Sourcing Polyterpene Resins from China

Zero duty on polyterpene resins

Read from the UK Trade Tariff on 1 October 2026, polyterpenes in primary forms fall within heading 3911. The ordinary polyterpene resin line, 3911 10 00 90, carries 0% duty for goods from China. The supplied tariff record lists no anti-dumping duty, countervailing duty or suspension on this line. The table describes purchasing forms sharing this commodity line.

The tariff attaches import and export waste controls. For waste resin entering England under notification controls, shipment can begin only after consent from the Environment Agency and the other competent authorities involved. Before buying reclaimed or discarded resin from China, ask your customs broker to confirm whether waste controls apply and which procedure the shipment needs.

Confirm the commodity code using the composition and supplied form. Describe chemical modification and any solvent or other ingredients rather than relying on a supplier's trade name. Rosin and rosin esters belong to heading 3806. See the wider hydrocarbon resins guide for related products.

Specify softening point and adhesive compatibility

Name the polyterpene grade, feedstock identity, physical form and intended formulation. Agree softening point by the ring and ball method, Gardner colour, acid value, volatile content and the test methods used. Trial the sample in your own adhesive formulation, checking melt clarity, tack, setting behaviour and colour after heating. Keep an approved sample for comparison with production lots.

Ask for the monomer and reactant identities and their proportions. Resolve that position before ordering.

Substances and mixtures placed on the Great Britain market must be classified and labelled under GB CLP. Obtain the grade's safety data sheet and check that its identity matches the order. A safety data sheet is required when a hazardous chemical is supplied for use at work.

Worked duty example

Illustrative example, not a quote: Illustrative order: one tonne of polyterpene resin pastilles under 3911 10 00 90, invoiced at £3,000 free on board, with £1,500 of freight and insurance to the UK. The customs value is £4,500. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £4,500, so it is £900. 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: check the resin grade, batch number and certificate of analysis against the purchase specification and retained sample.

Performance: check softening point, colour and volatile content; repeat the compatibility trial with a sample from the shipment.

Condition: check for caking, excessive fines, foreign particles and unexpected odour before releasing the resin to production.

Packing: check seals, moisture damage and batch markings, and compare the delivered form with the order. Agree sampling through the quality inspection guide.

What goes wrong

A resin can meet the supplier's headline softening point yet produce cloudy adhesive, different tack or darker colour after heating. Changed feedstock or an unapproved grade substitution can alter compatibility. Use agreed test methods and compare shipment samples in the actual formulation rather than accepting a generic certificate.

Warm transport can turn free-flowing resin into difficult-to-dose lumps. Residual volatiles can introduce odour, while missing monomer information leaves the registration position unresolved. Agree packing and storage conditions, retain batch samples and investigate deviations before mixing the delivery into existing stock.

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.