Import/export HS code 400231: Isobutene-isoprene rubber (IIR)
A type of synthetic rubber, also known as butyl rubber, used for inner tubes and seals
Why this is important if you are looking for potential customers in the UK:
- It helps you understand the market size for your product in the UK.
- It provides you with a list of potential leads who have bought similar products.
* UK only, last 24 months analysed
Imports by country
What this shows: Import market volume by exporter country into the UK.
Top 5 values
| Country | £ |
|---|---|
| China | 2,308,155 |
| Belgium | 2,184,595 |
| Netherlands | 1,008,254 |
| Germany | 249,548 |
| Canada | 169,301 |
Countries rank shift: first 12 months vs second 12 months
What this shows: Countries are on both sides of the Sankey. Left side is sorted by first 12-month volume, right side by second 12-month volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| China | 895,876 | 1,412,279 | +516,403 |
| Belgium | 1,068,545 | 1,116,050 | +47,505 |
| Netherlands | 701,103 | 307,151 | -393,952 |
| Germany | 158,968 | 90,580 | -68,388 |
| Canada | 91,649 | 77,652 | -13,997 |
| Singapore | 93,051 | 0 | -93,051 |
| France | 0 | 65,781 | +65,781 |
| Italy | 58,532 | 0 | -58,532 |
| Ireland | 14,849 | 28,034 | +13,185 |
| United States | 14,756 | 16,553 | +1,797 |
Imports by country of origin
What this shows: Import volume by production origin country. Differences from exporter-country data can indicate re-export routes.
Top 5 values
| Origin | £ |
|---|---|
| China | 2,292,914 |
| United States | 1,686,421 |
| Belgium | 862,323 |
| Poland | 338,752 |
| India | 308,577 |
Country of origin rank shift: first 12 months vs second 12 months
What this shows: Origin countries are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Origin | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| China | 862,246 | 1,430,668 | +568,422 |
| United States | 732,904 | 953,517 | +220,613 |
| Belgium | 674,136 | 188,187 | -485,949 |
| Poland | 169,339 | 169,413 | +74 |
| India | 211,972 | 96,605 | -115,367 |
| Canada | 104,587 | 107,245 | +2,658 |
| Singapore | 123,361 | 76,207 | -47,154 |
| Germany | 57,018 | 67,193 | +10,175 |
| Saudi Arabia | 117,541 | 0 | -117,541 |
| Netherlands | 12,305 | 0 | -12,305 |
Importers across UK regions
What this shows: Number of importing companies by UK ITL2 region.
Top 5 values
| UK region | Companies |
|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 3 |
| Herefordshire, Worcestershire and Warwickshire | 2 |
| Shropshire and Staffordshire | 2 |
| Suffolk | 2 |
| West Midlands | 2 |
UK regions rank shift: first 12 months vs second 12 months
What this shows: UK regions are on both sides of the Sankey. Left side is sorted by first 12-month importer count, right side by second 12-month importer count, so rank changes are visible from line crossings.
Top 10 values
| UK region | First 12m | Second 12m | Delta |
|---|---|---|---|
| Berkshire, Buckinghamshire and Oxfordshire | 1 | 3 | +2 |
| Herefordshire, Worcestershire and Warwickshire | 0 | 2 | +2 |
| Shropshire and Staffordshire | 2 | 2 | +0 |
| Suffolk | 1 | 1 | +0 |
| West Midlands | 1 | 2 | +1 |
| Derbyshire and Nottinghamshire | 1 | 1 | +0 |
| Essex | 1 | 0 | -1 |
| Greater Manchester | 1 | 1 | +0 |
| Hampshire and Isle of Wight | 1 | 0 | -1 |
| Merseyside | 1 | 1 | +0 |
Import volume by transport
What this shows: Import value by transport mode used to bring goods into the UK.
Top 5 values
| Transport | £ |
|---|---|
| Roll on Roll off (RORO) | 4,709,773 |
| Sea transport (not vehicle on ferry) | 1,435,807 |
| Air transport | 46,214 |
| Other | 27,325 |
| Road transport | 3,660 |
Transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Roll on Roll off (RORO) | 2,197,338 | 2,512,435 | +315,097 |
| Sea transport (not vehicle on ferry) | 869,435 | 566,372 | -303,063 |
| Air transport | 34,148 | 12,066 | -22,082 |
| Other | 5,113 | 22,212 | +17,099 |
| Road transport | 0 | 3,660 | +3,660 |
Import volume by port
What this shows: Import value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| Felixstowe | 3,101,819 |
| London | 1,046,684 |
| Dover | 517,324 |
| Eurotunnel | 444,084 |
| Immingham Docks | 432,611 |
Port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month import value, right side by second 12-month import value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Felixstowe | 1,485,673 | 1,616,146 | +130,473 |
| London | 490,694 | 555,990 | +65,296 |
| Dover | 334,985 | 182,339 | -152,646 |
| Eurotunnel | 225,280 | 218,804 | -6,476 |
| Immingham Docks | 282,665 | 149,946 | -132,719 |
| Purfleet | 147,174 | 223,966 | +76,792 |
| London Gateway Port | 78,439 | 41,254 | -37,185 |
| Dover / Eurotunnel | 0 | 46,192 | +46,192 |
| 000 | 5,113 | 22,212 | +17,099 |
| London Heathrow Airport | 15,309 | 9,171 | -6,138 |
Importer companies by SIC division
What this shows: Industry breakdown (SIC divisions) of importing companies.
