Hong Kong, 10 Mar 2026—SinoMab BioScience Limited (stock code: 03681, abbreviated as “SINOMAB BIO-B”) has announced that its Board of Directors will convene on 23 Mar 2026. The meeting’s primary agenda is to consider and approve the Group’s audited financial results for the fiscal year ended 31 Dec 2025 and to authorise their publication. Additional corporate matters may also be discussed.

The notice was issued by Dr. Shui On Leung, who currently serves as Executive Director, Chairman, and Chief Executive Officer. As of the announcement date, the Board comprises:

• Executive Director: Dr. Shui On Leung • Non-Executive Directors: Dr. Haigang Chen, Mr. Xun Dong, Ms. Xiaosu Wang, Dr. Jianmin Zhang • Independent Non-Executive Directors: Mr. George William Hunter Cautherley, Mr. Ping Cho Terence Hon, Dr. Chi Ming Lee, Ms. Chi Sau Giselle Lee, Mr. Nan Shen

Investors can expect the company’s FY2025 performance figures following Board approval and subsequent publication.