美国突然宣布，生效！美进口商措手不及

Core Viewpoint - The U.S. Department of Commerce has officially announced an expansion of steel and aluminum tariffs, adding 407 product categories with a tax rate of 50%, which may exacerbate domestic supply chain pressures and increase consumer prices [1][3][13]. Group 1: Tariff Expansion Details - The expanded tariff list includes unexpected products such as baby strollers and deodorants, indicating a broadening scope of affected items [3]. - The new tariff policy took effect suddenly, catching many U.S. importers off guard, as they were notified just before the implementation date [7]. - Many U.S. importers face a dilemma with goods already in transit; accepting them incurs high tariffs, while refusing delivery leads to losses [9]. Group 2: Economic Implications - The expansion of tariffs is expected to impact at least $320 billion in imports, significantly higher than previous estimates of $190 billion, potentially leading to increased production costs and inflationary pressures [15]. - The U.S. domestic manufacturing sector may struggle to meet demand due to the tariffs, particularly in industries like power transformers, which could slow down advancements in sectors such as artificial intelligence [17]. - Analysts warn that not only steel and aluminum but also other industries may experience fluctuating tariff policies in the future, as indicated by recent statements from former President Trump [19][21].