China’s central bank is attempting to take control of Ant Group’s vast trove of consumer lending data, marking the latest front in Beijing’s crackdown on Jack Ma’s financial technology group.

Beijing wants to curtail the power of Ant Group and Ma, China’s best-known entrepreneur, who has largely disappeared from public view since publicly criticising state-owned banks and regulators in October. The company was forced to pull its $37bn initial public offering, which was set to be the world’s largest, the following month.

The People’s Bank of China wants Ant to turn over its data, one of the most valuable assets in Ma’s internet empire, to a state-controlled credit scoring company that would be run by former executives of the central bank, according to people close to the negotiations.