Ex-TSMC manager indicted in Taiwan's first China-chip case
TL;DR
- Ding Xiaohu, the alleged PLA-linked co-conspirator, died in Taiwanese custody in April 2026, ending the espionage prosecution against him while Chen's trade secret charges proceed.
- The Blue Ocean Project allocated over NT$10M and recruited active-duty and retired Taiwanese military officers alongside semiconductor engineers, showing multi-vector institutional targeting.
- TSMC's internal audit recovered all 21 stolen documents before any external transfer, meaning the prosecution targets attempted theft rather than completed exfiltration.
The interesting part of this case is not that a chipmaker caught an insider trying to walk secrets out the door. It is that Taiwan is now willing to prosecute one under a national security statute, not just trade-secret law. Taiwanese prosecutors indicted a former TSMC deputy manager, identified only by the surname Chen, and are seeking a seven-year prison sentence under the National Security Act and the Trade Secrets Act, Nikkei Asia reported. Prosecutors described it as the island's first such indictment involving technologies officially designated as national core technologies for intended use in China.
The alleged scheme is small and pointed. Between 2023 and 2024, Chen is said to have conspired with a Hong Kong national to establish CSMAC, a semiconductor materials analysis company in China, and to have copied 21 TSMC documents containing classified and general trade-secret material, according to reporting via Focus Taiwan and Reuters. The Hong Kong co-conspirator was not prosecuted because he had died. TSMC detected the unauthorized copying through an internal investigation and recovered every duplicated document.
Why any of this matters beyond one prosecution: TSMC is the world's largest contract chipmaker and a key supplier to Nvidia and Apple, and Taiwan has spent the last few years expanding what counts as 'national core' technology and what happens legally when someone tries to move it. This case is the first live test of that framework. It also tells you that TSMC's internal monitoring can catch a mid-level insider before documents move offshore, which is a useful signal for the company's customers as much as for its regulators.
The honest caveat is that the reporting is essentially single-sourced from prosecutors and short on the specifics that would matter most: which processes or materials the 21 documents actually cover, whether any copies reached China before recovery, and who was really funding CSMAC. Chen has not been convicted, and the seven-year figure is what prosecutors are asking for, not a settled outcome.
The forward-looking part is who benefits from a precedent like this. Taiwan gets an enforcement template it can point to when Washington asks how shared chip IP is being protected. TSMC gets a demonstrated deterrent. And every other chipmaker facing China-facing recruitment pressure, inside and outside Taiwan, now has to assume both the detection bar and the criminal exposure have moved up.
What others are reporting
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Taipei Times Read →
Names the scheme 'Blue Sea Project,' details Ding's parallel spy network targeting Taiwan's military, and confirms TSMC systems flagged the breach before any document left Taiwan.
It is Taiwan's first prosecution involving an alleged attempt to transfer national core critical technology trade secrets to China.
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The Standard Read →
Hong Kong outlet adds that co-conspirator Ding died before trial concluded, ending espionage charges against him, and details the plan to poach active Taiwanese talent to staff CSMAC.
Taiwan's leading competitive position in the global chip industry would be gradually eroded by the scheme, prosecutors said.
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Tom's Hardware Read →
Tech-hardware outlet frames the case around CSMAC as the intended corporate recipient, surfacing the front-company structure for a chip-specialist audience.
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TechSoda Read →
Most detailed breakdown: NT$10M+ operational budget, Ding's possible Central Military Commission ties, and TSMC's confirmed full recovery of all 21 documents via internal audit.
Taiwan's first criminal prosecution involving an attempted transfer of national core semiconductor technologies to mainland China.
Originally reported by asia.nikkei.com
Read the original article →Original headline: Taiwan Indicts Former TSMC Deputy Manager for Stealing Chip Trade Secrets to Sell to China, First Case Under National Security Act