U.S. Secretary of State Antony Blinken visits China from Wednesday to Friday amid rising tensions between Chinese and U.S. Where are China-U.S. relations headed? Sean Stein, the chairman of the Board of Governors of the American Chamber of Commerce in China, told CGTN's Tian Wei that China and the U.S. are deeply intertwined with global supply chains, especially in R&D. He also pointed out that the American business community needs to come to China themselves to better understand the opportunities and challenges.