Sunlands Technology Group announced the appointment of Ms. Jing Gao to the Company's Board of Directors, effective on March 25, 2021. For personal reasons, Mr. Xiaochuan Wang has tendered his resignation from the position of an independent director and a member of the audit committee, and Mr. Zheng Du and Mr. Gaoneng Ji have tendered their resignation as a member of the Board, all effective on March 24, 2021. Ms. Gao has worked in Sunlands for 16 years, and held management responsibilities in various departments of the Company with the most recent role as the vice president. Ms. Gao has deep and keen insights into the Chinese adult continuing education market and extensive experiences in team management.