Sourcing modacrylic staple fibre from China

0% duty on modacrylic staple fibre

Read from the UK Trade Tariff on 1 October 2026, heading 5503 covers synthetic staple fibres not carded, combed or otherwise processed for spinning. Modacrylic shares commodity code 5503 30 00 00 with acrylic. The supplied facts contain only this relevant commodity line, so the table shows it alone.

The recorded duty for goods from China is 0%. The supplied tariff snapshot lists no anti-dumping or countervailing duty, suspension or attached import control for this line. Import VAT is separate from customs duty; see UK import duty and VAT.

Confirm the fibre composition and processing stage before choosing the commodity code. Carded fibre, wadding and non-wovens need separate classification. For the wider heading, see the aramid staple fibre guide.

Specify the modacrylic grade and intended blend

Specify modacrylic fibre identity, grade, fineness, cut length, crimp, colour, finish, moisture acceptance and bale packing. State whether the fibre will be spun, blended or made into non-wovens. Agree tolerances with the factory and retain an approved sample linked to the production lot.

Ask for composition evidence that distinguishes modacrylic from acrylic, rather than relying on a shared tariff code. Trial the supplied fibre with your intended blend and machinery. Agree how opening, carding, static, fibre breakage and heat exposure will be assessed.

For domestic upholstered furniture filling, confirm the applicable furniture fire regulations and ignitability testing requirements with the relevant product safety authority or a qualified compliance adviser, using the site's existing staple fibre guide as a starting point. Request evidence for the supplied material and intended use. For textile products sold in Great Britain, labels must show fibre content. Arrange testing and certification around the intended finished product.

Worked duty example

Illustrative example, not a quote: Illustrative trial batch of modacrylic staple fibre in compressed bales under 5503 30 00 00, invoiced at £16,000 free on board, with £1,200 of freight and insurance to the UK. The customs value is £17,200. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £17,200, so it is £3,440. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.

Inspection checklist

Identity: compare the lot documents and composition test with the approved modacrylic grade.

Fibre geometry: check fineness, cut-length distribution and crimp against the agreed tolerances.

Processing: run an opening and carding trial, checking static, clumping, breakage and blend uniformity.

Bales: check lot marks, net weight, moisture, contamination and packaging damage; retain arrival samples.

What goes wrong

Acrylic substitution can escape an invoice check because acrylic and modacrylic share a commodity code. Uneven cut length, excessive finish or a changed grade can cause clumping, static and unstable processing. Compare production samples with the approved sample before shipment.

A fibre-level flame claim can leave the buyer without evidence for the intended blend or finished construction. Agree the test sample and application before ordering, then check that delivered lots match the tested material. Use the quality inspection guide to plan sampling and record defects.

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.