The board of directors of Biosino Bio-Technology and Science Incorporation announced that on 26 April 2024, Mr. Li Jifeng ("Mr. Li") has tendered his resignation as a shareholder representative supervisor of the Company (the " Supervisor(s) ") and the chairman of the supervisory committee of the Company (the "Supervisory Committee") due to his other work arrangements. Mr. Li has confirmed that he has no disagreement with the Board and the Supervisory Committee and there are no other matters relating to his resignation as a Supervisor that need to be brought to the attention of the shareholders of the Company.