VCS: Notice of record date for 2nd-round 2025 dividend advance in cash

1. Issuer: Vicostone Joint Stock Company
2. Stock code: VCS
3. Par value: VND10,000/share
4. Record date: 17/12/2025
5. Ex-date: 16/12/2025
6. Reason:
     * 2nd-round 2025 dividend advance in cash:
          - Exercise rate: 18% (shareholders receive VND1,800 for every 01 share owned)
          - Exercise date: 25/12/2025
          - Place of payment:
               + For deposited shares: securities companies where shares of shareholders have been deposited.
               + For undeposited shares: Vicostone Joint Stock Company in Hoa Lac Hi-tech Park, HOa Lac Commune, Hanoi on working days from 25/12/2025. 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 aforementioned.