Sourcing neopentyl glycol from China

Neopentyl glycol duty and classification

Read from the UK Trade Tariff on 5 November 2026, heading 2905 covers acyclic alcohols and their specified derivatives. Neopentyl glycol falls within other diols, provisionally under 2905 39 95 90. The table shows purchasing forms sharing that tariff line, rather than separate commodity classifications.

The supplied China-origin rate is 4%, with no anti-dumping or countervailing duty shown. The line has a suspension restricted to named butanediol and propanediol substances; it does not name neopentyl glycol. The tariff also attaches an export control for waste. Waste shipment controls apply only to waste; if buying recovered or off-specification material, confirm its status and the applicable requirements with your customs broker before shipment.

Confirm identity, composition and physical form using the commodity-code guide. Do not assume a formulated solution or blend uses the same code as the substance. For neighbouring products, see the wider glycols and polyols guide.

Specify neopentyl glycol for your resin process

State whether you need flakes, granules or another agreed form. Set acceptance limits for assay, water, colour, acidity and relevant impurities, with test methods and reporting units. Ask for a batch certificate of analysis and retain an approved sample. Trial the material in your own resin or coating formulation before approving bulk supply.

Check UK REACH registration coverage against your annual substance volume. Confirm the applicable registration threshold with HSE. Registration is per substance and legal entity. Chemical suppliers, including importers, are responsible for classification. Arrange a competent review of classification and the resulting supply documentation, labels and packaging before dispatch.

Worked duty example

Illustrative example, not a quote: Illustrative order: one tonne of bagged neopentyl glycol flakes under 2905 39 95 90, invoiced at £3,500 free on board, with £670 of freight and insurance to the UK. The customs value is £4,170. Duty at 4% is £166.80. Import VAT at 20% is charged on the customs value plus duty, £4,336.80, so it is £867.36. Import taxes total £1,034.16; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £166.80 of duty. The import duty and VAT guide explains each step.

Inspection checklist

Identity: match the purchase specification, batch certificate, safety data sheet and package markings to neopentyl glycol.

Analysis: compare batch assay, water, colour and acidity with the agreed limits; independently test a representative sample where these affect your process.

Packaging: check sealed liners, dry bags, pallet protection and signs of punctures, wetting or contamination.

Arrival condition: record caking, discolouration and foreign matter; retain samples linked to each batch before releasing stock.

What goes wrong

A matching product name can conceal a different water content, impurity profile or physical form. Damp or damaged packaging can leave caked material that is difficult to dose. A certificate copied from an earlier batch gives no useful assurance about the delivered lot. Agree batch-specific evidence and rejection criteria before ordering.

A supplier may apply a suspension belonging to another diol, understating landed cost. Check the substance against the suspension wording rather than accepting a duty-free quotation. Keep suspect batches separate until identity and analysis are resolved.

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.