WASHINGTON, May 29 (TNSFR) -- The International Trade Commission said it received a complaint from Caterpillar Inc., Irving, Texas, alleging violations of Section 337 of the Tariff Act of 1930 involving imports of heavy machinery and related components and is seeking public comment on issues tied to the case. The complaint, filed on May 26, 2026, alleges unlawful importation and sale of heavy machinery and components in the U.S. The filing names as respondents Doosan Bobcat Inc. of Korea; Doosa  more