Sourcing hard rubber and ebonite from China

0% duty

Read from the UK Trade Tariff on 27 September 2026, heading 4017 covers hard rubber (for example, ebonite) in all forms, including waste and scrap, and articles of hard rubber. Its single line, 4017 00 00 00, carried 0% on goods from China with no anti-dumping measure.

Soft vulcanised rubber goods are in headings 4008 to 4016 (see our rubber sheet and matting guide), and finished tobacco pipes with ebonite stems are 9614 (see our smoking pipes guide), so confirm the commodity code. For silicone materials, see our silicone oils, rubbers and resins guide. For soft rubber hoses, see our rubber and hydraulic hose sourcing guide. For workplace matting, see our guide to sourcing rubber anti-fatigue mats. For cable grommets, see our rubber cable grommet sourcing guide.

Neighbouring codes to rule out

Ebonite is easy to confuse with two neighbours that carry duty. Soft vulcanised rubber articles fall under heading 4016, and plastic parts that look like ebonite fall under heading 3926, which was 6% on goods from China; see our rubber sheet guide for soft rubber. Hard rubber is 0%, so ask the supplier to confirm the material is hard vulcanised rubber rather than a plastic, and keep that statement with the import records. For loading-bay components, see our rubber dock bumper sourcing guide. For door protection, see our rubber door finger guard sourcing guide.

Chemical rules

Entry 50 of Annex XVII to UK REACH (Regulation (EC) No 1907/2006) limits polycyclic aromatic hydrocarbons in rubber and plastic parts that come into direct, prolonged or repeated contact with skin or the mouth, such as mouthpieces and handles, so ask for PAH test results for those uses.

Consumer articles must also be safe under the General Product Safety Regulations 2005 in Great Britain and EU Regulation 2023/988 in Northern Ireland.

Specifying ebonite

Specify form and dimensions (rod diameter, sheet thickness, tube bore), colour, hardness measured by Shore D durometer to ISO 868, density, surface finish and polish, machining tolerances for finished parts, and packing that protects polished surfaces.

Worked duty example

Suppose, purely for illustration, you import 2 tonnes of ebonite rods and sheets under 4017 00 00 00. At £14,000 free on board and £1,200 to ship and insure, the customs value is £15,200. With 0% duty on ebonite, the only charge is import VAT: 20% of £15,200, or £3,040. VAT-registered businesses usually recover that in their next return. The method is set out in how UK import duty and VAT work.

Inspection checklist

Material: check hardness on samples against the agreed Shore D range, and look for porosity, inclusions and cracks on cut ends.

Dimensions: measure rod diameter, sheet thickness and straightness, and machined features on finished parts.

Surface: check colour consistency and polish, and for mouth-contact parts, the PAH test report.

What goes wrong

Ebonite orders fail on cure, porosity and surface. Under-cured material is too soft to machine cleanly, voids appear when rods are cut, black ebonite oxidises to a brown surface under light, and sulphur odour remains in poorly finished parts.

Cut and test samples before shipping. See our quality inspection guide.

Cambridge China Bridge sources ebonite rods, sheets and machined parts for UK makers of pipes, pens, instruments and electrical parts, checking the moulding plant first. See factory verification.