Synthetic Fused Silica Boule
>- A cylindrical boule of synthetic fused silica created via flame hydrolysis or electric fusion, serving as stock material for semiconductor and UV optic manufacturing. Classified as glass in the mass of fused silica.
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 |
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
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 boule is sliced into wafers
Wafers of fused quartz are classified under heading 70.02.
If the boule is ground or polished
Worked glass of heading 70.06 applies to processed boules.
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
• >- Verify that the boule is in its raw, unworked state; any slicing or polishing would change the classification
• Keep documentation of the manufacturing process (flame hydrolysis or electric fusion)
• If the boule is for semiconductor use, consider whether it qualifies for duty relief under certain programs
Related Products under Tariff item 7001.00.00
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