Sourcing cyclohexanone oxime from China

Cyclohexanone oxime: candidate duty of 6%

Read from the UK Trade Tariff on 2 October 2026, heading 2928 covers organic derivatives of hydrazine or hydroxylamine. Cyclohexanone oxime is not separately named in the supplied lines. The candidate residual code, 2928 00 90 90, carries 6% duty for goods from China, with no anti-dumping or countervailing measure recorded.

The residual line has a 0% suspension limited to named substances; its supplied wording does not name cyclohexanone oxime. Do not budget on that suspension without confirmation. Have your broker confirm the commodity code against the substance identity and composition. For other substances, see the wider oximes and hydrazine derivatives guide.

The UK Trade Tariff attaches Home Office controlled-drug import and export controls, dangerous-chemical export controls and waste export controls to the residual line. These attachments do not establish whether cyclohexanone oxime itself needs a licence. Ask your customs broker to confirm their application to the actual goods from China. Home Office guidance requires licence applications for imports or exports of controlled drugs or precursor chemicals.

Specify assay and residual cyclohexanone

Specify the substance identity, intended process, assay and whether the result is on a dry or as-received basis. Agree water content, residual cyclohexanone, residual hydroxylamine, other impurity limits, colour and physical form. Set the sampling and analytical methods, packaging, storage conditions and a batch-specific certificate of analysis.

For Great Britain, check the UK REACH registration route, including any only-representative coverage described in our wider guide. HSE states that importing a substance at or above 1 tonne per year requires registration. Classification is the supplier's responsibility regardless of quantity, and classification and labelling need scientific competence.

Worked duty example

Illustrative example, not a quote: 1 tonne of drummed cyclohexanone oxime (illustrative values, not a quotation) under 2928 00 90 90, invoiced at £4,000 free on board, with £2,500 of freight and insurance to the UK. The customs value is £6,500. Duty at 6% is £390. Import VAT at 20% is charged on the customs value plus duty, £6,890, so it is £1,378. Import taxes total £1,768; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £390 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Identity: match the order, container labels, certificate of analysis and English safety data sheet to cyclohexanone oxime and the delivered batch.

Analysis: independently check assay, water and agreed residual impurities using the contractual methods; compare the same reporting basis.

Condition: inspect for unexpected colour, contamination, moisture ingress and caking; retain a representative sample before releasing stock.

Packaging: check seals, leakage, batch traceability and label accuracy. Importers share responsibility for correct labelling and packaging before supply in Great Britain.

What goes wrong

A certificate reporting dry-basis assay can conceal a mismatch with an as-received specification. Residual cyclohexanone, water or contamination can also make material unsuitable for your process. Define rejection criteria before ordering and trial the actual batch rather than relying only on a supplier's sample.

Another purchasing error is applying a suspension for a different oxime to cyclohexanone oxime. Keep substance identity, tariff classification and registration coverage together in the order file. Use the quality inspection guide to agree sampling and release checks.

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.