ST Zhizhi announced that the company's board of directors received a written resignation report submitted by Zhang Yanfeng, vice president and board secretary. Zhang Yanfeng applied to resign as the company's vice president and board secretary due to personal reasons. After resigning from the above position, Zhang Yanfeng no longer holds the position of senior management of the company. According to relevant laws and regulations and the “Articles of Association”, Zhang Yanfeng's resignation report took effect on the day it was delivered to the board of directors. Chairman Shi Yujiang will act as board secretary before the company appoints a new board secretary. The company will complete the selection and recruitment of board secretaries as soon as possible in accordance with relevant regulations.