SinoMab BioScience Limited’s Board announced that each of Mr. Huiyuan MA and Mr. Jing QIANG has tendered his resignation as a non-executive Director with effect from 14 December 2021 due to personal commitment on other business. The Board further announced that Ms. Jie LIU has been appointed as a non-executive Director with effect from 14 December 2021 for a term of three years, subject to re-election and retirement as required by the articles of association of the Company. Jie LIU is currently a deputy general manager and the chief research and development engineer of Hainan Haiyao Co. Ltd. from July 2005 to September 2018, she served as a staff, a deputy director of chemistry department, the director of chemistry department and the director of antibiotic department of Hainan Institute For Drug Control.