New US measures that restrict exports to Huawei could cost Silicon Valley billions in lost revenue. The world's biggest telecommunications equipment supplier and No. 2 smartphone seller relies on dozens of American tech companies for key components.
China's Huawei bought $70 billion worth of components and parts last year from 13,000 suppliers. Of that, about $11 billion was spent on products from dozens of US businesses, including computer chips from Qualcomm (QCOM) and Broadcom(AVGO), as well as Microsoft (MSFT) software and Google's (GOOGL) Android. That revenue is now threatened by the Trump administration's decision to placeHuawei on a list of foreign firms barred from receiving components from US exporters without a license.