US Imposes 186.84% Anti-Dumping Tariffs on Vietnamese Vehicle Frames, THACO Directly Affected

In a move that could reshape Vietnam's automotive parts export ambitions to the American market, the United States has imposed preliminary anti-dumping tariffs of up to 186.84% on vehicle frames and related components imported from Vietnam. The decision, announced on June 18, 2026, directly affects companies within THACO, one of Vietnam's largest automotive industrial corporations, along with numerous other Vietnamese manufacturers.



This represents one of the highest anti-dumping tariffs ever applied to Vietnam's automotive supporting industry in the US market, raising significant questions about whether this is merely a standard trade case or a substantial blow to Vietnam's automotive components export ambitions.



Case Summary

AspectDetails
Country Imposing TariffsUnited States
Issuing AuthorityUS Department of Commerce
Announcement DateJune 18, 2026
Anti-Dumping Tariff Rate186.84%
Affected ProductsVehicle frames and related components
Affected Vietnamese CompaniesCompanies within THACO and other manufacturers
Current StatusPreliminary decision

Why Did the US Impose These Tariffs?

According to the US trade investigation process, authorities determined that products imported from Vietnam were being sold in the US at prices below their normal value, thereby harming domestic US industries.



When a case is determined to have dumping characteristics, the US Department of Commerce has the authority to impose provisional duties during the investigation period before issuing a final determination.



The 186.84% tariff rate means that a product with an export value equivalent to 100 million VND could incur an additional tax of approximately 186.84 million VND upon entering the US market.



Cost Impact Analysis

Product ValueAnti-Dumping TariffTotal Cost After Tariff
100 million VND186.84 million VND286.84 million VND
500 million VND934.2 million VND1.434 billion VND
1 billion VND1.868 billion VND2.868 billion VND

With such a significant increase in costs, the competitiveness of Vietnamese products in the US market would be severely impacted if the final decision maintains the current tariff rate.



Impact on THACO

THACO (Truong Hai Auto Corporation) is one of Vietnam's largest automotive industrial groups with its manufacturing ecosystem located in Chu Lai, Quang Nam Province. In recent years, the company has continuously expanded exports of components, parts, and mechanical products to various international markets.



The inclusion of two THACO-affiliated companies in the tariff-imposed list has drawn particular attention from investors, as these enterprises are considered leaders in Vietnam's strategy for developing the automotive supporting industry.



Potential Risks

Impact AreaSeverity Level
Reduced competitiveness in the US marketVery High
Increased import costsVery High
Decreased export ordersHigh
Impact on corporate profitsHigh
Supply chain disruptionModerate to High

More Than Just a THACO Story

This incident reflects the reality that Vietnamese enterprises are facing increasingly stringent trade barriers in major markets. As exports grow rapidly, the risk of anti-dumping, anti-subsidy, or anti-circumvention investigations also increases.



This lesson applies not only to THACO but also to many other export sectors such as steel, wood, energy batteries, electronic components, and industrial supporting products.



What Happens Next

Following the preliminary decision on June 18, 2026, the investigation process continues. Affected companies have the right to provide documentation, evidence, and arguments before US authorities issue a final ruling.



If the final tariff rate is reduced, the impact will be less severe. Conversely, if the 186.84% rate is maintained, it will pose a significant challenge to the export of vehicle frames and automotive components from Vietnam to the US market.



The case highlights the growing complexity of international trade relations and the challenges Vietnamese manufacturers face as they seek to expand globally. As Vietnam continues to develop its industrial base, navigating these trade barriers will become increasingly important for sustainable growth.



Do you believe this near-187% tariff is a legitimate measure to protect US domestic production, or is it becoming a barrier that makes Vietnamese goods uncompetitive in the international marketplace?