Ground Cork for Vibration Dampening
Powdered ground cork used as a filler in composites for machinery mounts and vibration isolation pads in industrial equipment. This product falls under tariff item 4501.90.00 because it is pure ground cork, prepared solely by mechanical crushing and grinding, without any compounding or binding agents.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the cork is mixed with rubber or synthetic materials to form a composite
Composite materials containing cork and other substances are classified under heading 4504, which covers agglomerated cork and articles thereof.
If the cork is incorporated into finished rubber-based vibration mounts
Finished vibration isolation pads made primarily of rubber, even with cork fillers, fall under Chapter 40 for rubber articles.
If the cork is part of a complete machinery mount system
Complete machinery mounts with mechanical components are classified as machines under heading 8479, not as cork materials.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the cork has not been treated with oils, resins, or other substances, as such treatments may exclude it from this heading
• Keep records of the manufacturing process to demonstrate it is 'simply prepared' cork
• If the cork is imported in bags, ensure proper labelling of the country of origin and product description for CBSA inspection
Related Products under Tariff item 4501.90.00
Cork Bark Processing Waste
Mixed waste from cork bark boiling and drying processes, including small fragments and dust. This simply prepared material is destined for granulation in industrial applications, falling under tariff item 4501.90.00 as waste cork.
Cork Granules Waste
Granulated waste cork material derived from processing natural cork bark, collected from cork manufacturing facilities. It is crushed or ground, fitting tariff item 4501.90.00 as waste cork.
Cork Manufacturing Byproduct Granules
Granules byproduct from cork stopper and flooring production lines, simply crushed and suitable for thermal insulation production. This waste cork falls under tariff item 4501.90.00.
Cork Trimmings Scrap
Irregular scraps and trimmings from cork plank production, minimally crushed and recycled into expanded cork or insulation material. Classified as waste cork under tariff item 4501.90.00.
Crushed Cork Aggregate for Concrete
Granulated cork aggregate used as a lightweight additive in concrete mixes for thermal insulation and reduced weight in construction panels. This crushed and granulated natural cork form falls under tariff item 4501.90.00.
Crushed Cork Dust
Fine dust and crushed particles from cork waste, generated during trimming and shaping of cork bark. This byproduct is simply prepared and suitable for grinding, falling under tariff item 4501.90.00.