PALO ALTO, California -- The U.S. has finalized rules to restrict certain American investments in mainland China, Hong Kong and Macao in high-tech sectors including artificial intelligence, semiconductors and quantum technology.
Restrictions potentially put China investors with U.S. residency or citizenship in crossfire

Those who return to China after studying or working overseas have long been viewed as crucial to China's tech and finance sectors, with many of the top executives and talents holding U.S. citizenship or permanent residency. © Reuters
PALO ALTO, California -- The U.S. has finalized rules to restrict certain American investments in mainland China, Hong Kong and Macao in high-tech sectors including artificial intelligence, semiconductors and quantum technology.