Import/export HS code 700231: Glass tubes of fused quartz or silica
Tubes made from fused quartz or silica, known for their heat resistance
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 | £ |
|---|---|
| United States | 11,840,004 |
| Germany | 2,000,035 |
| China | 1,178,987 |
| Hungary | 117,891 |
| Netherlands | 91,891 |
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 £ |
|---|---|---|---|
| United States | 5,640,122 | 6,199,882 | +559,760 |
| Germany | 1,163,186 | 836,849 | -326,337 |
| China | 731,426 | 447,561 | -283,865 |
| Hungary | 27,897 | 89,994 | +62,097 |
| Netherlands | 67,500 | 24,391 | -43,109 |
| Canada | 21,380 | 24,452 | +3,072 |
| China, Hong Kong Special Administrative Region | 19,789 | 19,430 | -359 |
| South Korea | 13,059 | 20,502 | +7,443 |
| India | 8,416 | 24,804 | +16,388 |
| Norway | 7,555 | 15,841 | +8,286 |
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 | £ |
|---|---|
| Germany | 12,204,628 |
| China | 1,489,773 |
| United States | 1,482,854 |
| Hungary | 73,081 |
| Netherlands | 58,512 |
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 £ |
|---|---|---|---|
| Germany | 6,117,392 | 6,087,236 | -30,156 |
| China | 898,334 | 591,439 | -306,895 |
| United States | 623,062 | 859,792 | +236,730 |
| Hungary | 2,731 | 70,350 | +67,619 |
| Netherlands | 41,321 | 17,191 | -24,130 |
| United Kingdom | 3,790 | 40,965 | +37,175 |
| South Korea | 13,059 | 20,502 | +7,443 |
| India | 8,416 | 24,804 | +16,388 |
| Tonga | 0 | 12,545 | +12,545 |
| Poland | 4,335 | 0 | -4,335 |
Importers across UK regions
What this shows: Number of importing companies by UK ITL2 region.
Top 5 values
| UK region | Companies |
|---|---|
| Cambridgeshire and Peterborough | 8 |
| Berkshire, Buckinghamshire and Oxfordshire | 6 |
| Devon | 6 |
| Greater Manchester | 4 |
| Northumberland, Durham and Tyne & Wear | 4 |
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 |
|---|---|---|---|
| Cambridgeshire and Peterborough | 6 | 4 | -2 |
| Berkshire, Buckinghamshire and Oxfordshire | 4 | 5 | +1 |
| Devon | 6 | 4 | -2 |
| Greater Manchester | 3 | 3 | +0 |
| Northumberland, Durham and Tyne & Wear | 3 | 4 | +1 |
| Derbyshire and Nottinghamshire | 2 | 3 | +1 |
| Gloucestershire and Wiltshire | 3 | 1 | -2 |
| Hampshire and Isle of Wight | 1 | 3 | +2 |
| Herefordshire, Worcestershire and Warwickshire | 2 | 2 | +0 |
| Surrey, East and West Sussex | 1 | 3 | +2 |
Import volume by transport
What this shows: Import value by transport mode used to bring goods into the UK.
Top 5 values
| Transport | £ |
|---|---|
| Air transport | 12,647,360 |
| Sea transport (not vehicle on ferry) | 2,046,285 |
| Roll on Roll off (RORO) | 753,285 |
| Other | 1,517 |
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 £ |
|---|---|---|---|
| Air transport | 5,871,680 | 6,775,680 | +904,000 |
| Sea transport (not vehicle on ferry) | 1,300,917 | 745,368 | -555,549 |
| Roll on Roll off (RORO) | 546,495 | 206,790 | -339,705 |
| Other | 1,517 | 0 | -1,517 |
Import volume by port
What this shows: Import value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| London Heathrow Airport | 10,041,434 |
| Birmingham Airport | 884,415 |
| Southampton | 772,453 |
| London Stansted Airport | 684,008 |
| Thamesport | 541,731 |
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 £ |
|---|---|---|---|
| London Heathrow Airport | 4,835,320 | 5,206,114 | +370,794 |
| Birmingham Airport | 299,416 | 584,999 | +285,583 |
| Southampton | 425,461 | 346,992 | -78,469 |
| London Stansted Airport | 262,966 | 421,042 | +158,076 |
| Thamesport | 369,847 | 171,884 | -197,963 |
| East Midlands Airport | 193,466 | 348,111 | +154,645 |
| Felixstowe | 278,578 | 145,196 | -133,382 |
| Dover | 215,694 | 104,978 | -110,716 |
| Eurotunnel | 206,156 | 73,068 | -133,088 |
| Leeds Bradford Airport | 121,125 | 85,153 | -35,972 |
Importer companies by SIC division
What this shows: Industry breakdown (SIC divisions) of importing companies.
