Sourcing semicarbazide HCl from China
Budget for 6% UK duty on semicarbazide hydrochloride under the residual line, subject to classification confirmation. The heading includes 0% rates for other substances. Check UK REACH coverage and chemical labelling before importing for business use or supply. Cambridge China Bridge sources semicarbazide hydrochloride.
Semicarbazide hydrochloride duty and controls
Read from the UK Trade Tariff on 2 October 2026, heading 2928 covers organic derivatives of hydrazine or hydroxylamine. Semicarbazide hydrochloride is not separately named in the supplied lines. Use 2928 00 90 90 as the candidate residual code and budget for its 6% China duty. The snapshot records no anti-dumping or countervailing duty.
The residual line has a 0% suspension restricted to named substances. Its reference to a semicarbazone hydrochloride does not name semicarbazide hydrochloride, so do not assume relief. The tariff attaches Home Office controlled-drug import and export controls, dangerous-chemical export control and waste export control. Confirm their applicability to this substance and shipment with your customs broker. Controlled-drug or precursor imports require a licence where the substance falls within that regime.
Confirm the commodity code using the chemical identity, composition and supplied form. Only the residual line is relevant to this focused table; the other supplied lines name different chemicals. See the wider heading guide for those products. Check the dangerous-chemical listing separately: listed chemical importers must report annual quantities. Waste shipment controls apply only where the material is waste.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Semicarbazide hydrochloride, subject to classification confirmation | 2928 00 90 90 | 6% | None |
Specify the hydrochloride salt and assay
Write semicarbazide hydrochloride in full and request the supplier's chemical identifier. Distinguish the hydrochloride salt from semicarbazide and from semicarbazone derivatives. Agree the intended laboratory or process use, assay method, reporting basis, water content, impurity limits, appearance and container material. Ask for a certificate of analysis tied to the production batch.
For Great Britain, ask HSE to confirm your UK REACH registration route, whether only-representative coverage is available and any English safety data sheet requirements for your annual imports. Check the current chemical classification. Chemicals must be correctly labelled and packaged before market supply. Agree storage conditions and sampling arrangements before ordering.
Worked duty example
Illustrative example, not a quote: A small laboratory-reagent batch in sealed containers, illustrative only under 2928 00 90 90, invoiced at £2,500 free on board, with £980 of freight and insurance to the UK. The customs value is £3,480. Duty at 6% is £208.80. Import VAT at 20% is charged on the customs value plus duty, £3,688.80, so it is £737.76. Import taxes total £946.56; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £208.80 of duty. The import duty and VAT guide explains each step.
Inspection checklist
Identity: match the hydrochloride name and chemical identifier across the order, analysis certificate, safety data sheet and container labels.
Assay: have an independent laboratory check a representative batch sample against the agreed assay, water and impurity specification.
Packing: inspect seals, closures and liners for damage, leakage or moisture ingress; compare any caking or discolouration with the approved sample.
Records: reconcile batch labels with analysis certificates and the packing list. Hold discrepancies for investigation before releasing material into use. See quality inspection.
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What goes wrong
A quote can describe semicarbazide while the paperwork describes a different salt or derivative. An assay result can also be misleading when the certificate does not identify its test method or reporting basis. Require matching identity records and a batch-specific certificate, then test the supplied material against the written specification.
Another avoidable error is claiming the residual-line suspension because its wording mentions a semicarbazone hydrochloride. Match the exact substance rather than a similar name. Investigate damaged seals, moisture and unexpected appearance before accepting 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 semicarbazide hydrochloride from China?
Budget for 6% under candidate code 2928 00 90 90, subject to classification confirmation. The supplied suspension does not name semicarbazide hydrochloride; no anti-dumping or countervailing duty is recorded.
Does semicarbazide hydrochloride need UK REACH registration?
Ask HSE to confirm your registration obligation for the substance and annual import quantity, and whether coverage through the supplier's only representative is available. Confirm the route before importing into Great Britain.
Does the tariff's Home Office control mean this chemical needs a licence?
The residual code carries a control flag. It does not establish this substance's status. Ask your broker to confirm applicability; controlled-drug or precursor imports require a licence where that regime applies.
What should I test before accepting the batch?
Check chemical identity, assay using the agreed method, water content and specified impurities. Match results to the delivered batch and inspect container seals and appearance.