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Ex-TSMC Worker Indicted for Alleged Trade Secret Theft

Prosecutors said Chen copied 21 TSMC trade-secret documents and planned to recruit Taiwanese chip talent for a China-based venture.

  • On Monday, the Taiwan High Prosecutors Office indicted a former Taiwan Semiconductor Manufacturing Company deputy manager, Chen, for allegedly stealing trade secrets involving national core technologies intended for use in China.
  • Prosecutors allege Chen conspired with Chinese national Ding Xiaohu between 2023 and 2024 to establish CSMAC, a semiconductor materials analysis company in China, under a plan called the "Blue Ocean Project."
  • Investigators discovered Chen made unauthorized copies of 21 classified TSMC documents to demonstrate technical expertise to prospective investors; prosecutors are seeking a seven-year prison term for the defendant.
  • This case marks Taiwan's "first-ever indictment for attempted transfer of national core critical technology trade secrets" to China, though TSMC detected irregularities and recovered all duplicated documents before any transfer occurred.
  • Authorities have tightened laws protecting critical technologies amid concerns over Chinese efforts to recruit Taiwanese semiconductor talent, as officials warn such actions threaten "Taiwan's leading competitive position" in the global chip industry.
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A former employee of the Taiwanese chip manufacturer TSMC has been charged in Taiwan with stealing ‘core technology’ from the chipmaker and attempting to leak it to China. This was announced by the Taiwanese Public Prosecution Service. According to the prosecutors, it is the first indictment of its kind on the island, which is viewed by China as a breakaway province.

·Amsterdam, Netherlands (Kingdom of the)
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Taiwan's prosecutors denounced, on Monday (20), a former TSMC official for allegedly stealing business secrets from the company involving technologies designated by Taiwan as national central technologies, with the intention of using them in China. The former official, who previously served as assistant manager in the world's largest contract chip manufacturer, was accused of violating Taiwan's National Security Act and the Trade Secrets Act, in…

·Rio de Janeiro, Brazil
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cna.com.tw broke the news on Monday, July 20, 2026.
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