Zinc Dust for Diamond Polishing Compounds
Ultra-fine zinc dust meeting chapter note (c) specifications, used as a binder in diamond polishing slurries. It is classified under tariff item 7903.90.00 as other zinc dust, since it is not covered by a more specific 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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the dust is not specifically classified elsewhere
Zinc dust is generally classified under 7903.10, but this item covers other zinc dust not elsewhere specified.
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
• Confirm the product meets the zinc dust definition: at least 80% by weight passes a 63-micron sieve and contains at least 85% metallic zinc
• Provide a certificate of analysis to support classification
• Verify if the dust is subject to any Canadian hazardous materials regulations for shipping
Related Products under Tariff item 7903.90.00
Atomized Zinc Powder for Paints
Atomized zinc powder, produced by atomizing molten zinc, is a fine metallic powder used primarily as an anti-corrosion pigment in zinc-rich primers and industrial coatings. It qualifies as a zinc powder under tariff item 7903.90.00, which covers zinc powders other than dust, and is distinct from zinc dust obtained by vapor condensation.
Galvanizing Zinc Dust Recovery Powder
Recovered zinc powder from galvanizing kettle dross is processed to meet powder specifications and used in powder coating applications. It is classified as a zinc powder under tariff item 7903.90.00, as it is not vapor-condensed dust and meets the definition of powders in the chapter notes.
High-Purity Zinc Dust for Paint Pigments
High-purity spherical zinc dust from vapor condensation, used in anti-corrosive paint formulations due to its fine particle size. It meets the chapter definition of zinc dust and is classified under tariff item 7903.90.00 as other zinc dust, since it is not covered by a more specific tariff item.
High-Purity Zinc Powder for Batteries
High-purity zinc powder with over 99% zinc content, used as an anode material in alkaline batteries. It is a zinc powder under tariff item 7903.90.00, distinct from zinc dust, and is not excluded by the section notes since it is not an article of Section XVI.
Industrial Zinc Dust for Chemical Synthesis
High-grade zinc dust with 90%+ metallic content and fine particle distribution, used as a reducing agent in organic synthesis. It meets the chapter definition of zinc dust and is classified under tariff item 7903.90.00 as other zinc dust, since it is not covered by a more specific tariff item.
Metallic Zinc Dust for Pyrotechnics
Fine spherical zinc dust from zinc vapor condensation, containing at least 85% metallic zinc, used in pyrotechnic compositions. It meets the chapter definition of zinc dust and is classified under tariff item 7903.90.00 as other zinc dust, since it is not covered by a more specific tariff item.