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SITCSection 6
U.S. imports of agglomerated cork blocks, plates, sheets, strip, tiles, and solid cylinders (SITC 63321) totaled $10.4M in April 2026, traded with 21 countries.
Importers of Agglomerated Cork Blocks, Plates, Sheets, Strip, Tiles, and Solid Cylinders paid $913K in duties in April 2026 — an effective duty rate of 8.9% on $10.3M in dutiable value, based on actual customs collections rather than the published tariff schedule. Agglomerated Cork Blocks, Plates, Sheets, Strip, Tiles, and Solid Cylinders imports of $10.4M in April 2026 ran 36% above the year-to-date monthly average of $7.6M.
Last updated: April 2026 dataManufactured by bonding cork granules under heat and pressure — with or without synthetic binders — agglomerated cork in block, plate, sheet, strip, tile, and cylinder form serves as a primary input for flooring, insulation panels, and gasket blanks. The specific geometric forms listed in this heading (blocks, plates, sheets, strip, tiles, solid cylinders) distinguish it from the NES agglomerated cork heading, making the physical form of the imported product the decisive classification factor. Density and binder content are the key commercial specifications that buyers and sellers negotiate.
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Agglomerated cork can be produced with natural binders (using cork's own suberin resins under high pressure) or with synthetic adhesives. Binder type affects density, flexibility, and suitability for food-contact applications, but does not change the SITC classification — both types fall here if they take the enumerated geometric forms. Buyers in food packaging or wine closure applications typically specify natural-binder grades.
A manufacturer's process declaration or material data sheet describing the granulation and bonding process is the most reliable documentation. Microscopic examination showing granular structure rather than continuous bark tissue is the technical confirmation. This distinction matters because natural and agglomerated cork carry different headings and may carry different duty rates.
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Monthly import values over time