The Office of the United States Trade Representative (USTR) announced on 11 March 2026 the initiation of investigations under Section 301 of the Trade Act of 1974 into the acts, policies, and practices of multiple trading partners relating to structural excess capacity and production in manufacturing sectors. The investigation seeks to determine whether these practices are unreasonable or discriminatory and whether they burden or restrict U.S. commerce.
The probe covers 16 economies, including China, European Union, Japan, India, Mexico, Singapore, Malaysia, Vietnam, Thailand, Indonesia, Bangladesh, Taiwan, South Korea, Norway, Switzerland, and Cambodia. According to USTR, these economies may have developed manufacturing capacity that exceeds domestic and global demand, leading to persistent trade surpluses, underutilized industrial capacity, and market distortions affecting U.S. manufacturing competitiveness.
Section 301 provides the U.S. government with authority to investigate foreign practices that are considered unfair and, where appropriate, to impose trade remedies such as tariffs or other restrictions. The current investigations will examine whether government policies or structural factors in the identified economies contribute to sustained overproduction that displaces U.S. manufacturing or discourages domestic investment.
As part of the investigation process, USTR has requested consultations with the governments concerned and will solicit public input from industry stakeholders. A formal comment docket will open on 17 March 2026, with written submissions and requests to testify due by 15 April 2026. Public hearings are scheduled to begin on 5 May 2026 before the interagency Section 301 Committee.
For multinational manufacturers and supply chain operators, the investigation signals a potential new phase of U.S. trade enforcement. If USTR determines that actionable practices exist, the process could ultimately result in tariffs or other trade measures targeting sectors associated with excess production capacity, with implications for global manufacturing supply chains and cross-border trade flows.
Kindly refer to the following press release from the USTR office: