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 | 2,513,783 |
| Belgium | 2,450,548 |
| Netherlands | 836,423 |
| Germany | 174,884 |
| Canada | 162,701 |
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 | 1,114,846 | 1,398,937 | +284,091 |
| Belgium | 1,245,216 | 1,205,332 | -39,884 |
| Netherlands | 441,310 | 395,113 | -46,197 |
| Germany | 84,040 | 90,844 | +6,804 |
| Canada | 85,095 | 77,606 | -7,489 |
| France | 0 | 65,781 | +65,781 |
| Italy | 58,532 | 0 | -58,532 |
| Singapore | 45,576 | 0 | -45,576 |
| Ireland | 14,152 | 29,581 | +15,429 |
| United States | 21,236 | 11,960 | -9,276 |
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 | 2,498,542 |
| United States | 1,913,104 |
| Belgium | 526,148 |
| India | 371,498 |
| Poland | 359,557 |
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 | 1,083,076 | 1,415,466 | +332,390 |
| United States | 954,185 | 958,919 | +4,734 |
| Belgium | 281,068 | 245,080 | -35,988 |
| India | 176,487 | 195,011 | +18,524 |
| Poland | 163,854 | 195,703 | +31,849 |
| Canada | 127,626 | 100,668 | -26,958 |
| Singapore | 97,335 | 70,258 | -27,077 |
| Germany | 63,974 | 64,046 | +72 |
| 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 |
| Greater Manchester | 2 |
| Herefordshire, Worcestershire and Warwickshire | 2 |
| Shropshire and Staffordshire | 2 |
| Suffolk | 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 |
| Greater Manchester | 1 | 2 | +1 |
| Herefordshire, Worcestershire and Warwickshire | 1 | 1 | +0 |
| Shropshire and Staffordshire | 2 | 2 | +0 |
| Suffolk | 2 | 0 | -2 |
| West Midlands | 2 | 2 | +0 |
| Derbyshire and Nottinghamshire | 1 | 1 | +0 |
| Essex | 1 | 0 | -1 |
| 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) | 4,702,426 |
| Sea transport (not vehicle on ferry) | 1,616,892 |
| Air transport | 48,518 |
| Other | 28,175 |
| 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) | 2,201,936 | 2,500,490 | +298,554 |
| Sea transport (not vehicle on ferry) | 875,776 | 741,116 | -134,660 |
| Air transport | 35,251 | 13,267 | -21,984 |
| Other | 4,416 | 23,759 | +19,343 |
| 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 | 2,916,396 |
| London | 1,245,715 |
| Immingham Docks | 537,042 |
| Dover | 479,620 |
| Purfleet | 419,577 |
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 | 1,286,416 | 1,629,980 | +343,564 |
| London | 658,222 | 587,493 | -70,729 |
| Immingham Docks | 273,548 | 263,494 | -10,054 |
| Dover | 292,808 | 186,812 | -105,996 |
| Purfleet | 195,958 | 223,619 | +27,661 |
| Eurotunnel | 232,746 | 183,596 | -49,150 |
| London Gateway Port | 114,291 | 13,705 | -100,586 |
| Dover / Eurotunnel | 0 | 46,192 | +46,192 |
| Killingholme | 0 | 38,551 | +38,551 |
| 000 | 4,416 | 23,759 | +19,343 |
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 rubber and plastic products | 2 |
Importer companies over time
What this shows: Monthly count of unique importing companies.
Latest 5
| Month | Companies |
|---|---|
| 2026-04 | 3 |
| 2026-03 | 7 |
| 2026-02 | 4 |
| 2026-01 | 7 |
| 2025-12 | 3 |
Top importers
What this shows: Companies with the highest number of months traded for this HS code.
| Company | Months traded |
|---|---|
| BOSTIK LIMITED | 45 |
| SOUDAL (UK) LIMITED | 44 |
| PYROGUARD UK LIMITED | 25 |
| THERMOSEAL GROUP LIMITED | 18 |
| 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 | 7 |
| 1m-15m | 6 |
| 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 | 1,744,514 |
| India | 586,393 |
| United Arab Emirates | 346,215 |
| Ireland | 287,655 |
| Sweden | 153,985 |
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 | 49,135 | 1,695,379 | +1,646,244 |
| India | 178,232 | 408,161 | +229,929 |
| United Arab Emirates | 202,490 | 143,725 | -58,765 |
| Ireland | 169,493 | 118,162 | -51,331 |
| Sweden | 57,274 | 96,711 | +39,437 |
| France | 55,606 | 90,120 | +34,514 |
| Denmark | 99,891 | 23,628 | -76,263 |
| Belgium | 40,696 | 29,150 | -11,546 |
| Malta | 26,689 | 30,860 | +4,171 |
| United States | 8,982 | 44,240 | +35,258 |
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 | 1,490 |
| 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 | 1,490 | +1,490 |
| 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) | 2,892,494 |
| Roll on Roll off (RORO) | 774,431 |
| Air transport | 153,256 |
| Other | 2,205 |
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) | 555,488 | 2,337,006 | +1,781,518 |
| Roll on Roll off (RORO) | 398,123 | 376,308 | -21,815 |
| Air transport | 46,886 | 106,370 | +59,484 |
| Other | 715 | 1,490 | +775 |
Export volume by port
What this shows: Export value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| London Gateway Port | 1,706,648 |
| Southampton | 938,707 |
| Dover / Eurotunnel | 318,178 |
| Immingham Docks | 287,357 |
| Holyhead | 171,074 |
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 | 197,682 | 1,508,966 | +1,311,284 |
| Southampton | 190,448 | 748,259 | +557,811 |
| Dover / Eurotunnel | 166,076 | 152,102 | -13,974 |
| Immingham Docks | 153,780 | 133,577 | -20,203 |
| Holyhead | 91,290 | 79,784 | -11,506 |
| London Heathrow Airport | 35,813 | 63,813 | +28,000 |
| Liverpool Docks | 62,828 | 18,613 | -44,215 |
| Felixstowe | 74,419 | 6,937 | -67,482 |
| East Midlands Airport | 4,788 | 28,518 | +23,730 |
| 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