viton (FKM)
- Lanxess EPDM
- Zeon NBR
Codes often confused with 4002.99
Common mistake. This code is often confused with other specific synthetic rubbers (e.g., 400219 for SBR, 400239 for IIR) if the "n.e.c." (not elsewhere specified) aspect is overlooked, or with natural rubber (4001) if not properly identified.
Top exporters and importers of HS code 400299, 2025
In 2025, the largest exporter of HS code 400299 in UN Comtrade data was China, with 28% of world exports; the largest importer in UN Comtrade data was China, with 12% 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 China $515M 28% of world exports
- 2 Japan $358M 19% of world exports
- 3 United States $305M 16% of world exports
World total: $1.9B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $230M 12% of world imports
- 2 Germany $205M 11% of world imports
- 3 United States $139M 7.4% of world imports
World total: $1.9B 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 4002.99 4
Brazil splits HS 4002.99 into 4 NCM codes, Mercosur's 8-digit tariff lines.
- 4002.99.10 Styrene-isoprene-styrene rubberBorracha estireno-isopreno-estireno
- 4002.99.20 EPDM-propylene rubberBorracha etileno-propileno-dieno não conjugado-propileno (EPDM-propileno)
- 4002.99.30 Hydrogenated acrylonitrile-butadiene rubberBorracha acrilonitrila-butadieno hidrogenada
- 4002.99.90 Other synthetic rubber, not latexOutras
All Brazil NCM codes in heading 40.02 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 4002.99
What is HS code 400299?
HS code 400299 is a 6-digit subheading in the Harmonized System that covers: Rubber; synthetic, n.e.c. in heading 4002, (other than latex), in primary forms or in plates, sheets or strip. This HS code captures a broad category of synthetic rubbers, not elsewhere specified in heading 4002, traded in solid primary forms like bales, crumbs, sheets, or strips, excluding latex. It's a vital component for numerous manufacturing sectors, offering tailored properties such as oil resistance, heat resistance, or extreme durability, which are often superior to natural rubber for specific applications. Major importers are countries with advanced manufacturing capabilities, particularly in the automotive, construction, and electronics industries, including China, the United States, and Germany. Exporters are typically large chemical producers in nations like the USA, Japan, and various European countries, leveraging their petrochemical infrastructure. Key considerations in this trade include the specific polymer type (e.g., EPDM, Butyl, Silicone rubber), its grade, and purity, as these factors significantly influence its suitability for end-use products ranging from seals and gaskets to hoses and specialized tires. This code represents the backbone of many modern industrial applications requiring high-performance elastomers.
What products fall under HS code 400299?
Ethylene propylene diene monomer (EPDM) rubber, Butyl rubber, Silicone rubber, Fluoroelastomers (FKM), Chlorosulfonated polyethylene (CSM), Hydrogenated nitrile butadiene rubber (HNBR), Acrylonitrile butadiene rubber (NBR) bales, Polybutadiene rubber (BR) crumbs
What are common misclassifications for HS code 400299?
This code is often confused with other specific synthetic rubbers (e.g., 400219 for SBR, 400239 for IIR) if the "n.e.c." (not elsewhere specified) aspect is overlooked, or with natural rubber (4001) if not properly identified.
Which countries are the top exporters of goods under HS code 400299?
In 2025, the top exporters of HS code 400299 in UN Comtrade data were China ($515M, 28% of world exports), Japan ($358M) and the United States ($305M). World exports came to about $1.9B, 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 400299?
In 2025, the top importers of HS code 400299 in UN Comtrade data were China ($230M, 12% of world imports), Germany ($205M) and the United States ($139M). World imports came to about $1.9B, 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 400299 structured?
HS code 400299 is a 6-digit subheading under the Harmonized System. The first 2 digits (40) identify the chapter, digits 3-4 (02) 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 400299?
Brazil splits HS code 400299 into 4 NCM codes: 4002.99.10 (Styrene-isoprene-styrene rubber), 4002.99.20 (EPDM-propylene rubber), 4002.99.30 (Hydrogenated acrylonitrile-butadiene rubber), 4002.99.90 (Other synthetic rubber, not latex). The first 6 digits of each match the HS code.