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Flask Neck Glass Stoppers

Ground-glass stoppers made by automatic machines for laboratory and perfume flasks used in packing liquids. They ensure leak-proof seals and are under HTS 7010.20.20.00 as machine-produced closures.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.5%+35.0%37.5%
🇲🇽Mexico2.5%+10.0%12.5%
🇨🇦Canada2.5%+10.0%12.5%
🇩🇪Germany2.5%+10.0%12.5%
🇯🇵Japan2.5%+10.0%12.5%

Alternative Classifications

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

7017.10.30Lower: 35% vs 37.5%

If for laboratory end-use, not packing

Lab glassware has specific headings outside containers.

3303.00.10Lower: 35% vs 37.5%

If imported filled with perfumes

Perfume preparations classify under Chapter 33.

7010.90.20Same rate: 37.5%

If non-ground or handmade varieties

Different closure types go to 7010.90.

Not sure which classification is right?

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Import Tips & Compliance

• Specify ground finish tolerances in specs for proper duty assessment

• Separate from flasks in shipments to avoid set classification

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