China has called on the United States to unilaterally withdraw tariffs following a U.S. Supreme Court ruling that invalidated some of former President Donald Trump’s imposed duties. The court, in a six-to-three decision on Friday, ruled that Trump lacked the authority under the 1977 law to impose sudden tariffs on multiple countries. The verdict has had a significant impact on global trade. In response, Trump expressed anger and announced a new 10 percent global import tariff under a different legal authority, later raising it to 15 percent, effective Tuesday for up to 150 days with some exemptions.

China’s Ministry of Commerce said Monday it is conducting a comprehensive assessment of the ruling’s impact and urged Washington to remove the tariffs, warning that trade wars have no winners and protectionism leads nowhere. The Chinese Foreign Ministry added that it is closely monitoring potential U.S. actions such as trade investigations and will safeguard its interests.

The ruling is seen as a major setback for Trump, whose economic policies were often upheld by the judiciary. The decision has also unsettled global trade systems, prompting the European Union and other nations to review the developments.