Tat Cheng Tat-hung (鄭達鴻) is a former Eastern District Councillor and former Civic Party member.
Arrest and charge
Cheng was arrested on January 6, 2021 for participation in the July 2020 unofficial democratic primary and was formally charged on February 28, 2021 with conspiracy to commit subversion.
Trial and sentence
Cheng contested the charge and testified during the Hong Kong 47 trial. He was convicted and on November 19, 2024 was sentenced to 6 years 6 months.
Appeal and current status
Cheng remained part of the appellate group whose convictions and sentences were upheld in February 2026, and later received a certificate enabling an application for final appeal on points of law. He remains classified as currently imprisoned; no release date is inferred from sentence arithmetic.
Media & archive
Hong Kong Watch profile · Reuters appeal report · FCM sentencing archive · Hong Kong hub
Last status review: September 13, 2026.
Hong Kong 47 — current status update
23 February 2026: Hong Kong’s Court of Appeal rejected the relevant appeal in the Hong Kong 47 case. For Cheng Tat-hung (Tat Cheng), the verified appeal disposition is: conviction and sentence appeal rejected. This archive does not infer a release date from sentence length; custody and release status are updated only from dated evidence.
Media and source baseline
- Reuters — 23 February 2026 appeal judgment report.
- Reuters — 19 November 2024 Hong Kong 47 sentencing report.
- Amnesty International — 23 February 2026 response and case background.
Hong Kong Political Prisoners & the Erosion of Freedom — timeline and current-status hub