Sector guides

Sourcing oxytetracycline from China

Oxytetracycline active ingredient from China carries 0% UK duty under the tetracycline line, with no listed trade remedies. Human-medicine importers must register with the MHRA; veterinary imports into Great Britain require Veterinary Medicines Directorate registration. Cambridge China Bridge sources oxytetracycline active ingredient.

Written by Bono Xu, Founder, Cambridge China Bridge · 4 min read · Updated 2026-11-12

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Oxytetracycline duty and classification

Read from the UK Trade Tariff on 5 October 2026, heading 2941 covers antibiotics. Oxytetracycline active ingredient falls within the tetracyclines, derivatives and salts line, 2941 30 00 00. The table shows product forms sharing this tariff line, rather than separate commodity codes. Finished medicines in doses or retail packs have different classification.

The supplied tariff record shows 0% duty for goods from China, no anti-dumping or countervailing measures and no suspensions. It attaches an export control for waste. If the consignment is waste, the importer should confirm the applicable requirement with their customs broker before shipping. Import VAT is normally 20%; see UK import duty and VAT.

Give your broker the exact chemical form, composition and intended use to confirm the commodity code. For another active ingredient within this heading, see the doxycycline guide.

UK duty on these lines for goods of Chinese origin (one code per row), read from the UK Trade Tariff on 5 October 2026.
GoodsCommodity codeDutyAnti-dumping or countervailing duty on China
Oxytetracycline base2941 30 00 000%None

Specify the oxytetracycline form and intended use

Specify oxytetracycline base, hydrochloride or the required hydrate expressly. Agree the applicable pharmacopoeia monograph, assay basis, water content, related substances, residual solvents and particle size where relevant to your process. Request a batch certificate of analysis and methods matching the agreed specification. Set packaging, storage conditions and transport monitoring from the supplier's stability information.

For human medicines, UK active-substance importers must register with the MHRA and comply with good manufacturing and distribution practice. MHRA guidance requires exporting-authority written confirmation of manufacturing standards and regulatory oversight unless the manufacturer is in an approved country. Ask the importer to confirm the documentation needed for the Chinese manufacturing site before ordering.

For veterinary medicines, businesses in Great Britain importing or distributing active substances must register with the Veterinary Medicines Directorate and follow the applicable manufacturing or distribution practice requirements. Establish the intended customer and use before selecting the supplier. Arrange factory verification around the actual manufacturing site and oxytetracycline supply.

Worked duty example

Illustrative example, not a quote: 500 kg of oxytetracycline hydrochloride active ingredient, illustrative only under 2941 30 00 00, invoiced at £25,000 free on board, with £1,500 of freight and insurance to the UK. The customs value is £26,500. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £26,500, so it is £5,300. 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 form on the purchase order, container labels and certificate of analysis; arrange identity testing against the agreed specification.

Batch documents: match the manufacturer, site, batch reference and test results; check that manufacturing-quality evidence covers the material being supplied.

Laboratory results: check assay on the agreed basis, water content, related substances and residual solvents; investigate differences between supplier and receiving-laboratory results.

Packaging and transit: inspect seals, liners, moisture ingress and caking; review storage instructions and transport records before accepting the batch.

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What goes wrong

A quotation says only 'oxytetracycline', leaving the salt or hydrate unclear. An assay reported on a dried basis is compared with an as-received specification, or the certificate belongs to a different batch. Agree the form and reporting basis before comparing offers.

A trader supplies quality documents for a different manufacturing site, or transport conditions undermine the agreed quality. Keep affected stock separate while discrepancies are investigated. A batch certificate alone does not settle importer registration or the written-confirmation question.

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 oxytetracycline from China?

The supplied tariff record shows 0% under 2941 30 00 00, with no anti-dumping or countervailing measures and no suspensions. Import VAT is normally 20%.

Do I need registration to import oxytetracycline active ingredient?

For human medicines, UK importers must register with the MHRA. For veterinary medicines, importers based in Great Britain must register with the Veterinary Medicines Directorate.

Which documents should I request from the Chinese factory?

Request the exact specification, batch certificate of analysis, manufacturing-site quality evidence and storage information. For human-medicine use, confirm exporting-authority written-confirmation requirements with your importer.

Can I substitute oxytetracycline hydrochloride for the base?

Do not assume interchangeability. Ask your formulation team to approve the chemical form, assay basis and specification before placing an order or accepting a substitution.

Sources

  1. UK Trade Tariff — commodity codes and duty
  2. Medicines: register to manufacture, import or distribute active substances
  3. List of approved countries
  4. Register for veterinary active substances

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