Sourcing fibre-cement chimney flues from China

Duty and asbestos-free material

Heading 6811 covers articles of asbestos-cement, cellulose fibre-cement or similar materials. This guide covers asbestos-free chimney-flue pipes and fittings under the other-articles line, 6811 89 00 00. The table separates component types sharing that tariff line. For the wider product family, see cellulose fibre-cement pipes.

Read from the UK Trade Tariff on 1 October 2026, the relevant line carried 0% duty for goods from China. The supplied tariff record lists no anti-dumping or countervailing duty, suspension or attached import control. UK regulations prohibit placing products containing asbestos fibres on the market. Specify asbestos-free material and agree laboratory testing before shipment.

Confirm the material composition and finished component description with your customs broker before using 6811 89 00 00. Follow finding your commodity code. A tariff classification does not establish that the flue suits the intended appliance.

Specify the appliance, pipe and joint system

Give the supplier the intended appliance and fuel, flue-gas conditions, internal bore, wall thickness, length, joint profile and installation arrangement. Specify whether the component connects an appliance, lines a chimney or forms part of a complete system. Ask for evidence covering the actual pipe, fittings and intended use, rather than a fibre-cement board report.

In England, Approved Document J advises that appliances other than flueless appliances should connect to suitable flues discharging outside. Have the proposed components reviewed against the intended installation before ordering. Asbestos-free composition alone does not establish suitability for heat, condensate or joint sealing.

Legitimately CE-marked construction products can continue to be supplied to the Great Britain market. Ask the supplier to identify the applicable product standard or assessment route and provide the supporting performance declaration and reports where applicable. Agree the evidence to review through testing and certification.

Worked duty example

Illustrative example, not a quote: Illustrative batch of chimney-flue pipes and matching fittings under 6811 89 00 00, invoiced at £9,000 free on board, with £2,500 of freight and insurance to the UK. The customs value is £11,500. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £11,500, so it is £2,300. 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

Material: check the agreed asbestos-free specification, material declaration and laboratory report against the supplied batch.

Dimensions: measure bore, wall thickness, length and socket profile against the approved drawing; trial-fit matching pipes and fittings.

Condition: inspect pipe walls, socket rims and ends for cracks, chips and distortion; record damage before moving the goods into stock.

Documents and packing: match product and batch identities to the reports and instructions; check that supports prevent pipes striking each other. Use the quality inspection guide.

What goes wrong

A supplier can offer an ordinary fibre-cement pipe with no evidence for chimney use. Reports may cover a different formulation or component, while apparently matching sockets leave uneven gaps. Resolve material, appliance compatibility and joint details before approving production.

Unsupported lengths and unprotected socket rims can crack during transport. Inspect beneath the wrapping and segregate damaged components. Do not accept a generic asbestos-free statement as a substitute for the agreed material evidence, or use a board fire report to approve a flue.

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.