Top 5 values
| SIC | Companies |
|---|---|
| Other manufacturing | 10 |
| Manufacture of other non-metallic mineral products | 9 |
| Manufacture of computer, electronic and optical products | 8 |
| Manufacture of electrical equipment | 8 |
| Manufacture of machinery and equipment n.e.c. | 7 |
Importer companies over time
What this shows: Monthly count of unique importing companies.
Latest 5
| Month | Companies |
|---|---|
| 2026-04 | 16 |
| 2026-03 | 11 |
| 2026-02 | 18 |
| 2026-01 | 13 |
| 2025-12 | 12 |
Top importers
What this shows: Companies with the highest number of months traded for this HS code.
| Company | Months traded |
|---|---|
| MULTI-LAB LIMITED | 120 |
| TOSOH QUARTZ, INC. | 85 |
| EXCELITAS NOBLELIGHT LIMITED | 74 |
| QUARTZTEC EUROPE LIMITED | 68 |
| G.E.W. (EC) LIMITED | 61 |
| H.I.G. EUROPE - FIBERCORE BIDCO LIMITED | 48 |
| KRYSTAL TECHNOLOGY UK LIMITED | 44 |
| FIRST LIGHT LAMPS LIMITED | 40 |
| HOWMET LIMITED | 36 |
| FIBERCORE LIMITED | 36 |
Importer company size by revenue band
What this shows: Distribution of importers across company revenue bands.
Top 5 values
| Revenue | Companies |
|---|---|
| 54m+ | 28 |
| 1m-15m | 19 |
| 15m-54m | 8 |
| 0-1m | 6 |
| Other | 4 |
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 | £ |
|---|---|
| United States | 4,830,696 |
| Singapore | 1,713,000 |
| Sweden | 412,205 |
| Taiwan | 342,909 |
| China | 315,200 |
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 £ |
|---|---|---|---|
| United States | 1,525,900 | 3,304,796 | +1,778,896 |
| Singapore | 913,558 | 799,442 | -114,116 |
| Sweden | 182,829 | 229,376 | +46,547 |
| Taiwan | 222,569 | 120,340 | -102,229 |
| China | 163,297 | 151,903 | -11,394 |
| Germany | 158,682 | 115,480 | -43,202 |
| Ireland | 93,210 | 108,542 | +15,332 |
| Thailand | 51,380 | 111,053 | +59,673 |
| Italy | 88,841 | 68,521 | -20,320 |
| France | 37,636 | 97,132 | +59,496 |
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) | 4,750,078 |
| Air transport | 4,137,780 |
| Roll on Roll off (RORO) | 421,075 |
| Road transport | 10,980 |
| Other | 1,331 |
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) | 1,546,803 | 3,203,275 | +1,656,472 |
| Air transport | 2,116,418 | 2,021,362 | -95,056 |
| Roll on Roll off (RORO) | 220,403 | 200,672 | -19,731 |
| Road transport | 10,980 | 0 | -10,980 |
| Other | 585 | 746 | +161 |
Export volume by port
What this shows: Export value handled by each UK port.
Top 5 values
| Port | £ |
|---|---|
| Liverpool Docks | 4,622,934 |
| Newcastle Airport | 1,388,650 |
| London Heathrow Airport | 1,214,712 |
| East Midlands Airport | 1,105,619 |
| Dover / Eurotunnel | 237,836 |
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 £ |
|---|---|---|---|
| Liverpool Docks | 1,419,659 | 3,203,275 | +1,783,616 |
| Newcastle Airport | 443,790 | 944,860 | +501,070 |
| London Heathrow Airport | 870,663 | 344,049 | -526,614 |
| East Midlands Airport | 566,064 | 539,555 | -26,509 |
| Dover / Eurotunnel | 113,490 | 124,346 | +10,856 |
| Dover | 106,913 | 74,770 | -32,143 |
| ZLC | 55,012 | 118,589 | +63,577 |
| London Stansted Airport | 129,133 | 25,302 | -103,831 |
| London Gateway Port | 124,866 | 0 | -124,866 |
| Manchester Airport | 51,486 | 30,569 | -20,917 |
Quick facts
HS code: 700231
Coverage: United Kingdom, most metrics for the last 24 months
Description: Tubes made from fused quartz or silica, known for their heat resistance