High-Purity Ferrosilicon 90% Grade
High-Purity Ferrosilicon 90% Grade is a premium ferrosilicon with 90% silicon content and minimal impurities, used in high-grade steel and superalloy production. It is classified under tariff item 7202.29.00 as 'other' ferro-silicon because its silicon content exceeds the standard 55-80% range for subheading 7202.21. This product enables precise silicon control in demanding metallurgical applications.
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 |
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No agency flag on this HTS number in the CBSA Single Window matching criteria.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the silicon content is actually between 55% and 80%
Standard ferro-silicon with 55-80% silicon falls under this subheading, which may apply if the 90% claim is not substantiated.
If the product contains other alloying elements exceeding Chapter Note thresholds
Complex ferro-alloys with additional elements may be classified as other ferro-alloys.
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
• Include the certificate of analysis showing 90% silicon content and impurity levels to support classification under 7202.29.00
• Note that CBSA may verify the purity claims, so keep detailed production records
• Consider whether the product's high silicon content might affect its classification under other ferro-alloy headings
Related Products under Tariff item 7202.29.00
Atomized Ferrosilicon Powder
Atomized ferrosilicon powder with 75% silicon content, produced by atomization and used in powder metallurgy and welding electrodes. It retains the essential character of ferrosilicon as a ferro-alloy, and atomization does not alter its classification under this tariff item.
Atomized Ferrosilicon Powder 75%
Atomized ferrosilicon powder 75% is a finely atomized ferrosilicon powder with 75% silicon content, used in powder metallurgy and as a raw material for silicon-based compounds. Despite its powder form, it is classified under tariff item 7202.29.00 as 'other' ferro-silicon, as the powder form is not considered 'further working' per the chapter notes.
Crushed Ferrosilicon 10-50mm
Crushed ferrosilicon 10-50mm is crushed ferrosilicon lumps sized 10-50mm from 75% standard grade, optimized for submerged arc furnace feeding. It remains classified under tariff item 7202.29.00 as 'other' ferro-silicon, as crushing is not considered 'further working' per the chapter notes.
Ductile Iron FeSiMg 12% Magnesium Alloy
Ductile iron FeSiMg 12% magnesium alloy is a specialty ferrosilicon magnesium alloy containing 12% magnesium, used as a nodulizing agent in ductile iron production. It is supplied in standard foundry granules. This product falls under tariff item 7202.29.00 as 'other' ferro-silicon because its magnesium content exceeds 2% by weight, which is not covered by other subheadings of heading 72.02.
Electrolytic Ferrosilicon 85%
Electrolytic ferrosilicon 85% is a high-grade ferrosilicon produced via electrolytic process for ultra-low impurity levels in ESR steelmaking. It is classified under tariff item 7202.29.00 as 'other' ferro-silicon, as it does not meet the specifications of other subheadings and is compatible with vacuum arc remelting.
Ferrosilicon 65/70 Grade Lumps
Ferrosilicon lumps with 65-70% silicon content, used in foundries for deoxidation during iron casting. This product falls under this tariff item as 'other' ferrosilicon, not meeting the specifications for other subheadings.