2. Equity investment fund: Private equity ([1] referred to as "PE") is usually called private equity investment in China. From the perspective of investment methods, according to the definition of relevant foreign research institutions, it refers to the equity investment in private enterprises, that is, unlisted enterprises. In the process of transaction implementation, the future exit mechanism is considered, that is, through listing, mergers and acquisitions or management buyback. , profit from the sale of shares.