May 29 (Reuters) - China's biggest technology companies

have begun the process of switching to homegrown chips as they

contend with a dwindling stockpile of Nvidia ( NVDA ) processors

and tightening United States export controls, the Financial

Times reported on Thursday.

Alibaba ( BABA ), Tencent ( TCTZF ) and Baidu ( BIDU ) are

among those starting to test alternative semiconductors to meet

growing domestic demand for AI, the report said, citing industry

executives.

Reuters could not immediately confirm the report.