【Diamond BioFund】Announcement of changes in shareholding and fair value of all investment targets, along with the company's net asset value per share, cash and cash equivalents balance

1. Date of occurrence of the event: 2026/05/08 2. Company name: Diamond Biotech Investment Co., Ltd. 3. Relationship with the company (please enter 'our company' or 'subsidiary'): Our company 4. Mutual shareholding ratio: Not applicable 5. Reason for occurrence: In accordance with the letter Ref. No. 1121802934 issued by the Taiwan Stock Exchange Corporation on June 29, 2023, the company is required to announce monthly changes in shareholding and fair value of all investment targets, as well as the company's net asset value per share, cash, and cash equivalents balance. 6. Countermeasures: (1) Changes in shareholding and fair value of the company's investment targets for April 2026 are as follows:

(Unit: shares; thousands of NTD) Company Name April 2026 Shareholding March 2026 Shareholding Change in Shareholding Change in Fair Value -------------------- ----------------------- ----------------------- ---------------------- -------------------- GlycoNex, Inc. 30,869,000 30,869,000 - 776,047 StemCyte International 26,637,150 23,192,150 3,445,000 (69,411) Ltd. Theia Medical Technology 9,042,648 9,042,648 - (112) Co. Ltd. InnoPharmax Inc. 6,696,209 6,696,209 - 38,704 EyeYon Medical Ltd. 59,018 59,018 - (285) Ditian Technology Agri. 7,900,000 7,900,000 - (5,609) Biotech Co., Ltd. Kendall Capital Partners I, N/A N/A N/A (610) L.P Bilayer Therapeutics, Inc. 915,540 915,540 - 27 Uinique Technology Co. 5,331,428 5,331,428 - 0 Rejuvenate Bio Inc. N/A N/A N/A 0 Syncell Inc. 10,367,059 10,367,059 - (2,281) Diamond Fund No. 1 200,000,000 200,000,000 - (97,270) Investment Co., Ltd. Diamond Advanced 200,000,000 200,000,000 - (7,711) Investment Co., Ltd. ---------------------------------------------------------------------------------------------------------------------- Total 631,489 ===========

(2) The company's net asset value per share and cash and cash equivalents balance are as follows:

Date Net Asset Value per Share (NTD)