STH: Notice of record date for a ballot

1. Issuer: Thai Nguyen Book Publishing Joint Stock Company
2. Stock code: STH
3. Par value: VND10,000/share
4. Record date: 27/07/2023
5. Ex-date: 26/07/2023
6. Reason:
     * For a ballot:
          - Exercise rate: 1:1 01 share - 01 voting rights
          - Expected exercise date: In 07-08/2023
          - Content of the ballot: Approving the audited consolidated financial statements for 2022 and other contents under its authority.
          - Expected place: Thai Nguyen Book Publishing Joint Stock Company, No.65, Group 2, Hoang Van Thu street, Phan Dinh Phung ward, Thai Nguyen province