Silicon Ingot Molds for Semiconductor Production
Quartz or graphite molds for growing silicon ingots via the Czochralski process in semiconductor wafer manufacturing. These molds shape the solidifying silicon crystal into ingot form, aligning with the metallurgy-like polysilicon casting, and are classified 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 molds are used for casting metals other than ingots
Heading 8480 covers moulds for metal foundries, which may apply if the molds are not specifically for ingot production.
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
• Be prepared to demonstrate that the molds are used for ingot casting, not for semiconductor device manufacturing
• Provide technical specifications and end-use documentation
• Consult a customs broker for classification advice if the molds are part of a larger semiconductor production line
Related Products under Tariff item 8454.20.00
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Bottom-Pouring Ladle for Steel Casting
Bottom-pouring ladle enabling controlled molten steel flow through a bottom nozzle into molds, reducing oxidation. Used in continuous casting operations with a specialized refractory plug system, and classified as a ladle under this tariff item.
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Bottom-Pouring Steel Ingot Mold
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Cast Iron Ingot Mold for Zinc Die Casting
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Cast Iron Ladles for Steel Foundry Pouring
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