The US Department of Commerce finalised antidumping duty margins ranging from 6.36 per cent to 10.71 per cent for certain Vietnamese exporters of frozen warmwater shrimp, with the applicable rate varying by company, according to final results published in the Federal Register and applicable Nov. 6.
Commerce determined that Vietnamese producers and exporters subject to the review sold certain frozen warmwater shrimp in the US at prices below normal value during the review period from Feb. 1, 2024, through Jan. 31, 2025.
Commerce calculated a final weighted-average dumping margin of 10.71% for the FIMEX Group, including Sao Ta Foods Joint Stock Company, slightly below the preliminary rate of 10.76 per cent.
The final margin for Soc Trang Seafood Joint Stock Company, or STAPIMEX, increased to 6.36 per cent from a preliminary 6.30 per cent. Another 27 Vietnamese exporters eligible for a separate rate received a final margin of 7.59 per cent, compared with 7.56 per cent in the preliminary results.
Commerce also determined that another 131 Vietnamese producers and exporters were part of the Vietnam-wide entity and subject to the existing 25.76 per cent Vietnam-wide rate.
Commerce will issue instructions to US Customs and Border Protection to assess antidumping duties on entries covered by the review. The final results also establish cash-deposit requirements for future entries, with applicable rates varying by exporter.
The changes in cash-deposit requirements vary significantly among the reviewed exporters. STAPIMEX's cash-deposit rate will fall to 6.36 per cent from 25.76 per cent, while FIMEX's rate will increase to 10.71 per cent from 4.28 per cent, according to the Southern Shrimp Alliance. The cash-deposit rate for the other 27 separate-rate exporters will increase to 7.59 per cent from 4.28 per cent.
The 10.71 per cent margin calculated for FIMEX is the highest calculated dumping margin for an independent Vietnamese shrimp exporter since the antidumping duty order was implemented in February 2005, according to the Southern Shrimp Alliance. The rate surpassed the previous high of 9.75 per cent calculated for STAPIMEX during the eighth administrative review.
Vietnamese exports to US down
The Southern Shrimp Alliance estimated that US importers of STAPIMEX shrimp could owe more than $9.2 million in additional antidumping duties on entries made during the review period, while importers of FIMEX shrimp could owe more than $6.3 million. The organisation said the estimates were based on publicly reported shipment values submitted during the administrative review.
The final results come as Vietnamese shrimp shipments to the US have declined despite growth in overall US shrimp imports.
US imports under the broader shrimps and prawns category totalled 71,605.6 metric tons in September, up 12.6 per cent from 63,565.4 mt in September 2025, according to USDA Foreign Agricultural Service Global Agricultural Trade System data. The trade category is broader than the frozen warmwater shrimp covered by Commerce's antidumping order.
Vietnam supplied 5,109.2 mt during September, down 8.1 per cent from 5,561.3 mt a year earlier and accounting for about 7.1 per cent of total US shrimp and prawn imports during the month.
By comparison, India supplied 27,205.7 mt, up 3.2 per cent year over year, while Ecuadorian shipments increased 17.5 per cent to 22,219.7 mt. Indonesian shipments increased 50.1 per cent to 11,151.9 mt.
Vietnam's weaker shipments to the US contrast with growth in the country's broader shrimp sector. According to the S&P Global Energy Global Aquaculture Short-Term Outlook, Vietnamese shrimp production is expected to increase 6.5 per cent in 2026 to 1.01 million mt. Vietnam's June shrimp exports totalled 44,553 mt, up 15.6 per cent year over year, with first-half trade also 15.6 per cent above the year-earlier period. China accounted for most of the export growth, with shipments nearly doubling year over year.
The revised margins could affect the relative cost of Vietnamese shrimp in the US, although the impact will vary by exporter and applicable cash-deposit rate. September trade data showed Vietnamese shipments declining even as overall US shrimp and prawn imports increased.
