Sourcing multiwall paper sacks from China

Duty and classification for paper sacks

Heading 4819 covers paper and paperboard packing containers and certain office articles. Multiwall paper sacks sit within the sack and bag lines. The tariff distinguishes sacks with a base width of 40 cm or more from other sacks and bags. The table separates valve and open-mouth buying options within those same codes.

Read from the UK Trade Tariff on 6 October 2026, both relevant sack codes carry 0% duty for goods from China. The supplied tariff record lists no anti-dumping or countervailing measures, suspensions or attached import controls for either code. Import VAT is 20%.

Confirm the commodity code using the sack construction, material and base dimensions, particularly where a liner changes the material composition. For the wider heading, see paper carrier bags.

Specify the sack around the filling line

State the contents, intended filled weight, filling equipment and closure method. Specify paper grades, grammage for each ply, ply count, finished dimensions, gussets, bottom construction and print artwork. For valve sacks, agree valve position, sleeve material and compatibility with the filling spout. For open-mouth sacks, agree how the mouth will be sewn or sealed.

Specify whether the liner is loose or bonded, its material and thickness, and the moisture barrier needed for the contents. Trial approved samples on your filling line with the actual product. Check filling, dust escape, closure and handling before approving bulk manufacture.

Confirm with the relevant authority whether the business first placing virgin-fibre paper on the Great Britain market must carry out timber-source due diligence, and how bamboo-based and recovered products are treated; use the site's published guides as a starting point. Ask for pulp source, species and country of harvest. Also confirm with the relevant authority whether packaging producer responsibility obligations apply to your business supplying packaging.

Worked duty example

Illustrative example, not a quote: Illustrative order of 5,000 multiwall paper sacks; FOB value and freight are illustrative. under 4819 40 00 00, invoiced at £4,000 free on board, with £1,200 of freight and insurance to the UK. The customs value is £5,200. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £5,200, so it is £1,040. 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

Construction: compare paper plies, liner, dimensions, valve sleeve and glued or sewn seams with the approved sample; inspect inside the sack as well as outside.

Filling and handling: fill samples with the intended contents, check valve fit and closure, then assess leakage, seam opening and tearing during agreed handling trials.

Food use: if you package food yourself, the packaging must be suitable for food use. Ask for suitability evidence covering the intended contents and any liner, adhesive or coating.

Arrival condition: check bundles for dampness, mould, odour, crushed valves and damaged edges; compare print and bundle identification with the order.

What goes wrong

A sack can match the drawing yet fail on the filling line. A valve sleeve that catches on the spout slows filling; poor venting releases dust or leaves trapped air. Weak bottom bonds, damaged paper edges and an unsuitable liner cause leaks or tears when filled sacks are moved.

Damp storage weakens paper and can introduce mould or odour. Agree protective wrapping and dry storage arrangements with the factory, and inspect deliveries before filling. Keep the approved filled sample and use the same checks for repeat orders.

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.