Top 5 values
| SIC | Companies |
|---|---|
| Wholesale trade, except of motor vehicles and motorcycles | 7 |
| Office administrative, office support and other business support activities | 3 |
| Manufacture of fabricated metal products, except machinery and equipment | 2 |
| Manufacture of other non-metallic mineral products | 2 |
| Wholesale and retail trade and repair of motor vehicles and motorcycles | 2 |
Importer companies over time
What this shows: Monthly count of unique importing companies.
Latest 5
| Month | Companies |
|---|---|
| 2026-01 | 7 |
| 2025-11 | 4 |
| 2025-10 | 6 |
| 2025-09 | 5 |
| 2025-08 | 5 |
Top importers
What this shows: Companies with the highest number of months traded for this HS code.
| Company | Months traded |
|---|---|
| BOSTIK LIMITED | 41 |
| SOUDAL (UK) LIMITED | 40 |
| PYROGUARD UK LIMITED | 24 |
| THERMOSEAL GROUP LIMITED | 16 |
| FATRA U.K. LIMITED | 15 |
| NITTO DENKO UK LTD. | 15 |
| PIRELLI UK TYRES LIMITED | 15 |
| HS BUTYL LIMITED | 13 |
| TER (UK) LIMITED | 11 |
| CALDIC (UK) LTD | 9 |
Importer company size by revenue band
What this shows: Distribution of importers across company revenue bands.
Top 5 values
| Revenue | Companies |
|---|---|
| 54m+ | 9 |
| 15m-54m | 6 |
| 1m-15m | 5 |
| 0-1m | 1 |
Import seasonality
What this shows: Average monthly import pattern from historical data.
Exports by country
What this shows: Export market volume by destination country from the UK.
Top 5 values
| Country | £ |
|---|---|
| Singapore | 1,686,147 |
| India | 437,588 |
| United Arab Emirates | 261,399 |
| Ireland | 255,215 |
| Sweden | 126,842 |
Export countries rank shift: first 12 months vs second 12 months
What this shows: Destination countries are on both sides of the Sankey. Left side is sorted by first 12-month export volume, right side by second 12-month export volume, so rank changes are visible from line crossings.
Top 10 values
| Country | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Singapore | 0 | 1,686,147 | +1,686,147 |
| India | 26,303 | 411,285 | +384,982 |
| United Arab Emirates | 141,848 | 119,551 | -22,297 |
| Ireland | 138,063 | 117,152 | -20,911 |
| Sweden | 24,513 | 102,329 | +77,816 |
| Denmark | 35,991 | 87,528 | +51,537 |
| France | 32,996 | 71,757 | +38,761 |
| Belgium | 40,696 | 29,150 | -11,546 |
| China, Hong Kong Special Administrative Region | 60,337 | 0 | -60,337 |
| United States | 5,131 | 49,866 | +44,735 |
Exports by country of origin
What this shows: Export volume by production origin country. For re-exports, indicates where goods originated before UK export.
Top 5 values
| Origin | £ |
|---|---|
| Ireland | 1,406 |
| XI | 145 |
Export origin countries rank shift: first 12 months vs second 12 months
What this shows: Origin countries are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Origin | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Ireland | 0 | 1,406 | +1,406 |
| XI | 145 | 0 | -145 |
Export volume by transport
What this shows: Export value by transport mode used to ship goods from the UK.
Top 5 values
| Transport | £ |
|---|---|
| Sea transport (not vehicle on ferry) | 2,569,247 |
| Roll on Roll off (RORO) | 677,973 |
| Air transport | 161,330 |
| Other | 2,121 |
Export transport rank shift: first 12 months vs second 12 months
What this shows: Transport modes are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Transport | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| Sea transport (not vehicle on ferry) | 206,245 | 2,363,002 | +2,156,757 |
| Roll on Roll off (RORO) | 324,823 | 353,150 | +28,327 |
| Air transport | 89,372 | 71,958 | -17,414 |
| Other | 715 | 1,406 | +691 |
Export volume by port
What this shows: Export value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| London Gateway Port | 1,664,315 |
| Southampton | 691,552 |
| Dover / Eurotunnel | 261,677 |
| Immingham Docks | 260,214 |
| London Heathrow Airport | 136,058 |
Export port rank shift: first 12 months vs second 12 months
What this shows: Ports are on both sides of the Sankey. Left side is sorted by first 12-month export value, right side by second 12-month export value, so rank changes are visible from line crossings.
Top 10 values
| Port | First 12m £ | Second 12m £ | Delta £ |
|---|---|---|---|
| London Gateway Port | 131,528 | 1,532,787 | +1,401,259 |
| Southampton | 38,477 | 653,075 | +614,598 |
| Dover / Eurotunnel | 141,749 | 119,928 | -21,821 |
| Immingham Docks | 57,119 | 203,095 | +145,976 |
| London Heathrow Airport | 76,524 | 59,534 | -16,990 |
| Holyhead | 75,582 | 57,969 | -17,613 |
| Liverpool Docks | 44,115 | 34,534 | -9,581 |
| Felixstowe | 22,419 | 55,297 | +32,878 |
| Heysham | 9,193 | 21,665 | +12,472 |
| London | 0 | 29,150 | +29,150 |
Quick facts
HS code: 400231
Coverage: United Kingdom, most metrics for the last 24 months
Description: A type of synthetic rubber, also known as butyl rubber, used for inner tubes and seals