SDI Corporation announced Company's ex-dividend record date of cash dividends for 2022 earnings distribution plan. Date of the resolution by the board of directors or shareholders meeting or decision by the Company: May 30, 2023. Type and monetary amount of dividend distribution: TWD 3.2 of cash dividend per shares; totally TWD 582,848,797 allocated for cash dividend.

Ex-rights (ex-dividend) trading date: August 3, 2023. Ex-rights (ex-dividend) record date: August 10, 2023. Payment date of cash dividend distribution: August 31, 2023.