Lake Oswego – October 05, 2026 -- The Greenbrier Companies (NYSE: GBX) has rejected antidumping and countervailing duty petitions filed by UTLX Manufacturing LLC, a Berkshire Hathaway subsidiary, over railway tank cars and parts, vowing to defend its record before the U.S. Department of Commerce and the U.S. International Trade Commission.

Greenbrier disputes claims it abandoned U.S. tank car production

Greenbrier operates a purpose-built tank car manufacturing facility in Marmaduke, Arkansas, where American employees currently build tank cars. The company noted that UTLX's own petition identifies Greenbrier as a U.S. producer and acknowledges its domestic tank car output in 2025.

Company cites $500 million invested in Arkansas since 2019

Greenbrier employs more than 2,000 skilled workers across railcar manufacturing, component assembly, repair and maintenance at over 20 facilities in 11 states. Investments since 2019 totaling more than $500 million have gone into its Arkansas operations, including Marmaduke and Paragould, supporting welders, machinists, electricians and engineers.

Greenbrier denies pricing and subsidy allegations

The company said its tank cars meet U.S. Department of Transportation and Association of American Railroads standards at every manufacturing site, including its AAR-certified Arkansas plant. Greenbrier stated it purchases tons of steel annually from U.S. foundries as the primary input for the tank cars UTLX alleges are dumped and subsidized.

Greenbrier said trade remedies should rest on a complete factual record rather than a competitor's unsupported claims, and pledged full cooperation with Commerce and the Commission while advocating for its employees, customers, shareholders and suppliers.