text: On 23 May 2020, the Chinese Football Association announced that eleven professional clubs across China's top three divisions would have their registration cancelled over a failure to pay player wages. As a result, the CFA announced a reclassification of the teams which would contest their professional divisions. According to this reclassification, Sichuan Jiuniu was promoted to China League One for the 2020 season,  which was delayed because of the COVID-19 pandemic. In 2022, Sichuan Jiuniu expressed its interest to relocate to Changsha, Hunan, to the Chinese Football Association, but fell short in their attempt as the request was denied by the Chinese FA by April 2023. The Sichuan Jiuniu board, which includes the CFG, further expressed in a statement that, "if the Chinese FA are unable to fulfill their legal relocation request, then the board do not see a sustainable future in investing in Chinese football, and may pull out of the Chinese professional football league system, putting aside all previous investments and hard work."
  On 18 October 2023, in their fourth consecutive season in China League One, following a 4–0 home win over Wuxi Wugo, Sichuan Jiuniu secured promotion to the Chinese Super League for the first time in the club's history. A week later on 22 October, Sichuan Jiuniu won the China League One title after second-placed Qingdao West Coast drew their match against Shijiazhuang Gongfu.
  On 24 January 2024, the Chinese Football Association confirmed the club's relocation to Shenzhen, Guangdong. The club completed its rebrand to Shenzhen Peng City ahead of their debut Chinese Super League campaign.