Polycrystalline Silicon Ingots
High-purity polycrystalline silicon ingots with 99.99% silicon content, used primarily in the production of photovoltaic cells for solar panels. This product falls under HTS 2804.61.00.00 as it is chemically defined elemental silicon meeting the purity threshold specified in the heading for nonmetals.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If doped for electronics and cut into wafers or discs
Doped silicon elements cut into wafers fall under 3818 per Chapter 28 note, excluding Chapter 28 forms.
If processed into monocrystalline solar cells
Finished photovoltaic cells are electrical goods in Chapter 85, not raw elemental silicon.
If purity below 99.99% silicon by weight
Lower purity silicon classified in the residual subheading 2804.69 for other silicon forms.
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Import Tips & Compliance
• Verify purity certification from supplier via chemical analysis reports to confirm ≥99.99% silicon content for proper classification
• Ensure documentation includes material safety data sheets (MSDS) due to fine dust hazards during handling
• Avoid misclassification as semiconductor wafers; ingots must be unworked forms per Chapter 28 notes
Related Products under HTS 2804.61.00.00
Monocrystalline Silicon Chunks
Chunks of monocrystalline silicon containing at least 99.99% silicon by weight, serving as raw material for semiconductor and solar wafer slicing. Classified under HTS 2804.61.00.00 as high-purity elemental silicon in unworked form per Chapter 28 definitions.
Electronic-Grade Polysilicon Rods
Polysilicon rods with 99.99+% purity silicon content, produced via Siemens process for semiconductor manufacturing. This chemically defined silicon meets HTS 2804.61.00.00 criteria as high-purity elemental nonmetal in cylindrical form.
Solar-Grade Silicon Bricks
Rectangular silicon bricks of 99.99% purity cut from polysilicon ingots, used directly for solar wafer production. Falls under HTS 2804.61.00.00 as it qualifies as high-purity elemental silicon before final wafer slicing.
Hyper-Pure Silicon Cylinders
Cylindrical hyper-pure silicon forms containing no less than 99.99% silicon, intended for advanced semiconductor fabrication. Classified in HTS 2804.61.00.00 as chemically defined high-purity silicon in unworked rod/cylinder form allowed by Chapter 28.