China’s top anti-corruption authorities have launched a formal investigation into Lei Siwei, the sitting vice-governor of northwestern Gansu Province, for suspected serious violations of Party discipline and laws. The Central Commission for Discipline Inspection (CCDI) and National Commission of Supervision announced the probe on Tuesday, marking another high-profile case in China’s ongoing anti-graft campaign.
Lei, 59, a lifelong Gansu native who began his political career in June 1989, is currently undergoing comprehensive disciplinary review and supervisory investigation. The veteran official has spent his entire career within the province, ascending through various senior positions including leadership roles in state-owned enterprises and provincial departments.
His professional trajectory includes serving as director and general manager of Baiyin Nonferrous Group before transitioning to government service. In 2018, Lei assumed directorship of Gansu’s Ecology and Environment Department, followed by leadership of the Provincial Natural Resources Department in 2020. His political advancement continued with his appointment as Party chief of Jiayuguan City in July 2021, culminating in his promotion to vice-governor in 2023 and elevation to the Standing Committee of the Communist Party of China Gansu Provincial Committee in June 2025.
The investigation represents another demonstration of China’s intensified anti-corruption efforts targeting senior officials, particularly those serving in strategic provincial-level positions. The case continues Beijing’s consistent approach of investigating sitting officials regardless of their administrative rank or tenure.