Sourcing sodium acid pyrophosphate from China
Sodium acid pyrophosphate from China carries 4% UK duty under the other polyphosphates line, with no suspension or trade remedy recorded. Food use must match the permitted food categories and quantities; confirm the applicable food-grade additive specifications with the Food Standards Agency. Cambridge China Bridge sources sodium acid pyrophosphate.
Sodium acid pyrophosphate duty
Heading 2835 covers phosphinates, phosphonates, phosphates and polyphosphates. For sodium acid pyrophosphate, the relevant line to confirm is 2835 39 00 00, other polyphosphates. The table shows purchasing variants within that same tariff line. For other substances, see phosphates and STPP.
Read from the UK Trade Tariff on 6 November 2026, the other polyphosphates line carries 4% duty for goods from China, with no anti-dumping or countervailing duty and no suspension recorded. The tariff attaches waste import and export controls. For waste imports under notification controls into England, the exporter must apply for consent to the competent authority in China. Ask your customs broker to confirm the applicable waste requirements before shipping.
Confirm the commodity code using the chemical identity, composition and intended presentation. Tell the broker whether the shipment is the substance itself or a formulated baking preparation. Do not assume that a blend uses the same code.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Food-grade sodium acid pyrophosphate | 2835 39 00 00 | 4% | None |
Specify reaction performance and food grade
Specify sodium acid pyrophosphate by its full chemical name, intended use and grade. For baking, agree a reaction test with the buyer's bicarbonate and recipe, including mixing conditions and the point at which gas release is assessed. For potato processing, assess colour and flavour in the actual process. Approve a sample against that method before placing the production order.
Most food additives are permitted only in certain foods and quantities. Check the intended application against the authorised conditions of use. Confirm the applicable food-grade additive purity specifications with the Food Standards Agency. Request batch analysis covering assay, moisture and relevant impurities, with methods and acceptance limits agreed before production. Confirm with HSE whether UK REACH registration applies to your intended use and annual imports.
Worked duty example
Illustrative example, not a quote: Illustrative order: 25 tonnes of sodium acid pyrophosphate; illustrative FOB value and freight under 2835 39 00 00, 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 identifiers on bags, the invoice and the certificate of analysis.
Analysis: compare assay, moisture and impurity results with the agreed specification; send representative batch samples for independent testing.
Performance: repeat the agreed reaction or processing trial against the approved sample, using the same recipe and test conditions.
Packing: check liners, seals, bag weights and pallet condition; record caking, damp patches and torn bags before accepting stock.
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What goes wrong
A matching product name does not guarantee matching performance. A different reaction profile can release gas at the wrong stage of baking, while a processing grade may behave differently in the buyer's potato treatment. Technical-grade substitution, incomplete impurity results and certificates that do not identify the delivered batch leave the buyer without reliable acceptance evidence.
Moisture can cause caking and uneven dosing. Agree dry, lined packing and retain an approved sample for comparison. Hold suspect bags separately while checking the batch analysis and application performance. Use quality inspection to check the shipment against the written specification.
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 sodium acid pyrophosphate from China?
The supplied tariff extract records 4% under 2835 39 00 00, with no anti-dumping or countervailing duty and no suspension, read on 6 November 2026.
Can I use Chinese sodium acid pyrophosphate in food?
Check the intended food and quantity against the authorised conditions of use, and verify food-grade purity specifications. A supplier's food-grade description alone is insufficient.
How do I choose a sodium acid pyrophosphate baking grade?
Agree a reaction test using your bicarbonate, recipe and mixing conditions. Compare the production batch with the approved sample rather than accepting the product name alone.
What should I check when sodium acid pyrophosphate arrives?
Check batch identity, analysis results, reaction performance, bag seals and moisture damage. Investigate caking or a certificate that cannot be matched to the delivered batch.