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Cyber Power Systems (USA) Inc. filed suit before the U.S. Court of International Trade against the United States, likely challenging tariff classifications or §301 duties on imported power supply products. The case was published on April 23, 2026; full merits details are pending review of the opinion.
The case was published April 23, 2026, placing it in the current wave of CIT litigation by importers seeking refunds or reclassification as USTR Section 301 Lists 3 and 4A duties remain in effect following the 2024 Section 301 review. The structural driver is the prolonged exposure of HS Chapter 85 importers to layered Section 301 duties on Chinese-origin electrical equipment, creating strong financial incentive to litigate classification and statutory authority questions.
Importer-side challengers in this space typically lack the organized domestic producer coalition that would generate political counter-pressure, but USTR and DOJ will defend the Section 301 framework vigorously given its centrality to broader China trade policy. Downstream US commercial and industrial users of power supply products have a shared interest in a plaintiff victory but are rarely named parties.
Section 301 duties on HS Chapter 85 products from China remain among the broadest in scope; a successful challenge could affect a large swath of electrical equipment imports. China has raised WTO dispute settlement concerns over the Section 301 tariff program generally, though WTO appellate capacity constraints limit near-term multilateral relief.