[Ruizhi] Announcement of Company's Completion of Treasury Share Cancellation and Registered Capital Change Registration

1. Date of competent authority's approval for capital reduction: 115/04/14 2. Date of completion of capital change registration: 115/04/14 3. Impact on financial statements (including differences in paid-in capital and outstanding shares, and impact on net asset value per share): (1) This time, 10,000,000 treasury shares were cancelled, with a face value of NT$10 per share, reducing capital by a total of NT$100,000,000. (2) Before the capital reduction from treasury share cancellation: The company's paid-in capital was NT$5,048,951,050, with 504,895,105 issued shares, 484,995,105 outstanding shares, and a net asset value per share of NT$20.95. (3) After the capital reduction from treasury share cancellation: The company's paid-in capital is NT$4,948,951,050, with 494,895,105 issued shares, 484,995,105 outstanding shares, and a net asset value per share of NT$20.95. The above net asset value per share is calculated based on the consolidated report audited by an accountant for the fourth quarter of 2025. 4. Planned share swap plan: Not applicable. 5. Number of common shares expected to be listed after capital reduction: Not applicable. 6. Proportion of listed common shares to outstanding common shares after capital reduction (Number of listed common shares after capital reduction / Number of outstanding common shares after capital reduction): Not applicable. 7. If the number of listed common shares after capital reduction is less than 60 million shares and less than 25%, please explain the measures to address low stock liquidity: Not applicable. 8. Other matters to be noted: The company obtained the approval letter for the change registration from the Department of Commerce, Ministry of Economic Affairs on April 15, 115 (Republic of China calendar). Keywords: Major Event Announcement