Methylene Diphenyl Diisocyanate From the People's Republic of China: Amended Final Determination of Sales at Less Than Fair Value and Antidumping Duty Order
Commerce amended the final determination for MDI from China, increasing dumping margins and expanding the antidumping duty order. Importers must now pay higher cash deposits and may face retroactive duties.
Aforeworn detected this change in the Small Cross-Border Importers space on July 5, 2026 and published this briefing so affected operators are forewarned rather than caught off guard. It is rated High urgency. Importers of methylene diphenyl diisocyanate (MDI) from China, including chemical distributors, foam manufacturers, and downstream users. should confirm how it applies to their specific situation before acting. There is a time constraint attached: Immediately for new entries; retroactive entries may require amendment within 30 days.. Acting after that point can mean penalties, a lapsed licence, or lost eligibility — exactly the kind of surprise Aforeworn exists to prevent. Aforeworn monitors Small Cross-Border Importers continuously and turns every detected change into a plain-English briefing like this one, so you always know first. Forewarned is forearmed.
What changed
The dumping margin was revised upward, and the antidumping duty order now covers additional exporters. Cash deposit rates for entries of MDI from China are increased.
Who it affects
Importers of methylene diphenyl diisocyanate (MDI) from China, including chemical distributors, foam manufacturers, and downstream users.
What you must do
Review all current and pending imports of MDI from China; adjust customs entries to reflect new duty rates; ensure correct HTS classification (2929.10.8010).
Deadline
Immediately for new entries; retroactive entries may require amendment within 30 days.
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