April 17th, 2025 – On April 7, 2025, the U.S. Department of Commerce launched investigations into whether polypropylene corrugated boxes from China and Vietnam are being sold in the U.S. at unfair prices or are receiving unfair government support (subsidies).
Case Numbers:
China: A-570-203 (antidumping), C-570-204 (countervailing)
Vietnam: A-552-850 (antidumping)
What’s Being Investigated: The focus is on polypropylene corrugated boxes — containers made from lightweight, durable plastic sheets with a hollow, fluted structure. These boxes may be:
One-piece, two-piece, or multi-piece
With or without handles, lids, or reinforcement
Printed or plain
Folded or flat
Any size or shape
Even lids/tops shipped separately are included.
Tariff Classification: These products fall under HTSUS code 3923.10.9000. However, the product description takes priority over the code for determining if goods fall under this investigation.
What Importers Should Know:
Goods imported after April 7, 2025 may be subject to antidumping and/or countervailing duties retroactively.
Comments on the scope can be submitted—details will be available in the official Initiation Notices once published in the Federal Register.
For more on enforcement, visit CBP’s Antidumping and Countervailing Duties page.
Read the full CSMS here: CSMS # 64708462 – Initiation of Antidumping and Countervailing Duty Investigations: Polypropylene Corrugated Boxes from the People’s Republic of China (China) and the Socialist Republic of Vietnam (Vietnam)
IMPORTANT NOTICE: On February 22, U.S. Customs and Border Protection (CBP) completed the migration of all ACE Secure Data Portal (ACE Portal) functionality to the modernized ACE Portal. Following the migration, CBP retired the legacy ACE Portal, and all ACE Portal functionality is now only available via the modernized platform. Any links/bookmarks previously used to access the ACE Portal should be removed and replaced with the following URL: ace.cbp.gov.
Should you have any questions, please contact our Import Compliance team.
