Sourcing sulphurised vegetable oils from China

Duty depends on the oil and blend composition

Read from the UK Trade Tariff on 1 October 2026, heading 1518 covers sulphurised and other chemically modified fats and oils, plus inedible oil mixtures. The starting candidate for sulphurised vegetable oil is 1518 00 91 80 at 6% duty from China. No anti-dumping, countervailing duty or suspension is recorded for that line. The table includes neighbouring blend and preparation lines for comparison, rather than interchangeable codes for the same oil.

The modified-oil biodiesel blend lines shown carry 7.70% ordinary duty and a recorded residual anti-dumping rate of 54.64%. Declare the actual composition and check the exporter-specific measure. The used-cooking-oil suspension elsewhere in the heading is restricted to the stated biodiesel-production use; it is not a general relief for sulphurised oil. See the wider modified-oils guide.

The tariff attaches veterinary, CITES, seal-product and waste import controls to the standard modified-oil line. Confirm the veterinary and seal-product requirements with your customs broker against the declared feedstock. CITES specimens require an import permit. If the oil is waste subject to notification, shipment requires consent from the competent authorities involved. Establish waste or non-waste status before dispatch. Confirm the commodity code using the formulation, manufacturing process and intended use.

Specify sulphur activity and metal compatibility

Specify the vegetable feedstock, sulphurisation process, total sulphur and active sulphur, viscosity at an agreed test temperature, acid value, moisture, insoluble material and colour. State whether the product is a sulphurised oil or a preparation containing other ingredients. Ask for the complete composition and chemical identity rather than relying on a trade name.

For metalworking or lubricant trials, agree the application, dilution medium and metals in contact with the oil. Request copper-corrosion results and test the oil in your own formulation for staining, separation and deposits. Agree test methods and acceptance limits with the supplier, and retain an approved sample.

UK REACH registration is per substance and per legal entity. Review the chemical identity and registration position before ordering. Suppliers must ensure correct chemical labelling and packaging before placing the oil on the Great Britain market. Confirm safety-data-sheet requirements for hazardous mixtures with HSE under UK REACH. Match that document to the actual formulation.

Worked duty example

Illustrative example, not a quote: Illustrative order: 2 tonnes of sulphurised vegetable oil in drums under 1518 00 91 80, invoiced at £4,000 free on board, with £2,500 of freight and insurance to the UK. The customs value is £6,500. Duty at 6% is £390. Import VAT at 20% is charged on the customs value plus duty, £6,890, so it is £1,378. Import taxes total £1,768; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £390 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

Batch identity: match drum markings, the batch analysis and the retained sample to the ordered feedstock and formulation.

Sulphur and viscosity: independently check total and active sulphur, viscosity, acid value and moisture against the agreed specification.

Application: repeat the agreed metal-compatibility and blending checks; compare staining, deposits and separation with the approved sample.

Packing and documents: check closures, leaks, sediment and net contents; match the safety data sheet and labels to the batch. Use the inspection guide to prepare the inspection brief.

What goes wrong

A matching total sulphur result can conceal different active sulphur or viscosity. The delivered oil may stain copper-containing parts, separate in the buyer's blend or leave deposits. Feedstock substitution and undisclosed diluents can also change performance. Release the batch against agreed analysis and application tests, rather than colour alone.

A supplier's generic oil description can conceal a biodiesel blend or a finished lubricant preparation requiring a different classification. Ask for the full formulation before agreeing the code. Settle waste status and the tariff's conditional controls before loading, and hold batches with unexplained document or composition differences.

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.