SDT: Notice of record date for Annual General Meeting of Shareholders 2025

1. Issuer: Song Da No 10 JSC
2. Stock code: SDT
3. Par value: VND10,000/share
4. Record date: 24/04/2025
5. Ex-date: 23/04/2025
6. Reason:
     * Annual General Meeting of Shareholders 2025
          - Exercise rate: 01 share - 01 voting rights
          - Exercise date: (Expected) 25/06/2025 (announced later)
          - Agenda: Issues under the authority of the General Meeting of Shareholders
          - Place: 11th Floor, Block B, Song Da Corporation Building, Pham Hung Street, My Dinh 1 Ward, Nam Tu Liem District, Hanoi City