Sourcing TMP triglycidyl ether from China

UK duty and classification

Read from the UK Trade Tariff on 5 October 2026, heading 2910 covers epoxides, epoxyalcohols, epoxyphenols and epoxyethers with a three-membered ring, and their specified derivatives. Every supplied line carries 0% duty for goods from China. The supplied facts show no anti-dumping or countervailing duty and no suspensions.

Trimethylolpropane triglycidyl ether is not named separately in the supplied tariff lines. Treat 2910 90 00 90 as a candidate, subject to composition checks. A resin-containing preparation needs separate consideration against the full description of 2910 90 00 05. The table includes phenyl and allyl glycidyl ethers as classification comparisons; they are different chemicals, not grades of this product.

The UK Trade Tariff attaches an export control for waste to these lines. Ask your customs broker to confirm its relevance to the transaction, especially for recovered material or rejected stock being returned. Confirm the commodity code using the composition and chemical identity. For wider heading context, see neopentyl glycol diglycidyl ether.

Specifying trimethylolpropane triglycidyl ether

State whether you want the chemical itself or a formulated blend. Agree the chemical identity, composition, epoxy equivalent weight, viscosity, colour, water and hydrolysable chlorine. Specify the test method and viscosity measurement temperature alongside each acceptance limit. Obtain a batch certificate of analysis and trial the sample in your actual resin system before approving the production grade.

For Great Britain, confirm with HSE whether your annual substance imports require UK REACH registration coverage and whether an only representative arrangement is appropriate. Check your UK REACH position before ordering. Hazard classification applies regardless of quantity. Classification and labelling must be carried out by someone with scientific competence; chemicals must be correctly labelled and packaged before being placed on the market. Hazardous chemicals supplied for workplace use require a safety data sheet.

Worked duty example

Illustrative example, not a quote: Illustrative drum-packed order of trimethylolpropane triglycidyl ether for a coatings business, subject to classification confirmation under 2910 90 00 90, invoiced at £24,000 free on board, with £3,500 of freight and insurance to the UK. The customs value is £27,500. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £27,500, so it is £5,500. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.

Inspection checklist

Identity: match the purchase specification, batch certificate, safety data sheet and drum labels to trimethylolpropane triglycidyl ether and the agreed composition.

Analysis: compare epoxy equivalent weight, viscosity, colour, water and hydrolysable chlorine with the approved sample using the agreed methods.

Application: trial a retained batch sample in the customer's resin system and compare its mixing and curing behaviour with the approved material.

Packaging: check drum seals, leakage, corrosion, batch identification and label consistency. Review the safety data sheet and transport information before dispatch; use the inspection guide to define the inspection scope.

What goes wrong

An order described only as an epoxy reactive diluent leaves room for a different glycidyl ether or an undeclared blend. A matching trade name does not establish matching epoxy equivalent weight or viscosity. Changes in colour, water or hydrolysable chlorine can also make a delivered batch differ from the material your customer qualified.

Separate the sample approval from batch acceptance. Keep an approved sample, obtain results for the actual shipment and agree how failed batches will be handled. Resolve mismatched chemical names, safety data sheets or drum labels before loading. Ask for factory verification when you need to establish who manufactures and tests the material.

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.