CST: Notice of record date for Annual General Meeting of Shareholders 2025

1. Issuer: Cao Son Coal Joint Stock Company
2. Stock code: CST
3. Par value: VND10,000/share
4. Record date: 21/03/2025
5. Ex-date: 20/03/2025
6. Reason: 
     * Annual General Meeting of Shareholders 2025:
          - Exercise rate: 1:1 (01 share – 01 voting rights)
          - Date: Expected time 04/2025
          - Place: Cao Son Coal Joint Stock Company (Group 1, Cao Son 2 area, Cam Son ward, Cam Pha city, Quang Ninh province)
          - Agenda: Annual General Meeting of Shareholders 2025
                 + Report on the operating results of 2024 and operating plan of 2025;
                 + Report of the Board, Supervisory Board 2024, plan of 2025;
                 + Report remuneration of the Board and Supervisory Board 2024, plan of 2025;
                 + Financial statement 2024 (Audited);
                 + Selection of auditor for 2025 Financial Statement;
                 + Profit distribution of 2024, plan of 2025;
                 + Other issues.