Sourcing methylene urea fertiliser from China

Duty depends on the complete formulation

Read from the UK Trade Tariff on 3 October 2026, heading 3102 covers mineral or chemical nitrogenous fertilisers. The supplied tariff data does not name methylene urea. The table shows product forms against the same candidate residual line, rather than separate tariff subdivisions. Confirm that each formulation belongs in that line before using its duty rate.

Code 3102 90 00 90 carries 6% duty for goods from China, with no listed anti-dumping or countervailing duty, suspension or attached import control. The residual solid-fertiliser line containing more than 80% ammonium nitrate carries 6.50% and an ammonium nitrate import control. If ordering such a blend, confirm the certificate and shipment requirements with your customs broker before dispatch.

Give your broker the composition, nitrogen analysis, physical form and pack size to confirm the commodity code. For other products within the heading, see urea and nitrogen fertilisers. Do not assume that an ordinary urea suspension applies to methylene urea fertiliser.

Specify nitrogen fractions and release evidence

Ask the factory to identify the material sold as methylene urea and provide its complete composition. Specify total nitrogen, free urea nitrogen, cold-water-soluble nitrogen and nitrogen soluble only in hot water, with the analytical methods stated. Agree moisture, particle size, dust and packing criteria. For suspensions, also agree settling, redispersion and compatibility checks.

Ask for release-test results with the temperature, moisture conditions and method recorded. Match the test conditions to the intended growing medium and use. A total-nitrogen result should not replace evidence supporting the claimed release behaviour.

For fertilisers sold in Great Britain, confirm the applicable type and nutrient declaration requirements with the relevant fertiliser authority. Agree the label against the chosen legal route before printing. Separately, assess whether the imported substances require UK REACH registration; HSE advises considering registration when importing a substance for the first time.

Worked duty example

Illustrative example, not a quote: Illustrative order: 25 tonnes of methylene urea fertiliser granules; illustrative FOB and freight values, subject to confirmation of classification under 3102 90 00 90, invoiced at £15,000 free on board, with £2,500 of freight and insurance to the UK. The customs value is £17,500. Duty at 6% is £1,050. Import VAT at 20% is charged on the customs value plus duty, £18,550, so it is £3,710. Import taxes total £4,760; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £1,050 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Identity: compare the batch analysis and composition with the approved specification, including any ordinary urea or other nitrogen fertiliser added.

Nitrogen fractions: arrange independent sampling and laboratory checks using the agreed methods; compare the soluble fractions as well as total nitrogen.

Physical condition: check granules for dust, breakage and caking, or suspensions for settling and redispersion. Repeat these checks on arrival.

Packing and labels: inspect liners, seams, moisture damage, batch identification and the agreed nutrient declaration. Use the quality inspection guide to prepare the inspection brief.

What goes wrong

A shipment can meet total nitrogen while differing from the approved sample in free urea or soluble nitrogen fractions. That leaves the buyer without evidence for the promised release behaviour. Other problems include dusty granules, moisture-related caking, leaking bags and suspensions that are difficult to redisperse.

Avoid accepting a generic nitrogen certificate as the complete specification. Retain representative samples, agree the test methods before production and compare the shipped batch with the approved material. Settle composition, classification and label wording before 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.