Sourcing vinylidene fluoride from China
Vinylidene fluoride monomer from China carries 4% UK duty under the relevant residual line. Its named-substance suspension does not cover this monomer. For Great Britain, check UK REACH registration coverage and chemical classification, labelling and packaging before supply. Cambridge China Bridge sources vinylidene fluoride monomer.
Duty on vinylidene fluoride monomer
Read from the UK Trade Tariff on 1 October 2026, heading 2903 covers halogenated derivatives of hydrocarbons. For vinylidene fluoride monomer, the relevant residual line in the supplied tariff facts is 2903 59 00 90, covering other unsaturated fluorinated derivatives of acyclic hydrocarbons.
Goods from China carry 4% duty on this line, with no anti-dumping or countervailing duty recorded. Its 0.00 % suspension applies only to (perfluorobutyl) ethylene or perfluoro(4-methyl-2-pentene), rather than vinylidene fluoride. The tariff attaches an export control for waste; ask your customs broker to confirm its relevance and any requirements before arranging a waste shipment or return.
Confirm the substance identity and composition against the commodity code guidance. This guide covers the monomer supplied for polymerisation, rather than finished resin. For the wider heading context, see hexafluoropropylene sourcing.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Vinylidene fluoride monomer | 2903 59 00 90 | 4% | None |
Specify monomer purity and cylinder compatibility
Identify vinylidene fluoride monomer explicitly in the purchase specification. Agree assay, water, oxygen, acidity and the impurity profile your polymerisation process can accept. Ask the supplier to declare any stabiliser or other additive, provide the analytical methods and issue a certificate of analysis tied to the shipped batch.
Agree cylinder material, valve connection, closure protection, net contents and the return arrangement with your receiving site. Have your chemical carrier review the safety data sheet and proposed packaging before booking. Dangerous goods require correct packaging and hazard labelling, and the consignor must usually provide a document describing the goods that accompanies the shipment.
For Great Britain, HSE states that importing 1 tonne or more of a substance each year creates UK REACH registration responsibilities. Check whether your supply is covered by your registration or a properly appointed representative of the overseas manufacturer. Classification and labelling require scientific competence; chemicals must be correctly labelled and packaged before market supply. A safety data sheet is required when a hazardous chemical is supplied for use at work.
Worked duty example
Illustrative example, not a quote: Illustrative cylinder shipment for a small polymer producer's production trial under 2903 59 00 90, invoiced at £21,000 free on board, with £3,500 of freight and insurance to the UK. The customs value is £24,500. Duty at 4% is £980. Import VAT at 20% is charged on the customs value plus duty, £25,480, so it is £5,096. Import taxes total £6,076; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £980 of duty. The import duty and VAT guide explains each step.
Inspection checklist
Identity: match the monomer name and batch identification across the order, cylinder labels, analysis certificate and safety data sheet.
Analysis: compare assay, moisture, oxygen and declared additives with the agreed specification; arrange independent testing through a laboratory equipped to sample this monomer.
Cylinders: check cylinder identifiers, valve connections, protective closures, visible damage and the declared net contents against the packing list.
Documents: check registration coverage where applicable, chemical labels and the carrier's accepted transport documents before releasing the batch for use.
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What goes wrong
A certificate reporting only overall purity can hide an impurity profile that does not suit your process. An undeclared additive, excessive moisture or a different grade can make a batch unsuitable despite an apparently acceptable assay. Agree individual acceptance criteria and test the delivery before committing it to production.
Valve connections can differ from the receiving equipment, and analysis certificates can refer to a different batch from the cylinders delivered. Resolve these discrepancies before unloading or connection. Another purchasing error is assuming that the suspension shown against the residual tariff line covers every substance within it.
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 vinylidene fluoride from China?
The supplied tariff facts show 4% under 2903 59 00 90, with no anti-dumping or countervailing duty recorded. The named-substance suspension does not cover vinylidene fluoride monomer.
Do I need UK REACH registration for vinylidene fluoride?
HSE states that importing 1 tonne or more of a substance annually creates registration responsibilities. Confirm your coverage, including any arrangement through the overseas manufacturer's appointed representative.
What should a vinylidene fluoride analysis certificate show?
Ask for batch identity, assay, water, oxygen, relevant impurities and declared additives, with analytical methods. Agree acceptance criteria for your polymerisation process before ordering.
What should I check on the cylinders when they arrive?
Match cylinder and batch identifiers to the documents. Check valve compatibility, protective closures, visible damage and declared net contents. Have trained receiving staff resolve discrepancies before connection.