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Glass Laboratory Vials Stoppers

Solid glass stoppers with ground glass joints for sealing laboratory vials containing chemicals or samples. They are 'other closures of glass' under HTS 7010.20.30.00 for conveyance of goods in scientific packing.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.2%+37.5%42.7%
🇲🇽Mexico5.2%+10.0%15.2%
🇨🇦Canada5.2%+10.0%15.2%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

7017.10.30.00Lower: 37.5% vs 42.7%

If designed specifically for laboratory apparatus

Glassware specialized for lab use like volumetric flasks falls under heading 7017, not general closures.

7010.90Lower: 12.5% vs 42.7%

If imported with pharmaceutical vials as a set

Assembled pharmaceutical containers with closures are classified as complete units.

6909.90.00.00Lower: 41.5% vs 42.7%

If ceramic ground-glass joint style

Ceramic lab crucibles and closures go to Chapter 69, excluding pure glass items.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Include material safety data sheets (MSDS) for chemical resistance verification, crucial for lab import compliance

• Document as 'glass closures for vials' separately from vials to stay in 7010.20, avoiding 7017 lab glassware

• Avoid mislabeling as 'lab equipment' which could trigger 9027 classification for scientific instruments