Li Youcai: Male, born in 1977, Chinese nationality, no permanent residence abroad, undergraduate degree, professor and researcher, senior engineer, EMBA of Cheung Kong Graduate School of Business. From 2005 to 2012, he served as a supervisor of Fuzhou Development Zone Nebula Electronic Automation Co., Ltd., from 2012 to 2014, as the chairman and manager of Fuzhou Development Zone Nebula Electronic Automation Co., Ltd., and from July 2014 to the expiration of the second term of the board of directors, he served as a director of the company. Chief and General Manager. He is currently the chairman of the company and concurrently serves as the executive director of the wholly-owned subsidiary Fuzhou Nebula Software Technology Co., Ltd., the executive director and general manager of the wholly-owned subsidiary Wuhan Nebula Integrated Energy Technology Co., Ltd., and the executive director of the wholly-owned subsidiary Fuzhou Xingxing Investment Development Co., Ltd. , executive director of Fujian Nebula Detection Technology Co., Ltd., a holding subsidiary, and chairman of the supervisory board of Fujian Times Nebula Technology Co., Ltd., a joint-stock company. As the founder and core staff of the company, Mr. Li Youcai has presided over and participated in the research and development of many of the company's patents. He is the first inventor of many of the company's invention patents and utility model patents.