Sourcing alpha-methylstyrene from China

UK duty on alpha-methylstyrene

Read from the UK Trade Tariff on 1 October 2026, heading 2902 covers cyclic hydrocarbons. The proposed line for alpha-methylstyrene monomer is 2902 90 00 00, Other. It carries 0% duty for goods from China, with no anti-dumping or countervailing duty and no suspension shown. The table presents purchasing descriptions within this same line, rather than separate tariff subdivisions.

The supplied tariff attaches an export control for waste to this line. Waste shipment controls apply only where the material is waste. If buying recovered material or residues, confirm their waste status and the applicable requirements with your customs broker before shipment; the attached measure is labelled as an export control.

Confirm the commodity code using the composition and intended product, particularly where the offer is a mixture or a resin rather than monomer. The wider cyclic hydrocarbons guide covers neighbouring products.

Specify monomer purity and inhibitor content

Name alpha-methylstyrene explicitly in the purchase specification. Agree purity, the impurity profile, water, colour and analytical methods. Ask for actual batch results, including any styrene and cumene present, rather than a generic specification sheet. State whether recovered material is acceptable.

Agree the inhibitor identity and content, if used, and obtain written storage and transport instructions for that formulation. Confirm with HSE whether your planned annual imports into Great Britain require UK REACH registration or can be covered through an only representative. Before sale, substances must be correctly labelled and packaged; hazardous chemicals supplied for workplace use require safety data sheets.

Worked duty example

Illustrative example, not a quote: Illustrative order: 20 tonnes of alpha-methylstyrene monomer in a tank; FOB and freight values are illustrative. under 2902 90 00 00, invoiced at £18,000 free on board, with £3,000 of freight and insurance to the UK. The customs value is £21,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £21,000, so it is £4,200. 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 the product name, batch references and analytical fingerprint to the ordered alpha-methylstyrene.

Purity: test representative samples against the agreed purity, impurity, water and colour specification and batch certificate.

Stability: check any declared inhibitor content and compare the transport record with the supplier's written storage instructions.

Packing: inspect seals, leaks and contamination; match labels and safety data sheets to the consignment. For tanks, review cleaning records.

What goes wrong

An offer described only as methylstyrene leaves the chemical identity unclear. A generic certificate can conceal differences between batches, while unspecified inhibitor content makes acceptance difficult. Residues from earlier cargo can also alter colour or introduce impurities.

Set acceptance tests before ordering, retain traceable samples and hold discrepant material pending investigation. Use the quality inspection guide to define who samples, tests and approves the shipment.

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.