IKKA-KY: Announcement of Board Resolution to Convene the 115th Shareholder Meeting (New Agenda Item Added)

1. Board Resolution Date: May 7, 115 (2026). 2. Shareholder Meeting Date: June 26, 115 (2026). 3. Shareholder Meeting Location: Meeting Room, 15th Floor, No. 99, Section 2, Fuxing North Road, Songshan District, Taipei City (Conference Center). 4. Shareholder Meeting Convening Method: Physical Shareholder Meeting. 5. Meeting Agenda Items: (Reports: 114 Annual Business Report, Audit Committee Report, Employee/Director Remuneration, Profit Distribution; Approvals: 114 Business Report & Consolidated Financial Statements, 114 Profit Distribution Table; Discussions: Amendment of Articles of Incorporation, Asset Acquisition/Disposal Rules, Shareholder Meeting Rules (New); Elections: Fourth Term Directors (6) and Independent Directors (3); Other: Release of Non-Compete Restriction for Directors. 10. Provisional Motion. 11. Record Date Start: April 28, 115 (2026). 12. Record Date End: June 26, 115 (2026). 13. Other Matters to be Notified: 1. Shareholder Proposal and Director Nomination Procedure: Shareholders wishing to propose or nominate must submit written proposals/nominations between April 13 and April 23, 115 (2026), to the Administration Department at the address in Guansi Township, Hsinchu County. Specific conditions for proposal acceptance are listed. 2. Electronic voting is available from May 27 to June 23, 115 (2026).