Court Denied Refunds for Mislabeled Millwork Imports

Importers face permanent duty liabilities if they fail to protest entry classifications before U.S. Customs liquidation.

Updated on Oct. 6, 2026 in International Trade

Bold flat-color editorial illustration of a geometric beam intersecting a crate frame, representing the finality of trade and customs policy. — The U.S. Court of International Trade has ruled that importers cannot recover overpaid duties once entries are liquidated, affirming strict adherence to classification deadlines. AI Illustration. Upload story photo >

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Should businesses face strict financial penalties for clerical errors in their mandatory government filings?

The U.S. Court of International Trade recently sustained a ruling confirming that importers cannot recover overpaid duties once entries are liquidated. This decision impacts businesses that mislabeled millwork imports, barring retroactive adjustments to duty assessments.

Why it matters

This ruling underscores the critical importance of accurate entry classification, as the court confirmed that Section 1516a prevents duty adjustments after liquidation absent a timely protest. For operators, this creates a high-stakes environment where internal documentation and classification errors lead to unrecoverable financial losses.

The court upheld a system where importers face a 220.87% China-wide antidumping duty rate if they fail to document eligibility for lower individual rates. Firms must file formal entry protests within 180 days to preserve their ability to challenge duty assessments.

The players

U.S. Court of International Trade

An Article III federal court with exclusive jurisdiction over civil actions against the United States arising out of import transactions.

China Cornici Co. Ltd.

A manufacturer subject to significant antidumping duties on millwork products exported to the U.S. market.

Department of Commerce

A federal executive department responsible for investigating and setting antidumping and countervailing duty rates for imported goods.

The details

Importers involved in this case mistakenly filed millwork as Type 01 general-consumption entries instead of the required Type 03 duty-subject category. Because they failed to secure individual rates through proper documentation and missed the 180-day protest window, the court ruled the Department of Commerce lacks legal authority to order reliquidation. This effectively cements the higher penalty rates for these shipments.

September 2023: Commerce assigned high countrywide penalty rates.
2025: CIT Judge Restani ruled Commerce could not terminate reviews.
May 1, 2026: Commerce issued revised countervailing duty cash-deposit rates.
Sept. 23, 2026: CIT sustained the remand results in the China Cornici case.

Market Landscape

The ruling upholds the principle of administrative finality under Section 1516a of the U.S. Code. This decision follows a pattern of court interventions that prevent retroactive changes to customs entries once the liquidation process is complete.

Importers should conduct regular audits of entry classification codes to ensure they match the required duty-subject status. Failure to protest within the 180-day statutory window effectively locks in duty liabilities, regardless of later successful administrative appeals.

The takeaway

The court decision underscores that administrative windows for contesting duties are absolute, leaving no room for late corrections. Operators should prioritize rigorous documentation of manufacturer status to qualify for lower antidumping rates before the liquidation clock begins.