Four years. The award standard of extended insurance fund is 4000 yuan per year for 4 years. If the educational system exceeds 4 years, it shall be calculated as 4 years. 20 1 1 Dang Yanbao, chairman of Baofeng Group, and his wife Bian Haiyan initiated the establishment of Ningxia Yanbao Charity Foundation, which is the only foundation in China that provides awards and subsidies to college students in the province, with the largest scale of education funding in the country.