Uncoated Duplex Board 300 g/m²
Uncoated duplex paperboard in sheets, weighing 300 g/m², made from recycled and virgin fibers for multi-ply structure. Classified under HTS 4805.93.40 as other uncoated paperboard ≥225 g/m², suitable for rigid packaging like shoeboxes. Lacks coating and further working beyond basic note 3 processing.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If coated on one or both sides
Coating changes classification from uncoated 4805 to coated paperboard in 4810.
If mainly from recovered waste paper with Mullen burst ≥2 kPa·m²/g
High recycled content with burst specs fits 4805.24 testliner subheading.
If sack kraft paper ≤115 g/m²
Much lighter weight and specific kraft specs move it to sack kraft category.
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Import Tips & Compliance
• Declare exact grammage with supplier certificates; customs may weigh samples to confirm ≥225 g/m²
• Avoid any surface treatment that could be seen as coating, risking shift to chapter 48 coated headings
• Label as 'uncoated paperboard' and provide pulp origin details to meet HTS specificity
Related Products under HTS 4805.93.40
Heavyweight Uncoated Kraftliner Paperboard
This is uncoated paperboard in rolls, weighing 250 g/m², with over 80% sulfate wood fibers, meeting minimum Mullen bursting strength for kraftliner exceeding 637 kPa at 200 g/m² equivalent. It falls under HTS 4805.93.40 as other uncoated paperboard weighing 225 g/m² or more, not further worked beyond chapter note 3 specs. Primarily used for high-strength packaging and box linings.
Sulfite Wrapping Paperboard 250 g/m²
Machine-glazed uncoated paperboard weighing 250 g/m², over 40% sulfite wood fibers, ash ≤8%, Mullen burst index ≥1.47 kPa·m²/g. Fits HTS 4805.93.40 as other heavy uncoated paperboard for wrapping applications. Meets chapter specs without further processing.
Chipboard 350 g/m² Uncoated
Dense uncoated chipboard from recycled fibers, 350 g/m² in sheets, used for book covers and backing boards. Classifies in HTS 4805.93.40 as other uncoated paperboard weighing 225 g/m² or more, per chapter note 3.
Greyboard Uncoated 225 g/m²
Uncoated greyboard paperboard at minimum 225 g/m², made from mixed recycled waste, dull grey color, for construction and model making. HTS 4805.93.40 covers this as other heavy uncoated paperboard not specially processed.
Heavy Straw Pulp Board 260 g/m²
Uncoated paperboard from straw pulp via mechanical-chemical process, 260 g/m² rolls, for sustainable packaging. Falls under HTS 4805.93.40 as other uncoated ≥225 g/m², outside specific straw fluting note.
Industrial Backing Paperboard 400 g/m²
Thick uncoated paperboard 400 g/m² for backing in laminates and displays, mixed fiber composition. HTS 4805.93.40 as other heavy uncoated paperboard in sheets.