EID: Notice of record date for a ballot

1. Issuer: Hanoi Education Development and Investment JSC
2. Stock code: EID
3. Par value: VND 10,000/share
4. Record date: 11/05/2023
5. Ex-date: 10/05/2023
6. Reason:
     * For a ballot:
          - Exercise rate: 01 share – 01 voting right
          - Exercise date: Expected deadline for sending opinion ballots and receiving shareholder's opinion sheets is from May 17, 2023 to May 30, 2023.
          - Exercise place: HEID's office building, lane 12 Lang Ha, Thanh Cong ward, Ba Dinh district, Hanoi city
          - Content of the ballot: + Approving the adjustment of the time to pay the 2022 dividend by cash in Proposal No. 21/TTr-DHDCD according to the Resolution of the Annual General Meeting of Shareholders No. 05/NQ-DHDCD dated 21/ 04/2023.
+ Other contents under the authority of the General Meeting of Shareholders (if any);