US blocks exports to Chinese chipmaker as tensions simmer

The Trump administration has slapped restrictions on exports to a Chinese government-backed chipmaker it says threatens U.S. national security, adding pressure to an already fraught relationship between the world’s two largest economies.


US delays steel, aluminum tariffs until June

President Trump on Monday issued two proclamations, providing Canada, Mexico and the European Union with an additional 30-day exemption to the proposed steel and aluminum tariffs.