Sourcing seed treatment fungicides from China

Duty and conditional suspensions

Read from the UK Trade Tariff on 1 October 2026, heading 3808 covers prepared fungicides alongside other pesticides and disinfectants. This guide covers fungicide preparations bought for treating seed before sowing. The table distinguishes organic fungicides by chemical family; inclusion does not establish that a particular product is authorised for seed treatment.

The selected lines carry 6% duty for goods from China, with no anti-dumping or countervailing measures recorded. Conditional suspensions at 0.00 % appear on 3808 92 30 00 and 3808 92 90 00. Their footnotes restrict eligibility, including exclusions for mixtures; the latter lists particular pyrithione preparations. Ask your broker to match the complete formulation against the suspension wording before claiming relief.

The selected lines attach waste import controls, with waste export controls and, on some lines, dangerous-chemical export controls also recorded. For a shipment from China that is waste, confirm the applicable requirements with your customs broker; notified waste cannot move until the relevant authorities consent. Confirm the commodity code from composition and presentation, and consult the wider pesticides guide.

Specify the seed treatment formulation

Before ordering, check the exact product's HSE authorisation for use in Great Britain and confirm the requirements for sale with HSE. Approval of an active substance alone does not authorise the finished product. Compare the proposed crop and seed-treatment use with the authorisation and label, rather than accepting a supplier's general claim that the ingredient is approved.

Specify active substances and concentrations, formulation type, target seed, dilution method, viscosity, particle size, colour, storage stability and pack material. Seed treatment authorisations express dose as product volume or weight per unit of seed, so preserve that basis in the specification. Agree checks for coating uniformity, adhesion, dust release and germination using representative seed and the buyer's treatment equipment.

Worked duty example

Illustrative example, not a quote: Illustrative order: 20 drums of triazole-based seed treatment fungicide under 3808 92 50 00, invoiced at £18,000 free on board, with £4,000 of freight and insurance to the UK. The customs value is £22,000. Duty at 6% is £1,320. Import VAT at 20% is charged on the customs value plus duty, £23,320, so it is £4,664. Import taxes total £5,984; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £1,320 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Identity: match the delivered formulation, active substances and batch markings to the purchase specification and authorisation documents.

Assay: compare independent batch results with the agreed active-content specification and the supplier's certificate; retain a sealed sample.

Application: check settling, redispersion and flow, then assess coating coverage, adhesion, dust release and germination against agreed acceptance criteria.

Packs and labels: inspect seals, leaks and net contents. Each container must have its product label, and that label must match the statutory conditions of use.

What goes wrong

A supplier offers an approved active substance but a finished formulation without the required product authorisation. The goods cannot be used in Great Britain on that basis; confirm the requirements for sale with HSE. Resolve product identity and authorisation before ordering; a batch assay cannot establish permission to sell.

Physical failures include hard sediment, blocked dosing equipment, uneven seed coverage and coating that rubs off during handling. A colour match alone cannot demonstrate correct active loading. Agree representative application checks before shipment and repeat the agreed arrival checks before accepting the batch. The inspection guide explains how to brief an inspector.

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.