Spherical Zinc Dust for Diamond Polishing
Spherical zinc dust produced by condensation of zinc vapor, with over 90% of particles passing a 63-micron sieve and 97% metallic zinc content. This meets the chapter's specific definition of zinc dust and is used in diamond polishing compounds.
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 |
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 product meets the chapter note definition of zinc dust (vapor condensation, 80% passing 63 microns, 85% metallic zinc)
• Provide a sieve analysis and purity certificate
• Check if the polishing compound application requires additional permits
Related Products under Tariff item 7903.90.00
Atomized Zinc Powder for Paints
Atomized zinc powder, produced by atomizing molten zinc, is a metallic powder distinct from zinc dust. It is used primarily as an anti-corrosion pigment in industrial paints and coatings, meeting the definition of 'powders' under chapter 79.
Galvanizing Zinc Dust Recovery Powder
Recycled zinc powder recovered from galvanizing kettle dross, processed to meet powder specifications. It is used in powder coating applications and qualifies as zinc powder under chapter 79, provided it meets the particle size and purity criteria.
High-Purity Zinc Dust for Paint Pigments
High-purity zinc dust from vapor condensation, with fine particle size (<63 microns), used in anti-corrosive paints. This meets the chapter's definition of zinc dust and is classified under the 'other' category for zinc dust.
High-Purity Zinc Powder for Batteries
Ultra-fine zinc powder with over 99% purity, specifically manufactured for use in alkaline battery anodes. This powder form is distinct from zinc dust and falls under the 'other' category of zinc powders, as it is not obtained by vapor condensation.
Industrial Zinc Dust for Chemical Synthesis
High-grade zinc dust with 90%+ metallic content and fine particle distribution (<63 microns), used as a reducing agent in organic synthesis. This meets the chapter's definition of zinc dust and is classified under the 'other' category.
Metallic Zinc Dust for Pyrotechnics
Fine spherical zinc dust from zinc vapor condensation, containing ≥85% metallic zinc, used in pyrotechnic compositions. This meets the chapter's definition of zinc dust and is classified under the 'other' category for zinc dust.