The actress is probably best known for her role in X-Men: Days of Future Past as Blink and is set to star in the upcoming female-led thriller 355 along with Jessica Chastain, Penelope Cruz and Lupita Nyong'o, which is set to hit theaters in 2019.
She was publicly linked to a tax evasion investigation in May, and has since gone silent.
The ranking has split fans online, with many jumping to Fan's defence. And with a report in the state-runSecurities Daily which claimed that Fan had been "placed under control and will accept the legal decision". She was accused this year on social media of signing two copies of a film contract - a practice colloquially dubbed a "yin-yang" agreement, wherein the undervalued version is submitted to tax authorities.
Other news outlets have for months speculated on Fan's whereabouts, and rumours circulated that she was living under house arrest, according to The Epoch Times, a U.S. newspaper focusing on China.
It follows news that the star was recently ranked last in the 2017-2018 China Film and Television Star Social Responsibility Report, an official report authored by academics at Beijing Normal University, which judged celebrities on "professional work, charitable actions and personal integrity".
Her disappearance came after Cui Yongyuan, a former TV host with the state-owned China Central Television, suggested that the actress had signed secret contracts with a Chinese entertainment company to avoid paying taxes.
The actress' studio and reps say that the claims against her are slander and that she hired a lawyer to dispute the allegations.
Her last public appearance was at a children's hospital on 1 July but she has not been seen in public since; many fan have also noted that there is no trace of her any more across China.
After the documents posted by Cui went viral, the state tax administration was reportedly investigating alleged use of such dual contracts in the entertainment industry in eastern Jiangsu province. A day after Securities Daily's report, news site iFeng reported that all of the offices at Fan Bingbing's studio had been cleared out.
Given the Chinese government's propensity for secrecy, there probably won't be any solid news until the matter is sorted out behind closed doors, and Fan pays up for her rumored tax transgressions and makes a contrite statement to the public.
Fan is one of five leading global actresses cast in the upcoming Hollywood spy thriller 355, also starring Jessica Chastain and Penelope Cruz.