Shutai Shen: Bai Xuelian, General Manager of the Clinical Research Center, has resigned for personal reasons.

Shutai Shen announcement: The company's board of directors recently received a written resignation letter from Ms. Bai Xuelian, the general manager of the clinical research center. She has resigned from her position due to personal reasons, with the original term set to end on the date of the conclusion of the sixth board of directors of the company. The resignation will take effect from the date it is delivered to the board of directors, and after resigning, she will no longer hold any position in the company. As of the disclosure date of this announcement, Ms. Bai Xuelian does not hold any shares of the company, either directly or indirectly.