The board of directors of Shandong Weigao Group Medical Polymer Company Limited announced the following changes to the Board: Mr. Long Jing ("Mr. Long") has resigned as chief executive officer of the Company with effect from 30 March 2021. Mr. Cong Rinan ("Mr. Cong") has been appointed as a chief executive officer of the Company with effect from 30 March 2021. Mr. Cong, aged 40, joined the Company in August 2003. During August 2003 to December 2013, he served as supervisor, deputy manager and manager of the syringe production workshop. During the period from January 2014 to December 2014, Mr. Cong served as the executive assistant to the chief executive officer of the Company. From January 2015 to December 2018, he served as the deputy general manager of the clinical care business unit of the Company; from January 2019 until now, he has been the general manager of the clinical care business unit and deputy general manager of the Company.