On June 23, 2020, Biqi Shao and Hao Yang resigned as members of the Board of Directors of Yunhong International. Their resignations were for personal reasons and not due to any disagreement with the Company. On June 23, 2020, the Board appointed Wan Zhang and Baibing Li to fill the vacancies on the Board created by the resignations, effective immediately. Wan Zhang has been serving as a Senior Manager at Taikang Bybo Dental Group since March 2020, leading its strategic planning and operations supervision. Prior to that, Ms. Zhang served as a Senior Manager at the Public Affairs Department of PKU Healthcare Group. From May 2014 to May 2018, Ms. Zhang was a Manager and Board Secretary at Capital Healthcare Group. Baibing Li served as the Brand and Operation Director and Overseas Marketing Director of Huachuan (Shanghai) Trading Co. Ltd.