China has blasted a new U.S. rule against use of Ascend computer chips made by Huawei Technologies anywhere in the world, chafing Thursday against the limitations of a temporary truce in the trade war between the two biggest economies. Beijing moved ahead, however, with fulfilling its promise to lift retaliatory measures it imposed after U.S. President Donald Trump escalated his trade war, raising tariffs on Chinese products to as high as 145%. Earlier this week, the U.S. Commerce Department's Bureau of Industry and Security issued guidance saying that Huawei's Ascend semiconductors are subject to U.S. export controls, on the basis that they are thought to employ U.S. technology.