The recent tariff policy imposed by the United States has triggered global trade shocks. Starting from May 2025, the U.S. will impose a 25% tariff on imported cars and parts, leading to risks of export shrinkage and supply chain disruptions for the South Korean automotive industry, prompting companies like Hyundai and Kia to accelerate local production in the U.S. In response, China has implemented countermeasures, imposing a 15% tariff on U.S. coal and liquefied natural gas, and increasing agricultural product import tariffs to 27%. Countries such as the European Union and Mexico are also facing tariff pressures on steel, aluminum, and agricultural products, while ports in Europe, like Hamburg, are experiencing cargo delays due to intensified logistics congestion. Data shows that the U.S. inflation rate has already shown an upward trend due to tariff transmission, with the core CPI rising by the largest month-on-month increase in four months in May. Economists warn that the costs of tariffs will ultimately be passed on to American consumers, with an expected increase of $4,400 in annual household spending. This unilateral policy not only impacts global supply chains but also plunges the U.S. into a dual dilemma of expanding trade deficits and runaway inflation.