In a move raising national security concerns, U.S. President Donald Trump has blocked the $3 million acquisition of Emcore’s New Jersey-based assets by HieFo Corp, a U.S. photonics firm with links to China. The decision highlights ongoing tensions between American tech security interests and Chinese influence.
Trump Blocks HieFo-Emcore Deal Over China Security Risk
On January 2nd, Trump issued an order stopping HieFo Corp’s purchase of Emcore’s chip and indium-phosphide wafer fabrication business. The White House order cited concerns that HieFo is “controlled by a citizen of the People’s Republic of China” and that the transaction could potentially harm U.S. national security.
The order read: “The Transaction is hereby prohibited,” and gave HieFo 180 days to fully divest all interests in the Emcore assets, no matter where they are located.
What Triggered the National Security Alarm
While the order didn’t detail the exact risks, it followed a review by the Committee on Foreign Investment in the United States (CFIUS), which flagged the deal as a potential national security threat. The U.S. Treasury Department confirmed CFIUS’s concerns but didn’t publicly outline what the specific risks were.
Such concerns often arise when sensitive technology—especially in aerospace, defense, or semiconductor sectors—could be transferred to entities with Chinese ties. Even though HieFo is U.S.-based, its leadership raised red flags. The company was co-founded by:
- Genzao Zhang – A former Emcore VP of engineering
- Harry Moore – A former senior sales director at Emcore, according to his LinkedIn profile
This close link between the buyer and Emcore’s former staff, combined with Chinese ownership concerns, likely deepened scrutiny.
Emcore’s Business and the Deal Value
Emcore, once a publicly traded company, was taken private before the deal. It sold the chip and wafer business to HieFo for approximately $2.92 million. The deal involved key photonics and fabrication technologies often considered sensitive due to their potential use in defense applications.
Neither HieFo nor Emcore responded publicly or updated their websites as of Friday night, and further details about the sale or their reaction remain unknown.
U.S.-China Tech Tensions at the Core
This move is part of a larger trend where U.S. administrations—regardless of political party—are taking stronger actions to block deals that may give Chinese-linked companies access to American technology. Semiconductors, aerospace, and defense-related tech are especially sensitive in this regard.
Previous blocks of Chinese-linked acquisitions have involved similar concerns, as the U.S. government seeks to protect its innovation and prevent potential military or strategic technology transfers to rival powers.
The blocked HieFo-Emcore deal reflects growing caution in Washington regarding foreign access to sensitive U.S. tech assets, especially when Chinese ownership is involved. As U.S.-China relations remain tense, particularly in tech and defense sectors, more such actions can be expected. Protecting national security will likely continue to outweigh business interests when the stakes involve key industries like photonics, aerospace, and semiconductors.
FAQ
1. Why did Trump block the HieFo-Emcore deal?
Trump blocked the deal due to national security concerns, citing HieFo’s links to a Chinese citizen and the sensitive nature of Emcore’s technology.
2. What part of Emcore’s business was sold to HieFo?
HieFo was acquiring Emcore’s chip business and indium-phosphide wafer-fabrication operations for nearly $3 million.
3. What role did CFIUS play in the decision?
CFIUS investigated the deal and found it posed national security risks, prompting the White House to step in and block the acquisition.
4. Who founded HieFo Corp?
HieFo was co-founded by Genzao Zhang, a former Emcore VP of engineering, and Harry Moore, a former sales director at Emcore.
5. Has HieFo responded to the block?
As of January 2nd, neither HieFo nor Emcore had made any public statements or updated their websites regarding the blocked transaction.















