"The significance is that it shows that China has been able to stay 2-2.5 nodes behind the world's best (chip) companies," Dan Hutcheson, an analyst with TechInsights said

China's ban on iPhone use by government workers was extended to local government entities last month, raising fears that Apple and its suppliers could be hit hard by rising Sino-US tension

Republican chair of influential House panel calls for harsher curbs after the discovery of new chips in Huawei phones "that may violate trade restrictions"

Guterres warned of fragmentation "in world economic and financial systems" amid differing views on technology and security; he also urged solutions for poor nations' debt and climate change

Sources say staff were given instructions to also not use other foreign-branded devices or bring them into the office

Analysts expect more debate in the US on the effectiveness of chip curbs and the possibility of Congress including harsher sanctions in a competition bill it is preparing against China

The development follows sanctions-hit Huawei's success in building an advanced 7-nanometer processor, in collaboration with state-backed SMIC

Reports that Huawei's latest smartphone has 5G capabilities has sparked questions on the effectiveness of US sanctions and whether chip curbs on China should be expanded

In interviews broadcast on Sunday, the US commerce secretary said China's economy did better when it was more transparent and market-oriented

US officials from various agencies say Chinese intruders without proper authorization have been found at multiple US bases and sensitive sites in recent years, according to a new report

Many analysts see a drift toward Japan-style stagnation, but there is also the risk of a crisis sparked by a spillover of debt from the property sector or local government

The 100-million-people country has only 5,000 to 6,000 trained hardware engineers for the chip sector, against expected demand of 20,000 in five years