Sourcing DPM from China

Duty on dipropylene glycol monomethyl ether

Read from the UK Trade Tariff on 1 October 2026, heading 2909 covers ethers and ether-alcohols among other compounds. Dipropylene glycol monomethyl ether falls within the other ether-alcohols line, 2909 49 80 90, subject to confirmation of the supplied composition. The remaining table rows identify different chemicals for comparison, not alternative codes for this product.

The supplied tariff record shows 4% duty for this line and no anti-dumping or countervailing measure. Its suspensions name other substances, not dipropylene glycol monomethyl ether. The tariff attaches an export control for waste; the importer should confirm its relevance with their customs broker, particularly if returning rejected material.

Give your broker the chemical identity, composition and intended use to confirm the commodity code. See the wider ethers guide for neighbouring products. Confirm the applicable UK REACH requirements with the Health and Safety Executive before importing. Everyone in the supply chain must ensure correct labelling and packaging before placing chemicals on the Great Britain market.

Specify the solvent, not just the trade name

Write dipropylene glycol monomethyl ether in the purchase specification and require matching chemical identity on the safety data sheet and batch certificate of analysis. Agree purity by gas chromatography, water, colour, acidity and acceptable related glycol ethers. Ask the supplier to identify the grade and disclose whether the material is recovered or blended.

Approve a sample in your actual coating or cleaning formulation before accepting the production batch. Agree analytical methods and acceptance limits with the supplier and laboratory. Request an English safety data sheet and confirm your UK REACH position before shipment; a purchase description alone does not establish compliance.

Worked duty example

Illustrative example, not a quote: A trial shipment of drums of dipropylene glycol monomethyl ether; values illustrative under 2909 49 80 90, invoiced at £3,000 free on board, with £980 of freight and insurance to the UK. The customs value is £3,980. Duty at 4% is £159.20. Import VAT at 20% is charged on the customs value plus duty, £4,139.20, so it is £827.84. Import taxes total £987.04; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £159.20 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Identity: match the order, safety data sheet, batch certificate and drum labels to dipropylene glycol monomethyl ether.

Purity: compare independent gas chromatography results with the batch certificate, including related glycol ethers rather than total assay alone.

Water and colour: test representative arrival samples against agreed water, colour and acidity limits.

Drums: check seals, leaks, batch traceability and packaging condition; review labels and packaging before supplying the chemical.

What goes wrong

A similar solvent name can conceal a different glycol ether or a blend. Water, colour or contamination from poorly cleaned equipment can make a batch unsuitable for your formulation even when the supplier's assay appears acceptable. A certificate without a matching batch identity cannot resolve that uncertainty.

Hold questionable material apart from accepted stock, retain samples and compare arrival results with the agreed specification. Use the inspection guide to brief the inspection. Do not apply a suspension intended for another chemical to this order.

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.