U.S. imports of Agglomerated Cork Blocks, Plates, Sheets, Strip, Tiles, and Solid Cylinders (SITC 63321) totaled $9.0M in August 2026, imported from 27 countries.
Importers of Agglomerated Cork Blocks, Plates, Sheets, Strip, Tiles, and Solid Cylinders paid $225K in duties in August 2026, an average duty rate of 2.50% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Agglomerated Cork Blocks, Plates, Sheets, Strip, Tiles, and Solid Cylinders imports of $9.0M in August 2026 ran 10% above the year-to-date monthly average of $8.2M.
Last updated: August 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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305 import shipments a month
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.
Basic heading 350 of 766 in section 6
Basic heading 63321 · $9.0M of $27.0B
Imports · August 2026
origin
Portugal and Spain together supply 82% of it. Thailand pays 12.4% duty; France 0.0%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.
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ImportsExports
Imports
$9.0MYoY · free account
Exports
$601KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $94.4M of Agglomerated Cork Blocks, Plates, Sheets, Strip, Tiles, and Solid Cylinders and exported $4.2M.
Through August 2026. Source: U.S. Census Bureau.