关税突发！特朗普又改口，将全球关税税率提高至15%，数百家公司要求退还已缴关税

Group 1 - The U.S. government has increased the global import tariff rate from 10% to 15%, effective immediately, following a Supreme Court ruling that deemed previous tariff measures illegal [1][4] - The new tariff, based on the Trade Act of 1974, can only last for 150 days unless Congress approves an extension [2][4] - Hundreds of companies, including major retailers like Costco, have filed lawsuits seeking refunds for tariffs paid under the previously ruled illegal measures, which have accumulated to approximately $130 billion [4][5] Group 2 - The economic burden of the tariffs has primarily fallen on U.S. businesses and consumers, with nearly 90% of the costs borne by them, complicating the refund process for ordinary consumers [5][6] - The legal disputes surrounding the tariffs are expected to be extensive and complex, with potential litigation lasting up to five years regarding the government's obligation to refund tariff payments [6] - German Chancellor Merz plans to discuss U.S. tariff policies with President Trump, emphasizing the need for a coordinated EU stance and expressing concerns about the negative impacts of tariffs on both the U.S. and German economies [8]