China has at least a 70% dependence on the U.S. and its allies for more than 400 items, at a value of roughly $47 billion annually, ranging from luxury goods to raw materials needed for Chinese industries, according to a new analysis of CSIS. The analysis uses data from the United Nations Comtrade database, which tracks official global trade statistics. China's high-dependency exposure was calculated by bundling together trade activity from the U.S. and more than a dozen allies across a range of categories.