The reason why stocks starting with 8 cannot be purchased is because the investor has not opened the purchase authority and has no right to purchase. Stocks starting with 8 belong to the Northern Exchange. If investors want to trade Northern Exchange stocks, they need to open the trading authority of the Northern Exchange. Otherwise, they cannot invest in the stock.

What are the conditions required for Beijing Stock Exchange to open trading authority?

1. Investors should have more than 2 years of experience in securities investment, such as stocks, futures, etc.

2. Within the first 20 trading days, the average daily assets of investors reached 500,000 yuan.