WASHINGTON, DC, March 19, 2025-

Four major U.S. producers of polypropylene corrugated boxes – CoolSeal USA Inc., Inteplast Group Corporation, SeaCa Plastic Packaging, and Technology Container Corp. (collectively, "Petitioners") – today filed antidumping and countervailing duty petitions alleging that unfairly traded imports of polypropylene corrugated boxes from the People's Republic of China ("China') and the Socialist Republic of Vietnam ("Vietnam") are a cause of material injury – and also threaten further injury – to the domestic industry. The antidumping case alleges that Chinese and Vietnamese producers engaged in unfair price discrimination in the U.S. market. The Petitioners also filed a countervailing duty petition alleging that the Chinese government has provided actionable subsidies to producers of polypropylene corrugated boxes in China. The petitions were filed concurrently with the United States Department of Commerce ("Commerce Department") and the United States International Trade Commission ("USITC"), the two federal government agencies that will analyze the Petitioners' request for relief and issue preliminary and final determinations over the next 12-13 months.

The Petitioners filed the petitions in response to a surge in low-priced imports of polypropylene corrugated boxes from China and Vietnam that have injured the U.S. industry. The combined volume of imports from China and Vietnam has increased nearly five-fold between 2022 and 2024. Chinese and Vietnamese producers have massive capacity to produce polypropylene corrugated boxes and if left unchecked will continue to surge at even greater volumes.

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