Sourcing Uncoated Paper Coreboard from China

Coreboard duty and fibre-source checks

Heading 4805 covers other uncoated paper and paperboard in rolls or sheets, within the heading's processing limits. This guide concerns raw coreboard for winding paper tubes and cores. The selected lines distinguish grammage and, for heavier board, whether it is made from recovered paper. Lighter lines may suit thin plies; select them only where the actual material matches their descriptions.

Read from the UK Trade Tariff on 1 October 2026, the selected lines carried 0% duty for goods from China. The supplied tariff record lists no anti-dumping or countervailing measures, suspensions or attached import controls. Paper from virgin pulp placed on the Great Britain market requires timber due diligence; qualifying recovered-paper products are excluded from that scope.

Confirm the commodity code using the mill's fibre composition, grammage and processing description. Do not choose it from the trade name alone. See the fluting and testliner guide for the wider heading and the paper tubes and cores guide when buying finished articles.

Specify coreboard for your winding process

State the intended tube or core application, fibre mix, grammage and tolerance, thickness, ply bond strength, moisture and glue absorption. Agree the test methods and sample conditioning with the mill. Match slit width, reel diameter, reel core size and splice arrangements to your winding equipment.

Trial the board with your adhesive and winding settings. Check bonding, drying, finished wall thickness and resistance to crushing against your approved sample. Ask for fibre-source records as well as batch test results; where virgin pulp is used, confirm applicable timber due-diligence obligations and their timing with the relevant timber-regulations authority before placing the paper on the Great Britain market.

Worked duty example

Illustrative example, not a quote: 40 tonnes of recovered-paper coreboard in reels, illustrative only under 4805 93 20 00, invoiced at £27,000 free on board, with £3,500 of freight and insurance to the UK. The customs value is £30,500. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £30,500, so it is £6,100. 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

Board properties: check conditioned samples from different reels for grammage, thickness, moisture and ply separation against the agreed specification.

Winding trial: check glue uptake, bonding and finished-core crushing performance using your intended adhesive and process.

Reels: check slit width, diameter, reel core fit, edge damage, winding tightness and marked splices.

Arrival condition: check wrapping, wet patches, mould and crushed reel ends before moving the board into production. Record reel identifiers and defects; see quality inspection.

What goes wrong

A board can meet the ordered grammage yet produce weak cores if thickness or ply bonding varies. Uneven glue absorption can leave dry joints or slow drying. Moisture variation affects winding and finished dimensions, while damaged slit edges and unmarked splices interrupt production.

Approve a winding trial before accepting the grade, then compare production batches with that sample. Keep fibre composition and performance requirements separate: a recycled-content description alone does not establish core strength.

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.