Sourcing Vitamin K3 from China
Vitamin K3 from China carries 0% UK duty when correctly classified under this heading, with no trade remedy recorded. For feed use, confirm the exact additive's authorisation status with the relevant feed authority; a supplier's grade claim does not establish permission for human supplements. Cambridge China Bridge sources Vitamin K3.

Zero duty, with classification checks
Read from the UK Trade Tariff on 1 October 2026, heading 2936 covers vitamins, provitamins, derivatives used primarily as vitamins and their intermixtures. The supplied lines for other unmixed vitamins and derivatives, and other products including natural concentrates, carry 0% duty from China. No anti-dumping or countervailing duty or suspension is recorded.
The UK Trade Tariff attaches export controls for dangerous chemicals and waste to the other-unmixed-vitamins line, and waste export controls to the other-products line. Ask your customs broker to confirm their relevance to the shipment. HSE states that imports have no prior informed consent notification obligation. Waste shipment controls apply only where the material is waste.
The table presents alternative product forms sharing tariff lines, rather than separate rates. Confirm the commodity code using the complete composition, chemical identity, intended use and any carrier. Do not assume a formulated feed premix belongs here. See the wider vitamins guide for the rest of the heading.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Vitamin K3, unmixed; confirm classification | 2936 29 00 00 | 0% | None |
| Vitamin intermixtures containing Vitamin K3; confirm classification | 2936 90 00 00 | 0% | None |
Specify the Vitamin K3 form and assay basis
Write the chemical name into the purchase specification, including whether the material is menadione sodium bisulphite or menadione nicotinamide bisulphite. State whether assay means the supplied compound or menadione equivalent. Agree moisture, particle size, chromium testing, other contaminant checks and any carrier or coating.
For animal feed, confirm the exact additive's current authorisation and conditions before ordering. Confirm the Chinese manufacturer's representative in Great Britain and the applicable declaration arrangements. For human supplements, confirm the proposed vitamin form's eligibility with the relevant food authority; a feed-grade certificate does not establish suitability for that market.
Request a certificate of analysis for the shipment batch, the assay method, stability evidence and storage instructions. Agree sealed packing that protects the powder from moisture and light, and ask for compatibility evidence for the buyer's intended premix.
Worked duty example
Illustrative example, not a quote: Illustrative pilot pallet of menadione sodium bisulphite under 2936 29 00 00, invoiced at £3,500 free on board, with £2,500 of freight and insurance to the UK. The customs value is £6,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £6,000, so it is £1,200. 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: check the chemical name and batch number against the order, certificate and container labels.
Assay: test a representative shipment sample against the agreed menadione-equivalent basis, moisture specification and analytical method.
Contaminants: check batch-specific chromium and other agreed contaminant results, including the laboratory method and reporting limits.
Packing: check liners, seals, caking, net weights and remaining shelf life during inspection.
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What goes wrong
A quotation may describe the assay of the whole compound while the buyer expects menadione equivalent. An apparently matching certificate can therefore conceal a specification mismatch. Keep the chemical form, assay basis and test method together in the order, and check the shipment batch rather than a sample certificate.
Damaged liners and moisture can leave powder caked or unsuitable for the buyer's mixing process. Carrier substitutions can also change the agreed composition. Keep affected goods separate, photograph the packing and arrange independent sampling before accepting a supplier's explanation.
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 Vitamin K3 from China?
The supplied heading 2936 lines carry 0% duty from China, with no anti-dumping or countervailing duty recorded. Confirm the exact product's classification before declaring it.
Can I use Chinese Vitamin K3 in animal feed?
Confirm feed-additive authorisation requirements with the relevant feed authority. Check the exact chemical form and current conditions, and confirm the Chinese manufacturer's representative in Great Britain before shipment.
Does feed-grade Vitamin K3 qualify for human supplements?
A feed-grade claim does not establish permission. Confirm the proposed vitamin form's eligibility for human supplements with the relevant food authority before buying for that use.
What should a Vitamin K3 batch certificate show?
The chemical form, shipment batch, assay basis and method, moisture and agreed contaminants including chromium. Request stability evidence and match the certificate to the delivered packing.