Sector guides

Sourcing Oyster Sauce from China

Oyster sauce from China normally pays 6% UK duty, with the relevant sauce lines all at 6%. Oyster ingredients can trigger animal-origin controls, so agree the import route from the full recipe and processing details before ordering. Ask Trading Standards to confirm mollusc allergen labelling requirements. Cambridge China Bridge sources oyster sauce.

Written by Bono Xu, Founder, Cambridge China Bridge · 4 min read · Updated 2026-10-17

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Oyster sauce duty and border controls

Read from the UK Trade Tariff on 17 October 2026, heading 2103 covers sauces, preparations for sauces, mixed condiments, seasonings and mustard. Ordinary oyster sauce without tomato falls within the other-sauces family, normally 2103 90 90 89 at 6%. The table also identifies tomato-containing recipes and unusually concentrated MSG mixtures; these are formulation alternatives, not interchangeable declarations.

The relevant lines carry 6% duty from China, with no listed anti-dumping or countervailing duty. The narrow suspension under 2103 90 90 89 concerns a specified fermented cayenne pepper preparation, not ordinary oyster sauce. The tariff attaches veterinary, organic-product and GMO controls. Oyster ingredients can require animal-origin checks; ask your customs broker whether rice-containing sauces need a common health entry document under the Chinese GM rice measure. For organic orders, ask your customs broker to confirm certificate-of-inspection requirements.

Confirm the commodity code using the complete recipe, including tomato and MSG content. Agree veterinary documents and any exemption with your customs broker before ordering; health certification may be needed for composite products containing fish ingredients. Our soy sauce and condiments guide covers the wider heading.

UK duty on these lines for goods of Chinese origin (one code per row), read from the UK Trade Tariff on 17 October 2026.
GoodsCommodity codeDutyAnti-dumping or countervailing duty on China
Oyster sauce without tomato, other than the listed MSG mixtures2103 90 90 896%None
Oyster sauce containing tomato, other than the listed MSG mixtures2103 90 90 196%None
Oyster-based seasoning without tomato, at least 50% MSG by dry weight2103 90 90 816%None
Oyster-based seasoning with tomato, at least 50% MSG by dry weight2103 90 90 116%None

Specify the oyster ingredient and finished sauce

Ask for the oyster extract content and composition, ingredient origins, full recipe and additive list. Identify soya, wheat, rice-derived ingredients and any other animal ingredients. Agree the heat treatment, unopened storage conditions, instructions after opening and the evidence supporting shelf life. Send these details to your customs broker to establish the import route.

Approve a retained sample for oyster flavour, sweetness, saltiness, colour, viscosity and sediment. Specify bottle or catering-pack material, closure, net contents, carton protection and batch coding. Check the English label against the recipe, and ask Trading Standards to confirm how molluscs, any soya or wheat allergens and MSG should be declared.

Worked duty example

Illustrative example, not a quote: Illustrative order: 5 tonnes of bottled oyster sauce under 2103 90 90 89, invoiced at £24,000 free on board, with £3,000 of freight and insurance to the UK. The customs value is £27,000. Duty at 6% is £1,620. Import VAT at 20% is charged on the customs value plus duty, £28,620, so it is £5,724. Import taxes total £7,344; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £1,620 of duty. 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

Recipe: compare the production ingredient list and oyster extract specification with the approved recipe; investigate substitutions.

Sauce: compare colour, aroma, viscosity and sediment with the retained sample, and review agreed batch laboratory results.

Labels: check mollusc, soya and wheat declarations against the actual recipe, plus storage instructions and readable batch codes.

Packing: check net contents, closures, leaks, broken glass and carton protection before shipment and on arrival. Use the quality inspection guide to agree the checks.

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What goes wrong

A cheaper oyster extract or a changed thickener can alter flavour and pouring consistency. Wheat carried in a soy-sauce ingredient can be missed on the label. Leaking closures, cracked bottles and unreadable batch codes make stock difficult to handle and trace.

Do not treat ambient storage as proof of exemption from veterinary controls. Settle the recipe and import documents before production, approve the label against that recipe, and retain samples from the shipment. Put unexplained recipe changes and leaking packs on hold while the supplier investigates.

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 oyster sauce from China?

Ordinary oyster sauce normally pays 6% under 2103 90 90 89. The relevant tomato-containing and listed MSG-mixture lines also carry 6%, with no listed anti-dumping or countervailing duty.

Does oyster sauce need a health certificate?

It may. Oyster ingredients can bring animal-origin controls into scope. Give your broker the full recipe and processing details to confirm the route, certification and any exemption before ordering.

Which allergens should an oyster sauce label show?

Ask Trading Standards to confirm how molluscs should be declared and emphasised on the label. Check the complete recipe for other allergens, particularly soya and wheat in soy-sauce ingredients; do not copy a label from a different formulation.

What should I check when oyster sauce arrives?

Check leaks, damaged bottles, closures, net contents and batch codes. Compare the sauce with the approved sample and reconcile the ingredient list and agreed batch test results.

Sources

  1. UK Trade Tariff — commodity codes and duty
  2. Import composite products to Great Britain
  3. Importing organic food, feed and seed to the UK
  4. Food Information Regulation: allergens
  5. HMRC — Food products (VAT Notice 701/14)

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