In its latest revolt against control by Baoneng Group, China Vanke Co has submitted a report to the country’s securities regulators on Tuesday, accusing asset management programmes (AMPs) of its largest shareholder of violating relevant information disclosure rules and suspicions of market manipulation.

In the report, Vanke said that Jushenghua and Foresea Life Insurance, two units of Baoneng Group, have been increasing their stakes in the company through nine high-leverage AMPs since the second half of 2015, which it claims has breached a number of regulations, including provisions of listed companies’ information disclosure, and related laws in reference to asset management business.

The report has been submitted to China’s regulators, including the China Securities Regulatory Commission (CSRC), the Asset Management Association of China, the Shenzhen Stock Exchange, and the Shenzhen bureau of the CSRC, according to Vanke.

The property developer called for the authorities to launch an examination of the legitimacy of the nine AMPs and sanction Baoneng, should violations indeed be found.

This also came after Chinese media reports alleging that seven of Baoneng Group’s nine AMPs have now been in the red, and that one of them, Taixin No.1, could be at risk of closing down in coming days, if Vanke’s stocks fall below 16.31 yuan per share.

Vanke’s A-shares continued to fall on Wednesday. As of 10:20 Beijing time, the stocks lost 1.64% to 16.83 yuan per share, tumbling more than 23% so far this month.