ACS: Notice of record date for a ballot

1. Issuer: Architects & Construction Service Corporation
2. Stock code: ACS
3. Par value: VND10,000/share
4. Record date: 30/10/2025
5. Ex-date: 29/10/2025
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 in the Company Charter
- Expected exercise date: Expected from November 10, 2025 to December 1, 2025