Sourcing Ammonium Bicarbonate from China

4% duty on the other-carbonates line

Read from the UK Trade Tariff on 1 October 2026, heading 2836 covers carbonates, peroxocarbonates and commercial ammonium carbonate containing ammonium carbamate. For ammonium bicarbonate, the relevant residual line is 2836 99 17 80, described as other carbonates. The supply grades in the table share this line; they are not separate tariff subdivisions.

The supplied facts show 4% duty for goods from China on this line, with no anti-dumping or countervailing duty and no suspension. The tariff attaches an import waste control, plus export waste and dangerous-chemical controls. For waste shipments under notification controls, consent is needed before shipment. Ask your customs broker to confirm the requirement for the actual goods from China, particularly recovered or discarded material.

Confirm the chemical identity, composition and intended use through finding your commodity code. Do not use the sodium bicarbonate code for ammonium bicarbonate. For related products within the heading, see sourcing sodium bicarbonate.

Specify the grade and baking performance

Write ammonium bicarbonate explicitly in the purchase specification. Distinguish it from ammonium carbonate and sodium bicarbonate. State food, technical or laboratory use, assay, moisture, insoluble matter, particle size and the impurity tests relevant to your process. Agree the test methods and request a certificate of analysis linked to each production batch.

For food use in Great Britain, check the food additive register for the intended food category and conditions of use. The additive must also comply with its specification requirements. Ask for evidence against the applicable food specification rather than accepting a bag marked food grade. Agree lined packaging and storage instructions, and trial the sample in your actual recipe before approving supply.

Worked duty example

Illustrative example, not a quote: Illustrative order: 20 tonnes of food-grade ammonium bicarbonate for an ingredient wholesaler under 2836 99 17 80, invoiced at £15,000 free on board, with £2,000 of freight and insurance to the UK. The customs value is £17,000. Duty at 4% is £680. Import VAT at 20% is charged on the customs value plus duty, £17,680, so it is £3,536. Import taxes total £4,216; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £680 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Identity: match the product name, grade and batch reference across the order, bags and certificate of analysis.

Analysis: independently check representative batch samples for assay, moisture, insoluble matter and agreed impurities.

Packing: inspect liners, closures and pallet protection; record wet bags, tears, leakage and hard lumps.

Performance: compare dissolution and baking results with the approved sample, including lift and residual ammonia smell.

What goes wrong

Technical grade supplied against a food-grade order, certificates covering a different batch and caked powder can undermine the purchase. Ammonium bicarbonate also needs a process trial: acceptable laboratory results do not establish satisfactory baking performance in your recipe.

Quarantine suspect bags and retain samples linked to their batch references. Compare the delivered material with the approved sample and agreed test results before releasing it for use. Set out sampling and acceptance checks in the inspection brief.

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.