#美国加征关税 The increase in tariffs by the United States is a series of trade protectionist measures taken in recent years, which have had a profound impact on the global economy and trade order. The following is a relevant introduction:

Types of Tariffs

- Section 201 Tariff: Under Section 201 of the Trade Act of 1974, the President is allowed to use tariffs or import restrictions to protect domestic industries for up to 4 to 8 years, applicable to all imported products.

- Section 301 Tariff: The United States began imposing tariffs on China in 2018, citing unfair trade practices related to technology transfer, intellectual property, and innovation. During the Trump administration, the tax rate ranged from 7.5% to 25%, while the Biden administration raised the tax rate on individual products to 100%.

- Section 232 Tariff: The United States, under Section 232 of the Trade Expansion Act of 1962, imposed tariffs on certain imported products citing national security reasons. Starting from March 2018, tariffs of 25% and 10% were imposed on steel and aluminum products, respectively. In January 2020, the scope of taxation was expanded, and in February 2025, the 25% tariff on steel imports was reinstated, with the aluminum import tariff raised to 25%.