Firms such as Huawei are cultivating local suppliersListen to this story. Enjoy more audio and podcasts on iOS or Android.Your browser does not support the <audio> element.From consumer gadgets to cars, China has shown a knack for producing cutting-edge technology. Yet the semiconductors that power the digital economy have proved trickier to master. That has been the source of much anxiety among its political and business elites in recent years. America’s decision in 2022 to halt exports to the ...