Wafer Polishing Slurry Gas Purifier Cartridge
A cartridge part for purifying nitrogen gas used in slurry delivery systems for semiconductor wafer polishers. It removes impurities from the gas to ensure consistent polishing conditions and achieve flatness tolerances. This part is classified under tariff item 8421.99.00 as a component of gas purifying apparatus for semiconductor wafer processing.
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 cartridge is a complete gas purifying machine
Complete gas purifying machines are classified under 8421.39, while this item covers parts.
If the cartridge is part of a complete wafer polishing machine
Machines for polishing semiconductor wafers are classified under heading 84.86.
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 cartridge as a part of a gas purification system for wafer polishers to support classification under 8421.99.00
• The CBSA may require a specification sheet showing the cartridge's role in purifying nitrogen gas
• Check if the cartridge is eligible for duty-free entry under a trade agreement for semiconductor equipment parts
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