Sourcing methyl ethyl ketoxime from China

Methyl ethyl ketoxime duty and suspension

Read from the UK Trade Tariff on 2 October 2026, heading 2928 covers organic derivatives of hydrazine or hydroxylamine. Methyl ethyl ketoxime, also called butanone oxime, is listed under 2928 00 90 70. The table contains the dedicated substance line; other chemicals in the heading are covered by our oximes and hydrazine derivatives guide.

The ordinary duty for goods from China is 6%, with an autonomous suspension to 0%. The suspension excludes mixtures, preparations and products made from different components containing the substance. The supplied tariff record lists no anti-dumping or countervailing duty for this line.

The tariff attaches dangerous-chemical export and waste-export controls. Ask your customs broker to confirm their relevance to the proposed transaction, particularly any return shipment or waste movement. Before ordering, confirm the substance identity and composition using our commodity code guide; do not assume a formulated coating uses the same code.

Specify methyl ethyl ketoxime by batch

Write butanone oxime and chemical identity 96-29-7 into the purchase specification. Agree assay, water content, colour, residual butanone and hydroxylamine limits, test methods, packaging and shelf life. Require a certificate of analysis tied to each production batch, rather than a generic specification sheet.

For Great Britain, confirm the applicable UK REACH registration threshold and any only-representative coverage with HSE, taking account of your annual imports of the substance. Chemicals placed on the GB market must be classified and labelled under the GB classification and labelling rules. Obtain an English safety data sheet and check it against the supplied material.

Worked duty example

Illustrative example, not a quote: 20 tonnes of methyl ethyl ketoxime, illustrative order under 2928 00 90 70, invoiced at £60,000 free on board, with £4,000 of freight and insurance to the UK. The customs value is £64,000. Duty at 6% is £3,840. Import VAT at 20% is charged on the customs value plus duty, £67,840, so it is £13,568. Import taxes total £17,408; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £3,840 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Identity: match the purchase order, certificate of analysis, safety data sheet and container labels to butanone oxime and the same batch.

Analysis: independently sample the shipment and compare assay, water content, colour and residual impurities with the agreed specification.

Containers: check seals, closures, leaks, corrosion and batch markings before accepting the delivery.

Documents: check UK REACH coverage and current hazard information. Safety data sheets are required for hazardous chemicals supplied for use at work.

What goes wrong

An acceptable assay can hide excessive water or residual impurities. A generic analysis certificate may describe a different batch, while damaged closures can leave the delivered material unsuitable for your process. Compare the actual shipment with the approved sample and agreed test methods.

An old safety data sheet or an unverified registration arrangement can leave the import checks unfinished. A mixture containing methyl ethyl ketoxime also falls outside the stated suspension. Resolve composition and documents before shipment, and use our inspection guide to define the acceptance 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.