Natural Chalk for Soil Amendment
Granular or powdered natural chalk applied to acidic soils to raise pH levels in agriculture. Classified as 'other' chalk under tariff item 2509.00.00, as it is not processed beyond grinding or sieving, which is permitted by Chapter 25 Note 1.
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 chalk is marketed as agricultural lime
Agricultural lime is classified under heading 2521.
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 chalk is not mixed with other soil additives, which could change classification
• Declare as 'chalk, natural' and provide the particle size
• Verify that the chalk is not calcined, as agricultural lime may be classified elsewhere
Related Products under Tariff item 2509.00.00
Bulgarian Soft Chalk Lumps
Friable, soft lumps of natural chalk from Bulgarian deposits, valued for high whiteness in paper filler applications. Remains crude as it is neither powdered nor calcined post-mining, and is not processed beyond the crude state permitted by Chapter 25 Note 1.
Bulk Natural Chalk for Animal Feed
Coarse natural chalk grit used as a calcium supplement in poultry and livestock feed formulations. This unprocessed chalk remains under tariff item 2509.00.00 as it is not subjected to processing beyond crushing or grinding, which is permitted by Chapter 25 Note 1.
Chalk Filler for Cement Production
Ground natural chalk used as a functional filler in Portland cement manufacturing to adjust composition. This industrial 'other' chalk falls under tariff item 2509.00.00, as it is processed only by grinding, which is permitted under Chapter 25 Note 1.
Chalk for Glass Manufacturing
High-purity natural chalk selected for silica adjustment in specialty glass production. This industrial raw material chalk is classified under tariff item 2509.00.00, as it is not processed beyond washing or grinding, which is allowed by Chapter 25 Note 1.
Chalk Ore Concentrate
Concentrated natural chalk ore after basic washing and sizing, but before fine grinding, for further processing. This minimally processed 'other' chalk falls under tariff item 2509.00.00, as washing and sizing are permitted by Chapter 25 Note 1.
Chalk Powder for Industrial Fillers
Finely ground natural chalk powder (calcium carbonate) used as a filler in paints, plastics, and rubber manufacturing. This 'other' chalk is classified under tariff item 2509.00.00, as grinding is a permitted process under Chapter 25 Note 1.