BEIJING, July 27 -- The China Securities Regulatory Commission (CSRC) said on Monday it has ordered investigations into another two companies for clues on margin lending activities through unofficial channels.

On the basis of the previous probe on Hangzhou-based financial software company Hundsun Technologies, the CSRC has sent inspectors to Shanghai MecrtSoft Tech Co. and Hithink RoyalFlush Information Network Co. to search for further clues, said CSRC spokesman Zhang Xiaojun.

The regulator did not give other details.