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 has pushed back against a US decision aimed at curbing Chinese-made artificial intelligence chips, a first sign of discord between the world’s two largest economies since they agreed to a trade truce last weekend.

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.