Why do companies list?
A private company will list on the JSE to raise money for growth.
The advantages of listing on the JSE
If you have a successful business and want to grow it, but borrowing money is not an option, you can list the company on the JSE and sell shares to raise money to expand. You will no longer own 100% of the company, as you will have sold some of it to investors. However, your smaller stake in the company could become more valuable as you use the money raised to grow the business.