China Announces New Export Restrictions Ahead of Yellen Visit
China has restricted exports of high-tech metals gallium and germanium, which are critical to making chips, in response to the U.S. blocking them from access to advanced chips.
Shares of Nvidia, already one of the world's most valuable companies, skyrocketed Thursday after the chipmaker forecast a huge jump in revenue, signaling how vastly the broadening use of artificial intelligence could reshape the tech sector.
