High-Purity Fused Silica Lump
>- Irregular lumps of high-purity fused silica obtained directly from the melting furnace, used in refractory linings or remelting. This is glass in the mass of fused quartz, excluding scrap or waste.
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 |
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
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 lumps are used as refractory material
Articles of mineral substances may fall under Chapter 68.
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
• >- Distinguish these lumps from scrap or waste; scrap is classified under a different subheading
• Provide evidence that the lumps are primary products, not recycled material
• If the lumps are intended for remelting, keep them free of contaminants to avoid reclassification
Related Products under Tariff item 7001.00.00
Amber Liquor Bottle Glass Scrap
Processed scrap from amber-colored liquor and pharmaceutical bottles, ready for remelting into new packaging. This cullet is classified under tariff item 7001.00.00 as waste and scrap of glass, valued for its iron oxide tint in recycling applications, and is not excluded by the cathode-ray tube provision.
Architectural Glass Melt Lumps
>- Lumps of melt from architectural flat glass production, unworked for remelt. These are glass in the mass, other than fused quartz, prior to sheet forming.
Automotive Windshield Glass Cullet
Crushed tempered and laminated windshield glass from repair shops, delaminated for cullet recovery. This product is classified under tariff item 7001.00.00 as waste and scrap of glass because it has been processed to remove interlayers and is in a fragmented mass form suitable for recycling.
Borosilicate Glass Chunks
>- Massive chunks of borosilicate glass, known for thermal resistance, in unworked form straight from the melting furnace. This is other glass in the mass, used as raw material for labware and cookware.
Borosilicate Glass Labware Cullet
Crushed rejects from Pyrex-style lab beakers and tubes, consisting of high-silica content glass scrap. This cullet is classified under tariff item 7001.00.00 as waste and scrap of glass, valued for its thermal resistance in remelt applications, and is not excluded by the cathode-ray tube provision.
Clear Container Glass Scrap
Shards and fragments from discarded clear glass bottles, processed into uniform cullet for furnace remelting. This product is classified under tariff item 7001.00.00 as waste and scrap of glass, distinct from colored or specialty glass, and is not excluded by the cathode-ray tube provision.