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 US measures to limit the export of advanced artificial intelligence (AI) chips to China may create an opening for Huawei Technologies to expand in its $7 billion home market as the curbs force Nvidia to retreat, analysts say. While Nvidia has historically been the leading provider of AI chips in China with a market share exceeding 90%, Chinese firms including Huawei have been developing their own versions of Nvidia’s best-selling chips, including the A100 and the H100 graphics processing units (GPU). Huawei's Ascend AI chips are comparable to Nvidia's in terms of raw computing power, analysts and some AI firms such as China's iFlyTek say, but they still lag behind in performance. Jiang Yifan, chief market analyst at brokerage Guotai Junan Securities, said another key limiting factor for Chinese firms was the reliance of most projects on Nvidia's chips and software ecosystem, but that could change with the US restrictions. "...

Beijing's widening curbs on iPhone use by government staff raised concerns among US lawmakers on Thursday and fanned fears that American tech companies heavily exposed to China could take a hit from rising tensions between the countries. Apple closed down 2.9% on Thursday and suffered its worst two-day percentage decline since November -- after news that Beijing has told employees at some central government agencies in recent weeks to stop using their Apple phones at work. Several Wall Street analysts said the curbs show that even a company with a good relationship with the Chinese government and a large presence in the world's second-biggest economy was not immune to rising tensions between the two nations. Sino-US friction has worsened in recent years as Washington tries to restrict China's access to key technologies including cutting-edge chip Technology , and Beijing looks to reduce its reliance on American tech. China's Huawei last week...