Sourcing dried Sargassum seaweed from China

0% duty, with species and use checks

Read from the UK Trade Tariff on 30 September 2026, heading 1212 includes dried seaweeds and other algae. The relevant lines for Chinese dried Sargassum carry 0% duty, with no listed anti-dumping or countervailing duty and no listed suspension. The table distinguishes whole and cut forms within the same commodity lines.

The tariff attaches an organic-products import control to both relevant lines. For organic food from China entering Great Britain, each consignment needs a Great Britain certificate of inspection. Before ordering organic stock, ask your approved organic control body and customs broker to confirm the exporter’s eligibility and the paperwork.

Fit-for-human-consumption seaweed falls under 1212 21 00 00; other dried seaweed falls under 1212 29 00 90. Confirm the species, processing and intended use when checking your commodity code. For related heading coverage, see the dried hijiki guide.

Specify the species before the seaweed grade

Write the botanical species, harvest location, whole or cut form, washing process, drying method and intended use into the purchase specification. Agree moisture, sand, salt, foreign matter and stem content against an approved sample. Keep food and non-food specifications separate.

For a food proposal, establish the species’ food status before ordering. Novel foods need authorisation before sale in Great Britain, and unsafe food must not be placed on the market. The Food Standards Agency has warned against eating hijiki. Do not treat a supplier’s description of Sargassum as proof of food suitability.

Worked duty example

Illustrative example, not a quote: Illustrative only: 500 kg of dried Sargassum for non-food processing under 1212 29 00 90, invoiced at £2,500 free on board, with £900 of freight and insurance to the UK. The customs value is £3,400. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £3,400, so it is £680. 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. This assumes the goods are standard-rated for VAT. Most food for human consumption is zero-rated, and animal feed can be too, in which case no import VAT is due, so check the rate for your product in HMRC's VAT Notice 701/14.

Inspection checklist

Identity: match the botanical identification, supplier records and batch sample; investigate mixed seaweed or an unexplained species substitution.

Condition: check moisture, mould, musty odour, sand, stones, attached shell fragments and excessive broken material against the agreed specification.

Testing: commission representative batch testing for inorganic arsenic, other heavy metals, iodine and microbiological condition appropriate to the proposed use; match the report to the shipment.

Packing: inspect liners, seals, damp patches and batch identification on arrival. Retain a sealed sample and compare it with the approved sample. See our quality inspection guide.

What goes wrong

A broad seaweed name can conceal a species substitution, while a report for a previous harvest can leave the delivered batch untested. Reject unexplained changes in species or harvest source and request testing that distinguishes inorganic arsenic from total arsenic.

Damp packing, excess sand, tough stems and inconsistent cutting can make a batch unsuitable for the buyer’s process. Record acceptance criteria before production and hold a disputed batch separately while identity, condition and test results are checked.

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.