US-China Trade in Flux After Supreme Court Tariff Ruling
A recent US Supreme Court ruling that reportedly limits executive power on tariffs has created significant uncertainty in global trade, handing China what some analysts call the "upper hand" ahead of new negotiations. In response to the ruling, the current administration moved to institute a 15% flat tariff on many Chinese imports. Beijing is now reportedly assessing the decision and monitoring US trade moves, with officials stating that “fighting is harmful.” The decision is expected to increase pressure on companies to diversify supply chains and has raised uncertainty for global trading partners.
- The recent Supreme Court ruling invalidated tariffs imposed under the International Emergency Economic Powers Act (IEEPA), a 1977 law, arguing the president cannot use it to regulate commerce during peacetime without express congressional approval. This decision affects a wide range of tariffs, including the "reciprocal tariffs" and those related to fentanyl trafficking. - While the IEEPA-based tariffs were struck down, a significant portion of tariffs on Chinese goods remains intact. These were enacted under other authorities, such as Section 301 of the Trade Act of 1974, which addresses unfair trade practices, and Section 232 of the Trade Expansion Act of 1962, concerning national security. - In response to the court's decision, the administration invoked Section 122 of the Trade Act of 1974 to impose a temporary 15% tariff on most imports, which is set to last for 150 days. This move is intended to address balance-of-payment issues and maintain tariff pressure while new strategies are developed. - The original "Section 301" investigation in 2018 targeted Chinese policies related to technology transfer, intellectual property, and innovation, leading to tariffs on approximately $370 billion worth of imports from China. These tariffs, which formed the backbone of the trade war, are not affected by the recent Supreme Court ruling. - The "Phase One" trade deal, signed in January 2020, required China to make structural reforms and increase purchases of U.S. goods. However, compliance has been a point of contention, leading to a new Section 301 investigation in October 2025 into China's implementation of the agreement. - Economists estimate that without the invalidated IEEPA tariffs, the average effective U.S. tariff rate will be 9.1%. However, with the new temporary 15% global tariff, the rate is estimated to be 13.7%. - The legal basis for the new temporary tariff, Section 122, allows the president to act to address a "fundamental international payments problem" but is limited in duration unless extended by Congress. The administration is also preparing new, potentially more durable tariffs by launching accelerated Section 301 investigations into a variety of trade practices. - The Supreme Court's decision creates an opportunity for importers who paid the now-illegal IEEPA tariffs to seek billions of dollars in refunds through the U.S. Court of International Trade. However, the process for obtaining these refunds is expected to be litigated.
