Sourcing Reishi mushroom spawn from China

Reishi spawn duty and import controls

Read from the UK Trade Tariff on 29 September 2026, heading 0602 covers other live plants, roots, cuttings and slips, and mushroom spawn. The mushroom-spawn line is 0602 90 10 00. The product forms in the table share this line; they are not separate tariff subdivisions. See the live plants guide for the wider heading.

The supplied tariff record gives mushroom spawn from China 0% duty, with no recorded anti-dumping or countervailing duty and no suspension. It attaches Veterinary control and Import control of organic products. The importer should confirm the veterinary requirement with their customs broker using the complete substrate recipe. The tariff entry alone does not establish which documents apply to a particular Reishi shipment.

For organic imports, your company must be based and certified in the UK. Confirm the certificate of inspection arrangements for spawn from China with your approved organic control body and customs broker before ordering. Give the broker the species, intended propagation use, carrier and additives to confirm the commodity code.

Specify the Reishi strain and carrier

Specify the scientific species name and strain identifier, rather than accepting Reishi as the complete description. State whether you need grain spawn, sawdust spawn, inoculated dowels or material for culture multiplication. Obtain the complete carrier recipe, including supplements and any animal-derived ingredients.

Agree the pack weight, closure and filter arrangement, batch identification, inoculation date, storage conditions and transport temperature with the supplier. Request a retained sample and growth records for the offered strain. Test a sample on your intended cultivation substrate before approving the order.

Worked duty example

Illustrative example, not a quote: Illustrative order of 2,000 bags of Reishi mushroom spawn under 0602 90 10 00, invoiced at £6,000 free on board, with £900 of freight and insurance to the UK. The customs value is £6,900. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £6,900, so it is £1,380. 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 strain identifier, batch details and carrier against the order and supplier records.

Condition: check for unexpected coloured growth, wet or slimy patches, damaged closures and leaking bags; isolate suspect packs.

Viability: conduct a clean transfer trial and compare growth with the approved sample under the same conditions.

Transport: inspect filters, crushed packs and condensation, and review any temperature records against the agreed conditions. Use the inspection guide to brief the inspector.

What goes wrong

A bag can look colonised yet perform poorly after transport. Heat exposure, ageing cultures, damaged filters and contaminated carrier can undermine the batch. A supplier may also substitute a strain that grows differently on your substrate. Photographs of white mycelium do not replace an identity check and growth trial.

Paperwork problems begin when the invoice says only mushroom spawn while the carrier recipe or organic claim remains unclear. Send the full specification to your customs broker before dispatch and resolve the tariff's attached controls before committing the shipment.

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.