Tencent's stock code is 00700, why not six digits? WeChat qq is free to use. What does Tencent rely on for profit?

Why is Tencent's stock code 5 digits instead of 6 digits? Because Tencent is not listed on the mainland, Tencent Holdings 00700 is listed on the Hong Kong Stock Exchange, and it is a Hong Kong stock. At present, most Hong Kong stocks are 5 digits, and A shares are 6 digits!

Tencent's QQ WeChat is free to use, but don't forget, what is the advertising cost of this advertising information pushed to you by QQ and WeChat every day? There are also tencent games and the like (not to mention eating chicken and king pesticides, which will jump in a short while, worth hundreds of millions). There are too many money-making projects, more than one QQ and WeChat!