Sector guides

Sourcing cyclohexyl isocyanate from China

Cyclohexyl isocyanate from China falls within the residual isocyanate line at 6% UK duty. The named-substance suspension does not list it. Before supply in Great Britain, the importer must ensure correct chemical classification, labelling and packaging. Cambridge China Bridge sources cyclohexyl isocyanate.

Written by Bono Xu, Founder, Cambridge China Bridge · 4 min read · Updated 2026-11-09

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Cyclohexyl isocyanate: 6% duty

Read from the UK Trade Tariff on 1 October 2026, heading 2929 covers compounds with other nitrogen function. Cyclohexyl isocyanate belongs within the residual isocyanate line, 2929 10 00 90. The table shows purchasing and packing options under that same line.

The supplied tariff facts show 6% duty for goods from China and no anti-dumping or countervailing measure on this line. Its 0% suspension applies to named substances; cyclohexyl isocyanate is not listed. The tariff also attaches an export control for waste. Waste shipment controls apply only to waste material. Ask your customs broker to confirm the listed control's relevance to your shipment.

Confirm the substance identity and whether the consignment is the substance itself or a formulated mixture before choosing the commodity code. For other products within the heading, see isocyanates, TDI and MDI.

UK duty on these lines for goods of Chinese origin (one code per row), read from the UK Trade Tariff on 1 October 2026.
GoodsCommodity codeDutyAnti-dumping or countervailing duty on China
Cyclohexyl isocyanate in sealed laboratory bottles2929 10 00 906%None

Specify cyclohexyl isocyanate by identity and assay

Write the full chemical name into the purchase specification. Ask for the substance identifier, assay method, purity, water content, acidity, appearance and impurity profile. Agree acceptance criteria with the laboratory using the material. Specify pack size, closure, dry packing conditions, storage instructions and shelf life, and request a certificate of analysis for each batch.

Settle UK REACH coverage before ordering. If a Great Britain importer plans to import one tonne or more of a substance annually, confirm with HSE whether registration is needed or whether an only representative arrangement covers the imports. Classification is the chemical supplier's responsibility; correct labelling and packaging are required before supply. A safety data sheet is required for a hazardous chemical supplied for workplace use.

Worked duty example

Illustrative example, not a quote: Illustrative order: sealed bottles of cyclohexyl isocyanate for a small business's synthesis trials under 2929 10 00 90, invoiced at £2,880 free on board, with £980 of freight and insurance to the UK. The customs value is £3,860. Duty at 6% is £231.60. Import VAT at 20% is charged on the customs value plus duty, £4,091.60, so it is £818.32. Import taxes total £1,049.92; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £231.60 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Identity: check that the bottle or drum label, invoice, safety data sheet and batch certificate all describe cyclohexyl isocyanate.

Analysis: compare the batch assay and impurity results with the agreed specification; arrange independent identity and purity testing through a suitably equipped laboratory.

Packing: check closures, seals, leakage, damage and batch markings before opening; compare storage and handling instructions with the agreed packing plan.

Release: keep doubtful batches aside pending investigation, and record which packs and batch certificates were accepted. See quality inspection.

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What goes wrong

A generic isocyanate quotation can conceal the wrong substance or an unsuitable grade. A certificate without a matching batch reference cannot establish what arrived. Moisture, poor sealing and inconsistent assay methods can also undermine an isocyanate order. Agree the analytical method and packing conditions before approving production.

Do not assume the suspension available for another isocyanate applies to cyclohexyl isocyanate. Keep the identity evidence separate from the tariff decision, and resolve discrepancies between the label, safety data sheet and certificate before releasing the batch.

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 cyclohexyl isocyanate from China?

The supplied tariff facts show 6% under 2929 10 00 90. Cyclohexyl isocyanate is not named in the suspension. No anti-dumping or countervailing measure is recorded on this line.

Does a small cyclohexyl isocyanate order need UK REACH registration?

Before buying, give HSE your annual import quantities for each substance and confirm whether registration is needed, rather than assessing each order alone. Confirm with HSE whether any only representative arrangement covers your imports.

What should the cyclohexyl isocyanate certificate show?

Ask for the chemical identity, matching batch reference, assay method, purity, water content and agreed impurity results. A generic specification sheet is not a batch certificate.

Can I rely on the Chinese supplier's chemical label?

Check it against your Great Britain supply duties. The supplier is responsible for classification, and everyone in the supply chain must ensure correct labelling and packaging before supply.

Sources

  1. UK Trade Tariff — commodity codes and duty
  2. HSE: Duties of a GB-based importer
  3. HSE: How does classification work?
  4. HSE: Safety Data Sheets
  5. Environment Agency: Waste export and import

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