CSI: Notice of record date for a ballot

1. Issuer: Vietnam Construction Securities Joint Stock Company
2. Stock code: CSI
3. Par value: VND10,000/share
4. Record date: 06/11/2025
5. Ex-date: 05/11/2025
6. Reason: 
     * For a ballot: 
          - Exercise rate: 01 share – 01 voting rights
          - Content of the ballot: Approving the change of company name and other contents under the authority of the General Meeting of Shareholders (if any).
          - Expected exercise date: 12/11/2025 – 24/11/2025
          - Place: 12th Floor, ROX Tower Building, 54A Nguyen Chi Thanh, Lang Ward, Hanoi