Semiconductors and Technology Control

President Donald Trump issued an executive order on January 2, 2026 directing HieFo Corp. to divest U.S. computer chip and wafer fabrication technology it bought from Emcore Corp. in a $2.9 million May 2024 deal, citing credible evidence that HieFo’s current owner is a citizen of the People’s Republic of China and that continued control threatens U.S. security interests. The order requires HieFo to unwind its control of the Alhambra, California–based operations within 180 days, spotlighting a previously low-profile transaction involving aerospace and defense–related chip technology now framed as a national security risk.