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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing significant hydride compounds
Hydrides of nonmetals including silane derivatives fall under heading 2850, not pure silicon.
If prepared with organic stabilizers or additives
Chemical preparations with organic substances excluded from Chapter 28 per chapter notes.
If purity measured below 99.99% threshold
Subheading 2804.69 covers all other silicon not meeting the high-purity specification.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Maintain chain-of-custody documentation proving purity from deposition through packaging
• Declare correct value based on spot market prices for polysilicon to avoid customs valuation disputes
• Segregate from lower-purity grades during storage to prevent contamination and reclassification
Related Products under HTS 2804.61.00.00
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.
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.
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.