OM4 Ball Clay
OM4 ball clay is a coarse, high-plasticity grade ideal for outdoor sculpture and architectural ceramics, offering robust green strength. It is a natural, uncalcined ball clay, falling under 'other clays'.
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 |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
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
• Ensure the clay is not chemically treated or blended with other materials
• Keep documentation of the clay's sedimentary origin to support classification
• Verify the product is not calcined, as that would change its tariff classification
Related Products under Tariff item 2508.40.00
Attapulgite Clay Granules
Granular attapulgite clay in its natural, non-expanded state, used as a suspension agent in pesticides and drilling fluids. It is a natural clay that has not been subjected to processing beyond crushing or grinding, aligning with the scope of heading 25.08.
Ball Clay for Ceramics
High-plasticity ball clay mined for use in fine porcelain and sanitaryware production. As a natural, unexpanded clay, it falls under 'other clays' in heading 25.08, not being a kaolin or fire clay.
Bentonite Clay Lumps
Natural bentonite clay in lump form, valued for its swelling properties in drilling muds, cat litter, and sealants. It is a natural clay that has not been expanded or processed beyond mechanical means, fitting the scope of 'other clays'.
Blue Ridge Ball Clay
Blue Ridge ball clay from Georgia deposits provides medium plasticity for tile bodies and engobes, with good suspension properties. It is a natural, uncalcined ball clay, falling under 'other clays'.
Carolina Ball Clay
Carolina ball clay from North Carolina is valued for electrical porcelain insulators due to its high fired strength and low electrical conductivity. It is uncalcined and natural, falling under 'other clays'.
Common Brick Clay
Surface-mined common clay suitable for traditional brick and tile production. It is raw and uncalcined, falling under 'other clays' as a natural clay not otherwise specified.