Sourcing polyphenylsulfone resin from China
Polyphenylsulfone resin from China carries 0% UK duty on the relevant heading 3911 lines, with no anti-dumping or countervailing duty recorded. Match the polymer identity and additive content to the tariff description, and check the UK REACH position of its monomers and additives. Cambridge China Bridge sources polyphenylsulfone resin.
Buying from China for a business? How our UK China sourcing agent service works · China sourcing agent for small orders and first imports
0% duty on the relevant resin lines
Read from the UK Trade Tariff on 1 October 2026, heading 3911 covers several resin families in primary forms. Polyphenylsulfone belongs within the sulphone polymer family. The named composition under 3911 90 19 35 includes additives not exceeding 20% by weight. The table separates commercial variants sharing that code; it does not identify separate tariff subdivisions.
The named line and residual line 3911 90 19 90 both carry 0% duty for goods from China. The supplied tariff record shows no anti-dumping or countervailing measures and no suspensions on either line. It attaches import and export waste controls. Waste shipment controls apply only to material classed as waste; for a waste shipment from China, confirm the applicable requirements with your customs broker before dispatch.
Obtain the polymer identity, full additive composition and physical form before confirming the commodity code. Treat the residual line as a candidate requiring verification for formulations outside the named description. For wider heading coverage, see the polyethersulfone resin guide.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Natural polyphenylsulfone resin, meeting the named composition | 3911 90 19 35 | 0% | None |
| Other condensation polymers: candidate line for other PPSU formulations | 3911 90 19 90 | 0% | None |
Specify the PPSU grade and its intended process
Write polyphenylsulfone in full on the purchase specification. Name the producer and grade, injection or extrusion use, natural or coloured material, filler type and content, and whether recycled material is permitted. Agree melt viscosity or flow, moisture, colour and mechanical properties using the supplier's stated test methods. Request sealed moisture-resistant packing and a batch certificate of analysis.
Polymers themselves are exempt from UK REACH registration; confirm with HSE whether registration requirements apply to their monomers, reactants and additives. Obtain composition information and establish the registration position before ordering. Request a safety data sheet and review the hazard information for the actual formulation. Agree processing and drying instructions, then trial the sample in your own tooling.
Worked duty example
Illustrative example, not a quote: Illustrative order: one tonne of natural polyphenylsulfone resin granules under 3911 90 19 35, invoiced at £18,000 free on board, with £1,500 of freight and insurance to the UK. The customs value is £19,500. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £19,500, so it is £3,900. 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: match bag labels, producer, grade and batch references to the purchase order and certificate; investigate substituted sulphone polymers.
Composition: check declared filler, pigment and other additives against the specification and the named tariff composition.
Condition: inspect liners and seals, granules, fines, black specks and mixed colours; measure moisture against the agreed specification.
Processing: mould a retained batch sample using the agreed drying conditions and compare appearance, dimensions and mechanical results with the approved sample.
Working out your own order? Send us the product on WhatsApp and we reply the same working day: WhatsApp us
What goes wrong
A description such as sulphone resin leaves room for substitution with a different polymer or grade. Changed filler content, undeclared recycled material, contamination and moisture can produce inconsistent mouldings. A matching bag label does not establish that the contents match the approved sample.
Keep a retained sample from each batch and investigate unexplained processing changes before releasing material to production. Agree the sampling and acceptance checks through the quality inspection guide. Resolve missing composition information before treating the named tariff line or the polymer registration exemption as sufficient.
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 polyphenylsulfone resin from China?
The relevant lines 3911 90 19 35 and 3911 90 19 90 carry 0% duty in the supplied tariff record. No anti-dumping or countervailing duty is recorded.
Which commodity code covers PPSU resin?
Check 3911 90 19 35 for the named polymer with additives not exceeding 20% by weight. Other formulations need a composition-based classification check; do not select a code from the trade name alone.
Does PPSU resin need UK REACH registration?
The polymer itself is exempt from registration. Obtain the identities of its monomers, reactants and additives, and ask HSE to confirm their registration position before importing.
What should I check before using an imported batch?
Check grade identity, additive content, moisture, contamination and batch documentation. Run a moulding trial against the approved sample before releasing the batch to production.