HS Code 3921

Reinforced or Cellular Plastic Sheets

HS code 3921 includes cellular or reinforced plastic plates and strips, covering materials like bubble wrap and composite plastic panels.

4-digit Section VIIFCL

HS Code 3921 — Reinforced or Cellular Plastic Sheets

This code applies to plastic plates, sheets, and films that are either 'cellular' (foam-like or containing air pockets) or reinforced with other materials like textiles or glass fibre. This includes heavy-duty industrial materials and cushioning.

What's included

  • Bubble wrap
  • Polystyrene foam boards
  • Reinforced plastic tarpaulin-style sheets
  • Fibreglass-reinforced plastic panels

What's excluded

  • Textile fabrics impregnated with plastic → use 5903 (If the textile gives the product its essential character, it belongs in Chapter 59.)

Common examples

  • Air-bubble packaging film
  • Expanded polystyrene (EPS) sheets
  • Glass-fibre reinforced polyester sheets
  • Closed-cell polyethylene foam

Frequently asked questions

What determines if it's 3920 or 3921?

Use 3921 if the plastic is foamed (cellular) or has internal reinforcement like metal mesh or textile fibers.

Trade & shipping notes

  • Typical duty range: 3% - 8%
  • Documentation: Often subject to specific fire safety standards for construction use.
  • Typical shipping mode: FCL
  • Top exporters: China, USA, Germany, Italy
  • Top importers: Vietnam, Canada, France, Mexico

Key takeaway

The 'catch-all' for complex plastic sheeting, including foam and reinforced composites.

Related HS codes

Tired of HS code lookups?

CargoMode extracts HS codes directly from commercial invoices, packing lists, and CMRs — no manual lookup, no transcription errors.