[Root] Announcement regarding the signing of an MOU with Oriental Shiraishi Corporation

1. Date of occurrence: 115/05/25. 2. Counterparty: Oriental Shiraishi Corporation. 3. Relationship: None. 4. Duration: 115/05/25. 5. Main content: Evaluate and negotiate business cooperation and the feasibility of a joint venture. 6. Restrictions: Per MOU. 7. Commitments: Per MOU. 8. Other terms: Per MOU. 9. Financial impact: Preliminary consensus, no material impact at this stage. 10. Purpose: Expand business by combining technical and market resources. 11. Other: The project is in the preliminary stage. Formal contracts will be subject to further negotiation and board approval.