Basalt Granules 4-8mm
Basalt granules, sized 4-8mm, are produced by crushing basalt rock of heading 25.16 and are used in railroad ballast, concrete additives, or filtration media. The crushing and sizing are mechanical processes allowed by Chapter 25 Note 1. They are not heat-treated or mixed, so they are classified as granules of stones of heading 25.16 under this tariff item.
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 granules are larger and used as gravel for road metalling
Larger crushed stone for road construction falls under the first part of heading 25.17.
If the granules are bonded into grinding wheels or abrasives
Processed abrasive articles are excluded from Chapter 25 and fall under Chapter 68.
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
• Verify the basalt granules are not heat-treated, as heat treatment could shift classification
• Provide CBSA with the source rock type and size distribution to confirm heading 25.16 origin
• If used for filtration, ensure no additional processing beyond crushing and sizing
Related Products under Tariff item 2517.49.00
Anorthosite Granules
Anorthosite granules are crushed from anorthosite, a rock of heading 25.16, and are used as fillers in construction and industrial applications. The granules are processed by crushing and sizing, which is permitted under Chapter 25 Note 1. They are not heat-treated or mixed, so they fall under this tariff item for granules of stones of heading 25.16.
Crushed Marble Granules
Crushed marble granules, sized 2-5mm, are derived from marble stone of heading 25.15 and are used in decorative concrete mixes and landscaping. The crushing process is a mechanical operation permitted under Chapter 25 Note 1. They are not heat-treated or mixed, so they are classified as granules of stones of heading 25.15 under this tariff item.
Gneiss Granules
Gneiss granules, sized 2-4mm, are produced by crushing gneiss metamorphic rock of heading 25.16 and are used in concrete countertops or garden mulch. The crushing and sizing are mechanical processes allowed by Chapter 25 Note 1. They are not heat-treated or mixed, so they are classified as granules of stones of heading 25.16 under this tariff item.
Granite Chippings 3-6mm
Granite chippings, sized 3-6mm, are crushed from granite stone of heading 25.16 and are used for pathway surfacing, railway ballast fines, or asphalt mixes. The chippings are produced by mechanical crushing and are not heat-treated or mixed, as permitted by Chapter 25 Note 1. They are classified as chippings of stones of heading 25.16 under this tariff item.
Limestone Powder Fines
Limestone powder fines, with particle size under 2mm, are derived from crushed limestone of heading 25.15 and are used in cement production, animal feed supplements, or soil amendment. The powder is obtained by mechanical grinding, which is permitted under Chapter 25 Note 1. It is not heat-treated or mixed, so it is classified as powder of stones of heading 25.15 under this tariff item.
Micaceous Granite Powder
Micaceous granite powder is produced by crushing granite of heading 25.16 and contains mica flakes, used in paints. The powder is obtained by mechanical grinding and is not heat-treated or mixed, as allowed by Chapter 25 Note 1. It is not pure mica, so it is classified as powder of stones of heading 25.16 under this tariff item.