Chinese brokerage firm Citic Securities said that it has re-established contact with seven senior executives who had been under suspicion of insider trading and other offenses following China’s mid-2015 stock market meltdown, though the group didn’t include the firm’s former president.

In a regulatory statement late Thursday, Beijing-based Citic Securities said the executives and former directors who had been either assisting "investigations by relevant authorities" or under investigations themselves were back at work or had returned home.