Crushed Cork Aggregate for Concrete
Granulated cork aggregate used as a lightweight additive in concrete mixes for thermal insulation and reduced weight in construction panels. HTS 4501.90.40.00 applies to this crushed and granulated natural cork form.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +35.0% | 35% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-mixed in cement articles
Cement-based articles containing cork become Chapter 68 products.
If for Portland cement replacement
Processed cementitious materials with aggregates shift headings.
If chemically prepared mixtures
Prepared binders or mastics with cork fillers are chemical preparations.
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Import Tips & Compliance
• Test specific gravity to verify lightweight aggregate properties
• Comply with ASTM standards for concrete additives documentation
• Prevent moisture absorption during transit with sealed packaging
Related Products under HTS 4501.90.40.00
Granulated Cork Dust for Insulation
Finely granulated cork dust produced by grinding natural cork bark, used primarily as a lightweight thermal insulation filler in building materials and packaging. Classified under HTS 4501.90.40.00 as granulated cork, distinct from raw cork or waste, specifically prepared through crushing and grinding processes.
Ground Cork Powder for Gaskets
Ultra-fine ground cork powder derived from crushed cork, serving as a compressible filler in manufacturing industrial gaskets and seals. HTS 4501.90.40.00 applies to this ground form of natural cork, prepared solely by mechanical processing without binders.
Crushed Cork Granules for Flooring Underlay
Medium-sized crushed and granulated cork particles used as an acoustic and thermal underlay beneath laminate flooring. This product is classified under HTS 4501.90.40.00 for its form as crushed, granulated, or ground natural cork, prior to any agglomeration.
Granulated Cork for Wine Bottle Stoppers
Granulated cork obtained by grinding select quality cork bark, used as raw material for technical wine stopper production through agglomeration. HTS 4501.90.40.00 specifically covers this granulated form before further processing into shaped stoppers.
Ground Cork Filler for Shoe Soles
Finely ground cork used as a lightweight filler material in EVA or rubber shoe sole compounds, providing cushioning properties. This bulk ground cork is classified under HTS 4501.90.40.00 as simply prepared granulated or ground cork.
Crushed Cork for Industrial Absorbents
Coarsely crushed and granulated cork used in spill cleanup kits for absorbing oils and chemicals in industrial settings. HTS 4501.90.40.00 covers this processed form of natural cork prepared by crushing and granulation.