FILE - U.S. Treasury Secretary Janet Yellen delivers a speech during the AmCham China Fireside Chat at the Baiyun International Conference Center (BICC) in southern China's Guangdong province, April 5, 2024. Simmering tensions between Beijing and Washington remain the top worry for U.S. companies operating in China, according to a report by the American Chamber of Commerce in China released Tuesday, April 23, 2024. (AP Photo/Andy Wong, Pool, File)