Tungsten(VI) Oxide Granules
Tungsten(VI) oxide granules are a granular form of WO3 used in gas sensor manufacturing and electrochromic devices. The physical form (granules) does not affect classification, as the product remains a chemically defined tungsten oxide. It falls under tariff item 2825.90.00 as 'Other' metal oxides.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is a tungstate
Tungstates are classified under heading 2841, not as oxides.
If the granules are mixed with other substances
Mixtures of oxides may fall under residual chemical product headings.
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
• Describe the product as tungsten(VI) oxide (WO3) granules, noting the granular form for clarity
• Confirm the duty rate with the CBSA, as it may vary by origin
• Provide a technical datasheet to support classification if the granules are mistaken for other tungsten compounds
Related Products under Tariff item 2825.90.00
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