The Shanghai Composite Index rose 0.2% to 4,084 on Wednesday, while the Shenzhen Component Index gained 0.3% to 14,880, trimming losses from the previous session despite renewed US–China tensions ahead of a planned summit next month between Presidents Donald Trump and Xi Jinping. Washington stepped up monitoring of China’s ties with Iran, imposing sanctions on a major refiner and warning Chinese banks of possible secondary sanctions if they continue facilitating Iranian-linked activity. Tensions also rose after Meta Platforms Inc. was prevented from acquiring AI startup Manus, highlighting Beijing’s focus on controlling key technologies. New rules targeting supply chains and export compliance added further pressure. Notable performers included Zhongji Innolight (1.4%), BYD (2.4%), and Midea Group (1.1%). In contrast, Foxconn fell 3.6%, even as it reported triple-digit growth in AI-driven revenue and profits, fueled by strong cloud and server demand.