[Eastern Asia Tech] Supplemental announcement on board resolution to convene the 2026 Annual General Shareholders' Meeting

1. Date of the board of directors resolution: 2026/04/16 2. Date of shareholders' meeting: 2026/05/29 3. Venue of shareholders' meeting: Raphael Hall, GIS NTU Convention Center (Address: B1, No. 85, Sec. 4, Roosevelt Rd., Taipei City) 4. Method of convening the meeting (Physical/Hybrid/Virtual): Physical shareholders' meeting 5. Cause of convening (1) - Reports: (1): 2025 Business Report. (2): Audit Committee's review report on the 2025 financial statements. (3): Report on the distribution of cash dividends from 2025 earnings. (4): Report on the distribution of employee and director remuneration for 2025. 6. Cause of convening (2) - Acknowledgements: (1): Adoption of the 2025 Business Report and Consolidated Financial Statements. (2): Adoption of the proposal for distribution of 2025 earnings. 7. Cause of convening (3) - Discussions: (1): Proposed amendments to the "Articles of Incorporation" (2): Proposed amendments to the "Rules of Procedure for Shareholders' Meetings" 8. Cause of convening (4) - Elections: (1): Election of the 7th term of Directors of the company. 9. Cause of convening (5) - Other matters: (1): Proposal to release the non-compete restriction on the newly elected 7th term Directors. 10. Extemporary motions: 11. Starting date of suspension of share transfer: 2026/03/31 12. Ending date of suspension of share transfer: 2026/05/29 13. Other matters to be specified: Shareholders may exercise their voting rights electronically for this meeting. The exercise period is from April 29, 2026, to May 26, 2026. Please log in to the Taiwan Depository & Clearing Corporation website and vote according to the instructions. [URL: stockservices.tdcc.com.tw]