<h1>China Threatens Retaliation Over US Tariffs; Criticizes Violation of WTO Rules Amid Fentanyl Production Dispute</h1> China has reiterated its threat to retaliate against US tariffs imposed by President Trump, who accuses China of insufficient action against fentanyl production. The Foreign Ministry criticized the US for violating WTO rules and urged the US to correct its actions to maintain positive counter-narcotics cooperation. China denies allowing fentanyl production and insists the US address its own issues. The trade dispute is exacerbated by the US's significant trade deficit with China, which could impact China's export market. The situation also affects China's economic ambitions and President Xi Jinping's goals in the Indo-Pacific region.