Type of personnel changed (please enter:
spokesperson, acting spokesperson, important
personnel (CEO, COO, CMO, CSO, etc.), financial
officer, accounting officer, corporate governance
officer, chief information security officer,research
and development officer, internal audit officer, or
designated and non-designated representatives):spokesperson
Date of occurrence of the change:2026/04/30
Name, title, and resume of the previous position holder:
Heidi Wang, Chief Executive Officer (General Manager), OBI Pharma, Inc.
Name, title, and resume of the new position holder:
Yeong-Fang Chiang, Chief Executive Officer, RT-MART
Type of change (please enter: ”resignation”,
”position adjustment”, ”dismissal”, ”retirement”,
”death” or ”new replacement”):new replacement
Reason for the change: new replacement
Effective date:2026/04/30
Any other matters that need to be specified:
The Company’s Board of Directors resolved today to appoint
Dr. Yeong-Fang Chiang as the spokesperson.

Announcement of the Company’s new appointment of spokesperson