Growth enterprise market, also known as the second board market, is a kind of securities market different from the main board market, which provides financing channels and growth space for entrepreneurial enterprises that cannot be listed on the main board market for the time being. Growth enterprise market is an important supplement to the main board market and occupies an important position in the capital market. The stock code of listed companies in China Growth Enterprise Market starts with "300". Compared with the main board market, the listing requirements of GEM are often more relaxed, mainly reflected in the requirements on the establishment time, capital scale, medium and long-term performance and so on. Growth enterprise market is characterized by low entry threshold and strict operation, which helps potential small and medium-sized enterprises to obtain financing opportunities.