Announcement of change of internal audit officer

Announcement of change of financial officer

Announcement of the Consolidated Financial Statements for the third quarter of 2023 were approved by the Board of Directors

Announcement on behalf of Amaran that the institutional director changes its representative

The Company’s Board of Directors resolved to revise 2023 Employee Stock Option Issuance and Subscription Rules

Announcement of the Consolidated Financial Statements for the second quarter of 2023 were approved by the Board of Directors

OBI licensed “Nectin-4 Human Antibody” rights from Ablexis, LLC

The Company’s Board of Directors resolved to revise 2023 Employee Stock Option Issuance and Subscription Rules

The Company’s Board of Directors nominated Yun Yen to serve as the Chairman of the Board

Announcement that the institutional director of OBI, Sheng Cheng Investment Co., Ltd., changes its representative