Unbleached Containerboard Liner 280 gsm
Unbleached linerboard for containerboard production, 280 g/m² with mechanical/semi-chemical pulp blend (<80% sulfate). Provides durable outer ply for double-wall corrugated. Fits 4805.93.40.30 as heavy, uncoated other linerboard.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If multi-ply construction
Multi-ply paperboard ≥225 g/m² has dedicated subheading 4805.91.10.
If sack kraft specs despite weight >115 g/m²
Sack kraft defined by tensile/tear regardless of typical weight range.
If cut into boxes or converted packaging
Converted paper products become articles of heading 4819.
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Import Tips & Compliance
• Specify 'unbleached' status accurately – affects brightness testing
• Avoid mixing with bleached stock in same entry to prevent averaging issues
• Confirm no surface sizing; even light treatments shift to coated categories
Related Products under HTS 4805.93.40.30
Recycled Content Linerboard 300 gsm
Uncoated linerboard in rolls weighing 300 g/m², produced with less than 80% chemical sulfate wood pulp, primarily using recycled fiber content. Used as the outer layer in corrugated boxes for packaging consumer goods. Falls under HTS 4805.93.40.30 due to its weight over 225 g/m² and non-sulfate dominant pulp composition.
Semi-Chemical Linerboard 250 gsm Rolls
Linerboard made from semi-chemical pulp processes (less than 80% sulfate), weighing 250 g/m² in large rolls for corrugator machines. Provides strength for box liners in shipping containers. Classified in 4805.93.40.30 as other uncoated linerboard over 225 g/m² with non-dominant sulfate pulp.
Mechanical Pulp Linerboard 225 gsm Sheets
Uncoated linerboard sheets at exactly 225 g/m² basis weight, derived from mechanical wood pulp with minimal sulfate content. Suitable for manufacturing heavy-duty packaging facings. Meets HTS 4805.93.40.30 for linerboard ≥225 g/m² and <80% chemical sulfate pulp.
High-Strength Recycled Linerboard 350 gsm
Heavyweight linerboard (350 g/m²) incorporating over 50% recycled content and balance mechanical pulp, totaling <80% sulfate fibers. Designed for export pallet wrap boxes. HTS 4805.93.40.30 applies to this uncoated, heavy linerboard configuration.
Economy Grade Linerboard 230 gsm Rolls
Cost-effective linerboard rolls at 230 g/m² using groundwood mechanical pulp with <20% sulfate addition. Common for domestic packaging liners. Classified under HTS 4805.93.40.30 for ≥225 g/m² linerboard with low sulfate content.