特朗普：已签署12封贸易信函，可能周一发出

Core Viewpoint - The latest tariff threats from President Trump are causing significant anxiety in global markets, with new tariffs ranging from 10% to 70% set to be implemented on countries that have not reached trade agreements by July 4 [1][2]. Group 1: Tariff Implementation - The U.S. government plans to send out tariff notifications to approximately 12 countries, with a maximum tariff rate of 70%, which is higher than the previously announced 50% [1]. - The implementation of these tariffs is scheduled to begin on August 1, following a 90-day negotiation window that ends on July 9 [1][2]. Group 2: Trade Negotiation Challenges - The shift in strategy from complex negotiations to unilateral ultimatums reflects the administration's frustration with ongoing trade talks, particularly with major partners like Japan and the EU [2]. - So far, only a few countries have successfully negotiated agreements with the U.S., such as the UK, which maintained a 10% base tariff, and Vietnam, which reduced tariffs on certain goods from 46% to 20% [2]. Group 3: Market Reactions - The aggressive trade strategy is creating significant uncertainty in the global economy, with markets closely monitoring the outcomes of the impending tariff notifications and their potential ripple effects [2].