Sourcing insulin active ingredient from China
Insulin and its salts from China carry 0% UK import duty, with no trade remedy recorded for this line. Human-medicine active-substance importers need MHRA registration; confirm the applicable GMP requirements and insulin-specific import route with MHRA before ordering. Cambridge China Bridge sources insulin active ingredient.

Insulin active ingredient: 0% duty
Read from the UK Trade Tariff on 7 October 2026, heading 2937 covers hormones and their derivatives and structural analogues. Insulin and its salts fall under 2937 12 00 00. The table shows product descriptions within this same tariff line. See the wider hormones and steroids guide for the rest of the heading.
The insulin line carries 0% duty for goods from China, with no anti-dumping or countervailing measure and no suspension recorded. The tariff attaches an export control for waste. Waste shipment controls apply only where the material is waste. Ask your customs broker to confirm the relevance of this control, particularly before returning rejected material.
Confirm the exact substance, salt and presentation using finding your commodity code. This guide concerns active ingredient. Medicines made up in measured doses and bulk medicament mixtures have different headings, as explained in the wider guide.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Insulin active ingredient | 2937 12 00 00 | 0% | None |
Specify the insulin identity and batch evidence
Specify the exact insulin identity, whether it is recombinant, and any salt form. Agree the pharmacopoeial monograph, identity tests, assay or potency method, related substances and relevant process impurities. Set acceptance criteria with the receiving pharmaceutical manufacturer rather than accepting a supplier's description of pharmaceutical grade.
Request the actual manufacturing site's details, evidence of good manufacturing practice, a batch certificate of analysis, analytical methods, storage conditions and retest date. Agree sealed packaging, transport conditions and how temperature records will be supplied. Use factory verification to check the producer behind a trading company.
UK businesses importing or distributing human-medicine active substances must register with the MHRA. Manufacture of biological active substance is treated as partial manufacture of the biological medicinal product. Ask the MHRA to confirm the registration or authorisation route and the written-confirmation documents needed for your proposed insulin consignment before ordering.
Worked duty example
Illustrative example, not a quote: Illustrative 800 g trial batch of insulin active ingredient under 2937 12 00 00, invoiced at £40,000 free on board, with £800 of freight and insurance to the UK. The customs value is £40,800. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £40,800, so it is £8,160. 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: match the insulin name, salt form, manufacturer and batch on the containers, certificate of analysis and purchase specification.
Laboratory: arrange independent identity, assay or potency and related-substance testing against the agreed methods and acceptance criteria.
Documents: check manufacturing-site evidence, batch results, retest date and the documents agreed with the receiving pharmaceutical manufacturer.
Handling: check seals, container damage and recorded transport conditions against the agreed storage specification. Plan sampling through the quality inspection guide.
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What goes wrong
An insulin order can fail because the supplied identity or salt differs from the specification, the assay basis is unclear, or batch results do not cover the agreed impurities. A certificate for another site or batch leaves the buyer unable to connect the material received with the evidence reviewed.
Missing temperature records, damaged seals and incomplete manufacturing documents need investigation before the material is used. Agree how the receiving manufacturer will assess deviations and failed results. Resolve the MHRA route before shipment, rather than treating the tariff's duty rate as evidence of pharmaceutical suitability.
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 insulin active ingredient from China?
The supplied tariff snapshot records 0% duty for insulin and its salts under 2937 12 00 00, with no anti-dumping or countervailing measure and no suspension.
Do I need MHRA registration to import insulin active ingredient?
UK active-substance importers must register with the MHRA. Confirm the route for your insulin consignment, including any biological-product authorisation considerations, before ordering.
What should an insulin batch certificate show?
Ask for the exact identity and salt form, manufacturing site, batch, assay or potency, related substances, agreed test methods, storage conditions and retest date.
Can I use this guide for finished insulin injections?
This guide covers active ingredient. Finished medicines made up in measured doses have a different tariff heading. Confirm their classification and medicines import route separately.