Sourcing electrospun filter media from China
Electrospun nanofibre nonwoven filter media from China normally pays 4% UK duty; qualifying named suspensions can reduce this to 0%. Check UK REACH restrictions on materials and finishes, and agree filtration efficiency and pressure drop under the same test conditions. Cambridge China Bridge sources electrospun nanofibre nonwoven filter media.
Standard duty and narrowly defined suspensions
Heading 5603 covers nonwovens, whether or not impregnated, coated, covered or laminated. This guide concerns electrospun nanofibre filter media supplied as material for conversion. The table gives candidate lines for man-made filament constructions, rather than a confirmed classification for every nanofibre composite. Record the complete construction, including the support layer, total mass per unit area and any coating.
Read from the UK Trade Tariff on 30 September 2026, the selected lines carried 4% standard duty for goods from China, with no anti-dumping or countervailing measure recorded. Some lines show 0% suspensions restricted to named products, including specified polyester nonwovens, insulating paper or surgical and medical protective garments. A nanofibre layer or filtration use alone does not establish eligibility. No import controls are recorded on the selected lines in the supplied tariff data.
Confirm the commodity code against the complete material and the exact suspension wording before declaring the goods. Finished masks and other made-up products need separate classification checks. For the wider nonwoven filter family, see needle-punched nonwoven filter felt.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Other coated or covered man-made filament nonwovens, up to 25 g/m² | 5603 11 10 90 | 4% | None |
| Other man-made filament nonwovens, up to 25 g/m² | 5603 11 90 90 | 4% | None |
| Other coated or covered man-made filament nonwovens, over 25 to 70 g/m² | 5603 12 10 90 | 4% | None |
| Other man-made filament nonwovens, over 25 to 70 g/m² | 5603 12 90 90 | 4% | None |
| Other coated or covered man-made filament nonwovens, over 70 to 150 g/m² | 5603 13 10 90 | 4% | None |
| Other man-made filament nonwovens, over 70 to 150 g/m² | 5603 13 90 90 | 4% | None |
| Coated or covered man-made filament nonwovens, over 150 g/m² | 5603 14 10 00 | 4% | None |
| Other man-made filament nonwovens, over 150 g/m² | 5603 14 80 90 | 4% | None |
Specify the nanofibre layer and filtration conditions
Specify the nanofibre polymer, supporting nonwoven, layer arrangement, bonding method and which face meets the incoming flow. Agree fibre diameter distribution, nanofibre coverage, total mass per unit area, thickness, width, roll length and tolerances. Set filtration efficiency and pressure-drop acceptance criteria with the challenge particles, flow conditions, conditioning and test method stated. Ask for results on the complete composite, rather than an unsupported nanofibre layer.
UK REACH restrictions can limit, ban or set conditions on substances in articles. Ask for material and finish declarations covering the polymer, adhesive and any surface treatment, and check applicable restrictions. Media intended for masks or protective equipment needs evidence appropriate to the finished product; food-contact uses need food-contact evidence. Agree the intended application before arranging testing and certification.
Worked duty example
Illustrative example, not a quote: Illustrative order: 40 rolls of electrospun nanofibre nonwoven filter media, assuming this code and no qualifying suspension under 5603 12 90 90, invoiced at £14,000 free on board, with £2,200 of freight and insurance to the UK. The customs value is £16,200. Duty at 4% is £648. Import VAT at 20% is charged on the customs value plus duty, £16,848, so it is £3,369.60. Import taxes total £4,017.60; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £648 of duty. The import duty and VAT guide explains each step.
Inspection checklist
Filtration: match the batch report to the delivered construction and compare efficiency and pressure drop under the agreed particle challenge and flow conditions.
Layer integrity: inspect across the width for bare patches, pinholes, beads and uneven coverage; check adhesion after agreed flexing, pleating and handling trials.
Dimensions: measure width, roll length, thickness and mass per unit area against the order; check winding tension, telescoped edges, joins and crushed cores.
Traceability and packing: match roll labels to batch records and retained samples; check wrapping for moisture, dirt and abrasion damage. Include these checks in the inspection brief.
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What goes wrong
A supplier may report efficiency at a different flow condition, making results unsuitable for comparison. Uneven deposition can leave weak filtration areas, while excess deposition can raise pressure drop. The nanofibre layer may detach during pleating or rub off during unwinding. Trial the delivered composite in your converting process and compare batch samples with the approved material before releasing stock.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For repeat volumes, see container programmes.
Frequently asked questions
What is the UK import duty on electrospun nanofibre filter media from China?
The selected heading 5603 lines carry 4% standard duty. A qualifying named suspension may reduce this to 0%; check the exact product wording. No anti-dumping or countervailing measure is recorded.
Which specification should I send the factory?
State the nanofibre polymer, support layer, bonding, mass per unit area and roll dimensions. Agree filtration efficiency and pressure drop using the same particles, flow conditions and conditioning.
Does a filter-media test report cover a finished mask?
Media intended for masks or protective equipment needs evidence appropriate to the finished product. Agree that end use before ordering and assess performance after conversion.
How do I check whether the nanofibre layer stays attached?
Inspect for bare patches and shedding, then trial flexing, pleating and unwinding under agreed conditions. Compare adhesion and filtration results before and after the trial.