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 | £ |
|---|---|
| Belgium | 2,417,619 |
| China | 2,404,935 |
| Netherlands | 1,029,860 |
| Germany | 253,573 |
| 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 £ |
|---|---|---|---|
| Belgium | 1,179,242 | 1,238,377 | +59,135 |
| China | 992,656 | 1,412,279 | +419,623 |
| Netherlands | 642,477 | 387,383 | -255,094 |
| Germany | 151,089 | 102,484 | -48,605 |
| 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 | 16,425 | 29,019 | +12,594 |
| United States | 3,714 | 27,595 | +23,881 |
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 | 2,389,694 |
| United States | 1,817,541 |
| Belgium | 897,339 |
| Poland | 380,903 |
| 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 | 959,026 | 1,430,668 | +471,642 |
| United States | 698,335 | 1,119,206 | +420,871 |
| Belgium | 669,690 | 227,649 | -442,041 |
| Poland | 203,040 | 177,863 | -25,177 |
| India | 211,972 | 96,605 | -115,367 |
| Canada | 104,587 | 107,245 | +2,658 |
| Singapore | 123,361 | 76,207 | -47,154 |
| Saudi Arabia | 163,884 | 0 | -163,884 |
| Germany | 49,139 | 79,097 | +29,958 |
| 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) | 5,027,238 |
| Sea transport (not vehicle on ferry) | 1,475,635 |
| Air transport | 46,214 |
| Other | 28,028 |
| 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) | 2,338,656 | 2,688,582 | +349,926 |
| Sea transport (not vehicle on ferry) | 870,947 | 604,688 | -266,259 |
| Air transport | 23,106 | 23,108 | +2 |
| Other | 4,831 | 23,197 | +18,366 |
| 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 | 3,198,599 |
| London | 1,177,804 |
| Dover | 541,274 |
| Eurotunnel | 486,235 |
| Immingham Docks | 454,217 |
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 | 1,523,375 | 1,675,224 | +151,849 |
| London | 564,561 | 613,243 | +48,682 |
| Dover | 320,619 | 220,655 | -99,964 |
| Eurotunnel | 258,981 | 227,254 | -31,727 |
| Immingham Docks | 271,213 | 183,004 | -88,209 |
| Purfleet | 128,866 | 242,274 | +113,408 |
| London Gateway Port | 78,439 | 41,254 | -37,185 |
| Dover / Eurotunnel | 0 | 46,192 | +46,192 |
| Killingholme | 39,828 | 0 | -39,828 |
| 000 | 4,831 | 23,197 | +18,366 |
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 | 260,040 |
| Sweden | 132,448 |
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 | 23,527 | 414,061 | +390,534 |
| United Arab Emirates | 105,445 | 155,954 | +50,509 |
| Ireland | 127,769 | 132,271 | +4,502 |
| Sweden | 30,119 | 102,329 | +72,210 |
| Denmark | 35,991 | 87,528 | +51,537 |
| Netherlands | 103,950 | 2,671 | -101,279 |
| France | 32,996 | 71,757 | +38,761 |
| Belgium | 17,975 | 51,871 | +33,896 |
| United States | 10,525 | 49,866 | +39,341 |
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 | 227 |
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 | 227 | 0 | -227 |
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) | 2,678,803 |
| Roll on Roll off (RORO) | 682,716 |
| Air transport | 166,724 |
| Other | 2,203 |
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) | 276,622 | 2,402,181 | +2,125,559 |
| Roll on Roll off (RORO) | 283,789 | 398,927 | +115,138 |
| Air transport | 88,555 | 78,169 | -10,386 |
| Other | 771 | 1,432 | +661 |
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 |
| Immingham Docks | 265,820 |
| Dover / Eurotunnel | 261,677 |
| 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 | 92,349 | 1,571,966 | +1,479,617 |
| Southampton | 38,477 | 653,075 | +614,598 |
| Immingham Docks | 62,725 | 203,095 | +140,370 |
| Dover / Eurotunnel | 111,065 | 150,612 | +39,547 |
| London Heathrow Airport | 75,625 | 60,433 | -15,192 |
| Holyhead | 66,304 | 67,247 | +943 |
| Harwich | 103,950 | 0 | -103,950 |
| Liverpool Docks | 38,300 | 40,349 | +2,049 |
| Felixstowe | 22,419 | 55,297 | +32,878 |
| Heysham | 13,936 | 21,665 | +7,729 |
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