Why can't Gong Kun Science and Technology buy it?

Open permission is required.

Gong Kun Science and Technology needs to have the stock trading qualification of the North Exchange first, that is, to open the trading authority. There are two conditions for opening the stock trading authority of the North Exchange:

1, with more than two years of securities investment experience;

2. The average daily assets of the account shall not be less than 500,000 within 20 trading days before the authorization for opening.