Antimony-Doped Tin Oxide (ATO) Powder
Antimony-doped tin oxide (ATO) is a powder consisting of tin dioxide doped with antimony to impart electrical conductivity. While it is a metal oxide, the doping introduces an additional element, making it a mixture rather than a single chemically defined compound. However, it is classified under tariff item 2825.90.00 as an 'other' inorganic base or metal oxide, consistent with its oxide character.
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 ATO is mixed with binders or other additives for conductive coatings
Prepared mixtures for specific uses fall under Chapter 38.
If the ATO is used as a pigment or colouring matter
Inorganic pigments of Chapter 32 are excluded from Chapter 28.
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
• Be prepared to demonstrate that the antimony doping does not render the product a separate chemically defined compound
• Provide technical data sheets showing the oxide basis of the product
• If the ATO is dispersed in a polymer or solvent, classification may shift to Chapter 38 or 39
Related Products under Tariff item 2825.90.00
Beryllia Ceramic Powder
Beryllia ceramic powder is a high-purity form of beryllium oxide (BeO) used in aerospace and electronics for its thermal and insulating properties. It is a chemically defined inorganic compound, not a finished ceramic article, and is therefore classified under this tariff item for other inorganic bases and metal oxides.
Beryllium Hydroxide Flakes
Beryllium hydroxide flakes are a chemically defined metal hydroxide produced from beryl ore. They are used as a precursor in nuclear and ceramic applications and are classified here as an inorganic base.
Beryllium Oxide Powder
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Cadmium Oxide Catalyst Precursor
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Cadmium Oxide for Battery Manufacturing
Cadmium oxide powder for battery manufacturing is a pure CdO form used as the active cathode material in nickel-cadmium (NiCd) rechargeable batteries. It is a chemically defined inorganic oxide of cadmium, falling under tariff item 2825.90.00 as 'Other' metal oxides. The product is not excluded by Chapter 28 notes.
Cadmium Oxide for Electroplating Solutions
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