Hyper-Pure Silicon Cylinders
Hyper-pure silicon cylinders containing at least 99.99% silicon, intended for advanced semiconductor fabrication. These cylinders are in unworked rod or cylinder form, as required by Chapter 28 Note 8, and qualify as chemically defined elemental silicon 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 |
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.
If the cylinders are cut into discs, wafers, or similar forms.
Chapter 28 Note 8 directs such forms to heading 38.18.
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 cylinders are not doped or cut into wafers, as that would shift classification to heading 38.18
• Keep documentation showing the silicon purity and unworked state for CBSA inspection
• If the cylinders are packaged with stabilizers or anti-dusting agents, ensure these do not alter the product's general use
Related Products under Tariff item 2804.61.00
Electronic-Grade Polysilicon Rods
Electronic-grade polysilicon rods with a silicon content of 99.99% or higher, produced via the Siemens process for semiconductor manufacturing. These rods are chemically defined elemental silicon in an unworked form, meeting the purity threshold of tariff item 2804.61.00.
Monocrystalline Silicon Chunks
Monocrystalline silicon chunks with a silicon content of at least 99.99% by weight, used as raw material for semiconductor and solar wafer slicing. These chunks are chemically defined elemental silicon in an unworked form, meeting the purity criteria of tariff item 2804.61.00.
Polycrystalline Silicon Ingots
Polycrystalline silicon ingots with a silicon content of 99.99% or higher, used primarily in the production of photovoltaic cells for solar panels. These ingots are chemically defined elemental silicon in an unworked form, meeting the purity threshold of tariff item 2804.61.00.
Solar-Grade Silicon Bricks
Solar-grade silicon bricks of 99.99% purity, cut from polysilicon ingots and used directly for solar wafer production. These bricks are chemically defined elemental silicon in an unworked form, meeting the purity criteria of tariff item 2804.61.00 before final wafer slicing.