Trump announced at the White House that the United States will impose a 25% tariff on imported steel products and impose a 10% tariff on imported aluminum products. Tariff measures will take effect after 15 days. The Trump administration’s move has caused widespread opposition in the United States as well as in the international community. In addition, the European Union, Brazil, South Korea, Japan, France, the United Kingdom, and Australia have all indicated that they will take countermeasures. European Union President Juncker said that the EU will respond firmly to defend the interests of the European Union. Wang Hejun, head of the Trade Relief and Investigation Bureau of the Ministry of Commerce of the People\u0027s Republic of China, pointed out after the US announced the decision that the US measures are to protect trade in the name of national security. He also said that China urges the United States to respect the authority of the multilateral trading system and to withdraw relevant measures as soon as possible.