US anti-dumping duties imposed on Vietnamese polypropylene boxes
The U.S. Department of Commerce has issued a final affirmative determination of dumping for polypropylene corrugated boxes from Vietnam, covering the investigation period of July 1–December 31, 2024. The finding establishes that Vietnamese exporters are selling these boxes at less than fair value (LTFV) in the U.S. market and that critical circumstances exist. This determination triggers the imposition of anti-dumping duties and will affect importers, freight forwarders, and e-commerce merchants sourcing corrugated packaging from Vietnam.
Photo: Nguyễn Thị Thảo Hà (Ha Nguyen) / Pexels# US Anti-Dumping Duties on Vietnamese Polypropylene Corrugated Boxes
On May 20, 2026, the U.S. Department of Commerce issued a final affirmative determination that polypropylene corrugated boxes from the Socialist Republic of Vietnam are being sold in the United States at less than fair value (LTFV). The investigation period covers July 1, 2024, through December 31, 2024.
Who Is Affected
This anti-dumping determination applies to polypropylene corrugated boxes—a packaging material classified under HS Chapter 39 (plastics and articles thereof). The ruling directly impacts:
- E-commerce merchants importing Vietnamese corrugated packaging for domestic shipments or fulfillment
- Freight forwarders and logistics providers sourcing packaging materials from Vietnam
- SMB exporters and retailers relying on Vietnamese suppliers for corrugated box inventory
- Distributors and wholesalers in the packaging supply chain
"Commerce determines that polypropylene corrugated boxes from the Socialist Republic of Vietnam are being, or are likely to be, sold in the United States at less than fair value (LTFV)." — U.S. Department of Commerce
The final affirmative determination of critical circumstances means that duties may apply retroactively to imports entered during the period prior to the preliminary determination, increasing the financial exposure for recent shipments.
What This Means for Shippers
Importers of Vietnamese polypropylene corrugated boxes must immediately adjust landed-cost calculations to account for anti-dumping duties. Review all outstanding purchase orders and in-transit shipments from Vietnam entered after July 1, 2024; you are now liable for additional duties on entry. Contact your customs broker or freight forwarder now to confirm duty rates, request duty-payment deferrals where possible, and evaluate alternative suppliers or tariff-mitigation strategies. Failure to account for these duties will inflate your true cost of goods and compress margins on any product using Vietnamese packaging. Use our landed-cost calculator to model the impact before placing new orders.
