Agglomerated Cork Stoppers for Lab Glassware

Conical or cylindrical stoppers from agglomerated cork for sealing Erlenmeyer flasks and test tubes in laboratory settings. Classified in HTS 4504.10.47.00 as 'other' stoppers of agglomerated cork in solid cylinder form. They offer chemical resistance and reusability for scientific experiments.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

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

7017.90.50.00Higher: 41.7% vs 35%

If part of laboratory glassware closure sets

Lab glass articles and their closures often stay in Chapter 70.

4504.10.20.00Same rate: 35%

If for champagne-style mushroom-shaped stoppers

Specific champagne cork configurations have dedicated subheadings.

9027.90Lower: 10% vs 35%

If imported within scientific instrument kits

Parts for lab instruments like microscopes fall under Chapter 90.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Certify for lab-grade purity; provide MSDS sheets confirming no contaminants

Size tolerances must match glassware specs to avoid rejection as unfit

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