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Fused Quartz Glass Slab

>- Rectangular slab of fused quartz glass in bulk mass form, ideal for slicing into substrates or windows in photonics applications. It qualifies as unworked glass in the mass of fused silica, where cutting to shape does not affect classification.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳ChinaFree—Free
🇲🇽MexicoFree—Free
🇺🇸United StatesFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

PGA flags

No agency flag on this HTS number in the CBSA Single Window matching criteria.

CBSA Single Window matching criteria, unknown

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7003.30.00Same rate: Free

If the slab is cast or rolled into sheets

Cast or rolled glass sheets fall under heading 70.03.

7006.00.00Same rate: Free

If the slab is worked (e.g., polished or edged)

Worked glass of heading 70.06 remains there even if it has the character of an article.

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

• >- Note that cutting to shape does not make the glass "worked" per Chapter 70 Note 2(b), but any polishing or coating would

• Keep the slab in its raw, unpolished state to stay under this item

• Provide a detailed product description to the CBSA to avoid misclassification

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.