特朗普威胁将钢铝关税上调至50%后，欧盟警告要反制、韩国紧急开会

Group 1 - The EU expresses that Trump's latest tariff measures undermine ongoing efforts to reach an agreement, with a warning of potential countermeasures [1][2] - Trump announced an increase in steel and aluminum import tariffs from 25% to 50%, effective June 4, which could significantly impact foreign companies [2][4] - The EU has prepared a list of countermeasures worth €21 billion against U.S. goods in response to the steel and aluminum tariffs, although implementation has been paused to facilitate negotiations [1][2] Group 2 - Trump's administration previously announced a 20% tariff on most EU goods, later reducing it to 10% to allow for negotiation time [3] - The EU's strict food standards pose challenges for U.S. agricultural products entering the European market, limiting potential concessions in trade negotiations [5] - The U.S. steel industry has been declining, with approximately 25% of the steel used in the U.S. being imported, indicating a reliance on foreign steel [6] Group 3 - Canada and the UK express strong opposition to the proposed tariff increases, with the UK steel industry stating it would be a significant blow [6][7] - South Korea is convening emergency meetings to discuss the impact of the tariff increases on its steel industry, which relies on exports to the U.S. [7] - Japan's steel exports to the U.S. are also affected, with a report indicating that 4% of Japan's total steel exports go to the U.S., highlighting the broader implications for the Asian steel market [7]