Core Viewpoint - First Solar, Inc. has filed a complaint with the U.S. International Trade Commission, alleging that certain TOPCon solar cells and related products imported and sold in the U.S. violate Section 337 of the Tariff Act of 1930 [1] Group 1: Legal Action - First Solar, Inc. claims that specific TOPCon solar cells, modules, panels, and components are in violation of U.S. trade laws [1] - The complaint was submitted on February 24, 2026, under the provisions of Section 337 of the Tariff Act of 1930 [1] Group 2: Defendants - The defendants named in the complaint include various companies from the U.S., Germany, Canada, China, Vietnam, Malaysia, India, and Japan, indicating a broad international scope of the alleged infringement [2] - Notable companies listed as defendants include Canadian Solar Inc., JA Solar Technology Co., JinkoSolar Holding Co., and Trina Solar Co., among others [2]