Shanyinshui: Announcement by Subsidiary Green Mountain Forest Development Co., Ltd. on the Election of Chairman by the Board of Directors

1. Date of board resolution or change: 2026/05/08 2. Type of personnel (please enter Chairman or General Manager): Chairman 3. Name of former incumbent: Kuo Chi-An 4. Brief resume of former incumbent: Chairman of Green Mountain Forest Development Co., Ltd. 5. Name of new incumbent: Kuo Chi-An 6. Brief resume of new incumbent: Chairman of Green Mountain Forest Development Co., Ltd. 7. Type of change (please enter "resignation", "dismissal", "expiration of term", "job adjustment", "layoff", "retirement", "death" or "new appointment"): Expiration of term 8. Reason for change: Expiration of term 9. Effective date of new appointment: 2026/05/08 10. Other matters that should be specified (if the subject of the event or resolution is a public offering company or above, this material information also complies with Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act, which stipulates matters that have a significant impact on shareholders' equity or securities prices): None.