Guohai Securities Address: Buildings 27 and 28, Hengxiang Garden, No.8 Aoqili Road. Take the bus and get off at the government square station, and walk about 300-400 meters to Xidi Road. I heard that there seems to be a No.24 bus, but I haven't taken it.
It seems that you have to go to ICBC or other banks to open an account in a securities company. Cary doesn't need any money. It's better to have 10 yuan. It is best to consult the securities company.