LONDON: US trading partners in Asia weighed fresh uncertainties this weekend after President Donald Trump announced a new tariff on imports, hours after the Supreme Court struck down many of the sweeping levies he used to launch a global trade war.

The court’s ruling invalidated a number of tariffs that the Trump administration had imposed on Asian export powerhouses from China and South Korea to Japan and Taiwan, the world’s largest chipmaker and a key player in tech supply chains.

Within hours, Trump said he would impose a new 10 percent duty on US imports from all countries starting on Feb. 24, which he raised to 15 percent on Feb. 21. The levies, under a different law, are set for 150 days, prompting analysts to warn that more measures could follow, threatening further confusion for businesses and investors.

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Before the ruling, Trump’s tariff push had strained Washington’s diplomatic relations across Asia, particularly for export-reliant economies integrated into US-bound supply chains.