Sun Weibang (孙维邦) is a Chinese historical dissident associated with Democracy Wall and later political imprisonment after 1989.
Public role
P1 source records describe a 12-year sentence imposed after 1989 and release in 1999. Exact legal and release instruments remain archival enrichment targets.
Research status
P1 media baseline completed. This profile uses source-bounded wording and does not infer custody or legal status beyond the controlled evidence.