The document summarizes the reform phases of state-owned enterprises (SOEs) in China from 1978 to the present. It discusses 4 phases of reform: 1) 1978-1983 which expanded enterprise autonomy; 2) 1983-1987 which introduced profit retention; 3) 1987-1992 which introduced contract responsibility systems; 4) 1992-1997 which established a social market economy and shareholding system. Current reforms aim to restructure large SOEs while privatizing small ones to increase efficiency while maintaining social stability.