Diamond Investment Explains Three Consecutive Months of Negative Operating Revenue

1. Date of fact occurrence: 115/04/09 2. Company Name: Diamond Biotech Investment Co., Ltd. 3. Relationship with the Company (please enter 'This Company' or 'Subsidiary'): This Company 4. Proportion of mutual shareholding: Not applicable 5. Reason for occurrence: Pursuant to the Taiwan Stock Exchange Corporation's letter Tai-Zheng Shang-Yi No. 1121802934, dated June 29, 2023, if the company's operating revenue is negative for three consecutive months, it shall issue a major information notice to alert investors. 6. Countermeasures: The company's operating revenue is recognized based on the valuation gains/losses (both realized and unrealized) of its investment targets. As the operating revenue has been negative for three consecutive months, a major information notice is being issued to alert investors. 7. Other matters to be noted (if the subject of the event or resolution is a publicly issued company or above, this major information also meets the criteria of Article 7, Paragraph 9 of the Enforcement Rules of the Securities Transaction Act regarding material impact on shareholder rights or securities prices): The company's main investment targets are in the biotechnology sector, where stock prices and fair values are significantly affected by R&D outcomes, leading to substantial fluctuations. Therefore, a decline in fair value during the current year may result in negative operating revenue for the company.