Huang Chang Construction Announces Board of Directors' Resolution to Convene the 2026 Annual General Meeting of Shareholders (Additional Proposals)

1. Date of board resolution: 2026/05/05 2. Date of shareholders' meeting: 2026/06/17 3. Location of shareholders' meeting: Conference Room, 3F, No. 539, Tanmei Street, Neihu District, Taipei City 4. Method of convening shareholders' meeting (physical/video-assisted/video): Physical shareholders' meeting 5. Agenda item one: Reporting matters (1): The company's 2025 business overview (2): The company's 2025 audit committee review report (3): Report on the company's 2025 employee and director compensation distribution (4): Report on the company's 2025 director compensation (5): Report on the execution status of the company's share buyback (6): Report on the company's 2025 earnings distribution cash dividend situation 6. Agenda item two: Approval matters (1): Approval of the company's 2025 financial statements and tables (2): Approval of the company's 2025 earnings distribution plan 7. Agenda item three: Discussion matters (1): Proposal to revise the company's shareholders' meeting rules of procedure (2): Proposal to revise the company's articles of incorporation (3): Proposal to revise the company's director compensation payment regulations (4): Proposal to revise the company's director election methods 8. Agenda item four: Election matters (1): Proposal for the comprehensive re-election of the company's directors 9. Ad-hoc motions: 10. Book close start date: 2026/04/19 11. Book close end date: 2026/06/17 12. Other matters to be specified: Additional reporting matter: Report on the company's 2025 earnings distribution cash dividend situation. Additional discussion matters: Proposal to revise the company's shareholders' meeting rules of procedure, proposal to revise the company's director compensation payment regulations, proposal to revise the company's director election methods.