Sirius Announces Board Resolution to Convene 115th Year Shareholders' Meeting on Behalf of Parent Company Maoshi (Stock) Co., Ltd.

1. Date of Board Resolution: 115/05/11 (May 11, 2026). 2. Date of Shareholders' Meeting: 115/06/15 (June 15, 2026). 3. Location of Shareholders' Meeting: Not applicable. 4. Reason for Convening - I. Reporting Matters: Report on employee profit sharing for the 114th year. 5. Reason for Convening - II. Approval Matters: (1) 114th year business report and financial statements. (2) 114th year profit distribution proposal. 6. Reason for Convening - III. Discussion Matters: None. 7. Reason for Convening - IV. Election Matters: None. 8. Reason for Convening - V. Other Proposals: None. 9. Reason for Convening - VI. Motion: None. 10. Book Closure Start Date: 115/05/17 (May 17, 2026). 11. Book Closure End Date: 115/06/15 (June 15, 2026). 12. Other matters to be described: None.