Counterintelligence — 2026-07-21

Taiwan Indicts Former TSMC Employees in First National Core Technology Espionage Case Linked to China

BLUFTaiwan's first national core technology espionage indictment signals escalating legal deterrence against China-linked semiconductor theft, though a conviction matching the recommended seven-year sentence is unlikely within 24 months given the case's statutory novelty and TSMC's pre-transfer file recovery.

Taiwan's High Prosecutors Office Intellectual Property Prosecution Division indicted a former TSMC deputy manager surnamed Chen on Monday for allegedly stealing core semiconductor technologies for transfer to China, and recommended a seven-year prison sentence 12. Prosecutors allege Chen copied 21 files containing core national technologies and trade secrets, removed them from TSMC for study at his residence between May 2023 and February 2024, and worked with Hong Kong resident Ding Xiaohu under a scheme prosecutors called the "Blue Ocean Project" 1. TSMC said its internal investigation detected the alleged breach and recovered the copied documents before any transfer to China occurred, and declined further comment on the indictment 13. The case is linked to a separate investigation into Ding, who prosecutors allege sought to build a semiconductor materials firm in China (identified in reporting as CSMAC) using stolen technology and to recruit Taiwanese military personnel; Ding was indicted in a related case in November and died in February 1. Digitimes and Reuters both describe the case as Taiwan's first indictment under national core technology espionage provisions tied to China, though Digitimes' reporting refers to the indictment covering former TSMC employees plural, while Reuters and Taiwan News describe a single indicted individual, Chen 23.

Analysis
Taiwan's judiciary is unlikely to secure a conviction matching the prosecutors' recommended seven-year term within 24 months, as first-of-kind national core technology cases typically face prolonged appellate review and evidentiary contestation over the "Blue Ocean Project" scheme's intent element. Low confidence reflects the case's novelty under this statute and the absence of comparable precedent to anchor sentencing outcomes. TSMC's pre-transfer recovery of the 21 files weakens the prosecution's damage narrative and may factor into judicial leniency at trial or on appeal. The linkage to Ding Xiaohu's now-closed prosecution, following his death in February, removes a potential corroborating witness for the state's case.

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