Concord International Securities Co. Ltd. appointed WANG,WEN-TSU, Concord International Securities CO., LTD. Chairperson; LEE,UEN-BIN, Concord International Securities CO., LTD. Deputy Honorary Chairman and; CHEN,CHIEN-CHUAN, Responsible person of MEC MEDICAL Co., as members of the Company's 1nd Accountability Committee. Effective date of the new member of May 4, 2023.