000 from the Shenzhen Stock Exchange, 002 from the small and medium-sized board and 300 from the Growth Enterprise Market. The condition for entering the corresponding plate is that if it is a watch, you can directly enter the code; If it is a transaction, the first three can be traded after opening an account in Shanghai and Shenzhen, and the GEM transaction can only be traded after opening an account in a securities company.

According to Article 11 of the Measures for the Administration of Initial Public Offerings on the Growth Enterprise Market, an issuer applying for an initial public offering shall meet the following conditions: the issuer is a company limited by shares established according to law and has been operating continuously for more than three years. Where a limited liability company is converted into a joint stock limited company according to the original book net asset value, the time for continuous operation can be calculated from the date of establishment of the limited liability company;

It has been making profits continuously in the last two years, and its accumulated net profit in the last two years is not less than10 million yuan; Or make a profit in the last year, and the operating income in the last year is not less than 50 million yuan. Net profit is calculated at the lower before and after deducting non-recurring gains and losses; The net assets at the end of the latest period are not less than 20 million yuan, and there are no uncompensated losses; The total share capital after issuance shall not be less than 30 million yuan.

The stock trading code of Shanghai Stock Exchange starts with 600 or 60 1, for example, Yun Sheng Industry: the stock code is 600767. Air China: The stock code is 60111. The code of B-share trading starts with 900, for example, the code of B-share trading is 90090 1.

The trading code of Shenzhen A shares starts with 000, such as Shunxin Agriculture: the stock code is 000860. The trading code of B shares starts with 200, for example, SZSE Guanzhong B shares, the code is 2000 18.

The subscription code of new shares in Shanghai stock market starts with 730. For example, CITIC Securities: the subscription code is 730030. The subscription code of new shares of Shenzhen Stock Exchange is the same as the stock trading code of Shenzhen Stock Exchange. For example, the market value placing code of CITIC Securities in Shenzhen Stock Exchange is 003030.

The allocation code starts with 700 in Shanghai and 080 in Shenzhen. For example, Yun Sheng Industry's rights issue code is 700767. Shenzhen Grassland Xingfa rights issue code is 080780.

The stock code of small and medium-sized board starts with 002, for example, the stock code of Donghua Hechuang is 002065.

GEM stock code starts with 300, for example, Pathfinder stock code is 300005.