Tungsten Silicide Powder
Tungsten silicide (WSi2) powder is a refractory intermetallic compound used in microelectronics for gate electrodes and VLSI components. It is classified under 2850.00.00 as a chemically defined silicide of tungsten.
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 silicide contains carbide compounds
Carbides are excluded from heading 28.50.
If the silicide is doped for use in electronics and in wafer form
Doped chemical elements for electronics in disc or wafer form fall under 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
• Ensure the silicide is not a carbide, as that would move it to heading 28.49
• Provide a certificate of analysis to confirm chemical definition
• Check if the powder is subject to any special import permits for electronics materials
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