VLB: Notice of record date for a ballot

1. Issuer: Bien Hoa Building Materials Production and Construction Joint Stock Company
2. Stock code: VLB
3. Par value: VND10,000/share
4. Record date: 12/11/2025
5. Ex-date: 11/11/2025
6. Reason:
     * For a ballot:
          - Exercise rate: 01 share - 01 voting rights
          - Content of the ballot: Issues under the authority of the General Meeting of Shareholders as prescribed by law and the Company's Charter
          - Expected exercise date:
          + Date of sending voting ballots to shareholders: expected on November 21, 2025
          + Deadline for shareholders to return voting ballots: before 5:00 p.m. on December 8, 2025 (calculated by postmark)
          - Place: Head office of Bien Hoa Construction and Construction Materials Production Joint Stock Company at K4/79C, Nguyen Tri Phuong Street, Ward 3, Bien Hoa Ward, Dong Nai Province.