Trump blocks U.S. chip deal over security, China-linked ownership

WASHINGTON, D.C.: U.S. President Donald Trump has moved to stop a small but sensitive semiconductor-related acquisition, ordering a U.S. photonics firm to unwind a deal involving aerospace and defense assets after determining it posed national security risks tied to China.

In an order released by the White House, Trump blocked HieFo Corp's US$3 million acquisition of assets fr