China said it is conducting a “full assessment” of the U.S. Supreme Court’s decision to strike down large portions of President Donald Trump’s tariff regime, urging Washington to scrap what it called “unilateral tariff measures” and warning that confrontation between the world’s two largest economies is damaging for both sides.
The ruling by the Supreme Court of the United States invalidated many of the duties imposed under emergency powers legislation, including tariffs targeting China and other Asian export powerhouses. Within hours, Trump announced a new across-the-board tariff initially 10%, later raised to 15% under a separate statute known as Section 122, a rarely used trade provision that has never before been invoked by a U.S. president.
In a statement, China’s Commerce Ministry said U.S. tariffs violate international trade norms and domestic law, adding that while cooperation between Beijing and Washington benefits both economies, “fighting is harmful.” The ministry pledged to safeguard China’s interests as legal and policy uncertainties in Washington continue to unfold.
Section 122 and a New Legal Test
Trump’s reliance on Section 122 introduces a fresh layer of unpredictability. The statute permits tariffs of up to 15% for 150 days but requires congressional approval for extensions, potentially exposing the administration to further political and legal scrutiny. Analysts note that even if the overall tariff burden remains similar, the mechanism and scope of enforcement could shift, altering sectoral impacts and supply-chain strategies.
Chinese state media commentary reflected skepticism about the durability and rationale of the new levies. Gao Lingyun of the Chinese Academy of Social Sciences described recent U.S. tariff decisions as “highly arbitrary,” arguing that trade policy should rest on economic assessment rather than political calculation.
Diplomatic Stakes Ahead of Trump–Xi Meeting
The tariff turbulence comes just weeks before a highly anticipated meeting between Trump and Chinese President Xi Jinping during Trump’s planned visit to China in late March and early April. Trade policy is expected to dominate the agenda, with both sides weighing the economic costs of escalation against the political optics of compromise.
Beijing’s measured tone suggests it is calibrating its response ahead of the summit. While reiterating opposition to unilateral measures, officials have stopped short of announcing retaliatory action, leaving room for negotiation.
Global Ripple Effects
The uncertainty is reverberating beyond the U.S.–China corridor. South Korea signaled continued consultations with Washington to preserve a “balance of interests,” as industries from automobiles to semiconductors brace for potential disruptions. India reportedly delayed a planned trade delegation to Washington amid confusion over U.S. tariff levels, even as discussions of an interim deal continue.
In Europe, Christine Lagarde of the European Central Bank warned that renewed legal and policy volatility risks unsettling businesses that crave predictability. Companies, she noted, prefer clear rules to protracted court battles and shifting executive actions.
A Fragile Trade Equilibrium
For now, the Supreme Court’s intervention has not ended U.S. tariff activism; it has merely reshaped the battlefield. The immediate effect may be a modest recalibration of effective tariff rates. The broader consequence, however, is renewed uncertainty over the durability and direction of U.S. trade policy.
As Washington explores alternative legal pathways and Beijing weighs its response, the message from China is cautious but pointed: economic rivalry may be inevitable, but sustained conflict carries costs neither side can easily absorb.
With information from Reuters.

