U.S. Sets Export Controls on China’s Top Chip Maker - The Wall Street Journal

computer-chip companies that they must obtain licenses before exporting certain technology to China’s largest manufacturer of semiconductors, a blow to China’s efforts to compete in advanced technology.

The department laid out the requirement in a letter to the computer-chip industry Friday.

The letter, a copy of which was reviewed by The Wall Street Journal, says exports to Semiconductor Manufacturing International Corp.