President Donald Trump has blocked a Chinese-linked company’s acquisition of U.S. semiconductor manufacturing assets, citing national security and supply chain concerns. The decision underscores growing geopolitical pressure around enterprise technology infrastructure and cross-border chip investments.
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TL; DR
- President Trump ordered HieFo Corp. to unwind its $3 million purchase of Emcore’s semiconductor division, citing “credible evidence” of Chinese control.
- The CFIUS review found risks to U.S. technology and manufacturing security.
- The order gives HieFo 180 days to divest all assets acquired from Emcore.
- Experts say it marks a new phase of national oversight over enterprise tech deals.
A Presidential Order That Targets Enterprise Supply Chains
In an executive order issued on January 2, 2026, President Trump blocked HieFo Corp. from retaining chip fabrication assets purchased from Emcore Corp., a U.S. aerospace and semiconductor supplier.
Trump stated in the order that there was “credible evidence” suggesting the deal “might take action that threatens to impair the national security of the United States.”
“The transaction is hereby prohibited,” the executive order reads. “All interests, rights, and assets must be divested within 180 days.”
The blocked deal highlights how semiconductor and photonics technologies—long viewed as foundational to enterprise computing and defense systems—have become flashpoints in U.S.–China tech competition.
CFIUS Identifies ‘Unmitigable’ National Security Risks
The decision followed a detailed investigation by the Committee on Foreign Investment in the United States (CFIUS). The interagency panel determined that Chinese control over U.S. enterprise chip fabrication posed unacceptable national security risks.
A senior U.S. Treasury official told Reuters that “CFIUS identified national security risks that could not be mitigated by other means.”
The blocked sale demonstrates that even small-scale technology acquisitions are now subject to intense scrutiny when they involve critical enterprise or defense-related sectors.
Inside The Deal: A Deep Tech Acquisition With Global Reach
The $2.9 million transaction involved Emcore’s indium-phosphide wafer fabrication and photonics units, key to optical networking and aerospace-grade communications.
HieFo was founded by Genzao Zhang, formerly Emcore’s engineering vice president, and Harry Moore, a former sales director. The U.S. order identifies HieFo as “controlled by a Chinese citizen,” raising concerns about foreign access to advanced enterprise semiconductor processes.
Neither company has commented publicly since the order was signed.
White House Cites Broader Enterprise Tech Safeguards
A spokesperson for the National Security Council said the order reflects America’s need to “protect critical technologies and manufacturing capabilities from foreign adversaries.”
Trump’s directive is part of a broader policy to limit Chinese access to technologies essential to enterprise cloud systems, telecommunications, and AI infrastructure.
Bloomberg reports that the administration views chip manufacturing as “core to both national security and enterprise digital sovereignty.”
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Analysts Warn of Ripple Effects Across Enterprise Tech
Industry experts say the move will ripple across the enterprise hardware and semiconductor landscape, adding new uncertainty for cross-border mergers.
Daniel Kliman, Senior Fellow at the Center for a New American Security (CNAS), told CNBC: “This shows the U.S. government will treat enterprise technology assets — not just consumer tech — as strategic infrastructure. Even modest acquisitions are now viewed through a national security lens.”
Market watchers expect more U.S. tech firms to re-evaluate foreign partnerships, particularly in photonics, sensors, and chip fabrication, which are critical to enterprise cloud operations.
A Broader Pattern Of ‘Tech Sovereignty’
The Trump administration’s decision builds on a trend of tech protectionism. Recent measures include restrictions on chip exports, AI model licensing, and data-center infrastructure built with foreign capital.
Emily Benson, trade and technology analyst at the Center for Strategic and International Studies (CSIS), noted: “We’re witnessing a realignment where enterprise tech is no longer just about innovation—it’s about sovereignty. Governments now view data infrastructure, chips, and AI hardware as national assets.”
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