Why can't zhongshan securities board?

The reason why zhongshan securities can't get on the board is that the securities company is carrying out system maintenance. According to the relevant public information inquired, all securities apps are not allowed to open the login entrance when the securities company is carrying out system maintenance. Zhongshan securities limited liability company was established in June 1992+0 1, and it is one of the early securities companies in China. The company has 80 securities business departments, which are located in the economically developed eastern coastal areas from northeast to south China, with a wide customer base and a solid economic foundation.