CST: Notice of record date for dividend payment in cash

1. Issuer: Cao Son Coal Joint Stock Company
2. Stock code: CST
3. Par value: VND10,000/share
4. Record date: 23/05/2024
5. Ex-date: 22/05/2024
6. Reason:
     * Dividend payment in cash:
          - Exercise rate: 20%/share (Shareholders receive VND 2,000 for every share they own)
          - Exercise date: 24/06/2024
          - Place of payment:
               + For deposited shares: securities companies where shares of shareholders have been deposited.
               + For undeposited shares: Cao Son Coal Joint Stock Company (Address: Group 1, Cao Son 2 area, Cam Son ward, Cam Pha city, Quang Ninh province) on working days from 24/6/2024. Securities certificate and Identification Card (original copy) are required. In case of authorization, a proxy with certified seal of the local authority is further requested in addition to the mentioned above.