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 | 2,413,809 |
| China | 2,395,265 |
| Netherlands | 1,006,518 |
| Germany | 244,974 |
| 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 | 1,182,525 | 1,231,284 | +48,759 |
| China | 886,132 | 1,509,133 | +623,001 |
| Netherlands | 651,021 | 355,497 | -295,524 |
| Germany | 135,212 | 109,762 | -25,450 |
| Canada | 91,649 | 77,652 | -13,997 |
| Singapore | 93,051 | 0 | -93,051 |
| Italy | 52,653 | 5,879 | -46,774 |
| France | 0 | 44,890 | +44,890 |
| Ireland | 8,964 | 30,159 | +21,195 |
| United States | 2,722 | 28,587 | +25,865 |
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 | 2,380,024 |
| United States | 1,754,944 |
| Belgium | 888,540 |
| Poland | 360,608 |
| India | 297,880 |
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 | 851,510 | 1,528,514 | +677,004 |
| United States | 656,996 | 1,097,948 | +440,952 |
| Belgium | 678,309 | 210,231 | -468,078 |
| Poland | 200,733 | 159,875 | -40,858 |
| India | 200,227 | 97,653 | -102,574 |
| Singapore | 139,832 | 88,163 | -51,669 |
| Canada | 104,587 | 107,245 | +2,658 |
| Saudi Arabia | 163,884 | 0 | -163,884 |
| Germany | 61,980 | 67,176 | +5,196 |
| Netherlands | 25,715 | 0 | -25,715 |
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 | 2 |
| 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 | 2 | +1 |
| 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 | 1 | +0 |
| 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) | 4,975,471 |
| Sea transport (not vehicle on ferry) | 1,458,960 |
| Air transport | 42,522 |
| Other | 27,529 |
| 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) | 2,283,716 | 2,691,755 | +408,039 |
| Sea transport (not vehicle on ferry) | 810,521 | 648,439 | -162,082 |
| Air transport | 12,840 | 29,682 | +16,842 |
| Other | 5,557 | 21,972 | +16,415 |
| 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 | 3,196,652 |
| London | 1,177,804 |
| Dover | 549,969 |
| Eurotunnel | 465,940 |
| Immingham Docks | 440,838 |
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 | 1,405,106 | 1,791,546 | +386,440 |
| London | 564,561 | 613,243 | +48,682 |
| Dover | 308,638 | 241,331 | -67,307 |
| Eurotunnel | 254,341 | 211,599 | -42,742 |
| Immingham Docks | 281,467 | 159,371 | -122,096 |
| Purfleet | 140,710 | 233,187 | +92,477 |
| London Gateway Port | 78,439 | 41,254 | -37,185 |
| Killingholme | 39,828 | 0 | -39,828 |
| 000 | 5,557 | 21,972 | +16,415 |
| Belfast Port | 0 | 21,125 | +21,125 |
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 |
| Manufacture of chemicals and chemical products | 1 |
Importer companies over time
What this shows: Monthly count of unique importing companies.
Latest 5
| Month | Companies |
|---|---|
| 2025-11 | 4 |
| 2025-10 | 6 |
| 2025-09 | 5 |
| 2025-08 | 5 |
| 2025-07 | 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 | 39 |
| PYROGUARD UK LIMITED | 23 |
| THERMOSEAL GROUP LIMITED | 15 |
| FATRA U.K. LIMITED | 15 |
| NITTO DENKO UK LTD. | 15 |
| PIRELLI UK TYRES LIMITED | 15 |
| HS BUTYL LIMITED | 13 |
| TER (UK) LIMITED | 11 |
| AAMP GLOBAL LIMITED | 8 |
Importer company size by revenue band
What this shows: Distribution of importers across company revenue bands.
Top 5 values
| Revenue | Companies |
|---|---|
| 54m+ | 8 |
| 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 | 1,441,492 |
| India | 440,061 |
| Ireland | 256,863 |
| United Arab Emirates | 255,253 |
| Netherlands | 157,150 |
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 | 1,585 | 1,439,907 | +1,438,322 |
| India | 26,000 | 414,061 | +388,061 |
| Ireland | 132,799 | 124,064 | -8,735 |
| United Arab Emirates | 78,725 | 176,528 | +97,803 |
| Netherlands | 154,479 | 2,671 | -151,808 |
| Sweden | 30,119 | 101,073 | +70,954 |
| Denmark | 36,940 | 87,528 | +50,588 |
| France | 14,069 | 90,684 | +76,615 |
| United States | 36,132 | 49,866 | +13,734 |
| Belgium | 2,939 | 66,907 | +63,968 |
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 |
| XU | 570 |
| XI | 317 |
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 |
| XU | 319 | 251 | -68 |
| XI | 317 | 0 | -317 |
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) | 2,475,460 |
| Roll on Roll off (RORO) | 679,665 |
| Air transport | 243,365 |
| Other | 2,293 |
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) | 298,945 | 2,176,515 | +1,877,570 |
| Roll on Roll off (RORO) | 263,113 | 416,552 | +153,439 |
| Air transport | 166,675 | 76,690 | -89,985 |
| Other | 636 | 1,657 | +1,021 |
Export volume by port
What this shows: Export value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| London Gateway Port | 1,668,808 |
| Southampton | 445,312 |
| Dover / Eurotunnel | 269,799 |
| Immingham Docks | 257,914 |
| London Heathrow Airport | 188,571 |
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 | 70,122 | 1,598,686 | +1,528,564 |
| Southampton | 38,477 | 406,835 | +368,358 |
| Dover / Eurotunnel | 85,224 | 184,575 | +99,351 |
| Immingham Docks | 62,725 | 195,189 | +132,464 |
| London Heathrow Airport | 128,138 | 60,433 | -67,705 |
| Harwich | 148,500 | 0 | -148,500 |
| Holyhead | 68,017 | 62,324 | -5,693 |
| Felixstowe | 22,419 | 55,297 | +32,878 |
| Liverpool Docks | 41,752 | 30,694 | -11,058 |
| 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