China has stated its opposition to U.S. President Donald Trump's threat of imposing a 25% tariff on nations conducting business with Iran. A Chinese embassy spokesperson in Washington called the move "illicit unilateral sanctions and long-arm jurisdiction," asserting that trade wars have no winners and coercion is ineffective. China indicated it would take necessary measures to protect its legitimate rights and interests, as the U.S. threat could impact major economies with ties to Iran, including China, India, and the European Union.