Chinese chipmakers have complained about the U.S. Chips Act, which provides funding of some $39 billion to entice firms like Taiwan Semiconductor Manufacturing Co. and Samsung Electronics Co. to build high-end chipmaking capacity in America. On Thursday, China’s chip industry body took aim at a cornerstone of the Biden administration’s policy.

Beijing has accused US companies of having an "unfair competitive advantage." "Companies have been exporting related mature-process chip products to China at low prices, harming the legitimate interests of the domestic industry,

China is launching an investigation into whether the United States is unfairly subsidizing its chipmakers and dumping lower-end chips, marking one of Beijing's most serious countermeasures against American technology sanctions to date.