Sourcing basalt fibre rebar from China

Duty and classification for basalt fibre rebar

Heading 6815 covers articles of stone or other mineral substances not elsewhere specified or included. For basalt fibre rebar, 6815 99 00 00 is a candidate residual mineral-articles code, rather than a confirmed classification for every resin-bound bar. The table shows different rebar forms against that same candidate line; these are not separate tariff subdivisions.

Read from the UK Trade Tariff on 1 October 2026, the supplied lines under heading 6815 all carry 0% duty for goods from China. No anti-dumping or countervailing duty, suspension or attached import control is recorded. This tariff position does not establish suitability for structural use.

Give your customs broker the fibre and resin composition, manufacturing description, surface treatment and intended use, then confirm the commodity code. For the wider basalt fibre family, see basalt fibre fabric.

Specify the bar and its structural use

Specify basalt fibre identity, resin system, fibre content, bar diameter and its measurement method, length, tolerances, straightness and rib or sand coating. Agree tensile strength, modulus, elongation, bond performance and durability evidence with the project engineer. Ask for cutting, storage and handling instructions, and agree any shaped bars on drawings before manufacture.

For supply in Great Britain, check whether a designated construction-product standard applies. Confirm with the relevant construction-product authority whether a declaration of performance and UKCA or CE marking are required for the actual bar and intended use. Products not covered or not fully covered by a designated standard may be covered by a technical assessment document. Ask which route covers the actual bar and intended use; arrange testing and certification checks before ordering.

Worked duty example

Illustrative example, not a quote: Illustrative order: a trial consignment of straight basalt fibre rebar in agreed lengths, assuming this classification is confirmed under 6815 99 00 00, invoiced at £18,000 free on board, with £3,500 of freight and insurance to the UK. The customs value is £21,500. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £21,500, so it is £4,300. 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

Identity: match bundle labels and batch references to the order, material declaration and test reports; confirm that reports describe the supplied fibre, resin and surface treatment.

Dimensions: measure diameter using the agreed method, check length and straightness, and compare rib geometry or coating coverage with the approved sample.

Condition: inspect for exposed fibres, splitting, crushed ends, loose sand coating and abrasion at straps or supports; photograph damage before unpacking.

Performance: match sampled bars to the batch reports and arrange the agreed independent tests. Visual checks cannot establish tensile or bond performance. See quality inspection explained.

What goes wrong

A report for a different resin, diameter or surface treatment may not support the delivered bar. Measuring over ribs can also conceal a disagreement about nominal diameter. Missing batch references make it difficult to connect delivered bundles with tested samples.

Watch for coating loss, damaged fibres and resin-rich areas. Avoid substituting basalt fibre rebar for steel solely on a supplier's tensile-strength comparison. Ask the project engineer to assess stiffness, bond, anchorage, sustained loading and fire exposure for the intended application before accepting a substitution.

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.