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.

China on Thursday accused the United States of "abusing export control measures" and urged Washington to correct its practices after the U.S. issued guidance warning companies not to use Huawei's Ascend AI chips.

New guidance on US export rules could deter Chinese firms with global ambitions from using Huawei processors, analysts say.