How to buy Sun Bingxin's class of Datong Securities?

Datong Securities official website. Sun Bingxin's class of Datong Securities can be purchased in official website of Datong Securities. Datong Securities, formerly known as 1988, was established as "Shanxi-Hebei Inner Mongolia Monti Datong Securities Company" with the approval of the head office of the People's Bank of China. It is one of the earliest 32 securities companies established in the history of China securities.